Move ImagePreprocessing to "processors" folder.

PiperOrigin-RevId: 490444821

mediapipe/tasks/cc/components/BUILD

@@ -12,55 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-load("//mediapipe/framework/port:build_config.bzl", "mediapipe_proto_library")
-
 package(default_visibility = ["//mediapipe/tasks:internal"])
 
 licenses(["notice"])
 
-mediapipe_proto_library(
-    name = "image_preprocessing_options_proto",
-    srcs = ["image_preprocessing_options.proto"],
-    deps = [
-        "//mediapipe/calculators/tensor:image_to_tensor_calculator_proto",
-        "//mediapipe/framework:calculator_options_proto",
-        "//mediapipe/framework:calculator_proto",
-    ],
-)
-
-cc_library(
-    name = "image_preprocessing",
-    srcs = ["image_preprocessing.cc"],
-    hdrs = ["image_preprocessing.h"],
-    deps = [
-        ":image_preprocessing_options_cc_proto",
-        "//mediapipe/calculators/core:pass_through_calculator",
-        "//mediapipe/calculators/image:image_clone_calculator",
-        "//mediapipe/calculators/image:image_clone_calculator_cc_proto",
-        "//mediapipe/calculators/image:image_properties_calculator",
-        "//mediapipe/calculators/tensor:image_to_tensor_calculator",
-        "//mediapipe/calculators/tensor:image_to_tensor_calculator_cc_proto",
-        "//mediapipe/calculators/tensor:inference_calculator_cc_proto",
-        "//mediapipe/framework:calculator_framework",
-        "//mediapipe/framework/api2:builder",
-        "//mediapipe/framework/api2:port",
-        "//mediapipe/framework/formats:image",
-        "//mediapipe/framework/formats:rect_cc_proto",
-        "//mediapipe/framework/formats:tensor",
-        "//mediapipe/gpu:gpu_origin_cc_proto",
-        "//mediapipe/tasks/cc:common",
-        "//mediapipe/tasks/cc/core:model_resources",
-        "//mediapipe/tasks/cc/core/proto:acceleration_cc_proto",
-        "//mediapipe/tasks/cc/vision/utils:image_tensor_specs",
-        "@com_google_absl//absl/status",
-        "@com_google_absl//absl/status:statusor",
-        "@org_tensorflow//tensorflow/lite/schema:schema_fbs",
-    ],
-    alwayslink = 1,
-)
-
-# TODO: Enable this test
-
 # TODO: Investigate rewriting the build rule to only link
 # the Bert Preprocessor if it's needed.
 cc_library(

mediapipe/tasks/cc/components/processors/BUILD

@@ -100,3 +100,36 @@ cc_library(
     ],
     alwayslink = 1,
 )
+
+cc_library(
+    name = "image_preprocessing_graph",
+    srcs = ["image_preprocessing_graph.cc"],
+    hdrs = ["image_preprocessing_graph.h"],
+    deps = [
+        "//mediapipe/calculators/core:pass_through_calculator",
+        "//mediapipe/calculators/image:image_clone_calculator",
+        "//mediapipe/calculators/image:image_clone_calculator_cc_proto",
+        "//mediapipe/calculators/image:image_properties_calculator",
+        "//mediapipe/calculators/tensor:image_to_tensor_calculator",
+        "//mediapipe/calculators/tensor:image_to_tensor_calculator_cc_proto",
+        "//mediapipe/calculators/tensor:inference_calculator_cc_proto",
+        "//mediapipe/framework:calculator_framework",
+        "//mediapipe/framework/api2:builder",
+        "//mediapipe/framework/api2:port",
+        "//mediapipe/framework/formats:image",
+        "//mediapipe/framework/formats:rect_cc_proto",
+        "//mediapipe/framework/formats:tensor",
+        "//mediapipe/gpu:gpu_origin_cc_proto",
+        "//mediapipe/tasks/cc:common",
+        "//mediapipe/tasks/cc/components/processors/proto:image_preprocessing_graph_options_cc_proto",
+        "//mediapipe/tasks/cc/core:model_resources",
+        "//mediapipe/tasks/cc/core/proto:acceleration_cc_proto",
+        "//mediapipe/tasks/cc/vision/utils:image_tensor_specs",
+        "@com_google_absl//absl/status",
+        "@com_google_absl//absl/status:statusor",
+        "@org_tensorflow//tensorflow/lite/schema:schema_fbs",
+    ],
+    alwayslink = 1,
+)
+
+# TODO: Enable this test

mediapipe/tasks/cc/components/processors/image_preprocessing_graph.cc

@@ -12,7 +12,7 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 ==============================================================================*/
-#include "mediapipe/tasks/cc/components/image_preprocessing.h"
+#include "mediapipe/tasks/cc/components/processors/image_preprocessing_graph.h"
 
 #include <array>
 #include <complex>
@@ -33,7 +33,7 @@ limitations under the License.
 #include "mediapipe/framework/formats/tensor.h"
 #include "mediapipe/gpu/gpu_origin.pb.h"
 #include "mediapipe/tasks/cc/common.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing_options.pb.h"
+#include "mediapipe/tasks/cc/components/processors/proto/image_preprocessing_graph_options.pb.h"
 #include "mediapipe/tasks/cc/core/model_resources.h"
 #include "mediapipe/tasks/cc/core/proto/acceleration.pb.h"
 #include "mediapipe/tasks/cc/vision/utils/image_tensor_specs.h"
@@ -42,6 +42,7 @@ limitations under the License.
 namespace mediapipe {
 namespace tasks {
 namespace components {
+namespace processors {
 namespace {
 
 using ::mediapipe::Tensor;
@@ -144,9 +145,9 @@ bool DetermineImagePreprocessingGpuBackend(
   return acceleration.has_gpu();
 }
 
-absl::Status ConfigureImagePreprocessing(const ModelResources& model_resources,
+absl::Status ConfigureImagePreprocessingGraph(
-                                         bool use_gpu,
+    const ModelResources& model_resources, bool use_gpu,
-                                         ImagePreprocessingOptions* options) {
+    proto::ImagePreprocessingGraphOptions* options) {
   ASSIGN_OR_RETURN(auto image_tensor_specs,
                    BuildImageTensorSpecs(model_resources));
   MP_RETURN_IF_ERROR(ConfigureImageToTensorCalculator(
@@ -154,9 +155,9 @@ absl::Status ConfigureImagePreprocessing(const ModelResources& model_resources,
   // The GPU backend isn't able to process int data. If the input tensor is
   // quantized, forces the image preprocessing graph to use CPU backend.
   if (use_gpu && image_tensor_specs.tensor_type != tflite::TensorType_UINT8) {
-    options->set_backend(ImagePreprocessingOptions::GPU_BACKEND);
+    options->set_backend(proto::ImagePreprocessingGraphOptions::GPU_BACKEND);
   } else {
-    options->set_backend(ImagePreprocessingOptions::CPU_BACKEND);
+    options->set_backend(proto::ImagePreprocessingGraphOptions::CPU_BACKEND);
   }
   return absl::OkStatus();
 }
@@ -170,8 +171,7 @@ Source<Image> AddDataConverter(Source<Image> image_in, Graph& graph,
   return image_converter[Output<Image>("")];
 }
 
-// A "mediapipe.tasks.components.ImagePreprocessingSubgraph" performs image
+// An ImagePreprocessingGraph performs image preprocessing.
-// preprocessing.
 // - Accepts CPU input images and outputs CPU tensors.
 //
 // Inputs:
@@ -192,7 +192,7 @@ Source<Image> AddDataConverter(Source<Image> image_in, Graph& graph,
 //     An std::array<float, 4> representing the letterbox padding from the 4
 //     sides ([left, top, right, bottom]) of the output image, normalized to
 //     [0.f, 1.f] by the output dimensions. The padding values are non-zero only
-//     when the "keep_aspect_ratio" is true in ImagePreprocessingOptions.
+//     when the "keep_aspect_ratio" is true in ImagePreprocessingGraphOptions.
 //   IMAGE_SIZE - std::pair<int,int> @Optional
 //     The size of the original input image as a <width, height> pair.
 //   IMAGE - Image @Optional
@@ -200,15 +200,15 @@ Source<Image> AddDataConverter(Source<Image> image_in, Graph& graph,
 //     GPU).
 //
 // The recommended way of using this subgraph is through the GraphBuilder API
-// using the 'ConfigureImagePreprocessing()' function. See header file for more
+// using the 'ConfigureImagePreprocessingGraph()' function. See header file for
-// details.
+// more details.
-class ImagePreprocessingSubgraph : public Subgraph {
+class ImagePreprocessingGraph : public Subgraph {
  public:
   absl::StatusOr<CalculatorGraphConfig> GetConfig(
       SubgraphContext* sc) override {
     Graph graph;
     auto output_streams = BuildImagePreprocessing(
-        sc->Options<ImagePreprocessingOptions>(),
+        sc->Options<proto::ImagePreprocessingGraphOptions>(),
         graph[Input<Image>(kImageTag)],
         graph[Input<NormalizedRect>::Optional(kNormRectTag)], graph);
     output_streams.tensors >> graph[Output<std::vector<Tensor>>(kTensorsTag)];
@@ -233,24 +233,25 @@ class ImagePreprocessingSubgraph : public Subgraph {
   //   - the image that has pixel data stored on the target storage
   //     (mediapipe::Image).
   //
-  // options: the mediapipe tasks ImagePreprocessingOptions.
+  // options: the mediapipe tasks ImagePreprocessingGraphOptions.
   // image_in: (mediapipe::Image) stream to preprocess.
   // graph: the mediapipe builder::Graph instance to be updated.
   ImagePreprocessingOutputStreams BuildImagePreprocessing(
-      const ImagePreprocessingOptions& options, Source<Image> image_in,
+      const proto::ImagePreprocessingGraphOptions& options,
-      Source<NormalizedRect> norm_rect_in, Graph& graph) {
+      Source<Image> image_in, Source<NormalizedRect> norm_rect_in,
+      Graph& graph) {
     // Convert image to tensor.
     auto& image_to_tensor = graph.AddNode("ImageToTensorCalculator");
     image_to_tensor.GetOptions<mediapipe::ImageToTensorCalculatorOptions>()
         .CopyFrom(options.image_to_tensor_options());
     switch (options.backend()) {
-      case ImagePreprocessingOptions::CPU_BACKEND: {
+      case proto::ImagePreprocessingGraphOptions::CPU_BACKEND: {
         auto cpu_image =
             AddDataConverter(image_in, graph, /*output_on_gpu=*/false);
         cpu_image >> image_to_tensor.In(kImageTag);
         break;
       }
-      case ImagePreprocessingOptions::GPU_BACKEND: {
+      case proto::ImagePreprocessingGraphOptions::GPU_BACKEND: {
         auto gpu_image =
             AddDataConverter(image_in, graph, /*output_on_gpu=*/true);
         gpu_image >> image_to_tensor.In(kImageTag);
@@ -284,8 +285,9 @@ class ImagePreprocessingSubgraph : public Subgraph {
   }
 };
 REGISTER_MEDIAPIPE_GRAPH(
-    ::mediapipe::tasks::components::ImagePreprocessingSubgraph);
+    ::mediapipe::tasks::components::processors::ImagePreprocessingGraph);
 
+}  // namespace processors
 }  // namespace components
 }  // namespace tasks
 }  // namespace mediapipe

mediapipe/tasks/cc/components/processors/image_preprocessing_graph.h

@@ -13,35 +13,36 @@ See the License for the specific language governing permissions and
 limitations under the License.
 ==============================================================================*/
 
-#ifndef MEDIAPIPE_TASKS_CC_COMPONENTS_IMAGE_PREPROCESSING_H_
+#ifndef MEDIAPIPE_TASKS_CC_COMPONENTS_PROCESSORS_IMAGE_PREPROCESSING_GRAPH_H_
-#define MEDIAPIPE_TASKS_CC_COMPONENTS_IMAGE_PREPROCESSING_H_
+#define MEDIAPIPE_TASKS_CC_COMPONENTS_PROCESSORS_IMAGE_PREPROCESSING_GRAPH_H_
 
 #include "absl/status/status.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing_options.pb.h"
+#include "mediapipe/tasks/cc/components/processors/proto/image_preprocessing_graph_options.pb.h"
 #include "mediapipe/tasks/cc/core/model_resources.h"
 #include "mediapipe/tasks/cc/core/proto/acceleration.pb.h"
 
 namespace mediapipe {
 namespace tasks {
 namespace components {
+namespace processors {
 
-// Configures an ImagePreprocessing subgraph using the provided model resources
+// Configures an ImagePreprocessingGraph using the provided model resources
 // When use_gpu is true, use GPU as backend to convert image to tensor.
 // - Accepts CPU input images and outputs CPU tensors.
 //
 // Example usage:
 //
 //   auto& preprocessing =
-//       graph.AddNode("mediapipe.tasks.components.ImagePreprocessingSubgraph");
+//       graph.AddNode("mediapipe.tasks.components.processors.ImagePreprocessingGraph");
 //   core::proto::Acceleration acceleration;
 //   acceleration.mutable_xnnpack();
 //   bool use_gpu = DetermineImagePreprocessingGpuBackend(acceleration);
-//   MP_RETURN_IF_ERROR(ConfigureImagePreprocessing(
+//   MP_RETURN_IF_ERROR(ConfigureImagePreprocessingGraph(
 //       model_resources,
 //       use_gpu,
-//       &preprocessing.GetOptions<ImagePreprocessingOptions>()));
+//       &preprocessing.GetOptions<ImagePreprocessingGraphOptions>()));
 //
-// The resulting ImagePreprocessing subgraph has the following I/O:
+// The resulting ImagePreprocessingGraph has the following I/O:
 // Inputs:
 //   IMAGE - Image
 //     The image to preprocess.
@@ -61,17 +62,18 @@ namespace components {
 //   IMAGE - Image @Optional
 //     The image that has the pixel data stored on the target storage (CPU vs
 //     GPU).
-absl::Status ConfigureImagePreprocessing(
+absl::Status ConfigureImagePreprocessingGraph(
     const core::ModelResources& model_resources, bool use_gpu,
-    ImagePreprocessingOptions* options);
+    proto::ImagePreprocessingGraphOptions* options);
 
-// Determine if the image preprocessing subgraph should use GPU as the backend
+// Determine if the image preprocessing graph should use GPU as the backend
 // according to the given acceleration setting.
 bool DetermineImagePreprocessingGpuBackend(
     const core::proto::Acceleration& acceleration);
 
+}  // namespace processors
 }  // namespace components
 }  // namespace tasks
 }  // namespace mediapipe
 
-#endif  // MEDIAPIPE_TASKS_CC_COMPONENTS_IMAGE_PREPROCESSING_H_
+#endif  // MEDIAPIPE_TASKS_CC_COMPONENTS_PROCESSORS_IMAGE_PREPROCESSING_GRAPH_H_

mediapipe/tasks/cc/components/processors/image_preprocessing_graph_test.cc

@@ -0,0 +1,343 @@
+/* Copyright 2022 The MediaPipe Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+
+#include "mediapipe/tasks/cc/components/processors/image_preprocessing_graph.h"
+
+#include <memory>
+#include <utility>
+
+#include "absl/flags/flag.h"
+#include "absl/status/statusor.h"
+#include "mediapipe/calculators/tensor/image_to_tensor_calculator.pb.h"
+#include "mediapipe/framework/api2/builder.h"
+#include "mediapipe/framework/api2/port.h"
+#include "mediapipe/framework/calculator_framework.h"
+#include "mediapipe/framework/deps/file_path.h"
+#include "mediapipe/framework/formats/image.h"
+#include "mediapipe/framework/formats/tensor.h"
+#include "mediapipe/framework/packet.h"
+#include "mediapipe/framework/port/gmock.h"
+#include "mediapipe/framework/port/gtest.h"
+#include "mediapipe/framework/port/status_matchers.h"
+#include "mediapipe/tasks/cc/components/processors/proto/image_preprocessing_graph_options.pb.h"
+#include "mediapipe/tasks/cc/core/model_resources.h"
+#include "mediapipe/tasks/cc/core/proto/acceleration.pb.h"
+#include "mediapipe/tasks/cc/core/proto/external_file.pb.h"
+#include "mediapipe/tasks/cc/core/task_runner.h"
+#include "mediapipe/tasks/cc/vision/utils/image_utils.h"
+#include "tensorflow/lite/core/shims/cc/shims_test_util.h"
+
+namespace mediapipe {
+namespace tasks {
+namespace components {
+namespace processors {
+namespace {
+
+using ::mediapipe::api2::Input;
+using ::mediapipe::api2::Output;
+using ::mediapipe::api2::builder::Graph;
+using ::mediapipe::api2::builder::Source;
+using ::mediapipe::file::JoinPath;
+using ::mediapipe::tasks::core::ModelResources;
+using ::mediapipe::tasks::core::TaskRunner;
+using ::mediapipe::tasks::vision::DecodeImageFromFile;
+using ::testing::ContainerEq;
+using ::testing::HasSubstr;
+using ::testing::TestParamInfo;
+using ::testing::TestWithParam;
+using ::testing::Values;
+
+constexpr char kTestDataDirectory[] = "/mediapipe/tasks/testdata/vision/";
+constexpr char kMobileNetFloatWithMetadata[] = "mobilenet_v2_1.0_224.tflite";
+constexpr char kMobileNetFloatWithoutMetadata[] =
+    "mobilenet_v1_0.25_224_1_default_1.tflite";
+constexpr char kMobileNetQuantizedWithMetadata[] =
+    "mobilenet_v1_0.25_224_quant.tflite";
+constexpr char kMobileNetQuantizedWithoutMetadata[] =
+    "mobilenet_v1_0.25_192_quantized_1_default_1.tflite";
+
+constexpr char kTestImage[] = "burger.jpg";
+constexpr int kTestImageWidth = 480;
+constexpr int kTestImageHeight = 325;
+
+constexpr char kTestModelResourcesTag[] = "test_model_resources";
+constexpr std::array<float, 16> kIdentityMatrix = {1, 0, 0, 0, 0, 1, 0, 0,
+                                                   0, 0, 1, 0, 0, 0, 0, 1};
+
+constexpr char kImageTag[] = "IMAGE";
+constexpr char kImageName[] = "image_in";
+constexpr char kMatrixTag[] = "MATRIX";
+constexpr char kMatrixName[] = "matrix_out";
+constexpr char kTensorsTag[] = "TENSORS";
+constexpr char kTensorsName[] = "tensors_out";
+constexpr char kImageSizeTag[] = "IMAGE_SIZE";
+constexpr char kImageSizeName[] = "image_size_out";
+constexpr char kLetterboxPaddingTag[] = "LETTERBOX_PADDING";
+constexpr char kLetterboxPaddingName[] = "letterbox_padding_out";
+
+constexpr float kLetterboxMaxAbsError = 1e-5;
+
+// Helper function to get ModelResources.
+absl::StatusOr<std::unique_ptr<ModelResources>> CreateModelResourcesForModel(
+    absl::string_view model_name) {
+  auto external_file = std::make_unique<core::proto::ExternalFile>();
+  external_file->set_file_name(JoinPath("./", kTestDataDirectory, model_name));
+  return ModelResources::Create(kTestModelResourcesTag,
+                                std::move(external_file));
+}
+
+// Helper function to create a TaskRunner from ModelResources.
+absl::StatusOr<std::unique_ptr<TaskRunner>> CreateTaskRunner(
+    const ModelResources& model_resources, bool keep_aspect_ratio) {
+  Graph graph;
+
+  auto& preprocessing = graph.AddNode(
+      "mediapipe.tasks.components.processors.ImagePreprocessingGraph");
+  auto& options =
+      preprocessing.GetOptions<proto::ImagePreprocessingGraphOptions>();
+  options.mutable_image_to_tensor_options()->set_keep_aspect_ratio(
+      keep_aspect_ratio);
+  MP_RETURN_IF_ERROR(
+      ConfigureImagePreprocessingGraph(model_resources, false, &options));
+  graph[Input<Image>(kImageTag)].SetName(kImageName) >>
+      preprocessing.In(kImageTag);
+  preprocessing.Out(kTensorsTag).SetName(kTensorsName) >>
+      graph[Output<std::vector<Tensor>>(kTensorsTag)];
+  preprocessing.Out(kMatrixTag).SetName(kMatrixName) >>
+      graph[Output<std::array<float, 16>>(kMatrixTag)];
+  preprocessing.Out(kImageSizeTag).SetName(kImageSizeName) >>
+      graph[Output<std::pair<int, int>>(kImageSizeTag)];
+  preprocessing.Out(kLetterboxPaddingTag).SetName(kLetterboxPaddingName) >>
+      graph[Output<std::array<float, 4>>(kLetterboxPaddingTag)];
+
+  return TaskRunner::Create(graph.GetConfig());
+}
+
+class ConfigureTest : public tflite_shims::testing::Test {};
+
+TEST_F(ConfigureTest, SucceedsWithQuantizedModelWithMetadata) {
+  MP_ASSERT_OK_AND_ASSIGN(
+      auto model_resources,
+      CreateModelResourcesForModel(kMobileNetQuantizedWithMetadata));
+
+  proto::ImagePreprocessingGraphOptions options;
+  MP_EXPECT_OK(
+      ConfigureImagePreprocessingGraph(*model_resources, false, &options));
+
+  EXPECT_THAT(options, EqualsProto(
+                           R"pb(image_to_tensor_options {
+                                  output_tensor_width: 224
+                                  output_tensor_height: 224
+                                  output_tensor_uint_range { min: 0 max: 255 }
+                                  gpu_origin: TOP_LEFT
+                                }
+                                backend: CPU_BACKEND)pb"));
+}
+
+TEST_F(ConfigureTest, SucceedsWithQuantizedModelWithoutMetadata) {
+  MP_ASSERT_OK_AND_ASSIGN(
+      auto model_resources,
+      CreateModelResourcesForModel(kMobileNetQuantizedWithoutMetadata));
+
+  proto::ImagePreprocessingGraphOptions options;
+  MP_EXPECT_OK(
+      ConfigureImagePreprocessingGraph(*model_resources, false, &options));
+
+  EXPECT_THAT(options, EqualsProto(
+                           R"pb(image_to_tensor_options {
+                                  output_tensor_width: 192
+                                  output_tensor_height: 192
+                                  output_tensor_uint_range { min: 0 max: 255 }
+                                  gpu_origin: TOP_LEFT
+                                }
+                                backend: CPU_BACKEND)pb"));
+}
+
+TEST_F(ConfigureTest, SucceedsWithFloatModelWithMetadata) {
+  MP_ASSERT_OK_AND_ASSIGN(
+      auto model_resources,
+      CreateModelResourcesForModel(kMobileNetFloatWithMetadata));
+
+  proto::ImagePreprocessingGraphOptions options;
+  MP_EXPECT_OK(
+      ConfigureImagePreprocessingGraph(*model_resources, false, &options));
+
+  EXPECT_THAT(options, EqualsProto(
+                           R"pb(image_to_tensor_options {
+                                  output_tensor_width: 224
+                                  output_tensor_height: 224
+                                  output_tensor_float_range { min: -1 max: 1 }
+                                  gpu_origin: TOP_LEFT
+                                }
+                                backend: CPU_BACKEND)pb"));
+}
+
+TEST_F(ConfigureTest, SucceedsWithQuantizedModelFallbacksCpuBackend) {
+  MP_ASSERT_OK_AND_ASSIGN(
+      auto model_resources,
+      CreateModelResourcesForModel(kMobileNetQuantizedWithMetadata));
+
+  proto::ImagePreprocessingGraphOptions options;
+  core::proto::Acceleration acceleration;
+  acceleration.mutable_gpu();
+  bool use_gpu = DetermineImagePreprocessingGpuBackend(acceleration);
+  EXPECT_TRUE(use_gpu);
+  MP_EXPECT_OK(
+      ConfigureImagePreprocessingGraph(*model_resources, use_gpu, &options));
+
+  EXPECT_THAT(options, EqualsProto(
+                           R"pb(image_to_tensor_options {
+                                  output_tensor_width: 224
+                                  output_tensor_height: 224
+                                  output_tensor_uint_range { min: 0 max: 255 }
+                                  gpu_origin: TOP_LEFT
+                                }
+                                backend: CPU_BACKEND)pb"));
+}
+
+TEST_F(ConfigureTest, SucceedsWithFloatModelGpuBackend) {
+  MP_ASSERT_OK_AND_ASSIGN(
+      auto model_resources,
+      CreateModelResourcesForModel(kMobileNetFloatWithMetadata));
+
+  proto::ImagePreprocessingGraphOptions options;
+  core::proto::Acceleration acceleration;
+  acceleration.mutable_gpu();
+  bool use_gpu = DetermineImagePreprocessingGpuBackend(acceleration);
+  EXPECT_TRUE(use_gpu);
+  MP_EXPECT_OK(
+      ConfigureImagePreprocessingGraph(*model_resources, use_gpu, &options));
+
+  EXPECT_THAT(options, EqualsProto(
+                           R"pb(image_to_tensor_options {
+                                  output_tensor_width: 224
+                                  output_tensor_height: 224
+                                  output_tensor_float_range { min: -1 max: 1 }
+                                  gpu_origin: TOP_LEFT
+                                }
+                                backend: GPU_BACKEND)pb"));
+}
+
+TEST_F(ConfigureTest, FailsWithFloatModelWithoutMetadata) {
+  MP_ASSERT_OK_AND_ASSIGN(
+      auto model_resources,
+      CreateModelResourcesForModel(kMobileNetFloatWithoutMetadata));
+
+  proto::ImagePreprocessingGraphOptions options;
+  auto status =
+      ConfigureImagePreprocessingGraph(*model_resources, false, &options);
+
+  EXPECT_EQ(status.code(), absl::StatusCode::kNotFound);
+  EXPECT_THAT(status.message(),
+              HasSubstr("requires specifying NormalizationOptions metadata"));
+}
+
+// Struct holding the parameters for parameterized PreprocessingTest class.
+struct PreprocessingParams {
+  // The name of this test, for convenience when displaying test results.
+  std::string test_name;
+  // The filename of the model to test.
+  std::string input_model_name;
+  // If true, keep test image aspect ratio.
+  bool keep_aspect_ratio;
+  // The expected output tensor type.
+  Tensor::ElementType expected_type;
+  // The expected outoput tensor shape.
+  std::vector<int> expected_shape;
+  // The expected output letterbox padding;
+  std::array<float, 4> expected_letterbox_padding;
+};
+
+class PreprocessingTest : public testing::TestWithParam<PreprocessingParams> {};
+
+TEST_P(PreprocessingTest, Succeeds) {
+  MP_ASSERT_OK_AND_ASSIGN(
+      Image image,
+      DecodeImageFromFile(JoinPath("./", kTestDataDirectory, kTestImage)));
+  MP_ASSERT_OK_AND_ASSIGN(
+      auto model_resources,
+      CreateModelResourcesForModel(GetParam().input_model_name));
+  MP_ASSERT_OK_AND_ASSIGN(
+      auto task_runner,
+      CreateTaskRunner(*model_resources, GetParam().keep_aspect_ratio));
+
+  auto output_packets =
+      task_runner->Process({{kImageName, MakePacket<Image>(std::move(image))}});
+  MP_ASSERT_OK(output_packets);
+
+  const std::vector<Tensor>& tensors =
+      (*output_packets)[kTensorsName].Get<std::vector<Tensor>>();
+  EXPECT_EQ(tensors.size(), 1);
+  EXPECT_EQ(tensors[0].element_type(), GetParam().expected_type);
+  EXPECT_THAT(tensors[0].shape().dims, ContainerEq(GetParam().expected_shape));
+  auto& matrix = (*output_packets)[kMatrixName].Get<std::array<float, 16>>();
+  if (!GetParam().keep_aspect_ratio) {
+    for (int i = 0; i < matrix.size(); ++i) {
+      EXPECT_FLOAT_EQ(matrix[i], kIdentityMatrix[i]);
+    }
+  }
+  auto& image_size =
+      (*output_packets)[kImageSizeName].Get<std::pair<int, int>>();
+  EXPECT_EQ(image_size.first, kTestImageWidth);
+  EXPECT_EQ(image_size.second, kTestImageHeight);
+  std::array<float, 4> letterbox_padding =
+      (*output_packets)[kLetterboxPaddingName].Get<std::array<float, 4>>();
+  for (int i = 0; i < letterbox_padding.size(); ++i) {
+    EXPECT_NEAR(letterbox_padding[i], GetParam().expected_letterbox_padding[i],
+                kLetterboxMaxAbsError);
+  }
+}
+
+INSTANTIATE_TEST_SUITE_P(
+    PreprocessingTest, PreprocessingTest,
+    Values(
+        PreprocessingParams{.test_name = "kMobileNetQuantizedWithMetadata",
+                            .input_model_name = kMobileNetQuantizedWithMetadata,
+                            .keep_aspect_ratio = false,
+                            .expected_type = Tensor::ElementType::kUInt8,
+                            .expected_shape = {1, 224, 224, 3},
+                            .expected_letterbox_padding = {0, 0, 0, 0}},
+        PreprocessingParams{
+            .test_name = "kMobileNetQuantizedWithoutMetadata",
+            .input_model_name = kMobileNetQuantizedWithoutMetadata,
+            .keep_aspect_ratio = false,
+            .expected_type = Tensor::ElementType::kUInt8,
+            .expected_shape = {1, 192, 192, 3},
+            .expected_letterbox_padding = {0, 0, 0, 0}},
+        PreprocessingParams{.test_name = "kMobileNetFloatWithMetadata",
+                            .input_model_name = kMobileNetFloatWithMetadata,
+                            .keep_aspect_ratio = false,
+                            .expected_type = Tensor::ElementType::kFloat32,
+                            .expected_shape = {1, 224, 224, 3},
+                            .expected_letterbox_padding = {0, 0, 0, 0}},
+        PreprocessingParams{
+            .test_name = "kMobileNetFloatWithMetadataKeepAspectRatio",
+            .input_model_name = kMobileNetFloatWithMetadata,
+            .keep_aspect_ratio = true,
+            .expected_type = Tensor::ElementType::kFloat32,
+            .expected_shape = {1, 224, 224, 3},
+            .expected_letterbox_padding = {/*left*/ 0,
+                                           /*top*/ 0.161458,
+                                           /*right*/ 0,
+                                           /*bottom*/ 0.161458}}),
+    [](const TestParamInfo<PreprocessingTest::ParamType>& info) {
+      return info.param.test_name;
+    });
+
+}  // namespace
+}  // namespace processors
+}  // namespace components
+}  // namespace tasks
+}  // namespace mediapipe

mediapipe/tasks/cc/components/processors/proto/BUILD

@@ -49,3 +49,13 @@ mediapipe_proto_library(
         "//mediapipe/tasks/cc/components/calculators:tensors_to_embeddings_calculator_proto",
     ],
 )
+
+mediapipe_proto_library(
+    name = "image_preprocessing_graph_options_proto",
+    srcs = ["image_preprocessing_graph_options.proto"],
+    deps = [
+        "//mediapipe/calculators/tensor:image_to_tensor_calculator_proto",
+        "//mediapipe/framework:calculator_options_proto",
+        "//mediapipe/framework:calculator_proto",
+    ],
+)

mediapipe/tasks/cc/components/processors/proto/image_preprocessing_graph_options.proto

@@ -15,14 +15,14 @@ limitations under the License.
 
 syntax = "proto2";
 
-package mediapipe.tasks.components;
+package mediapipe.tasks.components.processors.proto;
 
 import "mediapipe/calculators/tensor/image_to_tensor_calculator.proto";
 import "mediapipe/framework/calculator.proto";
 
-message ImagePreprocessingOptions {
+message ImagePreprocessingGraphOptions {
   extend mediapipe.CalculatorOptions {
-    optional ImagePreprocessingOptions ext = 456882436;
+    optional ImagePreprocessingGraphOptions ext = 456882436;
   }
 
   // Options for the ImageToTensor calculator encapsulated by the

mediapipe/tasks/cc/vision/gesture_recognizer/BUILD

@@ -37,7 +37,6 @@ cc_library(
         "//mediapipe/framework/formats:landmark_cc_proto",
         "//mediapipe/framework/formats:rect_cc_proto",
         "//mediapipe/tasks/cc:common",
-        "//mediapipe/tasks/cc/components:image_preprocessing",
         "//mediapipe/tasks/cc/components/processors:classifier_options",
         "//mediapipe/tasks/cc/components/processors/proto:classifier_options_cc_proto",
         "//mediapipe/tasks/cc/core:base_options",
@@ -105,10 +104,7 @@ cc_library(
         "//mediapipe/framework/formats:rect_cc_proto",
         "//mediapipe/framework/formats:tensor",
         "//mediapipe/tasks/cc:common",
-        "//mediapipe/tasks/cc/components:image_preprocessing",
         "//mediapipe/tasks/cc/components/processors:classification_postprocessing_graph",
-        "//mediapipe/tasks/cc/components/processors/proto:classification_postprocessing_graph_options_cc_proto",
-        "//mediapipe/tasks/cc/components/processors/proto:classifier_options_cc_proto",
         "//mediapipe/tasks/cc/core:model_asset_bundle_resources",
         "//mediapipe/tasks/cc/core:model_resources",
         "//mediapipe/tasks/cc/core:model_resources_cache",

mediapipe/tasks/cc/vision/gesture_recognizer/gesture_recognizer.cc

@@ -31,7 +31,6 @@ limitations under the License.
 #include "mediapipe/framework/formats/rect.pb.h"
 #include "mediapipe/framework/packet.h"
 #include "mediapipe/tasks/cc/common.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing.h"
 #include "mediapipe/tasks/cc/components/processors/proto/classifier_options.pb.h"
 #include "mediapipe/tasks/cc/core/base_task_api.h"
 #include "mediapipe/tasks/cc/core/model_resources.h"

mediapipe/tasks/cc/vision/gesture_recognizer/hand_gesture_recognizer_graph.cc

@@ -29,8 +29,6 @@ limitations under the License.
 #include "mediapipe/framework/formats/tensor.h"
 #include "mediapipe/tasks/cc/common.h"
 #include "mediapipe/tasks/cc/components/processors/classification_postprocessing_graph.h"
-#include "mediapipe/tasks/cc/components/processors/proto/classification_postprocessing_graph_options.pb.h"
-#include "mediapipe/tasks/cc/components/processors/proto/classifier_options.pb.h"
 #include "mediapipe/tasks/cc/core/model_asset_bundle_resources.h"
 #include "mediapipe/tasks/cc/core/model_resources.h"
 #include "mediapipe/tasks/cc/core/model_resources_cache.h"

mediapipe/tasks/cc/vision/hand_detector/BUILD

@@ -46,7 +46,7 @@ cc_library(
         "//mediapipe/framework/formats:rect_cc_proto",
         "//mediapipe/framework/formats:tensor",
         "//mediapipe/tasks/cc:common",
-        "//mediapipe/tasks/cc/components:image_preprocessing",
+        "//mediapipe/tasks/cc/components/processors:image_preprocessing_graph",
         "//mediapipe/tasks/cc/core:model_resources",
         "//mediapipe/tasks/cc/core:model_task_graph",
         "//mediapipe/tasks/cc/core:utils",

mediapipe/tasks/cc/vision/hand_detector/hand_detector_graph.cc

@@ -35,7 +35,7 @@ limitations under the License.
 #include "mediapipe/framework/formats/rect.pb.h"
 #include "mediapipe/framework/formats/tensor.h"
 #include "mediapipe/tasks/cc/common.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing.h"
+#include "mediapipe/tasks/cc/components/processors/image_preprocessing_graph.h"
 #include "mediapipe/tasks/cc/core/model_resources.h"
 #include "mediapipe/tasks/cc/core/model_task_graph.h"
 #include "mediapipe/tasks/cc/core/proto/inference_subgraph.pb.h"
@@ -226,21 +226,23 @@ class HandDetectorGraph : public core::ModelTaskGraph {
       Source<NormalizedRect> norm_rect_in, Graph& graph) {
     // Add image preprocessing subgraph. The model expects aspect ratio
     // unchanged.
-    auto& preprocessing =
+    auto& preprocessing = graph.AddNode(
-        graph.AddNode("mediapipe.tasks.components.ImagePreprocessingSubgraph");
+        "mediapipe.tasks.components.processors.ImagePreprocessingGraph");
     auto& image_to_tensor_options =
         *preprocessing
-             .GetOptions<tasks::components::ImagePreprocessingOptions>()
+             .GetOptions<components::processors::proto::
+                             ImagePreprocessingGraphOptions>()
              .mutable_image_to_tensor_options();
     image_to_tensor_options.set_keep_aspect_ratio(true);
     image_to_tensor_options.set_border_mode(
         mediapipe::ImageToTensorCalculatorOptions::BORDER_ZERO);
-    bool use_gpu = components::DetermineImagePreprocessingGpuBackend(
+    bool use_gpu =
+        components::processors::DetermineImagePreprocessingGpuBackend(
             subgraph_options.base_options().acceleration());
-    MP_RETURN_IF_ERROR(ConfigureImagePreprocessing(
+    MP_RETURN_IF_ERROR(components::processors::ConfigureImagePreprocessingGraph(
         model_resources, use_gpu,
-        &preprocessing
+        &preprocessing.GetOptions<
-             .GetOptions<tasks::components::ImagePreprocessingOptions>()));
+            components::processors::proto::ImagePreprocessingGraphOptions>()));
     image_in >> preprocessing.In("IMAGE");
     norm_rect_in >> preprocessing.In("NORM_RECT");
     auto preprocessed_tensors = preprocessing.Out("TENSORS");

mediapipe/tasks/cc/vision/hand_landmarker/BUILD

@@ -35,7 +35,6 @@ cc_library(
         "//mediapipe/framework/formats:landmark_cc_proto",
         "//mediapipe/framework/formats:rect_cc_proto",
         "//mediapipe/tasks/cc:common",
-        "//mediapipe/tasks/cc/components:image_preprocessing",
         "//mediapipe/tasks/cc/components/processors:classifier_options",
         "//mediapipe/tasks/cc/components/processors/proto:classifier_options_cc_proto",
         "//mediapipe/tasks/cc/core:base_options",
@@ -89,7 +88,7 @@ cc_library(
         "//mediapipe/modules/hand_landmark/calculators:hand_landmarks_to_rect_calculator",
         "//mediapipe/tasks/cc:common",
         "//mediapipe/tasks/cc/components/utils:gate",
-        "//mediapipe/tasks/cc/components:image_preprocessing",
+        "//mediapipe/tasks/cc/components/processors:image_preprocessing_graph",
         "//mediapipe/tasks/cc/core:model_resources",
         "//mediapipe/tasks/cc/core:model_task_graph",
         "//mediapipe/tasks/cc/core:utils",

mediapipe/tasks/cc/vision/hand_landmarker/hand_landmarker.cc

@@ -22,7 +22,6 @@ limitations under the License.
 #include "mediapipe/framework/formats/landmark.pb.h"
 #include "mediapipe/framework/formats/rect.pb.h"
 #include "mediapipe/tasks/cc/common.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing.h"
 #include "mediapipe/tasks/cc/components/processors/proto/classifier_options.pb.h"
 #include "mediapipe/tasks/cc/core/base_task_api.h"
 #include "mediapipe/tasks/cc/core/model_resources.h"

mediapipe/tasks/cc/vision/hand_landmarker/hand_landmarks_detector_graph.cc

@@ -33,7 +33,7 @@ limitations under the License.
 #include "mediapipe/framework/formats/rect.pb.h"
 #include "mediapipe/framework/formats/tensor.h"
 #include "mediapipe/tasks/cc/common.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing.h"
+#include "mediapipe/tasks/cc/components/processors/image_preprocessing_graph.h"
 #include "mediapipe/tasks/cc/components/utils/gate.h"
 #include "mediapipe/tasks/cc/core/model_resources.h"
 #include "mediapipe/tasks/cc/core/model_task_graph.h"
@@ -281,14 +281,15 @@ class SingleHandLandmarksDetectorGraph : public core::ModelTaskGraph {
       Source<NormalizedRect> hand_rect, Graph& graph) {
     MP_RETURN_IF_ERROR(SanityCheckOptions(subgraph_options));
 
-    auto& preprocessing =
+    auto& preprocessing = graph.AddNode(
-        graph.AddNode("mediapipe.tasks.components.ImagePreprocessingSubgraph");
+        "mediapipe.tasks.components.processors.ImagePreprocessingGraph");
-    bool use_gpu = components::DetermineImagePreprocessingGpuBackend(
+    bool use_gpu =
+        components::processors::DetermineImagePreprocessingGpuBackend(
             subgraph_options.base_options().acceleration());
-    MP_RETURN_IF_ERROR(ConfigureImagePreprocessing(
+    MP_RETURN_IF_ERROR(components::processors::ConfigureImagePreprocessingGraph(
         model_resources, use_gpu,
-        &preprocessing
+        &preprocessing.GetOptions<tasks::components::processors::proto::
-             .GetOptions<tasks::components::ImagePreprocessingOptions>()));
+                                      ImagePreprocessingGraphOptions>()));
     image_in >> preprocessing.In("IMAGE");
     hand_rect >> preprocessing.In("NORM_RECT");
     auto image_size = preprocessing[Output<std::pair<int, int>>("IMAGE_SIZE")];

mediapipe/tasks/cc/vision/image_classifier/BUILD

@@ -59,11 +59,11 @@ cc_library(
         "//mediapipe/framework/api2:port",
         "//mediapipe/framework/formats:image",
         "//mediapipe/framework/formats:rect_cc_proto",
-        "//mediapipe/tasks/cc/components:image_preprocessing",
-        "//mediapipe/tasks/cc/components:image_preprocessing_options_cc_proto",
         "//mediapipe/tasks/cc/components/containers/proto:classifications_cc_proto",
         "//mediapipe/tasks/cc/components/processors:classification_postprocessing_graph",
+        "//mediapipe/tasks/cc/components/processors:image_preprocessing_graph",
         "//mediapipe/tasks/cc/components/processors/proto:classification_postprocessing_graph_options_cc_proto",
+        "//mediapipe/tasks/cc/components/processors/proto:image_preprocessing_graph_options_cc_proto",
         "//mediapipe/tasks/cc/core:model_resources",
         "//mediapipe/tasks/cc/core:model_task_graph",
         "//mediapipe/tasks/cc/vision/image_classifier/proto:image_classifier_graph_options_cc_proto",

mediapipe/tasks/cc/vision/image_classifier/image_classifier_graph.cc

@@ -23,10 +23,10 @@ limitations under the License.
 #include "mediapipe/framework/formats/image.h"
 #include "mediapipe/framework/formats/rect.pb.h"
 #include "mediapipe/tasks/cc/components/containers/proto/classifications.pb.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing_options.pb.h"
 #include "mediapipe/tasks/cc/components/processors/classification_postprocessing_graph.h"
+#include "mediapipe/tasks/cc/components/processors/image_preprocessing_graph.h"
 #include "mediapipe/tasks/cc/components/processors/proto/classification_postprocessing_graph_options.pb.h"
+#include "mediapipe/tasks/cc/components/processors/proto/image_preprocessing_graph_options.pb.h"
 #include "mediapipe/tasks/cc/core/model_resources.h"
 #include "mediapipe/tasks/cc/core/model_task_graph.h"
 #include "mediapipe/tasks/cc/vision/image_classifier/proto/image_classifier_graph_options.pb.h"
@@ -135,14 +135,15 @@ class ImageClassifierGraph : public core::ModelTaskGraph {
       Source<NormalizedRect> norm_rect_in, Graph& graph) {
     // Adds preprocessing calculators and connects them to the graph input image
     // stream.
-    auto& preprocessing =
+    auto& preprocessing = graph.AddNode(
-        graph.AddNode("mediapipe.tasks.components.ImagePreprocessingSubgraph");
+        "mediapipe.tasks.components.processors.ImagePreprocessingGraph");
-    bool use_gpu = components::DetermineImagePreprocessingGpuBackend(
+    bool use_gpu =
+        components::processors::DetermineImagePreprocessingGpuBackend(
             task_options.base_options().acceleration());
-    MP_RETURN_IF_ERROR(ConfigureImagePreprocessing(
+    MP_RETURN_IF_ERROR(components::processors::ConfigureImagePreprocessingGraph(
         model_resources, use_gpu,
-        &preprocessing
+        &preprocessing.GetOptions<tasks::components::processors::proto::
-             .GetOptions<tasks::components::ImagePreprocessingOptions>()));
+                                      ImagePreprocessingGraphOptions>()));
     image_in >> preprocessing.In(kImageTag);
     norm_rect_in >> preprocessing.In(kNormRectTag);
 

mediapipe/tasks/cc/vision/image_embedder/BUILD

@@ -57,12 +57,12 @@ cc_library(
         "//mediapipe/framework/api2:port",
         "//mediapipe/framework/formats:image",
         "//mediapipe/framework/formats:rect_cc_proto",
-        "//mediapipe/tasks/cc/components:image_preprocessing",
-        "//mediapipe/tasks/cc/components:image_preprocessing_options_cc_proto",
         "//mediapipe/tasks/cc/components/calculators:tensors_to_embeddings_calculator",
         "//mediapipe/tasks/cc/components/containers/proto:embeddings_cc_proto",
         "//mediapipe/tasks/cc/components/processors:embedding_postprocessing_graph",
+        "//mediapipe/tasks/cc/components/processors:image_preprocessing_graph",
         "//mediapipe/tasks/cc/components/processors/proto:embedding_postprocessing_graph_options_cc_proto",
+        "//mediapipe/tasks/cc/components/processors/proto:image_preprocessing_graph_options_cc_proto",
         "//mediapipe/tasks/cc/core:model_task_graph",
         "//mediapipe/tasks/cc/vision/image_embedder/proto:image_embedder_graph_options_cc_proto",
         "@com_google_absl//absl/status:statusor",

mediapipe/tasks/cc/vision/image_embedder/image_embedder_graph.cc

@@ -20,10 +20,10 @@ limitations under the License.
 #include "mediapipe/framework/formats/image.h"
 #include "mediapipe/framework/formats/rect.pb.h"
 #include "mediapipe/tasks/cc/components/containers/proto/embeddings.pb.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing_options.pb.h"
 #include "mediapipe/tasks/cc/components/processors/embedding_postprocessing_graph.h"
+#include "mediapipe/tasks/cc/components/processors/image_preprocessing_graph.h"
 #include "mediapipe/tasks/cc/components/processors/proto/embedding_postprocessing_graph_options.pb.h"
+#include "mediapipe/tasks/cc/components/processors/proto/image_preprocessing_graph_options.pb.h"
 #include "mediapipe/tasks/cc/core/model_task_graph.h"
 #include "mediapipe/tasks/cc/vision/image_embedder/proto/image_embedder_graph_options.pb.h"
 
@@ -130,14 +130,15 @@ class ImageEmbedderGraph : public core::ModelTaskGraph {
       Source<NormalizedRect> norm_rect_in, Graph& graph) {
     // Adds preprocessing calculators and connects them to the graph input image
     // stream.
-    auto& preprocessing =
+    auto& preprocessing = graph.AddNode(
-        graph.AddNode("mediapipe.tasks.components.ImagePreprocessingSubgraph");
+        "mediapipe.tasks.components.processors.ImagePreprocessingGraph");
-    bool use_gpu = components::DetermineImagePreprocessingGpuBackend(
+    bool use_gpu =
+        components::processors::DetermineImagePreprocessingGpuBackend(
             task_options.base_options().acceleration());
-    MP_RETURN_IF_ERROR(ConfigureImagePreprocessing(
+    MP_RETURN_IF_ERROR(components::processors::ConfigureImagePreprocessingGraph(
         model_resources, use_gpu,
-        &preprocessing
+        &preprocessing.GetOptions<tasks::components::processors::proto::
-             .GetOptions<tasks::components::ImagePreprocessingOptions>()));
+                                      ImagePreprocessingGraphOptions>()));
     image_in >> preprocessing.In(kImageTag);
     norm_rect_in >> preprocessing.In(kNormRectTag);
 

mediapipe/tasks/cc/vision/image_segmenter/BUILD

@@ -56,10 +56,10 @@ cc_library(
         "//mediapipe/framework/formats:rect_cc_proto",
         "//mediapipe/framework/port:status",
         "//mediapipe/tasks/cc:common",
-        "//mediapipe/tasks/cc/components:image_preprocessing",
-        "//mediapipe/tasks/cc/components:image_preprocessing_options_cc_proto",
         "//mediapipe/tasks/cc/components/calculators/tensor:tensors_to_segmentation_calculator",
         "//mediapipe/tasks/cc/components/calculators/tensor:tensors_to_segmentation_calculator_cc_proto",
+        "//mediapipe/tasks/cc/components/processors:image_preprocessing_graph",
+        "//mediapipe/tasks/cc/components/processors/proto:image_preprocessing_graph_options_cc_proto",
         "//mediapipe/tasks/cc/components/proto:segmenter_options_cc_proto",
         "//mediapipe/tasks/cc/core:model_resources",
         "//mediapipe/tasks/cc/core:model_task_graph",

mediapipe/tasks/cc/vision/image_segmenter/image_segmenter_graph.cc

@@ -27,8 +27,8 @@ limitations under the License.
 #include "mediapipe/framework/port/status_macros.h"
 #include "mediapipe/tasks/cc/common.h"
 #include "mediapipe/tasks/cc/components/calculators/tensor/tensors_to_segmentation_calculator.pb.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing.h"
+#include "mediapipe/tasks/cc/components/processors/image_preprocessing_graph.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing_options.pb.h"
+#include "mediapipe/tasks/cc/components/processors/proto/image_preprocessing_graph_options.pb.h"
 #include "mediapipe/tasks/cc/components/proto/segmenter_options.pb.h"
 #include "mediapipe/tasks/cc/core/model_resources.h"
 #include "mediapipe/tasks/cc/core/model_task_graph.h"
@@ -243,14 +243,15 @@ class ImageSegmenterGraph : public core::ModelTaskGraph {
 
     // Adds preprocessing calculators and connects them to the graph input image
     // stream.
-    auto& preprocessing =
+    auto& preprocessing = graph.AddNode(
-        graph.AddNode("mediapipe.tasks.components.ImagePreprocessingSubgraph");
+        "mediapipe.tasks.components.processors.ImagePreprocessingGraph");
-    bool use_gpu = components::DetermineImagePreprocessingGpuBackend(
+    bool use_gpu =
+        components::processors::DetermineImagePreprocessingGpuBackend(
             task_options.base_options().acceleration());
-    MP_RETURN_IF_ERROR(ConfigureImagePreprocessing(
+    MP_RETURN_IF_ERROR(components::processors::ConfigureImagePreprocessingGraph(
         model_resources, use_gpu,
-        &preprocessing
+        &preprocessing.GetOptions<tasks::components::processors::proto::
-             .GetOptions<tasks::components::ImagePreprocessingOptions>()));
+                                      ImagePreprocessingGraphOptions>()));
     image_in >> preprocessing.In(kImageTag);
     norm_rect_in >> preprocessing.In(kNormRectTag);
 

mediapipe/tasks/cc/vision/object_detector/BUILD

@@ -71,9 +71,9 @@ cc_library(
         "//mediapipe/framework/formats:rect_cc_proto",
         "//mediapipe/framework/formats:tensor",
         "//mediapipe/tasks/cc:common",
-        "//mediapipe/tasks/cc/components:image_preprocessing",
         "//mediapipe/tasks/cc/components/calculators:score_calibration_calculator_cc_proto",
         "//mediapipe/tasks/cc/components/calculators:score_calibration_utils",
+        "//mediapipe/tasks/cc/components/processors:image_preprocessing_graph",
         "//mediapipe/tasks/cc/components/utils:source_or_node_output",
         "//mediapipe/tasks/cc/core:model_resources",
         "//mediapipe/tasks/cc/core:model_task_graph",

mediapipe/tasks/cc/vision/object_detector/object_detector_graph.cc

@@ -33,7 +33,7 @@ limitations under the License.
 #include "mediapipe/tasks/cc/common.h"
 #include "mediapipe/tasks/cc/components/calculators/score_calibration_calculator.pb.h"
 #include "mediapipe/tasks/cc/components/calculators/score_calibration_utils.h"
-#include "mediapipe/tasks/cc/components/image_preprocessing.h"
+#include "mediapipe/tasks/cc/components/processors/image_preprocessing_graph.h"
 #include "mediapipe/tasks/cc/components/utils/source_or_node_output.h"
 #include "mediapipe/tasks/cc/core/model_resources.h"
 #include "mediapipe/tasks/cc/core/model_task_graph.h"
@@ -561,14 +561,15 @@ class ObjectDetectorGraph : public core::ModelTaskGraph {
 
     // Adds preprocessing calculators and connects them to the graph input image
     // stream.
-    auto& preprocessing =
+    auto& preprocessing = graph.AddNode(
-        graph.AddNode("mediapipe.tasks.components.ImagePreprocessingSubgraph");
+        "mediapipe.tasks.components.processors.ImagePreprocessingGraph");
-    bool use_gpu = components::DetermineImagePreprocessingGpuBackend(
+    bool use_gpu =
+        components::processors::DetermineImagePreprocessingGpuBackend(
             task_options.base_options().acceleration());
-    MP_RETURN_IF_ERROR(ConfigureImagePreprocessing(
+    MP_RETURN_IF_ERROR(components::processors::ConfigureImagePreprocessingGraph(
         model_resources, use_gpu,
-        &preprocessing
+        &preprocessing.GetOptions<tasks::components::processors::proto::
-             .GetOptions<tasks::components::ImagePreprocessingOptions>()));
+                                      ImagePreprocessingGraphOptions>()));
     image_in >> preprocessing.In(kImageTag);
     norm_rect_in >> preprocessing.In(kNormRectTag);