Merge pull request #4639 from priankakariatyml:ios-image-segmenter-container-utils
PiperOrigin-RevId: 550608973
This commit is contained in:
Copybara-Service
commit
66cceddb5e
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@ -35,3 +35,13 @@ objc_library(
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"//mediapipe/tasks/ios/vision/core:MPPRunningMode",
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],
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)
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objc_library(
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name = "MPPImageSegmenter",
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hdrs = ["sources/MPPImageSegmenterOptions.h"],
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deps = [
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":MPPImageSegmenterOptions",
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":MPPImageSegmenterResult",
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"//mediapipe/tasks/ios/vision/core:MPPImage",
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],
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)
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@ -0,0 +1,217 @@
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// Copyright 2023 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#import <Foundation/Foundation.h>
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#import "mediapipe/tasks/ios/vision/core/sources/MPPImage.h"
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#import "mediapipe/tasks/ios/vision/image_segmenter/sources/MPPImageSegmenterOptions.h"
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#import "mediapipe/tasks/ios/vision/image_segmenter/sources/MPPImageSegmenterResult.h"
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NS_ASSUME_NONNULL_BEGIN
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/**
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* @brief Class that performs segmentation on images.
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*
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* The API expects a TFLite model with mandatory TFLite Model Metadata.
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*/
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NS_SWIFT_NAME(ImageSegmenter)
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@interface MPPImageSegmenter : NSObject
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/**
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* Creates a new instance of `MPPImageSegmenter` from an absolute path to a TensorFlow Lite model
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* file stored locally on the device and the default `MPPImageSegmenterOptions`.
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*
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* @param modelPath An absolute path to a TensorFlow Lite model file stored locally on the device.
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* @param error An optional error parameter populated when there is an error in initializing the
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* image segmenter.
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*
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* @return A new instance of `MPPImageSegmenter` with the given model path. `nil` if there is an
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* error in initializing the image segmenter.
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*/
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- (nullable instancetype)initWithModelPath:(NSString *)modelPath error:(NSError **)error;
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/**
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* Creates a new instance of `MPPImageSegmenter` from the given `MPPImageSegmenterOptions`.
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*
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* @param options The options of type `MPPImageSegmenterOptions` to use for configuring the
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* `MPPImageSegmenter`.
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* @param error An optional error parameter populated when there is an error in initializing the
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* image segmenter.
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*
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* @return A new instance of `MPPImageSegmenter` with the given options. `nil` if there is an error
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* in initializing the image segmenter.
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*/
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- (nullable instancetype)initWithOptions:(MPPImageSegmenterOptions *)options
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error:(NSError **)error NS_DESIGNATED_INITIALIZER;
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/**
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* Performs segmentation on the provided MPPImage using the whole image as region of interest.
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* Rotation will be applied according to the `orientation` property of the provided `MPPImage`. Only
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* use this method when the `MPPImageSegmenter` is created with `MPPRunningModeImage`.
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*
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* This method supports RGBA images. If your `MPPImage` has a source type of
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* `MPPImageSourceTypePixelBuffer` or `MPPImageSourceTypeSampleBuffer`, the underlying pixel buffer
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* must have one of the following pixel format types:
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* 1. kCVPixelFormatType_32BGRA
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* 2. kCVPixelFormatType_32RGBA
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*
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* If your `MPPImage` has a source type of `MPPImageSourceTypeImage` ensure that the color space is
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* RGB with an Alpha channel.
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*
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* @param image The `MPPImage` on which segmentation is to be performed.
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* @param error An optional error parameter populated when there is an error in performing
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* segmentation on the input image.
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*
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* @return An `MPPImageSegmenterResult` that contains the segmented masks.
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*/
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- (nullable MPPImageSegmenterResult *)segmentImage:(MPPImage *)image
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error:(NSError *)error NS_SWIFT_NAME(segment(image:));
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/**
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* Performs segmentation on the provided MPPImage using the whole image as region of interest and
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* invokes the given completion handler block with the response. The method returns synchronously
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* once the completion handler returns.
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*
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* Rotation will be applied according to the `orientation` property of the provided
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* `MPPImage`. Only use this method when the `MPPImageSegmenter` is created with
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* `MPPRunningModeImage`.
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*
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* This method supports RGBA images. If your `MPPImage` has a source type of
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* `MPPImageSourceTypePixelBuffer` or `MPPImageSourceTypeSampleBuffer`, the underlying pixel buffer
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* must have one of the following pixel format types:
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* 1. kCVPixelFormatType_32BGRA
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* 2. kCVPixelFormatType_32RGBA
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*
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* If your `MPPImage` has a source type of `MPPImageSourceTypeImage` ensure that the color space is
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* RGB with an Alpha channel.
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*
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* @param image The `MPPImage` on which segmentation is to be performed.
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* @param completionHandler A block to be invoked with the results of performing segmentation on the
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* image. The block takes two arguments, the optional `MPPImageSegmenterResult` that contains the
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* segmented masks if the segmentation was successful and an optional error populated upon failure.
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* The lifetime of the returned masks is only guaranteed for the duration of the block.
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*/
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- (void)segmentImage:(MPPImage *)image
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withCompletionHandler:((void ^)(MPPImageSegmenterResult *_Nullable result,
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NSError *_Nullable error))completionHandler
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NS_SWIFT_NAME(segment(image:completion:));
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/**
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* Performs segmentation on the provided video frame of type `MPPImage` using the whole image as
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* region of interest.
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*
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* Rotation will be applied according to the `orientation` property of the provided `MPPImage`. Only
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* use this method when the `MPPImageSegmenter` is created with `MPPRunningModeVideo`.
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*
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* This method supports RGBA images. If your `MPPImage` has a source type of
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* `MPPImageSourceTypePixelBuffer` or `MPPImageSourceTypeSampleBuffer`, the underlying pixel buffer
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* must have one of the following pixel format types:
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* 1. kCVPixelFormatType_32BGRA
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* 2. kCVPixelFormatType_32RGBA
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*
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* If your `MPPImage` has a source type of `MPPImageSourceTypeImage` ensure that the color space is
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* RGB with an Alpha channel.
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*
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* @param image The `MPPImage` on which segmentation is to be performed.
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* @param timestampInMilliseconds The video frame's timestamp (in milliseconds). The input
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* timestamps must be monotonically increasing.
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* @param error An optional error parameter populated when there is an error in performing
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* segmentation on the input image.
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*
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* @return An `MPPImageSegmenterResult` that contains a the segmented masks.
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*/
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- (nullable MPPImageSegmenterResult *)segmentVideoFrame:(MPPImage *)image
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timestampInMilliseconds:(NSInteger)timestampInMilliseconds
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error:(NSError **)error
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NS_SWIFT_NAME(segment(videoFrame:timestampInMilliseconds:));
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/**
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* Performs segmentation on the provided video frame of type `MPPImage` using the whole image as
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* region of interest invokes the given completion handler block with the response. The method
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* returns synchronously once the completion handler returns.
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*
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* Rotation will be applied according to the `orientation` property of the provided `MPPImage`. Only
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* use this method when the `MPPImageSegmenter` is created with `MPPRunningModeVideo`.
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*
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* This method supports RGBA images. If your `MPPImage` has a source type of
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* `MPPImageSourceTypePixelBuffer` or `MPPImageSourceTypeSampleBuffer`, the underlying pixel buffer
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* must have one of the following pixel format types:
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* 1. kCVPixelFormatType_32BGRA
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* 2. kCVPixelFormatType_32RGBA
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*
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* If your `MPPImage` has a source type of `MPPImageSourceTypeImage` ensure that the color space is
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* RGB with an Alpha channel.
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*
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* @param image The `MPPImage` on which segmentation is to be performed.
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* @param timestampInMilliseconds The video frame's timestamp (in milliseconds). The input
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* timestamps must be monotonically increasing.
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* @param completionHandler A block to be invoked with the results of performing segmentation on the
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* image. The block takes two arguments, the optional `MPPImageSegmenterResult` that contains the
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* segmented masks if the segmentation was successful and an optional error only populated upon
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* failure. The lifetime of the returned masks is only guaranteed for the duration of the block.
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*/
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- (void)segmentVideoFrame:(MPPImage *)image
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timestampInMilliseconds:(NSInteger)timestampInMilliseconds
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withCompletionHandler:((void ^)(MPPImageSegmenterResult *_Nullable result,
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NSError *_Nullable error))completionHandler
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NS_SWIFT_NAME(segment(videoFrame:timestampInMilliseconds:completion:));
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/**
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* Sends live stream image data of type `MPPImage` to perform segmentation using the whole image as
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* region of interest.
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*
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* Rotation will be applied according to the `orientation` property of the provided `MPPImage`. Only
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* use this method when the `MPPImageSegmenter` is created with`MPPRunningModeLiveStream`.
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*
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* The object which needs to be continuously notified of the available results of image segmentation
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* must confirm to `MPPImageSegmenterLiveStreamDelegate` protocol and implement the
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*`imageSegmenter:didFinishSegmentationWithResult:timestampInMilliseconds:error:` delegate method.
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*
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* It's required to provide a timestamp (in milliseconds) to indicate when the input image is sent
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* to the segmenter. The input timestamps must be monotonically increasing.
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*
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* This method supports RGBA images. If your `MPPImage` has a source type of
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*`MPPImageSourceTypePixelBuffer` or `MPPImageSourceTypeSampleBuffer`, the underlying pixel buffer
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* must have one of the following pixel format types:
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* 1. kCVPixelFormatType_32BGRA
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* 2. kCVPixelFormatType_32RGBA
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*
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* If the input `MPPImage` has a source type of `MPPImageSourceTypeImage` ensure that the color
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* space is RGB with an Alpha channel.
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*
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* If this method is used for classifying live camera frames using `AVFoundation`, ensure that you
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* request `AVCaptureVideoDataOutput` to output frames in `kCMPixelFormat_32RGBA` using its
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* `videoSettings` property.
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*
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* @param image A live stream image data of type `MPPImage` on which segmentation is to be
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* performed.
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* @param timestampInMilliseconds The timestamp (in milliseconds) which indicates when the input
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* image is sent to the segmenter. The input timestamps must be monotonically increasing.
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* @param error An optional error parameter populated when there is an error when sending the input
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* image to the graph.
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*
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* @return `YES` if the image was sent to the task successfully, otherwise `NO`.
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*/
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- (BOOL)segmentAsyncInImage:(MPPImage *)image
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timestampInMilliseconds:(NSInteger)timestampInMilliseconds
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error:(NSError **)error
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NS_SWIFT_NAME(segmentAsync(image:timestampInMilliseconds:));
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- (instancetype)init NS_UNAVAILABLE;
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+ (instancetype)new NS_UNAVAILABLE;
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@end
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NS_ASSUME_NONNULL_END
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