Merge pull request #4639 from priankakariatyml:ios-image-segmenter-container-utils

PiperOrigin-RevId: 550608973
This commit is contained in:
Copybara-Service 2023-07-24 10:46:56 -07:00
commit 66cceddb5e
2 changed files with 227 additions and 0 deletions

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@ -35,3 +35,13 @@ objc_library(
"//mediapipe/tasks/ios/vision/core:MPPRunningMode",
],
)
objc_library(
name = "MPPImageSegmenter",
hdrs = ["sources/MPPImageSegmenterOptions.h"],
deps = [
":MPPImageSegmenterOptions",
":MPPImageSegmenterResult",
"//mediapipe/tasks/ios/vision/core:MPPImage",
],
)

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@ -0,0 +1,217 @@
// Copyright 2023 The MediaPipe Authors.
//
// 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.
#import <Foundation/Foundation.h>
#import "mediapipe/tasks/ios/vision/core/sources/MPPImage.h"
#import "mediapipe/tasks/ios/vision/image_segmenter/sources/MPPImageSegmenterOptions.h"
#import "mediapipe/tasks/ios/vision/image_segmenter/sources/MPPImageSegmenterResult.h"
NS_ASSUME_NONNULL_BEGIN
/**
* @brief Class that performs segmentation on images.
*
* The API expects a TFLite model with mandatory TFLite Model Metadata.
*/
NS_SWIFT_NAME(ImageSegmenter)
@interface MPPImageSegmenter : NSObject
/**
* Creates a new instance of `MPPImageSegmenter` from an absolute path to a TensorFlow Lite model
* file stored locally on the device and the default `MPPImageSegmenterOptions`.
*
* @param modelPath An absolute path to a TensorFlow Lite model file stored locally on the device.
* @param error An optional error parameter populated when there is an error in initializing the
* image segmenter.
*
* @return A new instance of `MPPImageSegmenter` with the given model path. `nil` if there is an
* error in initializing the image segmenter.
*/
- (nullable instancetype)initWithModelPath:(NSString *)modelPath error:(NSError **)error;
/**
* Creates a new instance of `MPPImageSegmenter` from the given `MPPImageSegmenterOptions`.
*
* @param options The options of type `MPPImageSegmenterOptions` to use for configuring the
* `MPPImageSegmenter`.
* @param error An optional error parameter populated when there is an error in initializing the
* image segmenter.
*
* @return A new instance of `MPPImageSegmenter` with the given options. `nil` if there is an error
* in initializing the image segmenter.
*/
- (nullable instancetype)initWithOptions:(MPPImageSegmenterOptions *)options
error:(NSError **)error NS_DESIGNATED_INITIALIZER;
/**
* Performs segmentation on the provided MPPImage using the whole image as region of interest.
* Rotation will be applied according to the `orientation` property of the provided `MPPImage`. Only
* use this method when the `MPPImageSegmenter` is created with `MPPRunningModeImage`.
*
* This method supports RGBA images. If your `MPPImage` has a source type of
* `MPPImageSourceTypePixelBuffer` or `MPPImageSourceTypeSampleBuffer`, the underlying pixel buffer
* must have one of the following pixel format types:
* 1. kCVPixelFormatType_32BGRA
* 2. kCVPixelFormatType_32RGBA
*
* If your `MPPImage` has a source type of `MPPImageSourceTypeImage` ensure that the color space is
* RGB with an Alpha channel.
*
* @param image The `MPPImage` on which segmentation is to be performed.
* @param error An optional error parameter populated when there is an error in performing
* segmentation on the input image.
*
* @return An `MPPImageSegmenterResult` that contains the segmented masks.
*/
- (nullable MPPImageSegmenterResult *)segmentImage:(MPPImage *)image
error:(NSError *)error NS_SWIFT_NAME(segment(image:));
/**
* Performs segmentation on the provided MPPImage using the whole image as region of interest and
* invokes the given completion handler block with the response. The method returns synchronously
* once the completion handler returns.
*
* Rotation will be applied according to the `orientation` property of the provided
* `MPPImage`. Only use this method when the `MPPImageSegmenter` is created with
* `MPPRunningModeImage`.
*
* This method supports RGBA images. If your `MPPImage` has a source type of
* `MPPImageSourceTypePixelBuffer` or `MPPImageSourceTypeSampleBuffer`, the underlying pixel buffer
* must have one of the following pixel format types:
* 1. kCVPixelFormatType_32BGRA
* 2. kCVPixelFormatType_32RGBA
*
* If your `MPPImage` has a source type of `MPPImageSourceTypeImage` ensure that the color space is
* RGB with an Alpha channel.
*
* @param image The `MPPImage` on which segmentation is to be performed.
* @param completionHandler A block to be invoked with the results of performing segmentation on the
* image. The block takes two arguments, the optional `MPPImageSegmenterResult` that contains the
* segmented masks if the segmentation was successful and an optional error populated upon failure.
* The lifetime of the returned masks is only guaranteed for the duration of the block.
*/
- (void)segmentImage:(MPPImage *)image
withCompletionHandler:((void ^)(MPPImageSegmenterResult *_Nullable result,
NSError *_Nullable error))completionHandler
NS_SWIFT_NAME(segment(image:completion:));
/**
* Performs segmentation on the provided video frame of type `MPPImage` using the whole image as
* region of interest.
*
* Rotation will be applied according to the `orientation` property of the provided `MPPImage`. Only
* use this method when the `MPPImageSegmenter` is created with `MPPRunningModeVideo`.
*
* This method supports RGBA images. If your `MPPImage` has a source type of
* `MPPImageSourceTypePixelBuffer` or `MPPImageSourceTypeSampleBuffer`, the underlying pixel buffer
* must have one of the following pixel format types:
* 1. kCVPixelFormatType_32BGRA
* 2. kCVPixelFormatType_32RGBA
*
* If your `MPPImage` has a source type of `MPPImageSourceTypeImage` ensure that the color space is
* RGB with an Alpha channel.
*
* @param image The `MPPImage` on which segmentation is to be performed.
* @param timestampInMilliseconds The video frame's timestamp (in milliseconds). The input
* timestamps must be monotonically increasing.
* @param error An optional error parameter populated when there is an error in performing
* segmentation on the input image.
*
* @return An `MPPImageSegmenterResult` that contains a the segmented masks.
*/
- (nullable MPPImageSegmenterResult *)segmentVideoFrame:(MPPImage *)image
timestampInMilliseconds:(NSInteger)timestampInMilliseconds
error:(NSError **)error
NS_SWIFT_NAME(segment(videoFrame:timestampInMilliseconds:));
/**
* Performs segmentation on the provided video frame of type `MPPImage` using the whole image as
* region of interest invokes the given completion handler block with the response. The method
* returns synchronously once the completion handler returns.
*
* Rotation will be applied according to the `orientation` property of the provided `MPPImage`. Only
* use this method when the `MPPImageSegmenter` is created with `MPPRunningModeVideo`.
*
* This method supports RGBA images. If your `MPPImage` has a source type of
* `MPPImageSourceTypePixelBuffer` or `MPPImageSourceTypeSampleBuffer`, the underlying pixel buffer
* must have one of the following pixel format types:
* 1. kCVPixelFormatType_32BGRA
* 2. kCVPixelFormatType_32RGBA
*
* If your `MPPImage` has a source type of `MPPImageSourceTypeImage` ensure that the color space is
* RGB with an Alpha channel.
*
* @param image The `MPPImage` on which segmentation is to be performed.
* @param timestampInMilliseconds The video frame's timestamp (in milliseconds). The input
* timestamps must be monotonically increasing.
* @param completionHandler A block to be invoked with the results of performing segmentation on the
* image. The block takes two arguments, the optional `MPPImageSegmenterResult` that contains the
* segmented masks if the segmentation was successful and an optional error only populated upon
* failure. The lifetime of the returned masks is only guaranteed for the duration of the block.
*/
- (void)segmentVideoFrame:(MPPImage *)image
timestampInMilliseconds:(NSInteger)timestampInMilliseconds
withCompletionHandler:((void ^)(MPPImageSegmenterResult *_Nullable result,
NSError *_Nullable error))completionHandler
NS_SWIFT_NAME(segment(videoFrame:timestampInMilliseconds:completion:));
/**
* Sends live stream image data of type `MPPImage` to perform segmentation using the whole image as
* region of interest.
*
* Rotation will be applied according to the `orientation` property of the provided `MPPImage`. Only
* use this method when the `MPPImageSegmenter` is created with`MPPRunningModeLiveStream`.
*
* The object which needs to be continuously notified of the available results of image segmentation
* must confirm to `MPPImageSegmenterLiveStreamDelegate` protocol and implement the
*`imageSegmenter:didFinishSegmentationWithResult:timestampInMilliseconds:error:` delegate method.
*
* It's required to provide a timestamp (in milliseconds) to indicate when the input image is sent
* to the segmenter. The input timestamps must be monotonically increasing.
*
* This method supports RGBA images. If your `MPPImage` has a source type of
*`MPPImageSourceTypePixelBuffer` or `MPPImageSourceTypeSampleBuffer`, the underlying pixel buffer
* must have one of the following pixel format types:
* 1. kCVPixelFormatType_32BGRA
* 2. kCVPixelFormatType_32RGBA
*
* If the input `MPPImage` has a source type of `MPPImageSourceTypeImage` ensure that the color
* space is RGB with an Alpha channel.
*
* If this method is used for classifying live camera frames using `AVFoundation`, ensure that you
* request `AVCaptureVideoDataOutput` to output frames in `kCMPixelFormat_32RGBA` using its
* `videoSettings` property.
*
* @param image A live stream image data of type `MPPImage` on which segmentation is to be
* performed.
* @param timestampInMilliseconds The timestamp (in milliseconds) which indicates when the input
* image is sent to the segmenter. The input timestamps must be monotonically increasing.
* @param error An optional error parameter populated when there is an error when sending the input
* image to the graph.
*
* @return `YES` if the image was sent to the task successfully, otherwise `NO`.
*/
- (BOOL)segmentAsyncInImage:(MPPImage *)image
timestampInMilliseconds:(NSInteger)timestampInMilliseconds
error:(NSError **)error
NS_SWIFT_NAME(segmentAsync(image:timestampInMilliseconds:));
- (instancetype)init NS_UNAVAILABLE;
+ (instancetype)new NS_UNAVAILABLE;
@end
NS_ASSUME_NONNULL_END