diff --git a/mediapipe/tasks/ios/vision/image_segmenter/utils/BUILD b/mediapipe/tasks/ios/vision/image_segmenter/utils/BUILD index 336a4ec0..7630dd7e 100644 --- a/mediapipe/tasks/ios/vision/image_segmenter/utils/BUILD +++ b/mediapipe/tasks/ios/vision/image_segmenter/utils/BUILD @@ -30,3 +30,13 @@ objc_library( ], ) +objc_library( + name = "MPPImageSegmenterResultHelpers", + srcs = ["sources/MPPImageSegmenterResult+Helpers.mm"], + hdrs = ["sources/MPPImageSegmenterResult+Helpers.h"], + deps = [ + "//mediapipe/framework:packet", + "//mediapipe/framework/formats:image", + "//mediapipe/tasks/ios/vision/image_segmenter:MPPImageSegmenterResult", + ], +) diff --git a/mediapipe/tasks/ios/vision/image_segmenter/utils/sources/MPPImageSegmenterResult+Helpers.h b/mediapipe/tasks/ios/vision/image_segmenter/utils/sources/MPPImageSegmenterResult+Helpers.h new file mode 100644 index 00000000..18b2fb98 --- /dev/null +++ b/mediapipe/tasks/ios/vision/image_segmenter/utils/sources/MPPImageSegmenterResult+Helpers.h @@ -0,0 +1,48 @@ +// 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 "mediapipe/tasks/ios/vision/image_segmenter/sources/MPPImageSegmenterResult.h" + +#include "mediapipe/framework/packet.h" + +NS_ASSUME_NONNULL_BEGIN + +@interface MPPImageSegmenterResult (Helpers) + +/** + * Creates an `MPPImageSegmenterResult` from confidence masks, category mask and quality scores + * packets. + * + * If `shouldCopyMaskPacketData` is set to `YES`, the confidence and catergory masks of the newly + * created `MPPImageSegmenterResult` holds references to deep copied pixel data of the output + * respective masks. + * + * @param confidenceMasksPacket A MediaPipe packet wrapping a `std::vector`. + * @param categoryMaskPacket A MediaPipe packet wrapping a ``. + * @param qualityScoresPacket a MediaPipe packet wrapping a `std::vector`. + * @param shouldCopyMaskPacketData A `BOOL` which indicates if the pixel data of the output masks + * must be deep copied to the newly created `MPPImageSegmenterResult`. + * + * @return An `MPPImageSegmenterResult` object that contains the image segmentation results. + */ ++ (MPPImageSegmenterResult *) + imageSegmenterResultWithConfidenceMasksPacket:(const mediapipe::Packet &)confidenceMasksPacket + categoryMaskPacket:(const mediapipe::Packet &)categoryMaskPacket + qualityScoresPacket:(const mediapipe::Packet &)qualityScoresPacket + timestampInMilliseconds:(NSInteger)timestampInMilliseconds + shouldCopyMaskPacketData:(BOOL)shouldCopyMaskPacketData; + +@end + +NS_ASSUME_NONNULL_END diff --git a/mediapipe/tasks/ios/vision/image_segmenter/utils/sources/MPPImageSegmenterResult+Helpers.mm b/mediapipe/tasks/ios/vision/image_segmenter/utils/sources/MPPImageSegmenterResult+Helpers.mm new file mode 100644 index 00000000..d6e3b1be --- /dev/null +++ b/mediapipe/tasks/ios/vision/image_segmenter/utils/sources/MPPImageSegmenterResult+Helpers.mm @@ -0,0 +1,78 @@ +// 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 "mediapipe/tasks/ios/vision/image_segmenter/utils/sources/MPPImageSegmenterResult+Helpers.h" + +#include "mediapipe/framework/formats/image.h" +#include "mediapipe/framework/packet.h" + +namespace { +using ::mediapipe::Image; +using ::mediapipe::ImageFrameSharedPtr; +using ::mediapipe::Packet; +} // namespace + +@implementation MPPImageSegmenterResult (Helpers) + ++ (MPPImageSegmenterResult *) + imageSegmenterResultWithConfidenceMasksPacket:(const Packet &)confidenceMasksPacket + categoryMaskPacket:(const Packet &)categoryMaskPacket + qualityScoresPacket:(const Packet &)qualityScoresPacket + timestampInMilliseconds:(NSInteger)timestampInMilliseconds + shouldCopyMaskPacketData:(BOOL)shouldCopyMaskPacketData { + NSMutableArray *confidenceMasks; + MPPMask *categoryMask; + NSMutableArray *qualityScores; + + if (confidenceMasksPacket.ValidateAsType>().ok()) { + std::vector cppConfidenceMasks = confidenceMasksPacket.Get>(); + confidenceMasks = [NSMutableArray arrayWithCapacity:(NSUInteger)cppConfidenceMasks.size()]; + + for (const auto &confidenceMask : cppConfidenceMasks) { + [confidenceMasks + addObject:[[MPPMask alloc] + initWithFloat32Data:(float *)confidenceMask.GetImageFrameSharedPtr() + .get() + ->PixelData() + width:confidenceMask.width() + height:confidenceMask.height() + shouldCopy:shouldCopyMaskPacketData ? YES : NO]]; + } + } + + if (categoryMaskPacket.ValidateAsType().ok()) { + const Image &cppCategoryMask = confidenceMasksPacket.Get(); + categoryMask = [[MPPMask alloc] + initWithUInt8Data:(UInt8 *)cppCategoryMask.GetImageFrameSharedPtr().get()->PixelData() + width:cppCategoryMask.width() + height:cppCategoryMask.height() + shouldCopy:shouldCopyMaskPacketData ? YES : NO]; + } + + if (qualityScoresPacket.ValidateAsType>().ok()) { + std::vector cppQualityScores = qualityScoresPacket.Get>(); + qualityScores = [NSMutableArray arrayWithCapacity:(NSUInteger)cppQualityScores.size()]; + + for (const auto &qualityScore : cppQualityScores) { + [qualityScores addObject:[NSNumber numberWithFloat:qualityScore]]; + } + } + + return [[MPPImageSegmenterResult alloc] initWithConfidenceMasks:confidenceMasks + categoryMask:categoryMask + qualityScores:qualityScores + timestampInMilliseconds:timestampInMilliseconds]; +} + +@end