Added iOS region of interest

mediapipe/tasks/ios/components/containers/BUILD

@@ -66,3 +66,10 @@ objc_library(
     srcs = ["sources/MPPConnection.m"],
     hdrs = ["sources/MPPConnection.h"],
 )
+
+objc_library(
+    name = "MPPRegionOfInterest",
+    srcs = ["sources/MPPRegionOfInterest.m"],
+    hdrs = ["sources/MPPRegionOfInterest.h"],
+    deps = [":MPPDetection"],
+)

mediapipe/tasks/ios/components/containers/sources/MPPRegionOfInterest.h

@@ -0,0 +1,67 @@
+// 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/components/containers/sources/MPPDetection.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/** The Region-Of-Interest (ROI) to interact with in an interactive segmentation inference. */
+/** An instance can contain erither a single normalized point pointing to the object that the user
+ * wants to segment or array of normalized key points that make up scribbles over the object that
+ * the user wants to segment.*/
+NS_SWIFT_NAME(RegionOfInterest)
+@interface MPPRegionOfInterest : NSObject
+
+/** The normalized point pointing to the object that the user wants to segment. `nil if `scribbles`
+ * is not `nil` */
+@property(nonatomic, readonly, nullable) MPPNormalizedKeypoint *keypoint;
+
+/** The array of normalized key points that make up scribbles over the object that the user wants to
+ * segment. `nil if `keypoint` is not `nil` */
+@property(nonatomic, readonly, nullable) NSArray<MPPNormalizedKeypoint *> *scribbles;
+
+/**
+ * Initializes a new `RegionOfInterest` that represents a single normalized point pointing to the
+ * object that the user wants to segment.
+ *
+ * @param normalizedKeypoint The normalized key point pointing to the object that the user wants to
+ * segment.
+ *
+ * @return An instance of `RegionOfInterest` initialized with the given normalized key point
+ * pointing to the object that the user wants to segment.
+ */
+- (instancetype)initWithNormalizedKeyPoint:(MPPNormalizedKeypoint *)normalizedKeypoint
+    NS_DESIGNATED_INITIALIZER;
+
+/**
+ * Initializes a new `RegionOfInterest` that represents scribbles over the object that the user
+ * wants to segment.
+ *
+ * @param scribbles The array of normalized key points that make up scribbles over the object that
+ * the user wants to segment.
+ *
+ * @return An instance of `RegionOfInterest` initialized with the given normalized key points that
+ * make up scribbles over the object that the user wants to segment.
+ */
+- (instancetype)initWitScribbles:(NSArray<MPPNormalizedKeypoint *> *)scribbles
+    NS_DESIGNATED_INITIALIZER;
+
+- (instancetype)init NS_UNAVAILABLE;
+
++ (instancetype)new NS_UNAVAILABLE;
+
+@end
+
+NS_ASSUME_NONNULL_END

mediapipe/tasks/ios/components/containers/sources/MPPRegionOfInterest.m

@@ -0,0 +1,35 @@
+// 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/components/containers/sources/MPPRegionOfInterest.h"
+
+@implementation MPPRegionOfInterest
+
+- (instancetype)initWithNormalizedKeyPoint:(MPPNormalizedKeypoint *)normalizedKeypoint {
+  self = [super init];
+  if (self) {
+    _keypoint = normalizedKeypoint;
+  }
+  return self;
+}
+
+- (instancetype)initWitScribbles:(NSArray<MPPNormalizedKeypoint *> *)scribbles {
+  self = [super init];
+  if (self) {
+    _scribbles = scribbles;
+  }
+  return self;
+}
+
+@end