fix: add BGR to RGB conversion

Author: JakubGonera

packages/react-native-executorch/common/rnexecutorch/data_processing/ImageProcessing.cpp

@@ -111,6 +111,7 @@ cv::Mat readImage(const std::string &imageURI) {
     throw std::runtime_error("Read image error: invalid argument");
   }
 
+  cv::cvtColor(image, image, cv::COLOR_BGR2RGB);
   return image;
 }
 

packages/react-native-executorch/common/rnexecutorch/models/classification/Classification.cpp

@@ -44,7 +44,6 @@ Classification::forward(std::string imageSource) {
 
 TensorPtr Classification::preprocess(const std::string &imageSource) {
   cv::Mat image = imageprocessing::readImage(imageSource);
-  cv::cvtColor(image, image, cv::COLOR_BGR2RGB);
   cv::resize(image, image, modelImageSize);
 
   return imageprocessing::getTensorFromMatrix(getInputShape()[0], image);

packages/react-native-executorch/common/rnexecutorch/models/image_segmentation/ImageSegmentation.cpp

@@ -53,7 +53,6 @@ ImageSegmentation::forward(std::string imageSource,
 std::pair<TensorPtr, cv::Size>
 ImageSegmentation::preprocess(const std::string &imageSource) {
   cv::Mat input = imageprocessing::readImage(imageSource);
-  cv::cvtColor(input, input, cv::COLOR_BGR2RGB);
   cv::Size inputSize = input.size();
 
   cv::resize(input, input, modelImageSize);

packages/react-native-executorch/common/rnexecutorch/models/style_transfer/StyleTransfer.cpp

@@ -36,7 +36,6 @@ StyleTransfer::StyleTransfer(const std::string &modelSource,
 std::pair<TensorPtr, cv::Size>
 StyleTransfer::preprocess(const std::string &imageSource) {
   cv::Mat image = imageprocessing::readImage(imageSource);
-  cv::cvtColor(image, image, cv::COLOR_BGR2RGB);
   auto originalSize = image.size();
   cv::resize(image, image, modelImageSize);
 

packages/react-native-executorch/src/modules/BaseNonStaticModule.ts

@@ -1,6 +1,8 @@
 export class BaseNonStaticModule {
   nativeModule: any = null;
   delete() {
-    this.nativeModule.unload();
+    if (this.nativeModule !== null) {
+      this.nativeModule.unload();
+    }
   }
 }