Fix BGR to RGB color conversion for Raspberry Pi camera feed

raspberry_pi/app_streamlit.py

@@ -80,7 +80,9 @@ if interpreter:
             break
 
         # 1. Preprocess
-        img = cv2.resize(frame, (width, height))
+        # Convert BGR (OpenCV) to RGB (Model Expectation)
+        img_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
+        img = cv2.resize(img_rgb, (width, height))
         img = img.astype(np.float32) / 255.0
         input_data = np.expand_dims(img, axis=0)
 

raspberry_pi/realtime_pi.py

@@ -67,8 +67,10 @@ def main():
             break
 
         # 3. Preprocess Frame
+        # Convert BGR (OpenCV) to RGB (Model Expectation)
+        img_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
         # Resize to model input size
-        img = cv2.resize(frame, (width, height))
+        img = cv2.resize(img_rgb, (width, height))
         # Convert to float32 and normalize if necessary (MobileNetV2 usually expects [0, 1] or [-1, 1])
         # Based on training script ImageDataGenerator(rescale=1./255)
         img = img.astype(np.float32) / 255.0