Update app.py

app.py

@@ -66,7 +66,7 @@ def extract_persons(image: np.ndarray, bboxes: np.ndarray) -> list[Image.Image]:
         person_image = image[y1:y2, x1:x2]  # Crop the detected person
         person_pil_image = Image.fromarray(person_image).convert('RGB')  # Convert to RGB
         with io.BytesIO() as output:
-            person_pil_image.save(output, format='JPEG')  # Convert to JPEG
+            person_pil_image.save(output, format='PNG')  # Save as PNG
             output.seek(0)  # Move to the start of the BytesIO buffer
             person_pil_image = Image.open(output)  # Reopen to ensure format
             person_images.append(person_pil_image)