refactor all control processors to support unload and offload

modules/control/proc/edge.py

@@ -34,13 +34,11 @@ class EdgeDetector:
             input_image = kwargs.pop("img")
         if input_image is None:
             raise ValueError("input_image must be defined.")
-
         if not isinstance(input_image, np.ndarray):
             input_image = np.array(input_image, dtype=np.uint8)
             output_type = output_type or "pil"
         else:
             output_type = output_type or "np"
-
         input_image = HWC3(input_image)
         input_image = resize_image(input_image, detect_resolution)
         img_gray = cv2.cvtColor(input_image, cv2.COLOR_BGR2GRAY)
@@ -52,12 +50,9 @@ class EdgeDetector:
             edge_map = np.expand_dims(edge_map, axis=2)
             edge_map = cv2.cvtColor(edge_map, cv2.COLOR_GRAY2BGR).astype(np.uint8)
         edge_map = HWC3(edge_map)
-
         img = resize_image(input_image, image_resolution)
         H, W, _C = img.shape
         edge_map = cv2.resize(edge_map, (W, H), interpolation=cv2.INTER_LINEAR)
-
         if output_type == "pil":
             edge_map = Image.fromarray(edge_map)
-
         return edge_map