update 更新图片处理，点位比较方法，夹爪控制

Util/util_pic.py

@@ -11,11 +11,13 @@ def cv2_to_qpixmap(cv_img):
     # img = cv_img.copy()
     # cv_img = cv2.cvtColor(cv_img, cv2.COLOR_BGR2RGB)
     try:
-        height, width, channel = cv_img.shape
+        img = cv_img.copy()
+        height, width, channel = img.shape
         bytes_per_line = 3 * width
-        q_img = QImage(cv_img.data, width, height, bytes_per_line, QImage.Format_RGB888)
+        q_img = QImage(img.data, width, height, bytes_per_line, QImage.Format_RGB888)
         return QPixmap.fromImage(q_img)
     except Exception as e:
+        print(e)
         log.log_message(logging.ERROR,e)
         return None