OpenCV Python:从图像中检索矩形主区域然后裁剪图像 [英]OpenCV Python: retrieve rectangle main area from image then crop image
如何从 OPENCV python 中的图像中删除背景灰色图纸 [英]How to remove background gray drawings from image in OPENCV python
如何在Python中使用OpenCV裁剪图像的黑色背景? [英]How do I crop the black background of the image using OpenCV in Python?
Python OpenCV:根据内容裁剪图像,并使背景透明 [英]Python OpenCV: Crop image to contents, and make background transparent
如何在opencv-python中以特定背景颜色裁剪图像中的对象? [英]How to crop object in the image on the particular background color in opencv-python?