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iOS音视频底层(二)之AVFoundation高级捕捉(人脸/二维码识别) - 知乎
http://duoduokou.com/ios/64087607605164404485.html WebDisplaying Vision Bounding Boxes accurately. CGRect used in Apples VisionKit or Vision to draw bounding boxes around detected text has normalised coordinates, and it is quite painful to draw those boxes on the same image when it is displayed because the coordinate system is totally different. However, How to Display Vision Bounding Boxes ... church metaverse