小白pyqt5入門記

小白踩pyqt5的坑：
1.二值圖（或者灰度圖）轉QImage對象
height, width, dim = frame.shape
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)#轉成RGB
frame = cv2.cvtColor(frame, cv2.COLOR_RGB2GRAY)#轉成灰度圖
h1,frame=cv2.threshold(frame,127,255,cv2.THRESH_BINARY)#轉成二值圖
image = QImage(frame.data, width, height,width*1,QImage.Format_Grayscale8)#二值圖轉成Qimage對象