You don't need to convert NumPy array to Mat because OpenCV cv2 module can accept NumPy array. The only thing you need to care for is that ... ... <看更多>

preprocessing.image module) after cv2.imread(), as it is already in numpy array. Also: To double check, I displayed images before ... ... <看更多>

read an image img = cv2.imread('images/noguchi02.jpg') # show image format (basically a 3-d array of pixel color info, in BGR format) print(img). ... <看更多>

The other one not so much, because it's doing a matrix transformation (matrix inversion?) to convert it from RGB to BGR (OpenCV uses one colour space, ... ... <看更多>

How do I save a Numpy array of an image? 7. Conver PNG image to JPEG 8. Conver JPEG image to PNG ... ... <看更多>