ref = cv2.threshold(ref, 10, 255, cv2.THRESH_BINARY_INV)[1]
时间: 2024-05-30 18:15:32 浏览: 103
This line of code is using OpenCV library to apply a binary threshold to an input image 'ref'.
The threshold function takes the following parameters:
- Input image 'ref'
- Threshold value '10' - All pixel values below 10 will be set to 0, and all pixel values above 10 will be set to 255.
- Maximum value '255' - This is the value set to pixels that are above the threshold value.
- Thresholding type cv2.THRESH_BINARY_INV - This specifies the type of thresholding to be applied. In this case, cv2.THRESH_BINARY_INV means that the inverse binary thresholding will be applied. This means that all pixel values above the threshold value will be set to 0 and all pixel values below the threshold value will be set to 255.
The [1] at the end of the line of code is indexing the output of the threshold function. The threshold function returns two outputs: the threshold value used and the thresholded image. The [1] is specifying that we want the thresholded image as the output.
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