drawing = np.zeros(img.shape[:], dtype=np.uint8)
时间: 2023-11-15 22:05:27 浏览: 146
python中numpy.zeros(np.zeros)的使用方法
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This line of code creates a numpy array called 'drawing' with the same shape as the input image (img) and data type 'unsigned integer 8-bit' (dtype=np.uint8). The array is initialized with all values set to zero.
This is commonly used in computer vision and image processing tasks to create a blank canvas where we can draw lines, shapes or other objects on top of the input image. The resulting 'drawing' array can then be overlaid onto the original image to visualize the changes made.
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