Hi there,
On Mon, Feb 6, 2017, at 11:02, wine lover wrote:
> I am not sure how to perform the crop operation with an angle (the
> cropped one marked with blue) in skimage? In specific, I do not want
> the cropped one go beyond the scope of original image.
How about rotating the image, and then doing a square crop?
Alternatively, you can do it all in one step with an image
transformation. Something like this (untested, read it as pseudocode):
in_coords = np.array(...) # coordinates of rotated square
out_coords = np.array(...) # coordinates of output image
tf = skimage.transform.estimate_transform('euclidian', in_coords,
out_coords)
cropped_image = skimage.transform.warp(image, tf.inverse)
Best regards
Stéfan
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