def warp_im(im, M, dshape):
output_im = np.zeros(dshape, dtype=im.dtype)
cv2.warpAffine(im,M[:2],(dshape[1], dshape[0]),dst=output_im,borderMode=cv2.BORDER_TRANSPARENT,flags=cv2.WARP_INVERSE_MAP)
return output_im
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