hello,<div><br></div><div>can anyone tell me what "_mask_filter_result" function is doing in edges.py (skimage/filer/edges.py), &nbsp;i am getting error when i am calling sobel edge detector in latest version of scikit-image .</div><div>and why we are using it , i mean in sobel edge detection after applying the convolution , can't we directly return that new matrix.</div><div><br></div><div><br></div><div>Thanks&nbsp;</div><div>Umesh Kumar Sharma</div><div>4th year UG student</div><div>CSE</div><div>IIT kharagpur</div><div><br></div>