info_edges (Operator)
Function: Pre-estimate the mask width of the filter used in the sub-edges_image;
info_edges( : : Filter, Mode, Alpha : Size, Coeffs)
Parameter translation (sequence is the same as above):
Enter the filter name,
Input mode ('edge' to extract edges,'smooth' to smooth),
Enter filter parameters (0.2 ≤ Alpha ≤ 50.0),
Output filter width,
Output polynomial coefficients
description:
1. The main parameters of Filter are as follows:
'deriche1', 'lanser1', 'deriche2', 'lanser2', 'shen', 'mshen' and 'canny'.
2. The parameter Mode determines whether the function of the filter is to smooth the image or extract the edge;
3. The Canny filter uses a mask to achieve smoothing, while other filters are implemented recursively;
4. You can use this operator to get the filter width of edges_image before using edges_image