apply canny edge detection
the method is:
1. apply gaussian filtering
2. apply sobel filtering
3. non-maximum supperssion
4. edge tracking by hysteresis
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
integer, | intent(in) | :: | img(:,:,:) |
Image array has pixel values. |
||
integer, | intent(in) | :: | maximum_value |
The max value of pixel. |
Edge array