add canny edge detection algorithm and modify sobel_filter (#991)

* add gaussian filter algorithm and lena.jpg

* add img_convolve algorithm and sobel_filter

* add canny edge detection algorithm and modify sobel_filter

* format to avoid the backslashes
This commit is contained in:
Shoujue Xu
2019-07-10 22:41:05 +08:00
committed by John Law
parent add1aef064
commit 34dee749a7
3 changed files with 122 additions and 8 deletions

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