Update README.md

unitycoder · web-flow · commit 682dc829609c · 2018-10-03T16:25:46.000+08:00
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 # ConvolutionFilter
 unoptimized convolution filter test in Unity
+
+![image](https://user-images.githubusercontent.com/5438317/46398878-e2a6c680-c728-11e8-8309-bf4db39f1904.png)
+
+
+# References
+http://setosa.io/ev/image-kernels/
