:wqMerge branch 'master' of https://github.com/ruby-processing/filters4ruby-processing

Author: monkstone

video_filtering/README.md

@@ -1,17 +1,18 @@
 ### Experiment with different edge-detection algorithms
+
+By modifying the filter #defines (this can't be done dynamically so just edit the filter), although I have an idea for using a erb template to make this easier... 
+
+Modify `edge_detect.glsl` directly to use these alternative defines included in the shader.
+
 In the provided example the the `EDGE_FUNC` is
-`define EDGE_FUNC edge`
+`#define EDGE_FUNC edge`
 
 Alternatives are `colorEdge, trueColorEdge`
 
-
 In the provided example the sketch uses a sobel filter algorithm
 
 `#define SOBEL`
 
-Alernatives are `KAYYALI_NESW, KAYYALI_SENW, PREWITT, ROBERTSCROSS, SCHARR`
-
-Modify `edge_detect.glsl` directly to use these alternative algorithms included in the shader.
+Alternatives are `KAYYALI_NESW, KAYYALI_SENW, PREWITT, ROBERTSCROSS, SCHARR`
 
-Other tunable option to experiment is `SCHARR`, that defaults to `1.0` for STEP but if `#define SCHARR` sets step at `0.15`
- 
+Another tunable option to experiment with is `SCHARR`, that defaults to `1.0` for STEP but if `#define SCHARR` sets step at `0.15`