[GitHub] szha commented on a change in pull request #7345: add std_rgba to normalize options

[gi...@git.apache.org]

szha commented on a change in pull request #7345: add std_rgba to normalize options
URL: https://github.com/apache/incubator-mxnet/pull/7345#discussion_r131511628
 
 

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 File path: src/io/image_iter_common.h
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 @@ -217,6 +225,14 @@ struct ImageNormalizeParam :  public dmlc::Parameter<ImageNormalizeParam> {
         .describe("The mean value to be subtracted on the B channel");
     DMLC_DECLARE_FIELD(mean_a).set_default(0.0f)
         .describe("The mean value to be subtracted on the alpha channel");
+    DMLC_DECLARE_FIELD(std_r).set_default(0.0f)
+        .describe("Augmentation Param: Standard deviation on R channel.");
+    DMLC_DECLARE_FIELD(std_g).set_default(0.0f)
+        .describe("Augmentation Param: Standard deviation on G channel.");
+    DMLC_DECLARE_FIELD(std_b).set_default(0.0f)
 
 Review comment:
   division by zero?
 
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