Add more information to the error code.

modules/core/include/opencv2/core/base.hpp

@@ -79,18 +79,18 @@ enum Code {
     BadImageSize=              -10,  //!< image size is invalid
     BadOffset=                 -11,  //!< offset is invalid
     BadDataPtr=                -12,  //!<
-    BadStep=                   -13,  //!<
+    BadStep=                   -13,  //!< image step is wrong
     BadModelOrChSeq=           -14,  //!<
-    BadNumChannels=            -15,  //!<
+    BadNumChannels=            -15,  //!< bad number of channels
     BadNumChannel1U=           -16,  //!<
-    BadDepth=                  -17,  //!<
+    BadDepth=                  -17,  //!< input image depth is not supported by function
     BadAlphaChannel=           -18,  //!<
     BadOrder=                  -19,  //!<
     BadOrigin=                 -20,  //!<
     BadAlign=                  -21,  //!<
     BadCallBack=               -22,  //!<
     BadTileSize=               -23,  //!<
-    BadCOI=                    -24,  //!<
+    BadCOI=                    -24,  //!< input COI is not supported
     BadROISize=                -25,  //!<
     MaskIsTiled=               -26,  //!<
     StsNullPtr=                -27,  //!< null pointer

modules/core/include/opencv2/core/types_c.h

@@ -130,18 +130,18 @@ enum {
  CV_BadImageSize=              -10,  /**< image size is invalid           */
  CV_BadOffset=                 -11,  /**< offset is invalid               */
  CV_BadDataPtr=                -12,  /**/
- CV_BadStep=                   -13,  /**/
+ CV_BadStep=                   -13,  /**< image step is wrong             */
  CV_BadModelOrChSeq=           -14,  /**/
- CV_BadNumChannels=            -15,  /**/
+ CV_BadNumChannels=            -15,  /**< bad number of channels          */
  CV_BadNumChannel1U=           -16,  /**/
- CV_BadDepth=                  -17,  /**/
+ CV_BadDepth=                  -17,  /**< input image depth is not supported by function */
  CV_BadAlphaChannel=           -18,  /**/
  CV_BadOrder=                  -19,  /**/
  CV_BadOrigin=                 -20,  /**/
  CV_BadAlign=                  -21,  /**/
  CV_BadCallBack=               -22,  /**/
  CV_BadTileSize=               -23,  /**/
- CV_BadCOI=                    -24,  /**/
+ CV_BadCOI=                    -24,  /**< input COI is not supported     */
  CV_BadROISize=                -25,  /**/
  CV_MaskIsTiled=               -26,  /**/
  CV_StsNullPtr=                -27,  /**< null pointer */