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## Re: [Vxl-users] About RGB Cross-Correlation computation (2)

 Re: [Vxl-users] About RGB Cross-Correlation computation (2) From: vanroose - 2004-10-15 10:53:40 ```> I found a conversion from RGB to Grey for vil, none for vil1 in VXL, so I wanna know whether there exists such a pipe. Use the function vil1_image_as_byte(color_img) to be found in vil1/vil1_image_as.h -- Peter. ```

 [Vxl-users] About RGB Cross-Correlation computation (2) From: Xiaowei Li - 2004-10-15 09:58:31 ```Hi,VXL Users=A3=A1 =09I'm going on with my experiment.;) =09I think when needing to compute RGB image's cross-correlation,= the conversion of the image from RGB to Grey is necessary, and= the approximate cross-correlation score based on this Grey image= is relatively sufficient to use in general cases. Right? =09Is there any solution of transformation between vil1_image and= vil_image_view in VXL? I found a conversion from RGB to Grey= for vil, none for vil1 in VXL, so I wanna know whether there= exists such a pipe ;). =09Thanks. Best Regards, =09=09=09=09 Shawrie Lee(Xiaowei Li) ```
 Re: [Vxl-users] About RGB Cross-Correlation computation (2) From: vanroose - 2004-10-15 10:53:40 ```> I found a conversion from RGB to Grey for vil, none for vil1 in VXL, so I wanna know whether there exists such a pipe. Use the function vil1_image_as_byte(color_img) to be found in vil1/vil1_image_as.h -- Peter. ```