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QC 2.1 - Problem with core image kernel



Folks --

I am still in QC 2.1.  Upgrade to leopard in the long future.

My problem is in a core image kernel.  In the process of debugging a simple kernel (  I sample a pixel,  then return it ),  I was changing the values of  the RGBa components,   with the other two ( GB )  turned to Zero.  I had a billboard plugged in.


The incoming signal  is a "data Image".  Pixels vary from 9970 to 0.0034 in value.  ( values courtesy of mat lab and value finder kernel ). The core image kernel involved in a viewer. incoming pixels were to be converted to values in the 0 to 1 range.   I was not getting good results.  So I hard set the GB to 0.0,  and typed in values for red from 0 to 0.9. I got green and blue pixels  which I thought  I could not get.

Are the three pixel values hooked together in some fashion?  I wanna retry this today,  as I am not entirely sure I was working in a "pure spot" in the code.

Any help with this would be appreciated.

Special Thanks to Sabetelli @ Apple   and Sam Kass.   I finally have a convolution kernel of size 19 pixels for a bi lateral filter with 2 gaussians ( distance and value ) with variable mode padding being applied.  Thanks for all your help folks!


--dan
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