Pixel/Color values in Raster Image

[Ganesh P]

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Hello Everyone,

We are using PHP/Mapscript for our application. I have a question regarding the Raster Image layer (Images with 7 bands). Is there a way to get the Pixel values (for example, R,G,B values) of a point on the raster image according to the selected bands? Any help is greatly appreciated.

Thanks in advance
Ganesh