2005.01.21 21:13 "Re: [Tiff] 8 bits per sample", by Frank Warmerdam

I am extracting tif data 8 bits/sample colour pixels. It seems that each pixel contains 8bits of colour information. If I open the tif in Paintshop Pro I can see that it consist of a 256 colour palette.

How do n convert this to a 24 bit RGB value for display?

Frans,

You can use the tiff2rgba command line utiilty which actually writes a 32bit (Red, green, blue, alpha) TIFF file. Use the -n flag if you don't want it emitting alpha values.

Programmatically you an use the TIFFReadRGBAImage() function.

Best regards,

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