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May 2004

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2004.05.28 20:21 "trouble Reading the tiles I wrote", by James Carroll

2004.05.28 22:02 "Re: trouble Reading the tiles I wrote", by Frank Warmerdam

2004.05.28 20:21 "trouble Reading the tiles I wrote", by James Carroll

Hi,  I'm working with large images, and just created a conversion
program to create some tiled jpeg compressed tiffs.  I can create the
files, and the tiffs seem to be valid enough to be read by viewers like
irfanview.

Now I'm reading the same files into my own viewer, and having some
trouble with the color model.  There doesn't seem to be a ReadTileRGBA
and I'm having trouble converting to my internal RGBRGBRGB... image.

What should look like:
http://neuroinformatica.com:8080/jims/smallGood.jpg
What it does look like:
http://neuroinformatica.com:8080/jims/smallBad.jpg

What's the best way to convert to RGBRGBRGB...  (or BGRBGRBGR...) for
all types of encodings of tiled tiffs?

Thanks,
-Jim