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December 2004
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2004.12.10 21:55 "Re: Q: writing tiled TIFFs", by Andrey Kiselev
On Fri, Dec 10, 2004 at 03:52:55PM -0600, Bob Friesenhahn wrote: > > > the problem, it turns out, is that none of the applications i was > > > trying to read the image with handle tiled TIFF correctly. Photoshop > > > can, but not much else. > > > > libtiff itself can read tiled images. TIFFRGBA interface (coded in > > tif_getimage.c file) shows how to work with tiles. Unfortunately it > > is not a trivial code, it covers many variants of bit depths, planar > > configurations, orientations etc. In despite of this it works > > correctly > > The main problem with depending on TIFFRGBA is that one reason for > using tiled images is to handle large images. The TIFFRGBA interface > requires an enormous amount of memory for large images. I'm not suggest to use TIFFRGBAImage, I'm suggest to _read_ it! Andrey -- Andrey V. Kiselev Home phone: +7 812 5970603 ICQ# 26871517