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January 1995
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1995.01.25 01:34 "Re: Integrating TIFF extension", by Adam Rybicki
On Tue, 24 Jan 1995, Sam Leffler wrote: > 2. YCbCr files cannot be read by scanlines, but reading by strips works > as expected. However, in libtiff there is no way to specify which > particular sample to load if PlanarConfiguration is 2. Or is there? > Tile-based YCbCr files should work, but I have no files in that format. > > If PlanarConfig is 2 (separate planes) then individual samples > are in different strips/tiles; to get a particular sample you > read the appropriate strip/tile. > > Sam Sure, this sounds obvious. However, when I want to load a tile, I specify which tile _and_which_sample_ of that tile to load via TIFFReadTile(). TIFFReadStrip(), however, does not accept the sample number as one of its parameters. So, how do I indicate to libtiff which strip sample to load? Or does it simply concatenate the samples? Adam Rybicki | SimSoft arybicki@netcom.com | Windows/Win32, C/C++ consulting