TIFF file specification

*To*: mathgroup at smc.vnet.net*Subject*: [mg100247] TIFF file specification*From*: beryllium-10 <beryllium10 at gmail.com>*Date*: Fri, 29 May 2009 20:57:39 -0400 (EDT)

Several years ago I wrote a Mathematica 5.0 program to find and extract parts of bitmap tiff images (lines representing the horizon in fisheye photos of the sky). I used to open the bitmap array (i.e. an R x C list, where R is the pixel height of the image and C its pixel width) with the command: Import["imagefile", "TIFF"][[1,1]]; I recently tried to use my program in Mathematica 7.0 and it seems the TIFF format that Mathematica is expecting has changed. I now have to import element [[1]] of the file, not element [[1,1]]. i.e. the new command to extract the array is: Import["imagefile", "TIFF"][[1]]; This is not a big problem, but I cannot find when Wolfram changed the format that Mathematica expects to see for a TIFF file, and whether anything else in the specification changed. Can anyone point me at Mathematica documentation on this change? I want to be sure that nothing else changed (e.g. is Mathematica still reading the array from bottom left to top right of the image, etc). Thanks in advance for any help on this, John Stone Earth & Space Sciences, University of Washington; stone(at)geology. (washington).(edu)