> I was trying to test this -- when I found that the Photoshop CS color > picker only has 8-bit *input*. I can only enter values from 0-255 > into the R, G, and B boxes, even for an image in 16-bit mode. > > So I couldn't test whether it saved in a TIFF successfully or not, > because I couldn't enter arbitrary colors in the first place. Something I'm sure you can cope with David: Programmatically create a binary file containing all levels (0 to 65535). Use 2-byte integers per level. You can do this from C, Fortran or, like I did, simply using VBA (free with M$ Excel) Name the file test2.raw Open the file as raw, specify depth as 16-bits and channel count of 1 Make sure header count is 0 Then save the file as test2.raw. Read the contents of the new file bag programmatically: Voila: ... it has changed. Results using PS 5 Source file: PC byte order 0100 0200 0300 0400 0500 0600 ... FAFF FBFF FCFF FDFF FEFF FFFF Result file: 0200 0200 0400 0400 0600 0600 ... F9FF FBFF FBFF FDFF FDFF FFFF Be interested if you reproduce this on a later version of PS ... Bob
