Ok, I'm still having issues here. I've done a few updates, so here's the current setup:
Hardware: MacPro 8-core 3,1 -6GB RAM, 2x 2.8GHz Xeon, with OS X 10.6.8 Snow Leopard
Version: ImageMagick 6.8.8-7 Q16 x86_64 2014-02-18 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2014 ImageMagick Studio LLC
Features: DPC OpenMP
Delegates: bzlib x xml zlib
LibTIFF has been updated to 4.0.3
I'm testing target images in Photoshop CS4 and Preview on the Mac
The ultimate goal is to convert 16bit scan files (DPX or TIF) to monochrome TIF, for processing in another application. Per the suggestions in this thread, I'm trying to make PNG files as an intermediate, but it's failing just like it does going direct to TIF.
In the simplest scenario:
...The resulting PNG files cannot be opened, UNLESS the source is 10 bit DPX Monochrome, and then, only in Photoshop - However, the file is no good: all of the image is in the top 1/4 of the frame and is skewed looking. The rest of the frame is black. I've tried with 10 and 16 bit Linear color DPX, and 10 & 16bit Monochrome DPX as source files. In all cases, IM processes the image and outputs png files, but only the files that originated as 10 bit mono result in a file that can be opened, and that file is no good.
Our scanner can also scan to TIF files directly, though they're color, not grayscale, which is what we need. I have scanned to 8 & 16bit Linear, and 16bit Log TIFFs. When I run these through convert using the same command as above (convert sourcefile.tif target.png), I get the following errors, with all of the above TIF formats:
Code: Select all
convert: no decode delegate for this image format `sourcefile.tif' @ error/constitute.c/ReadImage/555.
convert: no images defined `target.png' @ error/convert.c/ConvertImageCommand/3147.
So this leads me to believe there's something else up with my system because others are able to make intermediate PNG files and TIFs from my DPX files, but I am not. Any ideas? Any other info I can provide?