Legacy ImageMagick Discussions Archive

Thanks for all that. (I've got an Intel i5 CPU; I think the 'Cedar' is something to do with my AMD Radeon HD 5450 graphics card.)

Interesting. When I do the command you suggested:

C:\Program Files\ImageMagick-7.0.3-Q16>.\dcraw.exe -6 -T -v -O c:\x.tiff c:\RAW_CANON_EOS_600D.CR2
Loading Canon EOS 600D image from c:\RAW_CANON_EOS_600D.CR2 ...
Platform 0: Advanced Micro Devices, Inc. OpenCL 2.0 AMD-APP (1800.11)
Device 0: Cedar ...

Thanks for your post.

I did a search using 'File Explorer' on C:\ for dcraw and found only the one in ImageMagick. Also I did a 'where' and 'version':

C:\>where dcraw
C:\Program Files\ImageMagick-7.0.3-Q16\dcraw.exe

C:\>"Program Files\ImageMagick-7.0.3-Q16\convert.exe" -version
Version ...

This bug is still present in the latest release (7.0.3-9 Q16 x64 2016-12-05). Most recently, I tested it by trying to open a Canon CR2 raw file and got black.

Has anyone else been able to reproduce it? Or is it just my system.

Sorry. Hey, I noticed that they provide a direct URL -- try this:

https://www.dpreview.com/sample-galleries/2955274204/olympus-om-d-e-m1-mark-ii-iceland-sample-gallery/6876240188

Once there, look for 'RAW' and click on that to download the image.

(I had picked that image 'randomly', downloaded ...

Here's the URL for an ORF raw file from the dpReview sample web site: goo.gl/Egwmoh

You should get a download of a file called PA271446.ORF

When I download it and use 'convert PA271446.ORF abc.jpg', I get abc.jpg as a black file with the same dimensions as the ORF.

Here's the output of 'convert -version':

Version: ImageMagick 7.0.3-5 Q16 x64 2016-10-31 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Visual C++: 180040629
Features: Cipher DPC Modules OpenMP
Delegates ...

I just installed ImageMagick on windows 10, including the 'legacy convert' option. When I open a CR2 or ORF (raw files from Canon or Olympus) in IMdisplay or if I use 'convert' or 'magick convert' at the command line, I get a pure black image (of the dimensions of the input image).

Eg., here's a ...