Problem with convert Tiff file

[EmilF]

Then I convert this Tiff file to jpg (or png, gif etc) They become almost totally black. (I have aboute 50 images with this problem).
I use version: ImageMagick-6.5.4-10-Q8-windows-static.exe

Code: Select all

C:\Program Files\ImageMagick-6.5.4-Q8>convert cow.tif cow.jpg
convert: cow.tif: unknown field with tag 37724 (0x935c) encountered. `TIFFReadDirectory' @ tiff.c/TIFFWarnings/546.
convert: Compression algorithm does not support random access. `cow.tif' @ tiff.c/TIFFErrors/336.

Example file (17 Mbyte):
http://www.optimaker.com/optimaker/inte ... cs/cow.tif

[Heiler81]

Are there any channels in that tif. If yes try -flatten

[EmilF]

The only channels are the RGB colors.
It didnt work with -flatten.
If I use -strip I can eliminate the warning message but output jpg will still be "black".

[magick]

We can reproduce the problem you posted and have a patch. Look for it in the Subversion trunk by tomorrow and in the next point release. Thanks.