Search found 1625 matches

by dlemstra
2013-10-28T07:43:10-07:00
Forum: Bugs
Topic: convert darkens an xcf image
Replies: 14
Views: 10484

Re: convert darkens an xcf image

I get an error when I run your command:
convert.exe: invalid argument for option `sparse-color': Invalid number of Arguments @ error/mogrify.c/SparseColorOption/522.
by dlemstra
2013-10-28T06:02:13-07:00
Forum: Bugs
Topic: convert darkens an xcf image
Replies: 14
Views: 10484

Re: convert darkens an xcf image

My mistake I read that the image should be darker. Can you post 'twoGrad2.png' somewhere snibgo?
by dlemstra
2013-10-28T04:23:37-07:00
Forum: Bugs
Topic: convert darkens an xcf image
Replies: 14
Views: 10484

Re: convert darkens an xcf image

It seems that ImageMagick sets the colorspace to sRGB instead of RGB. Not sure if this is a bug. Changing the colorspace to RGB fixes the problem.
by dlemstra
2013-10-27T09:16:12-07:00
Forum: Bugs
Topic: tif output fails for 16-bit data if orig. input file was jpg
Replies: 7
Views: 9305

Re: tif output fails for 16-bit data if orig. input file was

I am working on some changes to fix the problem with the compression. I agree with you that the compression of the source image should not be used in the output image. The default compression that is used normally should be used. We had had the same problem with the quality setting a while back (htt...
by dlemstra
2013-10-26T04:47:31-07:00
Forum: Bugs
Topic: Not responding when Convert Jpg(800Kb) to Tiff
Replies: 11
Views: 11039

Re: Not responding when Convert Jpg(800Kb) to Tiff

The problem probably the amount of pixels in your image. At some point ImageMagick will use your disk to store its pixels and reading/writing that is really slow. Maybe you can switch your application to 64 bit? This will allow you to allocate more memory at once.
by dlemstra
2013-10-25T02:41:58-07:00
Forum: Bugs
Topic: Integer Overflow on Large Tiff Image
Replies: 6
Views: 6446

Re: Integer Overflow on Large Tiff Image

I just tried it with the latest beta of ImageMagick. With Q16 and x64 I am able to create multiple output images. They all have one/two colors, not sure if this is the expected result. I did have to add '-define registry:temporary-path=' because the image is ridiculously large.
by dlemstra
2013-10-24T14:19:50-07:00
Forum: Bugs
Topic: Integer Overflow on Large Tiff Image
Replies: 6
Views: 6446

Re: Integer Overflow on Large Tiff Image

Libtiff checks if a certain value will fit in an int32 and for this image that won't fit. You should use the x64 version of ImageMagick and not the x86 version.
by dlemstra
2013-10-23T08:37:05-07:00
Forum: Bugs
Topic: Warnings should not stop the image conversion
Replies: 4
Views: 5807

Re: Warnings should not stop the image conversion

I can confirm this is a bug in Magick++, it will be fixed in a couple of days.

Edit: I have committed my changes, this will be fixed in the next version of ImageMagick.
by dlemstra
2013-10-23T02:17:32-07:00
Forum: Bugs
Topic: Not responding when Convert Jpg(800Kb) to Tiff
Replies: 11
Views: 11039

Re: Not responding when Convert Jpg(800Kb) to Tiff

Can you please post your IM version and platform?
by dlemstra
2013-10-19T12:26:08-07:00
Forum: Developers
Topic: fast identify for actual bit depth
Replies: 2
Views: 7888

Re: fast identify for actual bit depth

I prefer bit-depth, it will be available in the next release of ImageMagick.

Code: Select all

C:\Test>identify -format "%[bit-depth]" rose:
8
C:\Test>identify -format "%[bit-depth]" rose_t50.png
1
by dlemstra
2013-10-19T08:19:19-07:00
Forum: Developers
Topic: Fast identify for embedded color profile
Replies: 5
Views: 10433

Re: Fast identify for embedded color profile

Thanks for your idea. It has been implemented and you can use it in the next release of ImageMagick:

Code: Select all

C:\Test>identify -format "%[profile:icc]" test.tif
Coated FOGRA27 (ISO 12647-2:2004)

C:\Test>identify -format "%[profiles]" test.tif
8bim,icc,xmp
by dlemstra
2013-10-18T13:28:09-07:00
Forum: Developers
Topic: Fast identify for embedded color profile
Replies: 5
Views: 10433

Re: Fast identify for embedded color profile

I personally prefer Fred's property names: viewtopic.php?f=1&t=24286#p104075.

identify -format "%[profile:icc]\n" someimage (similarly for icm)
and
identify -format "%[profiles]\n" someimage
by dlemstra
2013-10-14T14:31:50-07:00
Forum: Users
Topic: [6.8.7.0 Q16 x64-WIN] Maybe a Bug in Merging .jpg-Files
Replies: 7
Views: 3606

Re: [6.8.7.0 Q16 x64-WIN] Maybe a Bug in Merging .jpg-Files

I just tried to run the following with the latest source of ImageMagick: convert -colorspace CMYK xc: xc: xc: xc: -combine x.jpg And this works without crashing. It is possible that this was fixed because we switched to libjpeg-turbo (twice as fast on some tests I ran). Does the problem also occur w...
by dlemstra
2013-10-11T13:06:44-07:00
Forum: Bugs
Topic: possible bug -separate or transparent IM 6.8.7.0 Q16 Mac OSX
Replies: 8
Views: 6472

Re: possible bug -separate or transparent IM 6.8.7.0 Q16 Mac

I am getting some strange result with my checkout from svn: # this fails: convert 3.jpg -channel g -separate +channel 3tmp1.tiff convert 3tmp1.tiff -fuzz 18% -fill none -draw "matte 0,0 floodfill" 3tmp2.tiff display 3tmp2.tiff convert 3tmp1.tiff -fuzz 18% -fill none -draw "matte 0,0 floodfill" 3tmp2...
by dlemstra
2013-10-11T11:39:35-07:00
Forum: Bugs
Topic: Performance problem
Replies: 11
Views: 5833

Re: Performance problem

Are you sure you build ImageMagick with OpenMP support on your production server? It looks like the resize operation is not using multiple cores.