Search found 10985 matches

by magick
2019-06-26T16:56:26-07:00
Forum: Developers
Topic: Multi-channel EXR support in command-line
Replies: 2
Views: 51

Re: Multi-channel EXR support in command-line

The arbitrary channel infrastructure is in place in version 7 series of ImageMagick. We've been looking for use cases (and time) to add the finishing touches for fully-functional multi-channel image support. For convenience, we utilize the EXR delegate library ImfInputSetFrameBuffer() which only ret...
by magick
2019-06-23T12:37:46-07:00
Forum: Bugs
Topic: Animate crashes my computer
Replies: 1
Views: 174

Re: Animate crashes my computer

The animate program loads all the frames in memory and likely thrashes your system. You can reduce memory usage by forcing the pixels to disk:

Code: Select all

animate -limit memory 0 -limit map 0 6b48cf22e4c7d62.gif
For your use case, try firefox or ffplay instead.
by magick
2019-06-20T09:50:24-07:00
Forum: Users
Topic: Export Speed with ImageMagick
Replies: 6
Views: 428

Re: Export Speed with ImageMagick

By default, ImageMagick supports HDRI which requires floating-point pixel components. If you build ImageMagick without HDRI support (add --disable-HDRI to your configure script command-line), you get unsigned pixels and will likely result in a substantial speed-up.
by magick
2019-06-19T16:25:17-07:00
Forum: Users
Topic: Tiff tags are missing in newest version
Replies: 3
Views: 276

Re: Tiff tags are missing in newest version

Add -density 300x300 to your command-line, for example, to export the image resolution.
by magick
2019-06-19T09:52:09-07:00
Forum: Bugs
Topic: DICOM file detected incorrectly on versions above 6.9.7
Replies: 11
Views: 669

Re: DICOM file detected incorrectly on versions above 6.9.7

We compared the ImageMagick rendering of your image against what is returned by XMedCon and got similar results suggesting the current ImageMagick rendering is correct and therefore bug free.
by magick
2019-06-16T11:50:32-07:00
Forum: Bugs
Topic: Possible bug bad xmp profile
Replies: 3
Views: 271

Re: Possible bug bad xmp profile

Thanks for the problem report. We can reproduce it and will have a patch to fix it in GIT master branch @ https://github.com/ImageMagick/ImageMagick later today. The patch will be available in the beta releases of ImageMagick @ http://www.imagemagick.org/download/beta/ by sometime tomorrow.
by magick
2019-06-15T14:58:41-07:00
Forum: Bugs
Topic: Possible bug bad xmp profile
Replies: 3
Views: 271

Re: Possible bug bad xmp profile

Unfortunately, we cannot reproduce the problem. Try with the latest Beta release of IMv7 -50. Post the exception so we know which line exports the warning. Also post the output of `convert --version`.
by magick
2019-06-15T14:47:06-07:00
Forum: Bugs
Topic: DICOM file detected incorrectly on versions above 6.9.7
Replies: 11
Views: 669

Re: DICOM file detected incorrectly on versions above 6.9.7

Modern releases of ImageMagick exports unadulterated pixels. If it is proven that the pixels values are not the expected results, we will investigate further.
by magick
2019-06-15T11:30:52-07:00
Forum: Bugs
Topic: DICOM file detected incorrectly on versions above 6.9.7
Replies: 11
Views: 669

Re: DICOM file detected incorrectly on versions above 6.9.7

Try this command:

Code: Select all

convert test.dcm -normalize test.png
The pixels appear to be 12-bit signed pixels but the file meta data says its 16-bits (add -verbose to your command-line to confirm). Normalization expands the 12-bits to the full 16-bit range
by magick
2019-06-09T14:54:52-07:00
Forum: Bugs
Topic: [PATCH] display command does'nt change colorspace to sRGB if needed
Replies: 4
Views: 338

Re: [PATCH] display command does'nt change colorspace to sRGB if needed

ImageMagick has a hands-off philosophy. We assume the user knows what they are doing so we don't touch the image attributes, including the colorspace, without an explicit command-line option.
by magick
2019-06-09T04:11:22-07:00
Forum: Bugs
Topic: [PATCH] display command does'nt change colorspace to sRGB if needed
Replies: 4
Views: 338

Re: [PATCH] display command does'nt change colorspace to sRGB if needed

This is expected behavior. Instead try this command:

Code: Select all

display -colorspace sRGB image.heic
by magick
2019-06-03T17:07:53-07:00
Forum: Developers
Topic: support for raw 16-bit RGB565
Replies: 21
Views: 2929

Re: support for raw 16-bit RGB565

We'll add a 565 coder within a day or two:

Code: Select all

magick -size 800x600 "RGB565:Loading Default.2rawdata" crest.png
by magick
2019-06-02T18:06:16-07:00
Forum: Developers
Topic: support for raw 16-bit RGB565
Replies: 21
Views: 2929

Re: support for raw 16-bit RGB565

Assume 8-bits per pixel, so -depth 8 is required. Even so, with a width of 800 pixels (e.g. -size 800x600), thats 2400 bytes of RGB per scanline. With a file length of 960000, the pixels are consumed after 400 rows, although you are asking for 600-- thus an exception is thrown. How many rows and col...
by magick
2019-06-01T11:29:22-07:00
Forum: Users
Topic: convert output changes with recent update
Replies: 4
Views: 604

Re: convert output changes with recent update

-48 will be released today. Nudge Arch to upgrade or build -48 from source.
by magick
2019-06-01T10:57:35-07:00
Forum: PerlMagick
Topic: Work with object...
Replies: 6
Views: 777

Re: Work with object...

With PerlMagick you can read an image, resize it, and get the pixels all in memory. See https://imagemagick.org/script/perl-magick.php for example PerlMagick scripts.