Search found 11156 matches

by magick
2020-02-22T18:24:47-07:00
Forum: Bugs
Topic: Error in image output using compare and a fuzz value
Replies: 8
Views: 144

Re: Error in image output using compare and a fuzz value

Pixels are made up of channels (e.g. red, green, blue). Each image processing algorithm may treat each channel independently or may treat it holistically where all channels are combined. A typical method for combining channels is to convert the red, green, and blue channels to grayscale so instead o...
by magick
2020-02-22T17:36:18-07:00
Forum: Bugs
Topic: Error in image output using compare and a fuzz value
Replies: 8
Views: 144

Re: Error in image output using compare and a fuzz value

Distortion is computed on a channel by channel basis for each pixel. The composite (all) distortion is accounting for differences across all channels. For grayscale, a single channel image, the composite distortion is the same value as the single gray channel since there is only one channel. Its all...
by magick
2020-02-22T16:08:09-07:00
Forum: Bugs
Topic: Error in image output using compare and a fuzz value
Replies: 8
Views: 144

Re: Error in image output using compare and a fuzz value

Convert the image colorspace to gray to get expected results: $ magick compare -verbose -metric ae -fuzz 15% -compose src -highlight-color white \ -lowlight-color black logo.png logo_noise.png -colorspace gray diff_logo.png logo.png PNG 640x480 640x480+0+0 8-bit sRGB 256c 27398B 0.010u 0:00.005 logo...
by magick
2020-02-22T14:20:08-07:00
Forum: Bugs
Topic: HDRI statistics
Replies: 1
Views: 41

Re: HDRI statistics

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 @ https://www.imagemagick.org/download/beta/ by sometime tomorrow.
by magick
2020-02-20T16:37:14-07:00
Forum: Bugs
Topic: possible bug txt: lab output
Replies: 1
Views: 87

Re: possible bug txt: lab output

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 @ https://www.imagemagick.org/download/beta/ by sometime tomorrow.
by magick
2020-02-18T08:08:49-07:00
Forum: Users
Topic: Jaggy results with using maps for perspective transform
Replies: 17
Views: 507

Re: Jaggy results with using maps for perspective transform

Try this command:

Code: Select all

convert -density 400 map_src.svg -resize 25% map_src.png
by magick
2020-02-17T07:54:37-07:00
Forum: Bugs
Topic: 7.0.2-9 - stream does not work for PNG
Replies: 11
Views: 7092

Re: 7.0.2-9 - stream does not work for PNG

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 @ https://www.imagemagick.org/download/beta/ by sometime tomorrow.
by magick
2020-02-13T07:53:26-07:00
Forum: Bugs
Topic: DNG to JPG results in distorted image.
Replies: 7
Views: 367

Re: DNG to JPG results in distorted image.

ImageMagick leverages libraw to read raw camera format image files. It apparently has a bug when reading your image. In the mean-time try http://darktable.org. It returns expected results.
by magick
2020-02-12T06:49:38-07:00
Forum: Developers
Topic: AVIF & HEIF Support
Replies: 3
Views: 2958

Re: AVIF & HEIF Support

ImageMagick should instantly be able to encode/decode the AVIF image format once libheif includes AVIF support. They have a AVIF branch that has recent patches. We don't have an ETA on when it will be available. We are hesitant to write an decoder/encoder against libavif as long as there is some pro...
by magick
2020-02-11T05:20:11-07:00
Forum: Users
Topic: Cache resources exhausted
Replies: 5
Views: 308

Re: Cache resources exhausted

Increase your Disk policy limit. Its currently 1GiB. Your command creates a pixel cache on disk that exceeds this limit and due to the policy restriction throws an exception.
by magick
2020-02-10T05:30:21-07:00
Forum: Bugs
Topic: reading txt:
Replies: 1
Views: 173

Re: reading txt:

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
2020-02-09T15:06:33-07:00
Forum: Users
Topic: Converting grayscale ppm to png or jpg gives only black and white
Replies: 10
Views: 450

Re: Converting grayscale ppm to png or jpg gives only black and white

Try this command:

Code: Select all

$ pnmtojpeg pvar-1.500000.ppm pvar-1.500000.jpg
pnmtojpeg: Red sample value 65535 is greater than maxval (256)
This suggests your image file does not follow the PNM specification. We manually changed the max value from 256 to 65535 and your image now renders properly.
by magick
2020-02-07T16:36:06-07:00
Forum: Users
Topic: magick translate PAM to PNG ignores compression option
Replies: 7
Views: 466

Re: magick translate PAM to PNG ignores compression option

Try this command:

Code: Select all

magick pf-269362.red.sin0.5_1.03.pam  -define png:compression-level=0 -define png:compression-filter=0 -define png:color-type=2 pf-269362.red.sin0.5_1.03.im.png
This command took less than 2 seconds to complete for us for a mocked up 145MB PAM image file.
by magick
2020-02-07T12:39:39-07:00
Forum: Bugs
Topic: possible bug -depth 8 histogram info
Replies: 1
Views: 169

Re: possible bug -depth 8 histogram info

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 @ https://www.imagemagick.org/download/beta/ by sometime tomorrow.