Search found 21519 matches

by fmw42
2017-08-21T11:36:37-07:00
Forum: Bugs
Topic: Linux png compression issue
Replies: 18
Views: 305

Re: Linux png compression issue

Your cents result points to the same image as our window link. At least they have the same names. Please fix the links.
by fmw42
2017-08-21T08:46:33-07:00
Forum: Bugs
Topic: Linux png compression issue
Replies: 18
Views: 305

Re: Linux png compression issue

ONE LAST TIME: I think you may need to post your full input jpg and your full two output png IMAGES, so the PNG developer can try to reproduce the problem or some of us can test ourselves. You can upload to some free hosting service that won't change the image, such as dropbox.com and put the URLs h...
by fmw42
2017-08-20T20:28:13-07:00
Forum: Users
Topic: Converting EPS to jpg with jagged edge issue
Replies: 1
Views: 35

Re: Converting EPS to jpg with jagged edge issue

Please refer back to your question a few weeks ago and the bug report and solution for IM 7 at the following links. http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=32469 https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=32497 If you want the background to be transparen...
by fmw42
2017-08-20T11:18:45-07:00
Forum: Bugs
Topic: Linux png compression issue
Replies: 18
Views: 305

Re: Linux png compression issue

I think you may need to post your input jpg and your two output pngs, so the PNG developer can try to reproduce the problem or some of us can test ourselves. You can upload to some free hosting service that won't change the image and put the URLs here. Have you tried running your conversion in comma...
by fmw42
2017-08-18T16:08:27-07:00
Forum: Bugs
Topic: Linux png compression issue
Replies: 18
Views: 305

Re: Linux png compression issue

That may be the latest your server is providing but not the latest version. As I mentioned above I am at

PNG* PNG rw- Portable Network Graphics (libpng 1.6.30)

Perhaps your hosting provider can upgrade the libpng delegate.

Nevertheless, I will leave it in the hands of glennrp, the PNG expert.
by fmw42
2017-08-18T11:57:00-07:00
Forum: Bugs
Topic: convert cannot handle large files from stdin
Replies: 3
Views: 78

Re: convert cannot handle large files from stdin

why are you trying to do that? You can simply put the filename in the convert command. Does that even work? Does it work as cat image.xwd | convert xwd:- tmp.png What are your IM versions and dates of the versions? According to http://fileformats.archiveteam.org/wiki/XWD, there are two version of .x...
by fmw42
2017-08-18T10:24:12-07:00
Forum: IMagick
Topic: Same Code; Different Linux Distros; Different Results
Replies: 2
Views: 75

Re: Same Code; Different Linux Distros; Different Results

Imagemagick uses Ghostscript to read PDF files. Check to see that both systems have the same version of Ghostscript. My current version is gs --version 9.21 I would also suggest that you convert CMYK to sRGB before doing any processing and then if you want the result to be CMYK, do that at the end. ...
by fmw42
2017-08-18T09:45:45-07:00
Forum: Users
Topic: convert & resize & crop & composite : unexpected results
Replies: 4
Views: 112

Re: convert & resize & crop & composite : unexpected results

User snibgo has a good point. I would add that some settings inside parentheses "leak" outside and so your composite commands are probably getting -gravity center. If that is the case, you can fix that by adding -gravity northwest before -geometry on each command. Or perhaps by adding -respect-paren...
by fmw42
2017-08-18T09:34:41-07:00
Forum: Bugs
Topic: Linux png compression issue
Replies: 18
Views: 305

Re: Linux png compression issue

In command line or PHP exec(), use convert -list format and look at the lines for each format image, JPG and PNG and it will tell you the delegate version. For me I get JPG* JPEG rw- Joint Photographic Experts Group JFIF format ( 90 ) PNG* PNG rw- Portable Network Graphics ( libpng 1.6.30 ) Your rep...
by fmw42
2017-08-17T18:05:15-07:00
Forum: Users
Topic: Where are tutorials/orientation for adding strings to image at random locations?
Replies: 1
Views: 53

Re: Where are tutorials/orientation for adding strings to image at random locations?

Basic text to image is at http://www.imagemagick.org/Usage/text/. You can create any color background using -size WxH xc:somecolor. See http://www.imagemagick.org/Usage/canvas/. You can create random number using -format "%[fx:random()]". See http://www.imagemagick.org/script/fx.php and http://www.i...
by fmw42
2017-08-17T16:38:08-07:00
Forum: Users
Topic: Questions mean shift noise removal and color reduction
Replies: 22
Views: 1164

Re: Questions mean shift noise removal and color reduction

snibgo, I reviewed your work and it is extremely thorough. I liked the enhancements that you made to the basic kmeans clustering. 1) Different kinds of means 2) Different initializations for the color to use to start 3) Finding the optimum number of colors Great job and especially making it into a -...
by fmw42
2017-08-17T15:58:36-07:00
Forum: Bugs
Topic: Linux png compression issue
Replies: 18
Views: 305

Re: Linux png compression issue

What are your IM versions exactly with the dates included? What versions of libpng are being used on both systems? What is the input format and are the delegate libraries for the input format the same on both systems and at what version.

What is your exact command line with values not variables?
by fmw42
2017-08-17T15:09:41-07:00
Forum: Users
Topic: Compute the difference between two images but with different dimensions
Replies: 8
Views: 157

Re: Compute the difference between two images but with different dimensions

You can compare two different size images with histogram comparison metrics. See my bash unix script, histcompare, at my link below. With regards to the metrics used in the scripts, which do you recommend will be a better indicator of difference between two images...(a measure of how different they...
by fmw42
2017-08-17T11:26:04-07:00
Forum: Bugs
Topic: possible bug %[hex:] IM 6.9.9.7 and 7.0.6.7
Replies: 1
Views: 64

possible bug %[hex:] IM 6.9.9.7 and 7.0.6.7

The issue is that while this works:

Code: Select all

convert xc:red -depth 8 -format "%[hex:u.p{0,0}]\n" info:
FF0000

This does not:

Code: Select all

convert xc:red -depth 8 -format "%[hex:p{0,0}]\n" info:
000000
by fmw42
2017-08-17T09:58:37-07:00
Forum: Users
Topic: Compute the difference between two images but with different dimensions
Replies: 8
Views: 157

Re: Compute the difference between two images but with different dimensions

You can compare two different size images with histogram comparison metrics. See my bash unix script, histcompare, at my link below.