Search found 288 matches

by whugemann
2018-12-25T11:17:00-07:00
Forum: Developers
Topic: IM Example Contributions (How To)
Replies: 8
Views: 38774

Re: IM Example Contributions (How To)

Well, I'm not offering to transfer all pages to a MediaWiki, but I would offer to set up a MediaWiki with a basic structure and transfer my own pages as a start. Doing so, I would rather split up the Windows page into several pages, as all Usage pages are way too long for Web pages, I guess. After t...
by whugemann
2018-12-25T01:41:10-07:00
Forum: Developers
Topic: IM Example Contributions (How To)
Replies: 8
Views: 38774

Re: IM Example Contributions (How To)

What is the future of Anthony's example section of the IM Website? Some years ago, I contributed http://www.imagemagick.org/Usage/windows/ http://www.imagemagick.org/Usage/lens/ to it, providing pure HTML code. I understand that this workflow will not work anymore. I think that especially the Window...
by whugemann
2018-12-18T10:31:23-07:00
Forum: Users
Topic: Excel VBA Clipboard issue
Replies: 10
Views: 6292

Re: Excel VBA Clipboard issue

I've just tested that IM has no problems converting WMF into something else – well at least pure vector WMF. It however doesn't convert WMFs from the clipboard. When you address the clipboard, IM obviously expects a raster image. An msoPicture is a Microsoft Office specific data format that IM canno...
by whugemann
2018-12-17T04:47:03-07:00
Forum: Users
Topic: Excel VBA Clipboard issue
Replies: 10
Views: 6292

Re: Excel VBA Clipboard issue

Your code results in different data formats stored in the clipboard. You can see this within Excel if you choose 'Paste special': Sheets("External Data").Shapes("Pole_Mark").Copy results in several formats beeing copied to the clipboard, the topmost being a raster image. Sheets("External Data").Shap...
by whugemann
2018-12-17T04:23:04-07:00
Forum: Users
Topic: Porting Windows batch files to IM version 7
Replies: 4
Views: 4670

Re: Porting Windows batch files to IM version 7

My own solution is to install both versions: v7 without legacy, and v6. Then "convert" runs v6, and "magick" (not "magick convert") runs v7. Am I right that the ordering in the PATH environment variable matters? After I installed IM7 (without legacy support), identify was no longer functioning, as ...
by whugemann
2018-12-03T03:34:08-07:00
Forum: Digital Image Processing
Topic: Native CLAHE support
Replies: 16
Views: 15800

Re: Native CLAHE support

OK, I have just verified that it is fixed in the current version 7.0.8-15. But I still cannot see any inluence of the clip-limit parameter. In Fiji/ImageJ its influence is quite drastic, the default value beeing 3.0. In ImageMagick, I cannot see any difference, regardless what value I supply for it....
by whugemann
2018-12-03T02:18:13-07:00
Forum: Users
Topic: Porting Windows batch files to IM version 7
Replies: 4
Views: 4670

Re: Porting Windows batch files to IM version 7

My own solution is to install both versions: v7 without legacy, and v6. Then "convert" runs v6, and "magick" (not "magick convert") runs v7.
Well, that sounds like a plan to me. I will take this road too (and report where it has led me ...)
by whugemann
2018-12-01T06:17:23-07:00
Forum: Users
Topic: Porting Windows batch files to IM version 7
Replies: 4
Views: 4670

Porting Windows batch files to IM version 7

Is there anywhere a hands-on approach to what I have to do exactly when migrating my batch files to IM version 7? Do I just have to click the checkboxes for legacy support during installation and may I then expect my batch files to run mostly? I read http://www.imagemagick.org/script/porting.php, bu...
by whugemann
2018-11-29T07:36:37-07:00
Forum: Digital Image Processing
Topic: Native CLAHE support
Replies: 16
Views: 15800

Re: Native CLAHE support

OK, got it. It would help if one would know about the default values and the range for the maximum contrast parameter. Usage: magick in.jpg -clahe 4x3+127+3 out.jpg or, basically: magick in.jpg -clahe 4x out.jpg I think there is a bug in the filter, as it produces diagobal stripes if the tiles are n...
by whugemann
2018-11-29T05:31:52-07:00
Forum: Digital Image Processing
Topic: Native CLAHE support
Replies: 16
Views: 15800

Re: Native CLAHE support

OK, I downloaded ImageMagick-7.0.8-14-Q16-x86-dll.exe and verified that is has a -clahe option. But how do I find out about the parameters it expects? I would expect three parameters: block size, histogram bins, maximum slope and, optional, 'fast or detailed mode', i.e. something along the line of m...
by whugemann
2018-11-29T01:32:00-07:00
Forum: Digital Image Processing
Topic: Native CLAHE support
Replies: 16
Views: 15800

Re: Native CLAHE support

This seems to have been fixed: https://github.com/ImageMagick/ImageMagick/issues/1393 But how do I get in reach of the "latest beta"? I tried https://www.imagemagick.org/download/beta and downloaded https://www.imagemagick.org/download/beta/ImageMagick-6.9.10-15~beta20181127-Q16-HDRI-x86-dll.exe, bu...
by whugemann
2018-11-19T13:15:05-07:00
Forum: Developers
Topic: Native CLAHE support
Replies: 1
Views: 3649

Native CLAHE support

I would like ImageMagick to have native support for CLAHE, as discussed in viewtopic.php?f=22&t=35058. As is said there, the C code seems to be readily available. My present workaround is using ImageJ in batch mode.
by whugemann
2018-11-19T13:10:52-07:00
Forum: Digital Image Processing
Topic: Native CLAHE support
Replies: 16
Views: 15800

Re: Native CLAHE support

As I said, Karel Zuiderveld published the original C code, which is rather concise. Today I found out that ImageJ has a headless mode in which you can run it from the command line just like ImageMagick and use all its features and even macros and plugins. This sounds like a solution to my problem, a...
by whugemann
2018-11-19T07:43:01-07:00
Forum: Digital Image Processing
Topic: Native CLAHE support
Replies: 16
Views: 15800

Native CLAHE support

I have been using Fiji's/ImageJ's built-in CLAHE filter a lot in recent years, and I have always wondered whether ImageMagick could provide a native CLAHE filter. The problem with Fiji is, that you have to apply the filter to each image individually (or write a yourself a script that does so for ima...
by whugemann
2018-09-10T06:38:44-07:00
Forum: Users
Topic: JPEG-turbo and arithmetic coding
Replies: 1
Views: 2184

JPEG-turbo and arithmetic coding

I have just installed my first 7.x version of IM (i.e. with magick.exe) as a precompiled windows binary. How do i found out whether it uses jpeg-turbo and if so, how can I use arithmetic coding? magick -list format yields JPEG* JPEG rw- Joint Photographic Experts Group JFIF format (62) I think that ...