Search found 10835 matches

by snibgo
2018-11-16T15:30:48-07:00
Forum: Magick.NET
Topic: writing area on big picture without loading the image into memory
Replies: 1
Views: 9

Re: writing area on big picture without loading the image into memory

What are these huge images? IM can do the job using disk to store the pixel cache. Of course, you need a large disk, many TB. IM can do it without loading the image into memory provided the input is mpc format. But mpc is an internal IM format, so that transfers the problem: converting to and from m...
by snibgo
2018-11-16T13:43:22-07:00
Forum: Digital Image Processing
Topic: 3 Implementations for Adaptive Gamma Correction
Replies: 3
Views: 309

Re: 3 Implementations for Adaptive Gamma Correction

Thank you for the contribution and the references. I've only had a brief look at them, but they seem interesting, and potentially useful. To me, there are two different uses for such techniques: 1. To present an overview of where my photo has detail, and where it doesn't. This is for information, no...
by snibgo
2018-11-16T08:53:07-07:00
Forum: Users
Topic: compare subimage-search returns me different start-coordinates for the found image
Replies: 4
Views: 64

Re: compare subimage-search returns me different start-coordinates for the found image

"-limit" is documented at http://www.imagemagick.org/script/command-line-options.php#limit Multithreading in IM is documented at http://www.imagemagick.org/script/architecture.php#threads See also policy.xml and MAGICK_THREAD_LIMIT in http://www.imagemagick.org/script/resources.php Internally, most ...
by snibgo
2018-11-16T07:16:16-07:00
Forum: Users
Topic: crop image only in height
Replies: 5
Views: 95

Re: crop image only in height

razor74 wrote:Actually I trim the image first and then I do the crop
So I expect you also "+repage" after the trim? Please show the exact command or series of commands you use. Otherwise we can only guess.

Inserting "+write info:" at various stages in your command can help with understanding what is happening.
by snibgo
2018-11-16T06:27:17-07:00
Forum: Users
Topic: Trim in all borders
Replies: 2
Views: 50

Re: Trim in all borders

There is no example, or question.
by snibgo
2018-11-16T06:24:26-07:00
Forum: Developers
Topic: are there any dependencies with linux kernel?
Replies: 2
Views: 54

Re: are there any dependencies with linux kernel?

Are you serious? You installed IM v6.4.0? Why?
by snibgo
2018-11-16T06:23:38-07:00
Forum: Users
Topic: crop image only in height
Replies: 5
Views: 95

Re: crop image only in height

Please tell us the version of IM you are using, and on what platform, and please paste a link to your input file.
by snibgo
2018-11-16T06:22:09-07:00
Forum: Users
Topic: compare subimage-search returns me different start-coordinates for the found image
Replies: 4
Views: 64

Re: compare subimage-search returns me different start-coordinates for the found image

Your posted A_threshold_90.png and A_threshold_90.png are 1040x390, but your subimage whiteLine1293x1pixel.png is 1293x1 which is wider, so a subimage search will fail. I guess you linked to the wrong inputs, or a web hoster has downsized them. In both your searches, IM has found a perfect match. Wh...
by snibgo
2018-11-15T11:04:02-07:00
Forum: Users
Topic: -rotate more than double jpg size
Replies: 1
Views: 43

Re: -rotate more than double jpg size

IM reads the jpeg file, decompressing it. Then it does whatever you want. Then it re-compresses and writes the file.

For your operation, jpegtran (which is more special-purpose than IM) won't decompress and re-compress.
by snibgo
2018-11-15T07:40:58-07:00
Forum: Magick.NET
Topic: Colors are too bright when converting an image from CMYK to sRGB colorspace
Replies: 5
Views: 83

Re: Colors are too bright when converting an image from CMYK to sRGB colorspace

The commands I used were: magick 188-0.tif -profile sRGB.icc x0.tiff magick 188-0.tif -profile USWebCoatedSWOP.icc -profile sRGB.icc x1.tiff The unnecessary conversion to USWebCoatedSWOP shouldn't make a noticeable difference, and doesn't. I don't use Magick.net, and I'm not sure what AddProfile() d...
by snibgo
2018-11-15T06:58:07-07:00
Forum: Magick.NET
Topic: Colors are too bright when converting an image from CMYK to sRGB colorspace
Replies: 5
Views: 83

Re: Colors are too bright when converting an image from CMYK to sRGB colorspace

Your input already has an embedded CMYK profile. Why are you converting it to another? Viewed in Microsoft Photo Viewer, your sRGB jpeg is lighter than your CMYK tiff. It is also smaller, so you have done more to the image than your code shows. Converting at the command line, with or without the ext...
by snibgo
2018-11-14T18:03:32-07:00
Forum: IMagick
Topic: How do I shift the hue of a black png?
Replies: 7
Views: 116

Re: How do I shift the hue of a black png?

I don't know why... $face->colorizeImage('#AA0000', 1.0); ... doesn't work. It seems to comply with the documentation. I suggest you try it with double-quotes, named colours such as red, and so on. I suspect alternatives such as tintImage would give the same problem. Check your software is reasonabl...
by snibgo
2018-11-14T11:15:41-07:00
Forum: Magick.NET
Topic: Parallel work - C#
Replies: 7
Views: 136

Re: Parallel work - C#

Okay, so you haven't installed ImageMagick binaries. Sorry, I can't help further.
by snibgo
2018-11-14T07:38:01-07:00
Forum: Magick.NET
Topic: Parallel work - C#
Replies: 7
Views: 136

Re: Parallel work - C#

In a command window, at the command line, type the command "magick -version".
by snibgo
2018-11-14T05:49:48-07:00
Forum: Magick.NET
Topic: Parallel work - C#
Replies: 7
Views: 136

Re: Parallel work - C#

OpenJP2 has no relevance to multi-threading. If your implementation of IM has OpenMP, it will use multithreading. The command "magick -version" will tell you. If you have multithreading, you can limit how many threads IM uses, eg "-limit thread 3" at the command line. But you can't force it to use a...