Legacy ImageMagick Discussions Archive

We tried your command on our Intel 3ghz Redhat box with ImageMagick 6.2.5-4 and the command completed in 20.88 seconds. Not sure why its taking so long on your box. You might speed things up a bit if you use the Q8 version of ImageMagick. The default is usually Q16 (16 bits-per-pixel).

You need to create a colormap, use MagickQuantizeImage().

You can certainly implement RLE if you want and hopefully contribute the patches back to the ImageMagick distribution. However, you could also post a URL to one or two RLE-compressed DICOM images and we will look into supporting it. We have code for PACKBITs so it should be a simple patch.

Use the convert program with the -crop option to extract a region of an image and save it to another file. Use the -extract option if your input image is in a raw format (e.g. RGB).

The -strip option can be used to strip the EXIF profile.

The problem is that Photoshop ignores the JPEG/JFIF standard and grabs the DPI not from the image header but from an EXIF profile. ImageMagick does the right thing and sets the JFIF/JPEG resolution in the header but does not modify the EXIF profile. Adobe has had a history of ignoring standards and ...

You are right, warnings should not generate a non-zero status. We will fix the problem in the next ImageMagick release.

Either comment out the line that is causing the compile error or upgrade your version of the Freetype library.

ImageMagick has regressions tests which suggest blob support for PDF works. Can you post a code snippet we can try and reproduce the problem. It appears the PDF coders is being called repeatedly.

So far ImageMagick does not not do any color correction to the DNG image. We need to investigate the conversion process more. In the mean-time why not post a URL to your DNG image and the original raw format or in JPEG so we can investigate the problem.

Type identify -debug all -list type It will tell you where its looking for its configuration files. Chances are they are not installed in any well-known locations. See http://magick.imagemagick.org/script/resources.php for a list of configuration files and where you can place them to keep ImageMagic...

Type

• identify -list type

to list all the fonts ImageMagick knows about.

The only other solution is to edit coders/bmp.c to force 8-bit output then recompile/reinstall ImageMagick.

You can force images of 16 colors or less to 8-bit by adding -compress RLE to your command line.

We develop under Linux and the chinese characters can be passed from the command line but under the Windows shell we noticed it could not. We tried it from a chinese.bat script and it produced gibberish. That means you will need a program to convert the chinese characters to unicode/utf-8 before it ...