Legacy ImageMagick Discussions Archive

Use the negate() method to invert an image.

Thanks for the problem report. We fixed this bug in ImageMagick 6.2.6-7 Beta available sometime tommorrow.

Ok, try

• ldd /usr/local/bin/convert

It will confirm its looking for libMagick.so and cannot find it. To fix the problem contact your system administrator or a manual page for help.

You are right, the documentation is unclear about the color reduction operator. The options -colors, -dither, and -treedepth all are settings but they trigger a color reduction operator if an image is available.

You can try

• make -k -i install

In the image class you can use a font filename to identify a particular font file (e.g. arial.ttf) but you can also use font handles. A font handle searches the type.xml configuration file for a matching font. In this file you can set the font style, weight, etc. For example, you will find Helvetica ...

AVI support is not robust but we'll see what we can do. Post a URL so we can download your AVI image and we will investigate further.

All of the ImageMagick delegate libraries are conveniently available here: ftp://ftp.imagemagick.org/pub/ImageMagick/delegates.

The best path forward would be post a working program that illustrates the possible memory leak so that we can run it, reproduce the problem, and offer a solution. We do run a memory leak detector on ImageMagick code but its possible a leak went undetected. Magick++ has the DrawableFont() method ...

The best path forward would be to download the Freetype library and reads its documentation or we suspect there may be a Freetype book by now that would be helpful. All the ImageMagick Freetype related code can be found in the source distribution in the file magick/annotate.c.

Type

• man ldconfig

You need to set your runtime bindings so the ImageMagick programs can find the libMagick dynamic library on your system.

Can you post a URL to your image so we can download it?

The answer to your question lies in the config.log file. Track down where the JPEG delegate library is validated. The validation fails and it will tell you why. Fix the problem and rerun the configure script until the JPEG library is properly validated. At this point you can build and install ...

In earlier versions of ImageMagick, -strip is equvilalent to +profile "*" +comment.

For a high performance needs we recommend drawing directly with the Freetype library and utilizing the font cache API they provide.