Legacy ImageMagick Discussions Archive

Thanks for the BeOS patches and problem report. We will apply your patch and investigate the regression test failures.

Post a URL to beach.psd so we can reproduce the problem and offer a solution.

The excessive logging has been removed from recent versions of ImageMagick. Try the latest release, ImageMagick 6.2.6-7, and the problem should go away.

Add the -colors option after the input filename:

• convert F:\sites1\imagemagick\images\DHP0391.jpg -strip -colorspace gray -colors 256 F:\sites1\imagemagick\images\DHP0391_gray_tif.tiff

Belay that order. We suspect that ridera means -colors 256 . However since JPEG is RGB or CMYK it does not support a colormapped image. Instead try this command: convert -crop 10x10 source.jpg -strip -quality 75 slice%d.jpg Tradeoff image quality for image size by adjusting the compression quality u...

We believe the problem you are having has to do with a bug in the TIFF library for Zip compression. Setting the compression to none does not compress the image so it does not exercise the bug. Note this bug only seems to occur on Windows. In general the only restrictions on image size is the amount ...

The correct behavior is always one patch away... ImageMagick 6.2.6-8 Beta properly converts your image with the correct cropbox. 6.2.6-8 will be available tommorrow.

You need to check carefully the config.log file produced by the ImageMagick configure script to determine why ImageMagick failed to validate your PNG library. Perhaps its a permission problem or it could not find the header files.

Type

• idenitfy -list format

Make sure the PNG format has a mode of rw- and it displays the PNG delegate library version number. If not ImageMagick was built without the requisite PNG delegate library which is required to read/write PNG images.

Your command produces a 27K PNG image using ImageMagick 6.2.6 and this command:

• convert page-5.jpg -resize 170 -quality 99 -colors 256 -strip page-5.png

For ImageMagick 5.5.7 you can use +profile "*" instead of -strip.

Chances are the caption method for rendering text will not be improved. Instead we encourage users that want custom text applications to use one of ImageMagick API's that permit you to set all the font attributes or use SVG. We still have alot of work to do to fully implement the SVG text rendering ...

Try the following commands:

• convert logo: 1.jpg
  convert logo: 2.jpg
  convert *.jpg -append -compress none logo.tif

These command work for us and suggest wildcards are working properly. We're using ImageMagick 6.2.6-7.

Resizing your image introduces new colors and promotes the image from colormapped to truecolor. To solve the problem, either use -sample to resize or add -colors 256 to your command line to change the image back to colormapped before writing it.

Post a URL to your image here so we can download it and try to determine if the file is corrupt or if its a bug.

We will investigate but for now use

• animate -display :0 -font 9x15 *.jpg