Legacy ImageMagick Discussions Archive

Intelligent trimming in Magick++

Hi,

I’m new to ImageMagick. I need a way to automatically trim images and have a few questions:

-I’ve found a MagickTrimImage function that allows intelligent trimming, is there any Magick++ equivalent (trim() takes no arguments)?
-if not, can I use Magick++ and MagickWand In the same program? (If so, how to compile such a hybrid)?
-is there a way to leave about 5% margin when trimming? (that is, not to trim all the background, but leave a minimum amount, so that it will look more natural)?

Thanks in advance for the answers.

Karol

carllos wrote:is there a way to leave about 5% margin when trimming? (that is, not to trim all the background, but leave a minimum amount, so that it will look more natural)?

Generally you trim, and then re-add a border of the right color.

Generally you trim, and then re-add a border of the right color.

Thanks for the answer, but that doesn't work for me. Usually the background has it's own texture - that's also why I can't use Image.trim(), so I can't just add a monocolor boarder.

Let's say this is a the picture:
http://www.torun.mm.pl/~carllos_pl/im/213011527.jpg

This is what I get with MagickTrimImage (still haven't found aMagick++ equivalent):
http://www.torun.mm.pl/~carllos_pl/im/2 ... r_trim.jpg

And this is what I would want to get:
http://www.torun.mm.pl/~carllos_pl/im/2 ... 20want.jpg

Note: I do not want to lose the background (eg. by flood-filling it).

Karol

Then do the trim but rather than output an image output the results of the trim.
You can then adjust those results and do the crop yourself.
Also see 'blured trim'....
http://www.imagemagick.org/Usage/crop/#trim_blur

Thank you very much this is what I was looking for,

Is there a Magick++ equivalent for this, or is it just accesible by the command line?

You should be able to get that info directly from the trimmed image using 'get attributes'