ImageMagick - automatically adjust image colors in other photo management applications?

Question

Several photo management applications (like Picnic on the flickr website, F-Spot on the gnome desktop) have the ability to “auto-adjust” / “automatically fix” an image that seems to adjust the color of the image, make it a little better.

For example, here is a before:

and after

Is there a way to do this "automatically adjust the colors to look good" on the command line using ImageMagick tools (or other ubuntu / debian open source command line tools). I have several hundred images that look at a bit of garbage, and I want to try putting them through this filter.

Alternatively, what would be the name of such an effect?

Answer 1

What you are looking for will help you adjust the balance of your photos.

If you search for imagemagick auto white balance in any popular search engine, you will get very interesting results that matter. Unfortunately, http://www.imagemagick.org seems to be below.

I myself found a shell script called autowhite and used it

 me@sophie :[...]$ ./autowhite.sh 5498758807_59a80b3c50_m.jpg corrected.jpg 

and the result is quite acceptable:

• Original:
  
• Fixed:
  

There are several options for a script, so if you are not satisfied with the result, you can tweak it a bit.