On 08/04/2011 02:04 AM, Pablo Gustavo Rodriguez wrote:

Hi everybody:
I use Gimp just for personal pursposes like improving the colour of my photos, and I have a question that I couldn´t answer by myself so far. I use to take the same steps with every picture when improving the colour: I go to menu Colors / Levels, press the button Auto, then OK, Save and Close file. I have 200 photos taken in a tour and I´m looking for a way to do this in a batch mode, for all files at once, maybe from command line, but I couldn´t find how in the online user manual. It seems to me that script-fu may be useful but the manual didn´t help me. Is there a way to do waht I want to do?. Can any body tell me which is the function or recommend me a tutorial?.
I run Gimp 2.6 under Windows 7-64 bits Very much thanks in advance.

Some people will likely give a very documented answer for Gimp batch. But

1) there is also an auto-level in ImageMagick convert (www.imagemagick.org) that will likely be both faster and easier to use from the command line:

convert in.jpg --auto-level out.jpg

see http://www.imagemagick.org/script/command-line-options.php#auto-level for more similar options

2) if you have to run this on all/most pictures you take, you should investigate changing the settings on your camera.

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On 08/04/2011 02:04 AM, Pablo Gustavo Rodriguez wrote:

Hi everybody:
I use Gimp just for personal pursposes like improving the colour of my photos, and I have a question that I couldn´t answer by myself so far. I use to take the same steps with every picture when improving the colour: I go to menu Colors / Levels, press the button Auto, then OK, Save and

Davids Batch processor. Gimp Plugin

http://members.ozemail.com.au/~hodsond/dbp.html

In the colour section there is a tick box for auto-levels

On 2011-08-04 at 01:51 Ofnuts said:

convert in.jpg --auto-level out.jpg

I had to replace "--auto-level" by "-auto-level" to do that!

Hi Pablo,

you can use Script-Fu, more specifically 'gimp-levels-stretch':

"This procedure allows intensity levels in the specified drawable to be remapped according to a set of guessed parameters. It is equivalent to clicking the "Auto" button in the Levels tool. This procedure is only valid on RGB color and grayscale images. It will not operate on indexed drawables."

You can access it in Gimp from Filters -> Script-Fu -> Console.

Some time ago, I published a manual about a similar procedure to round-corners. You can consult in:

www.victorsanchez2.com/#GimpScript-FU-1 www.victorsanchez2.com/#GimpScript-FU-2

and ask me if you want.

Here you can get the script directly:

http://www.victorsanchez2.com/fotolibre/round-corners-fotolibre-png.scm

Regards, Víctor.

On 4 August 2011 02:04, Pablo Gustavo Rodriguez wrote:

Hi everybody:
I use Gimp just for personal pursposes like improving the colour of my photos, and I have a question that I couldn´t answer by myself so far. I use to take the same steps with every picture when improving the colour: I go to menu Colors / Levels, press the button Auto, then OK, Save and Close file. I have 200 photos taken in a tour and I´m looking for a way to do this in a batch mode, for all files at once, maybe from command line, but I couldn´t find how in the online user manual. It seems to me that script-fu may be useful but the manual didn´t help me. Is there a way to do waht I want to do?. Can any body tell me which is the function or recommend me a tutorial?.
I run Gimp 2.6 under Windows 7-64 bits Very much thanks in advance.

Pablo

-- ************************************************* Pablo Gustavo Rodriguez
Lic. en Antropología
http://www.analisiscualitativo.com.ar/ *************************************************

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