[Gimp-user] How to Apply an operation to ALL OPENED FILE... or how to do it simply?

[saulgoode at flashingtwelve.brickfilms.com]

Quoting David Hodson <hodsond at ozemail.com.au>:

> saulgoode at flashingtwelve.brickfilms.com wrote:
>
>> If you install Dave Hodson's Batch Processor
>> (http://members.ozemail.com.au/~hodsond/dbp.html), the AUTO LEVELS under
>> the "Colours" tab will effectively perform an auto white balance.
>
> Actually, it calls "gimp_levels_stretch", which I think is the function
> under the menu item "Stretch Contrast" (but I'm not sure).

Looking at the source, it appears that "Auto->White Balance" calls  
"gimp_levels_stretch" while "Auto->Stretch Contrast" calls a plug-in  
called "c_astretch".