Image magick presets

[Dichotomy]

-unsharp 1.0x1.0+1.0 or -unsharp 1.0x1.0+0.5

these are settings that makes thumb little bit sharper;

as for brightness/photoshop check, you might want to add one of these settings:
-modulate 100,100,100

-modulate brightness,saturation,hue

100 - do not change original

otherwise the value is %tual

eg, -unsharp 1.0x1.0+1.0 -modulate 120,100,100 would make thumb 20% brighter leaving other parameters intact. when you play with -modulate, you need to specify other parameters.

you can save few presets just in text files with some comments and change in scripts settings user preset to fit content batch

[Dichotomy]

actually another addition for thos of you who want to turn it into photoshop. :)

lot of usefull info found on this page too:

http://studio.imagemagick.org/magick/index.php

[Dennis]

http://www.imagemagick.com/www/utilities.html

browse a little bit down, there you have all the options you can use :)

[Dichotomy]

-normalize -unsharp 0x1+110+0 -modulate 110,100

this one works nice on movie thumbs as they usually are bad quality and smallish on size.

change modulate values as you see fit for each content batch you add. first value is brightness, second is color saturation