I am working with Omeka 2.0.1 and I was wondering if there was any way to adjust the thumbnails. Meaning, if I could adjust them to be the whole image except smaller rather than the square thumbnail? I looked at some older posts and since they refer to the previous versions, the suggestions did not seem to work for 2.0.1. I've been working between the Berlin and Seasons themes.
There are two things at work here. First, under Appearance -> Settings, you can adjust the size constraints for the various derivative images as they are being created. To go back and resize images that have already been created, you can use the Derivative Images plugin.
What themes do with the display will be another matter. Most of the themes use the square thumbnail to have a predictable box to style around. To change that, you'd need to change the theme files to use a different derivative, for example in /items/browse.php changing item_image('square_thumbnail') to item_image('fullsize'). Keep in mind, though, that if your files have lots of different ratios, the display could look choppy.
Thank you so much for the information! I downloaded the plugin and changed the 'square_thumbnail' to 'fullsize' under the Berlin theme in the 'items/random-featured.php' and 'items/browse.php' (I could not seem to find any mention of square thumbnail in the 'items/show.php'), and when I tried to use the Derivative Images plugin, it didn't seem to work. All the thumbnails are still displayed as square thumbnails. The Deriviative Images plugin also displayed an error message when I tried to process the files. It says:
RuntimeException
The configured PHP path (/usr/bin/php) does not point to a PHP-CLI binary.
And I'm not sure what that means. Thanks so much for your help!
The PHP path is basically the path on the server to the PHP that runs in the background, instead of displaying web pages. Your server admin or web hosting folks should be able to tell you what the correct path is.
When you have that, open application/config/config.php and fill it in in the line background.php.path = ""