Image Comparison Database / Plugin ?

I want to set up a site/blog where users can compare two images side by side selected from a list of available images.

For example: I’ve got a portrait named “Woman 1” that is in color and another named “Woman 2”–the same image but in black and white. Ideally I’d like the user to be able to select Woman 1 from a drop-down box and compare it side by side to another image (Woman 2) also selected from a drop down box.

Should I use WordPress to attempt this? (I’d like to keep it as part of an ongoing blog)

Anyone aware of any plugins that might work? Any other ideas?

Thanks in advance.