Hi, I've somehow mess up my products images when I reset their settings under Admin>configuration>Images. I want and have made the following settings.

Product Info - Image Width: 120!
Product Info - Image Height: 100!

but some of my images are currently 100 x 80px. I'm using Tim's Image Manager and I have tried using the search function but to no avail. Can someone pls. advise how can I select the appropriate batch of images and batch convert them? Thanks.