Image cropping - The dimensions displayed for thumbnails are not correct.

1. Log in to CMS and navigate to images folder
2. Select any image, here I am using products >> 2010 >> 08 >> pre-production-2010-toyota-prius-in-orlando-1_100180469_l.jpg

First Thumbnail (small) crop
1. Click on crop
2. Crop the image to desired place (observe the dimensions in preview and in final thumbnail) refer dimension attachment

Acutal Issue - The final thumbnail is scaled to some specific dimensions which is different from actual.

This issue is same with all the thumbails.

Its actually a bigger problem with "Thumbnail" because it is the one which is displayed in docview listing, where its again scaled to different dimension and the image looks ugly (refer 'thumbnail' attachment)