"I wonder if they have tools or suite of tests "YES! There is a a program for automatically checking for defects in any photographic image!
This program does an amazing array of automatic check points on any image:1. It checks to make sure your image is properly framed.
2. Checks on contrast.
3. Checks color.
4. Checks for noise.
5. Determines if the image is aesthetically pleasing to the eye.
6. Determines if the image is properly focused.
7. Evaluates the image for saleability of any stock website.
8. Automatically spots jpg artifacts.
9. Determines and evaluates proper lighting. (blown highlights and shadows)
10. Evaluates the image for proper key wording and description.
A copy can be obtained here:
http://unnaturalphotos.com/defect_checker.zip
