Overview of Verifying Bitmaps

A bitmap is a picture of some portion of your application. Verifying a bitmap is usually only useful when the actual appearance of an object needs to be verified to validate application correctness. For example, if you are testing a drawing or CAD/CAM package, a test case might produce an illustration in a drawing region that you want to compare to a baseline. Other possibilities include the verification of fonts, color charts, and certain custom objects.

When comparing bitmaps, keep the following in mind: