1.Difference between image checkpoint and bitmap checkpoint?

A.In Bitmap checkpoint, we can compare the exact images, means the source image(in Build1) with the destination image(in build2). So it compare the exact image between both the builds. Here, even we can check the part of images between
source and destination.

where as in Image check point, we can check all the values and properties of an image. Ex. The destination address once we click on the image, image type etc.