Is a set of pictures. When we have multiple pictures, images from 2 or more images need to overlap, which is suitable for editing images, or any post card.
Is a set of pictures class When we have multiple images from two or more who want to overlap. Which is suitable for various image editing or post card.
The determinants of layers of the picture. When we picture images from 2 figure up to bring the overlap. Which is suitable to do image editing or post card.