Abstract: Because of scientific development especially in computers, the speed of delivered information and saving up stores, it’s due to press stores in a way where it does not cause losing information after division of pressing. Therefore, this study will tackle the way of pressing photos depending of using the concept of block truncation coding whereas we will segment three dimensional splint into blocks. We will use the mathematical intermediate normative deviation. For every block, we make each one consists of two colorful amounts. After that, we will use the binary system to press columns that whose graphics are gathered. The rate of compression is high and the quality of photos when using algorithm after completing this compression with using size of block (4�4) excellent.