ABSTRACT
We have seen that image files can be very large. It is thus important for reasons both of storage and file transfer to make these file sizes smaller, if possible. In Section 1.9 we touched briefly on the topic of compression; in this section, we investigate some standard compression methods. It will be necessary to distinguish between two different classes of compression methods: lossless compression, where all the information is retained, and lossy compression where some information is lost.
