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Introduction to Image Compression
Image compression plays a signicant role in the storage and transmission
of image data. In addition to image data, audio data, voice data, animations,
full motion video, and graphics are also sent. This is called multimedia data.
Image and video data occupy a large portion of bandwidth during trans-
mission. Thus, image data need to be compressed without or with small
loss of quality. The major challenge is to develop efcient image compres-
sion algorithms.
1.1 Need for Coding
An image may contain information that is redundant and or irrelevant.
Removal of this data provides image compression. An image may c ...