Describe the procedure of JPEG image compression techniques.

Subject Computer Graphics and Multimedia
NU Year Set: 4.(d) Marks: 7 Year: 2011


Image compression is the method of data compression on digital images.

The main objective in the image compression is:

  • Store data in an efficient form

  • Transmit data in an efficient form

Image compression can be lossy or lossless.


JPEG stands for Joint photographic experts group. It is the first interanational standard in image compression. It is widely used today. It could be lossy as well as lossless . But the technique we are going to discuss here today is lossy compression technique.

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