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Compare lossless and lossy compression technique

written 7.9 years ago by teamques10 ★ 68k

•   modified 7.9 years ago

Mumbai University > Computer Engineering > Sem 7 > Image Processing

Marks: 10 Marks

Year: May 2016

image processing

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written 7.9 years ago by teamques10 ★ 68k

Lossless Compression	Lossy Compression
1.It is a reversible process	1.It is a irreversible process
2.In Lossless compression techniques reconstructed image contains NO loss of information as exact reconstruction of the original image is possible	2.In Lossy compression techniques reconstructed image contains loss of information which in turn produces distortion in the image
3.Mean Square Error(MSE) is always zero as exact reconstruction of original image is possible	3.Mean Square Error(MSE) is not zero as exact reconstruction of original image is never possible
4.Compression ratio is Low	4.Compression ratio can be very high
5. Lossless Compression Techniques are Huffman Coding. Arithmetic Coding, DPCM, B2 Coding, CAC Coding, RLE Coding.	5.Lossy Compression Techniques are IGS Coding , JPEG Coding, DM Coding etc.
6.It is suitable for Text file compression, medical reports compression.	6.It is suitable for Photograph Natural scene, satellite image compression.

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