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Compare and Contrast: Lossless and Lossy compression.
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Lossless Compression Lossy Compression
It is a reversible process It is irreversible process
In lossless compression techniques reconstructed image contains no loss of information as exact reconstruction of the original image is possible In lossy compression techniques reconstructed image contains loss of information which in turn produces distortion in the image
Mean Square Error (MSE) is always zero as exact reconstruction of original image is possible MSE is not zero as exact reconstruction of original image is never possible
Compression ratio is low Compression ratio can be very high
Lossless compression technique are Huffman Coding, Arithmetic Coding, DPCM, B2 Coding, CAC Coding and RLE Coding Lossy Compression techniques are IGS Coding, JPEG Coding, DM Coding etc.
It is suitable for Text file compression, medical reports compression. It is suitable for Photograph, Natural scene, satellite image compression.
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