Question: Compare lossless and lossy compression technique
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| 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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