Module 5

  • Lossy and lossless image compression

Module 5-6




block diagram

+----------------+     +-------------------+     +------------------+
|                |     |                   |     |                  |
| Original Image | --> | Degradation       | --> | Noisy Image      |
| f(x, y)        |     | Function (H)      |     | g(x, y)          |
|                |     |                   |     |                  |
+----------------+     +-------------------+     +------------------+
                                                   |
                                                   v
                                            +------------------+
                                            |                  |
                                            | Restoration      |
                                            | Filter (R)       |
                                            |                  |
                                            +------------------+
                                                   |
                                                   v
                                          +------------------+
                                          |                  |
                                          | Restored Image   |
                                          | \(\hat{f}(x, y)\) |
                                          |                  |
                                          +------------------+