| | 36 | == Bit allocation == |
| | 37 | |
| | 38 | A compressed image usually contains the following information: |
| | 39 | * The image geometry information (width and height) |
| | 40 | * Optional colour information (palette) |
| | 41 | * Elementary picture elements (encoded as pixels, triangles, vectors...) |
| | 42 | |
| | 43 | Given the amount of compression we are doing, there is little point in compressing images larger than 512×512. This reduces image geometry information to 18 bits, leaving us with 2308 bits to encode the image information. |
| | 44 | |
| | 45 | Whether to use a palette or to encode colour information into the picture elements is undecided yet. We'll cover both options. |
| | 46 | |
| | 47 | == Storing a palette == |
| | 48 | |
| | 49 | ''To do.'' |
| | 50 | |
| | 51 | == Not storing a palette == |
| | 52 | |
| | 53 | ''To do.'' |
