| Value | Meaning |
|---|---|
| NoData0 | |
| UncompressedMapped1 | |
| UncompressedTrueColor2 | |
| UncompressedGrayscale3 | |
| RLEMapped9 | RLE in 8 or 16 bit chunks |
| RLETrueColor10 | |
| RLEGrayscale11 | |
| RLE4BitMapped12 | RLE optimized for 4 bit bitmaps. Added by me. Also works with 2 and 1 bit bitmaps Packet layout: bits 0 - 3: index needs to written bits 4 - 7: repeated occurence of indexes + 1 (1-16) |
| RLE1BitMapped13 | RLE optimized for 1 bit bitmaps. Added by me. Packet layout: Every odd numbered byte: n of zeros (0-255) Every even numbered byte: n of ones (0-255) |
| HDRLEMapped32 | Mapped image with Huffman-Delta-RLE compression. I can't find any info on how this works, so I currently just leaving it as a placeholder |
| HDRLEMappedQT33 | Mapped image with Huffman-Delta-RLE compression with 4-pass quadtree-type process. I can't find any info on how this works, so I currently just leaving it as a placeholder |
Defines the type of the image.