uncompressed-png
Simple python script to convert RGB and RGBA images into uncompressed format and back
Requirements
- Python
numpy,python-opencv,tqdmmodules
.upng format
Header format:
| Byte index | Size in bytes | Type | Name | Dscription |
|---|---|---|---|---|
| 0 | 4 | ASCII string | prefix | Always "UPNG" |
| 4 | 4 | uint32 | height | Height of image |
| 8 | 4 | uint32 | width | Width of image |
| 9 | 1 | byte | channels | Channels count |
| 10 | 1 | byte | separator | Always 0x0 |
All next bytes is colour values, 3 or 4 unsgined bytes color values in RGB or RGBA format without any separator