## About Grok

Grok develops open source and commercial JPEG 2000 toolkits.

## Open Source

Grok makes an open, fast and rock-solid JPEG 2000 toolkit.

Fork us on Github.

Fork on Github

## Commercial Encoder

### Input

single-frame TIFF images 8,10,12 and 16 bit precision 2K, 4K resolution lossy, DCI, visually lossless, mathematically lossless Greyscale, RGB, XYZ colour formats

### Output

single-frame JPEG 2000 images

### Recommended hardware

AMD Ryzen 1700X 8-core CPU AMD Radeon RX-570 graphics card Windows 10 64 bit

### Performance

(actual speed depends on image content) 2K lossless compression of 12 bit, RGB, 4:4:4 TIFF images : 60 FPS 2K@24 DCI compression of 12 bit, RGB, 4:4:4 TIFF images : 50 FPS 4K@24 DCI compression of 12 bit, RGB, 4:4:4 TIFF images: 12 FPS

## Contact Grok

grokimagecompression@protonmail.com

- Github