New Release 0.3.0-rc13

Link: Updated 02/25/2024  windows binaries / source code on GitHub

New quality settings (exp): -l19->-l1,norm, -h1->-h3

02/25/2024: v0.3.0-rc13 version.Better neatness, better precision, still very fast! 

10/09/2018: I have developped NHW Neatness Metrics to measure neatness of images.

          An Image Comparison of NHW and x265     Sample 512x512 test images

                      Here are the 3 test images compressed with this new version 0.1.6:
                                         

Lighthouse1.nhw  30402octet

                                        

Birds5.nhw  44227octet

                                        

Butterflies2.nhw  41871octet

Remark: The entropy coding schemes are not totally optimal for now, I have the fast ideas to improve them, and so we can save 2.5KB per .nhw compressed file in average.

Next steps are: coding the other (lower and higher) quality settings, lower quality setting is rather complex...


Many thanks,
Raphael
nhwcodec@gmail.com