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Morning mist (explored)

I make this image public for getting an impression of the AVIF format (can be opened in the latest IrfanView, Chrome and Firefox): Link to AVIF in Google Drive

 

The AVIF image compression (in the HEIF container) is a very promising format as it provides good image quality in a very small package and is (in comparison to HEIC) free of any licenses. I hope Flickr as well as Google and Microsoft products will soon have full support for this innovation.

 

Besides the high compression efficiency the big advantage over JPEG is that a color depth per channel of 10 and even 12 bit is supported.

 

This sample is generated using the avifenc.exe command line encoder for windows.

I used this parameters:

avifenc.exe --cicp 2/2/1 -r limited -y 444 -j 6 --min 30 --max 40 --minalpha 30 --maxalpha 40 in.png out.avif

 

The result is:

- 6 threads used (for my 6 CPU cores)

- to colorspace YUV444 (422 and 444 is not supported by the Windows AV1 extension)

- 12 bit per channel

 

Link to Windows encoder binary

Alternate (2x as fast in my benchmarks)

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Uploaded on February 27, 2021
Taken on February 9, 2021