Looking for optimized jpeg encoder/compressor

[SvenBent]

I'm about to scan some stuff.
ussual i swear by png because its mostly black/white stuff i scan. and png is manageable size wize after proper preprocessing.

However I am now going to color/photo stuff and need jpeg so im really not wanting to use the 15+ year old jpeg compresson in the software im using and want something that are more Quality focussed.
I am willing to use a good amount of time and CPU power on the jpeg conversion phase 30 min for a file on a ryzen 1700 core would be considere towards the fast end.

Any recommendations to squeeze max quality out of a given bit usage?

system: Windows 7 64 bit

-- edit --
corrected a "not" to "now"

[Shelwien]

https://github.com/google/guetzli ?

[SolidComp]

JPEG Archive is outstanding: https://github.com/danielgtaylor/jpeg-archive

[Jyrki Alakuijala]

https://github.com/google/guetzli ?

My guesswork is that half of guetzli's savings come from color modeling. For black-and-white images encoded with a single channel those savings are not available. It can still pay off, particularly in the high end quality.

[SvenBent]

My guesswork is that half of guetzli's savings come from color modeling. For black-and-white images encoded with a single channel those savings are not available. It can still pay off, particularly in the high end quality.

My bad i mistyped "However I am noT going to color/photo " should have been "However I am now going to color/photo "


Testing Gueztli right. Looks to hit the time frame requirements lol

[SvenBent]

im seeign a unexpected ehaviero with gueztli

quality 99 is smaller than quality 90.
I would assume the pictures with less quality would take less space or am i reversing the quality parameters ?

[Jyrki Alakuijala]

im seeign a unexpected ehaviero with gueztli

quality 99 is smaller than quality 90.
I would assume the pictures with less quality would take less space or am i reversing the quality parameters ?

Post an issue to the GitHub repository with the example data if possible. We will look at it and at minimum come up with a great sounding explanation why it happens.