View Single Post
Old 10-14-2019, 03:08 PM   #7
rashkae
Wizard
rashkae ought to be getting tired of karma fortunes by now.rashkae ought to be getting tired of karma fortunes by now.rashkae ought to be getting tired of karma fortunes by now.rashkae ought to be getting tired of karma fortunes by now.rashkae ought to be getting tired of karma fortunes by now.rashkae ought to be getting tired of karma fortunes by now.rashkae ought to be getting tired of karma fortunes by now.rashkae ought to be getting tired of karma fortunes by now.rashkae ought to be getting tired of karma fortunes by now.rashkae ought to be getting tired of karma fortunes by now.rashkae ought to be getting tired of karma fortunes by now.
 
rashkae's Avatar
 
Posts: 1,274
Karma: 5935030
Join Date: Jun 2011
Location: Ontario, Canada
Device: Kobo Aura HD
Quote:
Originally Posted by NiLuJe View Post
@rashkae: That's because the Forma (and other Mk. 7 devices) support hardware dithering, and it's indeed pretty decent (still slightly more obvious than a good 8x8 matrix (or a good error diffusion algo), but, pretty decent, and essentially free, which pretty much trumps any other concerns given how serviceable it is). Nickel's own isn't half-bad, but is hobbled by various legacy reasons, a visible consequence of that being a more obvious pattern.
The strange thing though.. both my Mark 5 H20, (I no longer have, so can't compare with latest firmware) and Mark 6 H20 do a better job of invisibly dithering than the Aura One,, even though they are lower resolution devices... and I would say, they are also both better than the 7th Gen Clara HD... (The Clara HD has this weird effect of creating diagonal bands of different shading on high resolution images, that leaves a faint but visible pattern.)

Last edited by rashkae; 10-14-2019 at 03:20 PM.
rashkae is offline   Reply With Quote