Register Guidelines E-Books Today's Posts Search

Go Back   MobileRead Forums > E-Book Formats > PDF

Notices

Reply
 
Thread Tools Search this Thread
Old 12-09-2020, 08:53 AM   #46
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 73,970
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
Kindle Papwerwhite 7th generation (PW3) - Firmware 5.13.3 - Screen resolution 1072 x 1448 6" screen
Click image for larger version

Name:	screenshot_2020_12_09T13_38_24+0000.png
Views:	426
Size:	36.0 KB
ID:	183881
Click image for larger version

Name:	screenshot_2020_12_09T13_43_28+0000.png
Views:	439
Size:	49.2 KB
ID:	183882

Kobo Aura H2O -Firmware 4.25.15875 - Screen resolution 1430 x 1080 6.8" screen
Click image for larger version

Name:	screen_003.png
Views:	426
Size:	31.5 KB
ID:	183884
Click image for larger version

Name:	screen_004.png
Views:	429
Size:	55.9 KB
ID:	183883

Last edited by JSWolf; 12-09-2020 at 09:01 AM.
JSWolf is offline   Reply With Quote
Old 12-09-2020, 08:55 AM   #47
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 73,970
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
Now that we have screen grabs from Kobo and Amazon with current firmware, The Kobo still dithers better then the Kindle.
JSWolf is offline   Reply With Quote
Advert
Old 12-09-2020, 12:21 PM   #48
willus
Fuzzball, the purple cat
willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.
 
willus's Avatar
 
Posts: 1,273
Karma: 11087488
Join Date: Jun 2011
Location: California
Device: iPad
Quote:
Originally Posted by JSWolf View Post
Now that we have screen grabs from Kobo and Amazon with current firmware, The Kobo still dithers better then the Kindle.
Are you commenting on the color-to-grayscale mapping or on the actual dithering between the two gray levels within each square? It looks like the kindle is just using a different algorithm (Floyd-Steinberg) than the Kobo (uniform)--see attached. I think whether one is better than the other is somewhat subjective.
Attached Thumbnails
Click image for larger version

Name:	kobo_dither.png
Views:	430
Size:	8.7 KB
ID:	183885   Click image for larger version

Name:	kindle_dither.png
Views:	432
Size:	9.5 KB
ID:	183886  
willus is offline   Reply With Quote
Old 12-09-2020, 03:11 PM   #49
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 73,970
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
Quote:
Originally Posted by willus View Post
Are you commenting on the color-to-grayscale mapping or on the actual dithering between the two gray levels within each square? It looks like the kindle is just using a different algorithm (Floyd-Steinberg) than the Kobo (uniform)--see attached. I think whether one is better than the other is somewhat subjective.
The Kobo is better looking at the two images. The contrast is better on the Kobo image. The contrast on the Kindle image is rather poor. Also, I've seen manga on a Kindle and a Kobo and the Kobo had better contrast.
JSWolf is offline   Reply With Quote
Old 04-06-2022, 07:51 AM   #50
modified
Connoisseur
modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!modified is faster than a rolling 'o,' stronger than silent 'e,' and leaps capital 'T' in a single bound!
 
Posts: 90
Karma: 50742
Join Date: Jan 2011
Device: PW5
Not sure if this is still needed, but here's my contribution.

Kindle Paperwhite 11th gen (2021), firmware 5.14.2
Attached Thumbnails
Click image for larger version

Name:	screenshot_2022_04_06T19_41_34+0800.png
Views:	199
Size:	41.3 KB
ID:	193118   Click image for larger version

Name:	screenshot_2022_04_06T19_41_38+0800.png
Views:	195
Size:	48.3 KB
ID:	193119  
modified is offline   Reply With Quote
Advert
Old 04-06-2022, 08:33 AM   #51
Uncle Robin
Diligent dilettante
Uncle Robin ought to be getting tired of karma fortunes by now.Uncle Robin ought to be getting tired of karma fortunes by now.Uncle Robin ought to be getting tired of karma fortunes by now.Uncle Robin ought to be getting tired of karma fortunes by now.Uncle Robin ought to be getting tired of karma fortunes by now.Uncle Robin ought to be getting tired of karma fortunes by now.Uncle Robin ought to be getting tired of karma fortunes by now.Uncle Robin ought to be getting tired of karma fortunes by now.Uncle Robin ought to be getting tired of karma fortunes by now.Uncle Robin ought to be getting tired of karma fortunes by now.Uncle Robin ought to be getting tired of karma fortunes by now.
 
Uncle Robin's Avatar
 
Posts: 3,417
Karma: 48736498
Join Date: Sep 2019
Location: in my mind
Device: Kobo Sage; Kobo Libra H2O
Attached are the screenshots from my Kobo Sage
Attached Thumbnails
Click image for larger version

Name:	Reader_2022-04-07_003746.png
Views:	669
Size:	11.3 KB
ID:	193122   Click image for larger version

Name:	Reader_2022-04-07_003752.png
Views:	219
Size:	11.4 KB
ID:	193123  

Last edited by Uncle Robin; 04-06-2022 at 08:40 AM.
Uncle Robin is offline   Reply With Quote
Old 04-06-2022, 09:51 AM   #52
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 73,970
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
From looking at the last two sets of screen grabs, it appears that Kobo still dithers better then Amazon.
JSWolf is offline   Reply With Quote
Old 04-07-2022, 10:10 PM   #53
willus
Fuzzball, the purple cat
willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.willus ought to be getting tired of karma fortunes by now.
 
willus's Avatar
 
Posts: 1,273
Karma: 11087488
Join Date: Jun 2011
Location: California
Device: iPad
Thank you (modified and Uncle Robin) for the recent screen shots! Still useful!
willus is offline   Reply With Quote
Old 04-08-2022, 03:17 PM   #54
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 73,970
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
Quote:
Originally Posted by willus View Post
Are you commenting on the color-to-grayscale mapping or on the actual dithering between the two gray levels within each square? It looks like the kindle is just using a different algorithm (Floyd-Steinberg) than the Kobo (uniform)--see attached. I think whether one is better than the other is somewhat subjective.
But looking as the recent Kindle and Kobo screen grabs, the Kobo one has better color dithering. So you get a truer (to the original) image.
JSWolf is offline   Reply With Quote
Old 04-10-2022, 05:41 PM   #55
shamanNS
Guru
shamanNS ought to be getting tired of karma fortunes by now.shamanNS ought to be getting tired of karma fortunes by now.shamanNS ought to be getting tired of karma fortunes by now.shamanNS ought to be getting tired of karma fortunes by now.shamanNS ought to be getting tired of karma fortunes by now.shamanNS ought to be getting tired of karma fortunes by now.shamanNS ought to be getting tired of karma fortunes by now.shamanNS ought to be getting tired of karma fortunes by now.shamanNS ought to be getting tired of karma fortunes by now.shamanNS ought to be getting tired of karma fortunes by now.shamanNS ought to be getting tired of karma fortunes by now.
 
Posts: 886
Karma: 10113994
Join Date: Feb 2010
Location: Serbia
Device: Kindle PW5 [bricked], Kindle PW1
World greatest mystery is how is it that this person (the curmudgeon) still hasn't been banned from this forum after all those years of offtopic comments across the whole MobileRead forum and for constant "Kobo is better then Kindle" blah blah blah... PW3 iz EOL-ed blah blah blah...
shamanNS is offline   Reply With Quote
Old 10-20-2022, 07:23 AM   #56
pedrogaza
Junior Member
pedrogaza goes to infinity... and beyond!pedrogaza goes to infinity... and beyond!pedrogaza goes to infinity... and beyond!pedrogaza goes to infinity... and beyond!pedrogaza goes to infinity... and beyond!pedrogaza goes to infinity... and beyond!pedrogaza goes to infinity... and beyond!pedrogaza goes to infinity... and beyond!pedrogaza goes to infinity... and beyond!pedrogaza goes to infinity... and beyond!pedrogaza goes to infinity... and beyond!
 
Posts: 8
Karma: 112156
Join Date: Dec 2013
Device: Kobo Mini
Kindle 10th gen fw5.14.3.2

Here are my screenshots for Kindle 10th gen
Attached Thumbnails
Click image for larger version

Name:	screenshot_2022_10_20T13_17_08+0200.png
Views:	141
Size:	15.0 KB
ID:	197276   Click image for larger version

Name:	screenshot_2022_10_20T13_17_13+0200.png
Views:	146
Size:	21.3 KB
ID:	197277  
pedrogaza is offline   Reply With Quote
Old 10-20-2022, 08:08 AM   #57
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 73,970
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
Kobo still dithers better than Kindle. Post #51 vs. Post #56 prove this.

Last edited by JSWolf; 10-24-2022 at 01:56 PM.
JSWolf is offline   Reply With Quote
Old 10-20-2022, 05:44 PM   #58
j.p.s
Grand Sorcerer
j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.
 
Posts: 5,278
Karma: 98804578
Join Date: Apr 2011
Device: pb360
Quote:
Originally Posted by JSWolf View Post
Kobo still dithers better then Kindle. Post #51 vs. Post #56 prove this.
And you still refuse to use words correctly and also keep posting the same off topic opinion as fact over and over in the same thread.
j.p.s is offline   Reply With Quote
Old 10-21-2022, 06:45 PM   #59
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 73,970
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
Quote:
Originally Posted by j.p.s View Post
And you still refuse to use words correctly and also keep posting the same off topic opinion as fact over and over in the same thread.
And the correct word is?
JSWolf is offline   Reply With Quote
Old 10-22-2022, 12:04 PM   #60
j.p.s
Grand Sorcerer
j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.
 
Posts: 5,278
Karma: 98804578
Join Date: Apr 2011
Device: pb360
Quote:
Originally Posted by JSWolf View Post
And the correct word is?
Than.
j.p.s is offline   Reply With Quote
Reply

Tags
dithering


Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Screenshots Jyohomson Kindle Developer's Corner 7 07-31-2014 01:06 AM
Aura Screenshots on firmware 2.9? mmatting Kobo Reader 4 09-18-2013 07:27 AM
Fonts - 21 ScreenShots Japes Sony Reader 38 08-06-2011 04:46 AM
iPad screenshots Nate the great Apple Devices 5 04-05-2010 12:33 AM
Times Reader 0.1.0.00 beta released (screenshots attached) Alexander Turcic News 3 11-23-2006 01:48 PM


All times are GMT -4. The time now is 08:58 PM.


MobileRead.com is a privately owned, operated and funded community.