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File: _nekiis-2bit.png (112 KB, 1920x1080)
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Last thread reached bump limit

>take any wallpaper (preferably not too many contrasting colors)
>save as PNG, but change your settings to save in 2-bit color depth - adjust dithering level as necessary
>???
>easy minimalistic wallpapers

Previous thread: >>2202966
>>
>>
>>
File: lwa - 3 kichi 2b01.png (206 KB, 2560x1440)
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File: 1610724862246.png (339 KB, 3000x1688)
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>>2210781 how can I do it on photoshop?
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File: 2b1.png (514 KB, 1920x1080)
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>>2210781
just tried it in GIMP idk which one is better tho
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File: 2b2.png (514 KB, 1920x1080)
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>>2210835
second pic
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File: 1609181282081.png (88 KB, 1920x1200)
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File: GR86EDIT.png (172 KB, 2048x1152)
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File: Proche718EDIT.png (189 KB, 1920x1080)
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>>2210971
>>
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File: 122947.png (150 KB, 1920x1080)
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File: G8brJuy.png (243 KB, 1510x1080)
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>>2210835 is better in my opinion, less noise/ artifacts on the left side

i'm also surprised how well gimp handles more complex images
>>
File: __shinano_4color.png (138 KB, 1440x810)
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man, I wish it was easier to choose the palette on gimp rather than just automatically do it
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File: 1556179082467.png (399 KB, 2560x1080)
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Here's an attempt
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File: GI0V3q_PNG convert.png (85 KB, 1920x1080)
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Dithered version of an Asuka one I was using. Stole the logo for >>2211395
>>
What exactly do I need to do in Gimp to achieve this?
>>
>>2211440
I use Image > Mode > Indexed
>>
File: Holo_Phone_Wallpaper.png.png (52 KB, 1080x1920)
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Making these is fun!
>>
>>
File: 1626330141689.png (25 KB, 1920x1080)
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>>2211489
eww furry
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File: aria6.png (108 KB, 1920x1080)
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File: shinku and suigintou2.png (222 KB, 1920x1200)
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File: miku3.jpg (2.07 MB, 1600x1050)
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I just realized the last 2 I posted were 1-bit. Oops!
>>
File: ykk2bit1.png (504 KB, 2112x3000)
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File: test1.png (317 KB, 2381x1670)
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no changes, just 2 bit
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File: test2.png (349 KB, 2381x1670)
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auto-levelled first, gives it more contrast and the grey is now blue, still 2 bit
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File: 1629070365875.png (213 KB, 1920x1080)
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PaintNET just lets you save in 2-bit. It's neat.
>>
File: two.png (210 KB, 1500x1060)
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>>2212916
Effects / Color / Quantize lets you have more control over the number of colours as well.
>>
File: three.png (307 KB, 1500x1060)
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File: reduced.png (145 KB, 1600x891)
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File: 1501898499157-2.png (200 KB, 1920x1080)
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>>2212909

what is auto-level?
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File: 1626909158055_2b.png (109 KB, 1920x1080)
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File: 1618221459106.jpg (752 KB, 4096x2352)
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can someone add 2 bit depth to this?
T.I.A
>>
File: 1626469205033_2b.png (38 KB, 1920x1080)
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File: Lance_2б.png (71 KB, 1920x1080)
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File: Ankanon_2009.png (140 KB, 1920x1080)
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File: le_malin.png (3.12 MB, 5462x3541)
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I'd be glad if anybody could lend me a hand and let me know how can I make these pictures look better. GIMP btw!
>>
>>2214810

for one get rid of lolis in your PC
>>
>>2214810
for two create custom palette to control colors
>>
>>2214199
hello anon, what color background do you want
>>
>>2214873
i don't know anon, i think the original color is fine but if it doesn't work out i'd love to see what you come up with. :)
>>
File: test.png (150 KB, 4096x2352)
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>>2214874
same anon here, didn't realize that it was actually a jpeg. tried out pngquant since i have no idea how to do it with gimp and here's what came out of it
>>
File: anon.png (265 KB, 4096x2352)
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>>2214874
disregard >>2214882 i just realized that 2 bit meant 4 colors and not 2
>>
>>2214883
this looks seriously cool, thanks anon. is it hard to do with gimp? t. someone who has 0 experience with it
>>
>>2214884
No problem anon. I used pngquant to make it as I can't get the hang of gimp
>>
>>2214884
Same anon here don't mind >>2215009 I figured it out and it's fairly easy. Just open up the image you want to process in gimp and then press "Image" in the menu bar and select "mode" and then "indexed". Then choose generate optimum color palette and set it to 4 for 2-bit and then press generate.
>>
File: 1630942332584.png (816 KB, 5120x2880)
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Not anime but I liked
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>>2215081
cringe
>>
>>2215081
great wallpaper anon
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>>2214882
what series is she from? looks good thanks for the pape
>>
File: 1606926134287_2b-s.png (26 KB, 1920x1080)
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File: paladin.png (165 KB, 1920x1080)
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did some on a whim and I like how they turned out 1/3
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>>2215778
>>
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>>2215779
3/3
>>
File: Dithered Dracula.png (56 KB, 864x686)
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Tried doing it in photoshop, but not sure how many colors to use. This one is 16 colors, and any less just destroys the darks like an old NES game.

Are there more effects I need to apply to get that old PC98 game feel?
>>
>>2215797
Your dithered Dracula is not dithered enough.
>>
File: A1.png (85 KB, 1600x900)
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Tried it out a little bit
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File: A1.png (63 KB, 1600x900)
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>>2216020
Alternate after further experimentation
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File: 1618862307104 2 bit.png (78 KB, 2560x1700)
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this is cool im gonna make more of these
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File: 1618862307104.png (166 KB, 2560x1700)
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>>2214883
>2 bit meant 4 colors and not 2
noted
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File: Astronaut 2bit.png (525 KB, 1920x1080)
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First attempt
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File: Astronaut 2bit.png (525 KB, 1920x1080)
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>>2216579
>>
File: 2Bit 12.png (293 KB, 1465x1896)
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I tried making a few
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File: 2Bit 17.png (230 KB, 1920x1080)
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>>2216667
>>
File: 2Bit 24.png (610 KB, 3309x1802)
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>>2216668
Last one
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File: Arctic Gang.png (241 KB, 1920x1080)
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File: mother-and-daughters.png (75 KB, 1920x1080)
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>>2216721
>>
File: floyd-dithered-marisa.png (219 KB, 1920x1080)
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for the gimpbros, do you guys use positioned or floyd-steinberg?
>>
>>2216924
Floyd produces ugly stripes. It might be better with larger palettes, but I always use positioned for 2b
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File: kizu02.png (84 KB, 1920x816)
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did a few more in gimp
1/3
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>>2216967
2/3
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File: kizu04.png (66 KB, 1920x816)
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>>2216967
>>2216968
3/3

the rest are too shitty to share
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File: Ithinkitworked.png (83 KB, 1440x900)
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Pretty nice, I've always add a little noise to wallpaper since I loved the way they looked. This could be even better, but I think not every wp would be fit. Gonna try to reproduce with some of mine, and see how they end.
>>2211442 this is the way?
>>
>>
Anything else to take into account in gimp aside of doing the indexing with 4 colors and changing the dithering algorithm? Is there any other parameter I can set?
>>
>>2217195
play around with the palette to get better colours if you'd like (windows > dockable dialogs > colormaps)
>>
File: 219723.png (1.12 MB, 4378x2743)
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>>2217408
Whats the point of posting nonexisting resolutions in 2b thread? The 4 colors will end up interpolated
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File: Flan.jpg (4.91 MB, 1920x1080)
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having fun with this so i'll throw in a couple
>>
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>>2219400
>>
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>>2219401
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>>2219402
>>
File: ngeasuka2bita.png (363 KB, 3675x2175)
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>>2219403
>>
>>2219404
This is 4bit and >>2217469
>>
if you only knew how gay things really were
>>
>>2215356
It's a vtuber. Ange Katrina.
>>
File: 2bit Miku on a Wing.png (1.02 MB, 2560x1440)
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Tried something with a non solid BG and struggled with the contrast in the dark areas
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File: Well_2b.png (35 KB, 1920x1080)
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>>2220973
here it is at 4k as well
>>
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Does dynamic 2bit count?
Picrel is 4 colors / row
from rgb 2 bit per channel (2^6 = 64 colors)
algorithm mine
>>
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>>2222316
Another sample., autumn guya.
>>
>>2222317
idk if it actually counts but anon posted kaguya so good in my book
>>
>>2222335
based and kaguyapilled.
>>
>>2220403
Do you mind posting the source? I might want to try my algorithm on it.
>>
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>>2222317
Full pic, as I've implemented png output.
After so much screenshotting, it turned out to take a minute to do. Based pygame.
>>
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>>2222316
>>2222335
more guya.
>>
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>>2222380
Doesn't always go well. This was terrible.
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>>2222382
But it is nice when it works.
I'll try something in a more wallpaper friendly resolution next.
>>
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>>2210794
Yeah, found your source pic, gave it a try.
Wasn't great.
I'll maybe try manually cheating the algorithm a little bit.
>>
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>>2222391
Forcing presence of red in all lines. Not great either.
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>>2210971
Fully dynamic again.
Works much better with this pic, fortunately.
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>>2216924
Positioned, if I use gimp.
f-s tends to bleed colors in horrible artifacts too much
Sometimes it works and it is nice, but most of the time it bleeds.
But using my own algorithm is more fun than generic gimp converter.
>>
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>>2222395
different row colors selection algo.
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>>2222397 >>2222394
earlier pic, with the alt strategy.
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>>2222398
br0ken algo edition.
>>
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>>2222399
less broken algo new hybrid strat.
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>>2222400
hydrid strat with balance tilted one way.
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>>2222401
hydrid strat, balance titled the other way.
Such perverted digital artifacts.
I'm getting aroused.
>>
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>>2222391
Her again, really messy hybrid algo edition.
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>>2222397
Marisa messy hybrid.
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>>2222405
marisa soft hybrid.
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>>2210972
pecora popcnt algo.
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>>2222408
pecora hybrid popcnt>edge algo.
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>>2219142
slime edge-finding
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File: 1627940830232.png (1.07 MB, 3246x2259)
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>>2222410
slime popcnt
>>
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>>2222410
slime popcnt = edge-finding
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>>2222412
slime popcnt > edge-finding
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>>2222410
>>2222413
slime popcnt < edge-finding
I think this is my favourite so far.
And a good stopping point for this session.
What does Anon think? Which of the dynamic 4-color slimes does look best?
>>
>>2222416
My eyes hurt but good effort Idk my fav maybe the third
>>
>>2222429
Good taste. There's enough edge-based colors for the tree detail to be there.
It would be my fav except I'm not fond of what it does to the slime's human form hair / slime form in general.
>>
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>>2222429
Messing around a little more, for good measure.
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>>2222431
Just popcnt here.
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>>2222431
>>2222432
Sauce:
https://www.pixiv.net/artworks/94964434
Artist got a bunch of pics of this girl (original, supposedly). She's fairly cute.
>>
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>>2222433
Yeah, I like her.
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Sunshine City.
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>>2222468
sunshine city, edge strategy.
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>>2222468
hybrid strat
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sakura tram.
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Love Live goods, 2bit greyscale.
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>>2222473
popcnt
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>>2222473
edge
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>>2222473
hybrid edge < popcnt
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Random train station.
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Saitama, 4 greys.
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>>2222478
Saitama, popcnt.
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>>2222478
saitama, edge.
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>>2222478
saitama, hybrid.
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platform at ome station, 4 greys.
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>>2222482
ome popcnt
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>>2222483
edge
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>>2222484
hybrid =
>>
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homu
>>
File: Miku Night Wing.png (3.93 MB, 2560x1440)
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>>2222344
Can't find the original source, but I have the unedited image
>>
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>>2222579
popcnt.
>>
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>>2222579
edge
>>
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>>2222579
hybrid, edge>popcnt
Since one color comes from popcnt, it is ofc going to be the black background here.
So it's edge, but less broken.
>>
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>>2222579
balanced hybrid
>>
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>>2222579
hybrid popcnt > edge
I think this is my favourite.
Which do you like most?
>>
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>>2222591
hybrid popcnt > edge
Leveled source via curves.
>>
>>2222591
>>2222592
FYI, 4 colors are picked from a palette of 64, which come from having just 2 bits per R,G,B channel. Think EGA.
It is intended to support ECS chipset's special modes (productivity / super hires and other custom), which use full Agnus DMA at 4 colors, and a special denise mode that tolerates that which has 2 bits instead of usual 4 depth per channel.
This is why there's such blatant color changes.
OTOH it also means there'll be a lot of pixels of the same color at a given line, which makes the popcnt palette picking strategy work.
>>
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Miyako
>>
am fat and lazy, please proceed to show me how to re create such things.
>>
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This is my first time doing this and I don't know if I'm doing it right.
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>>2222693
yohane a cute.
Looks nice, but you only used one bit depth.
You had 4 available.
>>
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>>2222696
My bad, I forgot that 2-bit doesn't equate to 2 colours. I guess lacking sleep does that to you.
This should be fine now, right?
also yes, yohane a cute.
>>
>>2222709
Indeed, that's 2bit proper.
yoshiko rhimes with oshikko.
>>
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>>2222768
>oshikko is peeing in japanese
That was a good one anon, you deserve 2 idols for the price of one image.
I'd pee myself too if I was the 2nd most popular idol in Aquors.
>>
>>2222779
Ironically, riko also rhimes with.
While I like them all, my faves are dia and kanan.
>>
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>>2222796
You have good taste anon.
They were also my faves back then but as I got to know yoshiko and riko more, I gradually found myself liking them more than dia and kanan.
>>
>>
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>>2222808
You do, too.
Gave this dia the crude 4color / line treatment.
>>
>>2222826
You should make dark red darker to get more detail from shadows.

Also please, post real resolutions, why do you post 5109x7271?
>>
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>>2222841
How do you do the 4 colours per line thing? I followed >>2211442 and it didn't really give me a lot of options to play with. Nice dia btw, way better than mine.
>>2222857
My bad sorry, it won't happen again.
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>>2222903
>How do you do the 4 colours per line thing?
It's a from-scratch custom implementation by myself. It is still crap; not ready for general public's eyes.
I don't think I've seen any other implementations in the wild.
The target is a special Amiga video mode, so called "productivity mode", available with ECS denise. A500+/A600/A3000.
It allows a mode with interlaced-like resolution but progressive. It uses double the bus bandwidth, so it occupies full DMA bandwidth with just 4 colors, thus the palette cannot be changed during raster, only during dead margion areas / blanking.
Due to limitations with the DAC, only 6bit RGB is available, so the 4 colors are chosen among 64.
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>>2222905
So you wrote something that emulates productivity mode? I can barely look up information pertaining to it without being thrown into an old forum/website.
So productivity mode is to make way for larger resolutions at the cost of colour depth and you managed to take advantage of its limitations to make wallpapers? sounds pretty cool anon, keep it up.
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zero two in 2 bits
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>>2222391
>>2222395
how do you create these aesthetic line glitches?
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>>2223167
See >>2222905
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>>2223167
Or if you mean your kurisu, it's a type of dithering whether even/odd lines dither/not.
It is a relatively common strategy. I believe I've seen it used in HAM_converter, somebody's implementation of amiga image conversion fuckery.
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misaki a cute
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>>2223213
no, I meant the ones I mentioned in my post
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>>2213065
this oine better
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lain background 4k upres, 2b positioned
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more lain w/subject, 2b, eroded and played with the colors
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Just made dis
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>>2210781
do you need special program for this ?
cant find this in Save AS in photoshop
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>>2224290

i use paint.net, so i guess any program should be able to do it
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>>2224294
ok here i go
1/??
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2/??
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>>2210781
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HOLY SHITTTTT
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>>2223963
cute
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>>2224355
AAAAA
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>>2210781
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This cute policewoman tried really hard. The suspect she was chasing still managed to get away.
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hiroshima
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>>2225755
floyd
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>>2226520
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