STOP USING FUCK HUGE .PNG FILES FOR STUPID SHIT

STOP USING FUCK HUGE .PNG FILES FOR STUPID SHIT

Other urls found in this thread:

caca.zoy.org/study/index.html
mega.nz/#!xgxSzTbJ!H0rc1gzkQSIjXoU6KgcRryAk_ok6t9E8mWU0gdOpSIc
u.nya.is/ckoabb.png
caca.zoy.org/study/part4.html
pastebin.com/raw/rjGMWvBL
twitter.com/NSFWRedditImage

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Kys phonefag

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use jpg instead

STOP IT THESE ARE USING UP MY DATA!

Always use PNG for best image quality and no JPEG artifacts

I converted all my jpegs into pngs for long term data preservation.
Also converted my mp3s into flacs to prevent degradation.

Make me, faggot.

>implying
He's probably Australian.

You don't need best image quality when you're just shitposting. Speed should be the priority.

Jpeg is for fegs, png is amazing

dumb as fuck chump, pngs are good for simple images like
and
but sucks shit and takes up a lot of data for shit like photos compared to jpegs even with heavy compression

STOP MAKING STUPID THREADS

(You)

Compare these two images. Here is the .png file.

The source image is an uncompressed .png screenshot from a 4k video. I have reduced the resolution by 50% in each direction to make it 1080p, and then compressed it with level 1 compression to reduce the original file size from 14 megabytes to a little over 3 megabytes.

and a .jpg version using 85% compression and 4:2:2 subsampling

the .jpg file is around 9 times smaller in file size but has image quality nearly the same as the .png

So .jpg master race?

yes

for anything that doesn't have sharp lines.

Just take a look at the sky, we loose some of its blue. Jpg is shit for keeping colors like they really are

>not compressing the image as a png

EW it's horrible

Don'd do that again user

is objectively better in every way

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Sup Forums should automatically convert all images posted to 640x0 gifs with a palette of 2 colors.

Error: Your image contains an embedded file.

You could compress it a little more, you know.

thoughts on .gif?

Wew lad

Extracted the details from png and jpg given to see the point for png, the tools/filters in most 2D software based on convolution or local pixel will give a far better result with png as long as the png is extracted from raw or act like raw itself : not jpg to png.

how did you convert shades of grey to dots in gimp, also why 2 colors when you only need dots

>you will never enjoy the worst combination of 90s and 2017 internet while sniffing gasoline in a fucking desert

note: png can be compressed a bit more so hiroshimoot can save money on megahertz

>wew an imperceptible difference

magnificent post

NO

>2.87 mb

how do .png and .jpg compare?

The image is every so slightly worse, but consider that 99% of the images posted on Sup Forums are just dumb memes. There is no reason to use .png and have file sizes over 1mb for some dumb frog post.

I intentionally left the .png on the large side to show the difference in quality between a larger .png file and a smaller .jpg

I thought exactly the same the other day

Sup Forums should resample the images
some of them are clearly bad optimized
the phone screenshots and pictures in paritcular

o

>in gimp
Don't use Gimp, use Krita instead.

I implemented my own dithering lib. Read this if you want to know how it works, especially chapter 3.
caca.zoy.org/study/index.html

I need to find a better PNG encoder than Go's stdlib one. Not sure I want to use an alpha channel since images may be displayed on dark backgrounds.

Compare the sky on the top-right.

maybe if a file is larger than 1mb for most boards it should compress and resize

for specialized boards and files under 1mb it should do nothing

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I actually really, really, really want a board with an ultra low file size limit and no other subject for discussion so Sup Forums will have another general discussion board BUT the conversation will be limited to creative meme use through the file size limit, as well as porn and /soc/ fags mostly kept out. I think it could be a really great board.

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How'd you make this?

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even BBEETERR

Link the original screenshot if you want to play around with it.


mega.nz/#!xgxSzTbJ!H0rc1gzkQSIjXoU6KgcRryAk_ok6t9E8mWU0gdOpSIc

I'm working on a BBS "image" board (meant to be accessed via SSH) that uses braille characters to represent images, it'll be fun.

>using mega
Lurk more kiddo.

>manga scans and translators
>use jpg

Nothing wrong with mega.

PNG IS GREEEEEEEAT

mega is fine

FROGURT FILE

no

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Everything's wrong with mega when you have a thousand pomf clones to chose from that let you access uploaded files directly.

u.nya.is/ckoabb.png

>the humble .png is killing off all the poverty stricken underage and dumb student mobileposters

The solution was there all along, use up all their data and they'll finally fuck off.

pomf could be gone tomorrow. mega links last the longests

So when are we FINALLY going to replace JPEG with something that isn't based on 1980's algorithms?

use ipfs

We can be stronger

Does your test image you wanted to share with this thread really need to stay accessible for that long though?
Besides it's like people already forgot what happened to megaupload. If you want your files to stay accessible longer you should host them in a distributed way.

This.

custom app the code is ~
lum = (r+g+b)/3
if lum_currentpixel >= lum_sum_nearpixel = black_pixel
else white_pixel

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JUST USE THE COMPRESSIONS FOR WHAT THEY ARE MADE FOR GODDAMMIT
JPGS FOR FOR REAL LIFE SHIT
PNGS ARE FOR THE MONGOLIAN CARTOONS

Mega is a pretty cool guy.

I'm not seeing any difference

neat, you have gone in pretty deep to the point of automatically adjusting shades of grey and things to suit the human eye

caca.zoy.org/study/part4.html

[spoiler]I used tinypng.com[/spoiler]

He's full of shit.

Open each picture on a separate tab and flick between them.
They are visually identical.

He's probably comparing them side-by side on a shitty TN panel with terrible viewing angles.

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>you have gone in pretty deep to the point of automatically adjusting shades of grey and things
I only implemented existing algorithms though.
Also I haven't implemented anything from chapter 4 yet since I think Floyd-Steinberg Error Diffusion already looks good enough.

STRONGER

Near pixel just being 8 neighbors?

you are like a little child

Make it so the "images" have to be ANSI art.

Exact

No, braille.
See pastebin.com/raw/rjGMWvBL
Or curl it, it looks better in a terminal.

It's because fags take screenshots or save images on their phone and don't know how to convert. The most egregious offense are those 3 MB screenshots of some still frame of a 1080p YouTube video saved as a .PNG

Nobody that has been on imageboards for over 4 years would make this mistake. It is telling of absolute newfaggot retards

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The internet is so fast why would I bother?

>my internet is so fast and I don't have to pay for the hosting or serving so why should I bother

fixed.

zoom in and its pretty bad

Correct.

it's twice the size, who cares

I do this all the time and I've been here since like 2011.

people who zoom in

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well if you want a perfectly upsized 10K image of carol you let your own GPU sweat

i don't, 4384x2992 is big enough

Cool, though I'd say to limit the width to something like 60-70 characters so it sits comfortably within an 80 column window.

wow, varg got old.

>315kb + 17kb = 85kb
yeah no, you're wrong.

I was thinking the double. 320 pixels wide, so 160 columns and 100 lines max.
80 columns is unfortunately just a bit too small to resolves certain details.

Here you go op I optimized ur file

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