So recently I wanted to animate something Sonic-related with the sprites from Sonic Mania, so I went onto the spriters resource (who dosen't?) and downloaded the spritesheet for Sonic. I did the usual “crop it so that the only sprites are the ones I wanna use” thing with the photo editor on windows 10 (windows 10 is my os, btw) but I nocited something… as soon as I press “save a copy”, the quality drops and the colors become weird! and apparently it's been doing that ALL THE TIME, it's just that only now I notice because for once I'm using a spritesheet with a background that isn't white! it does the same thing when I use paint to crop as well!

Also, whenever I export costumes, no matter which file converter I use, the size gets doubled from it!

Try a different image editor. Paint.net is free.

Paint.net is just a website where you buy paint tho????

TheMaskedMimikyu wrote:

Paint.net is just a website where you buy paint tho????

No, paint.net is a software package. You'll find it here https://www.getpaint.net/

It looks too complicated

You can crop out just the sprites you want to use inside the costume editor of scratch itself.

Yeah but the spritesheets are usually so big that it mucks up the pixel quaility.

bump

You use the integrated Paint in Windows10 instead the Photo Editor.

TheMaskedMimikyu wrote:

It looks too complicated

Actually it is just as easy as MS Paint but with more features… If you download and install it, you can import the photo and convert it into another format.

Speaking of formats, what format is it in? If it is in JPEG that might be the problem.

axus- wrote:

TheMaskedMimikyu wrote:

It looks too complicated

Actually it is just as easy as MS Paint but with more features… If you download and install it, you can import the photo and convert it into another format

But IDK how to use MS Paint…

axus- wrote:

Speaking of formats, what format is it in? If it is in JPEG that might be the problem.

Yeah, it is in JPEG. Everything on the sprinter's resource is JPEG. what exactly is the problem with JPEG, and how do I fix it?

bump

TheMaskedMimikyu wrote:

-snip-
Yeah, it is in JPEG. Everything on the sprinter's resource is JPEG. what exactly is the problem with JPEG, and how do I fix it?

Well JPEG usually has image compression which can downgrade image quality. This means colors, pixels, etc. can all be changed. This is a huge problem if you are looking to be a perfectionist like me. Usually image compression is only between 90-75% which barely affects quality but sometimes compression can be at 50% which would probably cause the problem.

tl;dr Change the file format from jpeg to png. You probably wont have as much of a problem. Or it could be that it is your computer.

Every pixel in Scratch is made up of 4 subpixels. This doesn't affect importing images however when exporting images the subpixels also get exported making the image twice as big as it shows unzoomed in on Scratch.

Fixed the problem with spritesheets, everyone.

muellly wrote:

Every pixel in Scratch is made up of 4 subpixels. This doesn't affect importing images however when exporting images the subpixels also get exported making the image twice as big as it shows unzoomed in on Scratch.

Well how do I fix that?

TheMaskedMimikyu wrote:

Fixed the problem with spritesheets, everyone.

muellly wrote:

Every pixel in Scratch is made up of 4 subpixels. This doesn't affect importing images however when exporting images the subpixels also get exported making the image twice as big as it shows unzoomed in on Scratch.

Well how do I fix that?

After exporting the images, in another program shrink them by 50%.

I would recommend using https://www.piskelapp.com/ import your sprite sheet, edit it, then export it to .png . yes it's going to be painful when working with large sprite sheets but this one would work for smaller ones.
I hope this helps!