Please log in. To create a new account, enter the name and password you want to use.
If you supplied an email address when you signed up or added a email later, you can have your password reset.
This user name doesn't exist. If you want to create a new account, just verify your password and log in.
This user name exists. If you want to create a new account, please choose a different name.
Enter the current email address you have registered in your profile. You'll get an email containing your new password.
You have no email address in your profile, so you can't have your password reset.
Password reset. Check your email in a few minutes
That account does not exist.
The email address specified is not registered with this account.
Delivery to this email address has failed.
Since the answer didn't explain why they occur and didn't really touch on why it matters, I felt like adding a bit more information.
BTW, when someone asks a question like this about artifacts, you should point them to section 2 of the Image Quality Evaluation page. That explains it fairly well and has some good examples. It helps a lot to be able to compare multiple copies of the same image with different levels of artifacting.
To put it really simply though, artifacts are the result of a sacrifice in image quality for the sake of minimizing file size. PNG compression never sacrifices image quality. But JPEG compression essentially always does.
Though, if you use the highest quality JPEG settings, even the sharpest eyes shouldn't be able to discern the difference. (When zoomed in switching back and forth between the two, you might see a very slight difference, but not enough to tell which is the JPEG version).
This is a site for high quality wallpapers. Artifacts lower the image quality, so we don't allow images that have too many.
Zolxys
8 months agoBTW, when someone asks a question like this about artifacts, you should point them to section 2 of the Image Quality Evaluation page. That explains it fairly well and has some good examples. It helps a lot to be able to compare multiple copies of the same image with different levels of artifacting.
To put it really simply though, artifacts are the result of a sacrifice in image quality for the sake of minimizing file size. PNG compression never sacrifices image quality. But JPEG compression essentially always does.
Though, if you use the highest quality JPEG settings, even the sharpest eyes shouldn't be able to discern the difference. (When zoomed in switching back and forth between the two, you might see a very slight difference, but not enough to tell which is the JPEG version).
This is a site for high quality wallpapers. Artifacts lower the image quality, so we don't allow images that have too many.