Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 54888

Visual artifact is usually some kind unwanted result/object in an image, often due to lossy compression. Examples could be pixelation, "blotches", texture corruption.

4 votes
1 answer
1k views

Strange squares appear in halftoned PNG image with transparency

I have a strange issue with large, off-color "squares" appearing when I preview a PNG with halftones on a transparent background. This doesn't happen with all images (so far, I've only had the issue w …