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

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7
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1answer
64 views

Logic behind displacement of notches when avoiding inverse trapping artefacts in SVG

I have a question that is based on the GD@SE question, "Is there a reason Hillary Clinton's logo has hidden notches?". Like that questions, this question is purely about graphic design and not ...
6
votes
1answer
2k views

Removal of scanning artifacts

I've had a couple of times when working with scanned images where the piece I need is obscured or otherwise blemished by things such as halftoning in the case of printed items or moire effects when ...
5
votes
3answers
1k views

How to get rid of these outline artifacts in an Inkscape SVG trace?

I can get good trace results in Inkscape converting a bitmap to a vector image - except for these persistent thin outline artifacts. They resemble a topographic map and pretty much ruin the trace. ...
5
votes
2answers
599 views

Why are certain colors more prone to compression artifacts than others?

I most often see this with compressed video, but I've also seen it often enough with JPEG images. Many times blacks, reds, and other generally dark colors seem to be especially prone to compression ...
4
votes
3answers
98 views

Can adjusting color (or grayscale) properties of an image affect its visibility in daylight?

I'm trying to find ways to make images more visible under daylight (i.e., when daylight reflects off the image screen/print). For my project, I want to display digital images on an electronic display ...
3
votes
3answers
50 views

How can I resolve this gradient issue on a TV screen?

I am having an issue with a logo designed for my company. The design consists of the company name with a circular gradient behind it. This image is used frequently on TVs, as it is for a film company,...
2
votes
4answers
2k views

Save for Web & Devices in Illustrator CS5 Causes Artifacts on Large Files

I am saving with these settings: And ending up with weird transparent line artifacts: The ai file does not have this, and the path has nothing near the place where the lines are showing: From ...
2
votes
1answer
24 views

adobe illustrator to pdf gives strokes around path

I exported my AI project to pdf and saw some weird white transparent lines between shape left is from ai right one is from pdf (look closely at hearth shape)
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2answers
211 views

Scale down an image in GIMP without losing resolution

How do I scale down an image to a smaller size in GIMP without an unnecessary loss of resolution? I know that I am losing too much image resolution because when I downscale the same image using HTML ...
1
vote
1answer
39 views

How to reduce web artfacts?

Got a real issue with web artifacts. I create a photoshop image with text and it's crisp, save it for web at 80% and still crisp. As soon as that image is rendered by a web browser it has a lot of ...
1
vote
0answers
22 views

Why am I getting dotted grey edges on my batch exported images?

I have created a script which batch exports an ai file into an SVG file and multiple sizes of JPG and PNG files. The script creates three directories in the parent directory of the directory the ai ...
1
vote
0answers
178 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 ...
1
vote
0answers
126 views

Which HSV-noise values do not cause artifacts on an LCD screen?

I have come to notice that certain HSV noise filter values applied to a uniform background colour look horrible when viewed on an LCD screen under certain viewing angles. This is more noticeable on (...
1
vote
0answers
573 views

Photoshop suddenly shows artifacts on my file

I am running Photoshop CC on Mac OSX 10.9.1. Today I opened one of my PSD files this morning and all of a sudden, these artifacts appear in some layers that have some effects on smart objects (but ...
1
vote
3answers
86 views

What is the best technology for producing a video like this?

In order to produce a video like this... http://www.stumbleupon.com/su/1rjWQH/www.youtube.com/watch%253Fv%253Ddv4j4bguYYk What tool would you use? Flash? Or there's a better tool? Thanks
0
votes
0answers
15 views

Illustrator preview graphics missing wedge

I am having an issue with illustrator whereby my imagery is showing a missing wedge that I find very annoying. Is there a way to get rid of it?
0
votes
0answers
27 views

Why do we get blurred marks when uploading PDF?

We have been using Adobe Acrobat Pro DC for years and never had a problem until now. Every time we create a PDF cover and upload it there are blurred marks around the font and the image. We have ...
0
votes
0answers
40 views

Photo with transparent coloured overlay has lots of artifacts when exported from PS

Ive got a high res photo that ive placed a transparent coloured overlay ontop of. In photoshop this looks fine, but when i export it either by File > Save As > Jpeg or File > Export for web ...
0
votes
2answers
54 views

Why photoshop distort imported image?

I've made a screenshot of my phone screen and imported it in Photoshop by dragging from disk. However it's clean "as-is" image of the phone screen, it has appeared in photoshop slightly blurred. How ...
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votes
0answers
28 views

Poor jpeg output from InDesign CC [on hold]

JPEGs from InDesign have random 'slice' marks in it! What's causing this and how can I remedy it?