Photoshop :: Artifacts
Nov 16, 2003
I need just a bit of help with an image that I am trying to correct. Am having no problem with the color levels or the brightness/contrast. My problem is that after I have adjusted all the needed levels, brightness/contrast, etc I am stuck with an image full of what I call artifacts. I have tried everything I can think of to clear this up but obviously there is something I am missing. Hope someone is able to help me with this. The image that is posted is the original that has been untouched.
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Aug 6, 2013
I am creating 3D renders in PS CS6, and I am getting strange blocky artefacts in the renders. These appear on first pass and persist throughout the render. This has happened in the last 2 renders I have tried - I haven't used 3D for a while before this and I don't remember these before.
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By blocky artefacts I don't mean the JPG artefacts created by the forum's degrading of the uploaded image, but the light coloured rectangular blocks around the "s",On Win7x64 with latest PS CS6 update; NVidia 650M2GB on a Core i78GB.
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Feb 3, 2009
Iinstalled version of CS4 v11 with no plugins and all settings at the defaults. If I go to Help > About Photoshop (and other menu selections) it causes a gray line to suddenly appear through the menu bar. If I then move my cursor over the minimize/maximize/close icons in the upper right, artifacts appear. .
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Jul 31, 2009
i recently fixed a virus on my computer after a few days hard work tracking it down, and since then i have experienced no blue screens anymore, but i had a probel with explorer.exe where it used sometimes over 800MB of memory doing nothing. With more research and monitoring, i discovered its cause was actually a corupt music file on my desktop, and every time i refreshed my desktop, explorer's memory usage would jump up a few dozen more kb of memory.
This is now fixed. BUT, i still have one symptom of something wrong, that doesnt seem to go. My PC is back to being fast it seems now, and there is no noticable real lag between just opening folders like there was, but my desktop still has problems. If i close a full screen program, the computer doesn't exactly slow down, its just the program closes very slightly slower than normal because it closes from top to bottom.
MSN in particular, always leves it's title bar behind when closed. And if i click and drag on my desktop, the little dashed box it makes sticks and doesn't go away. All of this is resolved by a refresh of the desktop, but it doesn't explain why it is happening. Windows XP 32bitNVidia 9800GTX GPU4GB RAM
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Jul 17, 2006
After using the Filter Extract and Magic Lassoo methods to erase a background of say a model, I usually end up with lots of artefacts.
I then use the backgound erase to remove these. But I find it very time consuming as they do not show up that well on the standard grey checkerboard background.
how to see artefacts easier ?
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Mar 30, 2013
I'm working on a project and I'm painting a robot which is in a dark grey. I need to be able to paint in the shadows but Photoshop is going haywire with rendering the gradients. I'm simply using a round brush with 30% opacity and 20% flow. What I'm getting is some VERY ugly jaggedy stepping of tone.
My current project dimension are 5000 x 3000 px. I don't get what is going on. I have not changed blending modes, nor am I using any alternate modes on my brush. All the settings are pretty much out of the box, except for the global settings I mentioned above.
I'm a digital illustrator and I've been using PS for years and I've never run into this problem before. I'm runnin PS CS6 on Windows 7 pro with an NVIDIA GeForce 9800 GTX+ video card.
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Jun 7, 2012
I'm having a weird problem in Photoshop CS6. I just installed it and I've been getting strange "artifacts" when I use the move tool. Also, when I work with text it displays poorly. It looks rough and not anti-aliased. I'm running Windows 7 64bit and have AMD 6850 GPU.
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Jun 16, 2009
I have some really good resoloution images for a large 8x4ft poster project. but one of my clients larger images (an important one) is just a 1000 x 1000px image @ 72dpi that has some artifacts which needs to occupy a approximate 25 inch square on the final print. I can't get a better quality image than this from the client at this time as they don't have it. what techniques can I use in photoshop to increase the print size while improving the final printed image. In the past, I sized up the image to the size needed and set the dpi from 72 to 300dpi (using "bicubic smoother"), add some surface blur, add monochromatic, uniform noise @ 2% +/- (to help smooth out the artifacts). with this image now, there are a lot of flat shiny surfaces where the artifacts are more noticable, etc. what kind of techniques would you use for this kind of job? (apart form hitting the client xD)
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May 10, 2006
I am getting unwanted artifacts when I work with medium to large size brushes in Liquify. The artifacts look like lines of a few pixels width that are offset from the surrounding image area -- almost like pulling a couple of threads in a woven patterned fabric. This has happened with both large and small file sizes. It necessitates way too much retouching.
I use liquify extensively on images and didn't have this problem when I used Photoshop 7. It began with CS. I am now using CS2 on a G5 with OS 10.4. Any ideas how to solve this?
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Nov 13, 2013
I am working with PSCS6 CC. When using the healing brush in content aware or proximity mode the tool generates artifacts.
What is causing this behavior and how can it be prevented?
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Oct 9, 2011
In images where there's flat colour (eg book & cd covers), how do you easily get rid of any unwanted noise, without making edges blurry, or resizing down?
Take this image below for example. It's essentially 5 flat colours. How do I remove the jpegging without blurring the colour edges any more than they are? (click to see full size, it doesn't look so bad squeezed down in a forum page)
I tried Filter > Noise >Reduce Noise with no luck. I thought Posterize would work but it's too harsh on the edges.
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Oct 15, 2012
I have been a long time Photoshop user and am having screen redraw problems since I have purchased a new system. I did not have this problem on my Macbook Pro which was hooked up to the same monitor.
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Problem is: When I open a file in CS5 (12.0) and move the image around screen Its not redrawing smoothly. There is some stair-stepping artifacting going on. Its not lagging....just creating some stair-stepping like artifacting.
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If I open the same file in "Preview" (version 6.0) and recreate the same image movement there are no problems.
System is :
Mac OS mountain lion 8.0Â
Mac Pro 3.2 Quad core (5,1) Â
Monitor NEC PA271W (W/spectraview)Â
GPU is ATI Raedon 5770 Â
Monitor to Mac connection is DVI to DVI
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Jun 11, 2013
We've encountered a huge problem with some JPEGs we retouched for print.Either directly after opening them in PS or after saving and closing the image (mostly the case) it's getting some kind of horizontal stripes / artifacts. Problem is, sometimes they only appear after saving the image, so we'd have to reopen every one a few times to make sure this error does not occur. Also, the images look abolsutely fine in the preview AND wehen placed in InDesign. Sometimes they're visible in the exported PDF, sometimes they aren't and we eventually find out when the product is already printed.
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We're running CS6 on OS X 10.7.5 with newest patches and Updates. All images are HQ stockphotos from familiar sites.
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Dec 10, 2012
I recently changed pc and monitor causing a damn problem with those color spaces! My monitor is a Dell u2412m and by default it's setted on:
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Now when I open a RAW file with ACR and choose sRGB as color space the result is this:As you can see, most of the photo presents black shadows. If I save the file and I open it with windows image it's perfect. Indeed, if I choose ProPhoto for monitor and for the photo the visualization is fine:
I must change the color space in sRGB or even RGB before save the final image so I really would like to se a real preview of it in photoshop instead of saving it first. So the problem occurs when I save to RGB (less artifacts) and sRGB (lots of artifacts!). I can't understand this because I'm using the same color space as default for my monitor.
The pc configuration is:Intel i7 3770
Ati HD7870 driver Ati 12.11 beta
RAM 16gb
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Jan 16, 2013
The Photoshop CS6 (13.0.4) selection, text, and shape tool causes colored artifacts on screen. I'm running on a retina Macbook Pro updated to the latest ML release. I have disabled GPU acceleration. I have also tried starting Photoshop with no plugins but this does not work.
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I have created a video which shows the phenomena
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Oct 8, 2012
I received this .obj model, and when I import it into 3DS max with default settings, it results in strange artifacts around the neck area.
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Sep 24, 2011
I have designed 18 "tee-signs" for our disc golf course. They print fine from Illustrator to various color printers. Now, we are getting them printed on a sticker which we will affix to a metal plate and post near the tees. The printer we are working with requested eps, so I saved a few in illustrator eps format and had him print them to test. They look great except for a few artifacts. For instance, for hole 8, around the "8" in upper left there is a very light shaded rectangle. This doesn't correspond to any shape that is buried in there. What it *should* look like is [URL] .... (note, this does NOT show the artifact). So, I printed the eps files myself, and I don't get those artifacts, but I do get a few random lines, and also the corners of the stroked fonts look like they are "selected", i.e. tiny circle.
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Nov 28, 2011
I'm coming up with a strange problem with some of my renders (see attached, the white lines around edge). This is using a daylight system, I used a HDR map for the environment and though maybe that caused the problem, but it did with two other maps in the environment channel as well.
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Jan 18, 2014
I have painting artifacts in Mudbox 2014 even when using the default models. I tried the environment variable "MUDBOX_PAINT_CONTEXT_FLUSH" as suggested on the Service pack 2 page.
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Feb 16, 2014
Occasionally, when I change between photos in Lightroom, something like this appears: [URL]
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I've just installed 5.3 from the Creative Cloud and have never seen this type of problem in any other application.
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Jan 21, 2012
On two occasions, I've encountered artifacts in my photos that I've converted from NEF (using Nikon D7000) to DNG format in Lightroom 3.6.
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Sep 23, 2012
I'm running Paint Shop Pro X. I create a 100x100 pixel JPG using only black and white, then use Alt-L->M->M to collapse down to a single layer, and save the file. When I reload the picture, the black and white are accompanied by several pixels in varying shades of grey. I'm guessing it's trying to apply an anti-alias effect when I load the image but I'm not sure. I've looked through the preferences but haven't found anything. How do I set PSP so it only saves/loads exactly what I created without changing any pixel colors?
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Apr 27, 2012
Version: PSP x4 w/ SP1
O/S: Win 7 Pro
I've been using x4 for several months, and in the past few weeks I've been encountering strange artifacts of the Crop tool. If I move the crop rectangle, it sometimes (but not always: see below) leaves a black line or lines of varying thickness where the rectangle had been. Here are a few possible clues:
- It appears to happen only with images that contain layers.
- An F5 refresh does not get rid of the artifacts.
- Flattening the image does.
- It appears, I think, to occur only when moving the crop rectangle (not resizing), but I won't swear to that.
- I have on at least one occasion been able to save the file with the lines as part of the image.
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Aug 15, 2012
When I use the TurboSmooth modifier I get artifacts that you can see in the upper red rectangle of the second picture. Is this due to the former welding process that I used or is it just a geometry issue?
Furthermore I get a shape that`s supposed to be a nice 'round' surface. Probably it's just putting in some more vertecies? (second picture, lower rectangle)
For better understanding I attached the before and after pics with mesh turned on.
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Oct 30, 2013
i have an obj with a layer in multiple channel, and when im increasing the ptex setup locally in some area, it seems to create artifacts in the Normalmap Channel. It looks like the mapping is broken only in this channel.
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Jul 5, 2011
When I turn on textures in the viewport, the display of some objects becomes really weird. Most times not even the whole model is affected but only parts of it. My first guess was that the noramls were corrupted, but turning on One-sided lighting and displaying the normals showed that they were absolutely okay.
It doesn't matter which render engine is used (Viewport 2.0, Default or High Quality) or whether the material is a Maya or MentalRay shader.
In the screenshot, only the head of the character is showing the artifacts. The used material is a Blinn with only the Diffuse (32-bit EXR; painted in Mudbox) plugged in for now.
How do I get rid of these artifacts?
Intel Core i7 920 @ 3.63 Ghz
nVidia GTX 560Ti
Windows 7 Professional x64
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Sep 17, 2011
I've making a light glow texture for a game with gimp. I've created the light with supernova effect, then i used a a black to white gradient layer with multiply, also another multiply layer is used to make the light fainter.
(there are more in the picture, these are mipmaps for game that are smaller and more shinier to get realistic glow effect).
In game it will be used for texture of an additive material, and a little artifact is noticeable if i watch carefully. These artifacts are noticeable too in flattened image if i add more lightness to it. This is what i'm talking about that halo around the light. But on mask there isn't anything like that.
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May 7, 2013
I don't have much experience in Illustrator, and I'm experiencing an issue with the 3D Extrude & Bevel effect. Namely, there are "artifacts" where the anchor points lie on the paths.
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Here's a sample:
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You may need to zoom in on this image to see them, but there are thin white lines that bisect the extrusion where the anchor points lie. There are also abrupt changes in the appearance of the extrusion at these same points. These anomalies don't appear in Illustrator, and it's only when I convert to an image or PDF that they show up.
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Is there any way to remove these artifacts using this effect? And if not, is there a different (better?) way to achieve the same effect?
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Dec 2, 2012
I am trying to bring back the sky in these photos without altering the bride in the foreground, or anything other objects, aside from the sky. Admittedly I didn't expose for the sky and the stop difference between the foreground and background is quite drastic. There are three pictures. First to show what the overall picture is and what we're dealing with (I've already "locally adjusted" the majority of the sky with method 2 below). Second picture is to show you a sample of the artifacts and fringing. The third picture shows a sample of the halo situation.
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I have tried two things:
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1) Gradient Filter - As most of you are already saying in your head, it is not appropiate in this scenario as it messes too much with the foreground (the bride intersects over some of the sky, so it would be neccessary to to drag it down over her), to the point where the drop in exposure is too intense to bring her back. So that doesn't work.
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2) Local Adjustment Brush - Tried everything with this thing, from auto mask on and off for both the painting and erasing afterwords, different feathering, no feathering, different brush sizes, etc. Nothing I have tried leaves me with a satisfactory final product, that is to say, no ringing artifacts, fringing or halos around the boarder of the bride where she meets with the sky. I am completely lost with what I should do! There is very little information available in other forum posts, and most of the information available is basic at best with suggestions like: "Turn on/off the auto-mask". This is becoming a growing irritation as I have this photograph and another one where I screwed up on my exposure and just burried the sky.
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Mar 27, 2013
I have some older footage shot on tape in SD on a green screen. I'm not sure of the process of how the vendor got it from tape to digital, but they told me it was the highest quality footage they had. When I pull it into Ae, it's got alot of crawly artifacts on his suit and hair, as seen here:
Actually the compression that adobe put on the image you can hardly see them in this image, but believe me they are there. What can you do with that? I've tried curves, to crush the blacks a little, and that works, but is there a better solution?
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Sep 17, 2011
I've blown up the attached image to 200% and cropped the most problem area -- this is only for online/RGB viewing, not hard-copy print. The hand/body part of this crop is from a frame taken with my Canon HV30 camcorder which only goes to HD resolution (1920x1080i) and due to low-light, it's got some bad artifacts. Mainly the green splotches.
I've already done as much Transform/Fix Interlace as I can up to the point where it can start losing definition.
Seems like the only thing as far as I know is to dive in and clone all those areas one by one using the clone took by borrowing "good adjacent territory" to clean up the mess. I've tried a close up "Replace Colors" but it's a bit too hit-and-miss.
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