Photoshop :: Brush Banding/pixel
Jul 29, 2009
i just opened ps, and was about to work on some client stuff.... same as ususal. hit the brush tool... no different from yesterday, same default settings, and my brush started doing some weird patterns... as if all the smoothing on the brush was gone. Looks like a bullseye when i apply the brush a number of times in one spot. (brush hardness = 0). very strange. I couldnt find anything wrong, and i didnt change my settings from the day before...? So i just updated my display drivers for my nvidia 8800 gts... and same issues... only with the brushes... gradients are still smooth? heres a screen shot of what im getting.Â
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May 28, 2013
you can see what i mean in the following picture examples.
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Selecting a brush (any 1 pixel) brush
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shows my selection . Drawing a straight line
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Zooming in to the line (600%) you can see i can draw a marquee through half of it ...
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No matter what 1 single pixel brush i use this will happen... no matter which computer i use cs6 on and different copies of the installation.  Anyway have any insight into this? frankly... it's somewhat limiting that i can't use the brush for stroking a shape if i need a pixel line and yet soft curves that a pencil won't get you.Â
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Sep 10, 2011
I am getting strange banding when applying the X4 warp brush to a tiff file out of lightroom. Never seen anything like this in X2, X3 or adobe 16 bit brushes. pic below (win 7 pro, i7 950, X58 MB, GTX460)
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Oct 19, 2013
I am able to create my own customizable brushes BUT I want more, WAY more. I want a brush capable of picking up a pixel or a few and transform it/them into a bokeh, JUST WHERE they are.
The only tutorials I found are about making brushes, customizing them to do what ever but they create the same thing all over even if different sizes, scattered or whatever. Nothing about being able to have one that selects what is underneath.
Blur radius does not work, I tried and tried and tried again. If I still have hairs it because they are too short to pull and if the walls are still standing around me it is because I am wearing a soft pillow to protect them against my aggressiveness toward them (my wife was tired of paying for repairs).
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Sep 16, 2012
When I set my pencil brush tool to 1px, to make some pixel art, it is not 1 pixel, it adds an extra pixel to the left. I dont know why this happens, but im the height IS 1 pixel, but the width adds an extra pixel to the left or right (mainly left). even when i position it ExACTLY in the center of the grid, which is set to 1px by 1px, it STILL adds an extra pixel
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Dec 11, 2013
this is probally the most noob question ever but I can't get a 1 pixel brush, 3x3 is the smallest brush I can get
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Apr 11, 2013
When I crop a picture Pixel Demensions become 6 bytes Width and Height 1 pixel each. I can no longer see the picture. How can I fix this?
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Apr 22, 2013
I have two art objects on two layers. I want to match to the pixel the two objects that otherwise could be exactly the same but one layered object was imported slightly smaller.
The scale tool has good scale handling, I just want to measure the tool spots to the pixel to gain an exact scale size factor and match sizes.
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May 12, 2007
It blows my mind that somthing this simple isnt all that simple. I used the eyedropper tool to slect a color from another photo, then used the brush while fully magnified to change the color of each pixel.
It was coming out a weird greyish color, and I noticed that if I clicked more than once, it got darker, but so did the pixels directly around the one i was editing. So, i copied both pictures, loaded them into paint, and went to town.
It worked, but then when i copied it back into photoshop, it had a black background (there was no background in the original pictures) around the sprite I was editing. I tried to use the magic wand tool to get rid of it, but it took parts of the sprite with it, so...
Is there any way that I can edit the color of a single pixel (or hell, even a group of pixels if they share the same exact color would be nice...preferred, even) accurately? If not, what program could I use that would keep the transparent background?
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Feb 19, 2012
Via VBA macro, some way of getting RGB/CMYK color values of a bitmap pixel by pixel?
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Mar 13, 2011
I managed to remove the background, of an image,(A whit background) and put the image on top of a transparent layer. made a transparent image. When I place this image over a light color background, it looks fine, but when I place it over a dark color background, the edge of the image looks very rough and dirty, I think it's because some of the anti alias from the original image, how can I make it a clean image without going to delete pixel by pixel?
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Jul 26, 2012
We are developing an application using functionality of Gimp´s channel mixer with java.
Our problem is that we don’t Know how channel mix works exactly for transforming pixel by pixel in Java.
For example,
We have an image an do on it the next mix:
Output Channel = Red
Red=200.0
Green=0.0
Blue=0.0
For simulate that, we transform all pixels with Red Component *2 and 255 (maximum) if is greater.
Our problem is:
Output Channel = Red
Red=200.0
Green=60.0
Blue=0.0
How can I simulate that?
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Dec 6, 2012
I'm using Photoshop CS5 and as you can see on the picture below, when I set my grid line to every 1 px, grid doesn't match canvas pixel size.
Now I'm not able to draw sharp shapes using pen tool because even if I hold shift key everything gets blurry.Â
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Mar 3, 2008
After playing with a new install of CS3, I see that there is banding in high value pixels. Yet when I open the same file in CS2, the photo is fine. I use a CRT. On my laptop, both versions work fine.
If I make a 16 bit untagged file with a black/white gradient, there are unacceptable bands throughout.
I've tried all of the options from the Color Management Policies: Preserve Embedded profiles; Convert to working RGB; and OFF. My working space is Adobe RGB.
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Apr 19, 2005
This is kind of a stupid question b/c I forgot how to fix this, but how do you correct banding on a gradient applied to a web GIF image.
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Sep 6, 2007
I'm getting some heavy JPG banding in my pictures and have noticed that it crops up more in photos where I apply a vignette.
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Nov 6, 2013
I recently started noticing very bad gradient banding when using the gradient tool. It's specifically bad when using darker colors. I also noticed when using the blur filter I get banding with dark colors also. I am working on 16 bit document.
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here is a screenshot of what I am seeing. My color mode is RGB Color 16 bit Color profile SRGB
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Here are my computer stats
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iMac
27-inch, Mid 2011
Processor 2.7 GHz Intel Core i5
Memory 16 GB 1333 MHz DDR3
Graphics AMD Radeon HD 6770M 512 MB
Serial Number C02H96AUDHJP
Software OS X 10.8.5 (12F37)
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Nov 13, 2013
airbrush banding, as well as gradient banding? I have my brush set to transfer, pen pressure and smoothing. It seems when I try to lay down a smooth gradient with the airbrush I get this banding effect. If I brush over the same stroke there's a dark spot that forms like a bullet eye that gets bigger and bigger. It's the same with gradients.
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Mar 10, 2008
Im using PS CS3 with a wacom tablet on an 20 inch alum iMac (the display is CRAP). Im having banding issues when using the airbrush on a dark background. Maybe someone can help me out with this.
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Apr 6, 2008
Created a new 16 bit RGB image for use within Premiere Pro with an alpha channel enabled. When viewing within Photoshop if I zoom in on the image you can clearly see banding.
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Mar 22, 2006
i'm working on a 16 bit psd photo file. i'm using an adjustment layer with a layer mask. when i draw a gradient or use the eraser tool on the layer mask i've been noticing a banding pattern.
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Feb 18, 2008
I'm new here and I'm hoping someone can help me shed some light on a problem we're having. We're seeing a lot of banding around our subject when using curves and/or vignettes. This seems to happen most frequently if we're applying more than one curve to a shot and using masks to affect only part of the image with the curve. Has anyone else had this problem and managed to overcome it?
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Aug 23, 2012
I have:
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Windows Xp Service Pack 3
4GB RAM
Geforce 560ti
PS CS5 extended
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I am a photographer and submit the images to an agency.They inspect images at 100% for technical quality.
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While preparing an image today, I used a layer mask in the levels adjustment.I used brush with 0% hardness and just clicked once with black color selected.But I found some severe banding.I alter clicked on the layer mask and found the same banding at 100%.I have not noticed such a thing till date.
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I did try copy pasting the layer mask to show it to you guys, but when I saved it as jpeg and viewed the jpeg file, there was no banding.However I can see the banding even if view the jpeg of the image above.I tried on another images too but the same problem.It used to be very smooth before.Have made no changes to the default settings.Tried with both OpenGL on and off.
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Why does this happen?
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May 30, 2012
i`m trying everything to get the smoothest softest blends possible in photoshop, and I think its possible because Ive seen a lot of digital graphics where it is really nicely done, but mine is a disaster.the banding and artifacts in it are disheartening. whether with brush or gradient, even on small areas like 7 to 12 inches. I'm not talking about poster size just average A4 pages being painted.
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I've used the brush tool on the softest setting, and a wacom bamboo tablet, with pen pressure determines opacity seeming to produce the best results, low opacity to try build it up, opaque etc, and very close tones, as close as possible, and the gradients don't fair much better,
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is this the way it is or is there another technique to get smooth blends with the brush or gradients? the colour picker seems to have smooth silky powdery blends, I thought it would be possible to paint like this with the airbrush in PS but it doesn't produce this kind of softness.. of course the colour picker is code generated not with a brush,,
-here the brush is used on 3 types of settings, the last being with pen pressure determines opacity producing better results, but not what I expected.
-here I used a large soft brush which was larger than the oval, and a few swipes across but I can still see artifacts or shapes in there,
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Jun 23, 2013
Using CS6, I created a sky gradient on a new layer, then imported some photos to other layers for a composite. Then I noticed horizontal banding of varying widths in the sky area of the gradient. When I use the Move Tool to move the gradient layer around, the bands move along in a fixed position, so it's not my monitor. When I Option-click on the gradient layer eyeball icon to make just that layer visible, there is no banding on the screen, just a smooth gradient as it should be.
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I have never noticed this happening before. What causes it and what can I do about it?Â
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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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Oct 19, 2012
I have a problem with color banding in Photoshop CS6 while zoomed out, even though I am working in 16 bit. Here is a crop of the same area of a .psd while open in Photoshop CS6 (left) and in Illustrator CS5 (right).
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The banding is quite apparent in PS while not present in Illustrator. At 100% zoom there is little banding in PS, and converting to 8 bit makes it look markedly worse. However at 25% zoom (which these crops were taken at) converting to 8 bit makes no visible difference, making me think that Photoshop's zoom is working at 8 bit for some reason.
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Since the image looks fine in Illustrator I'm pretty sure it's not a problem with my display, or graphics card/driver. I've tried changing the color profile (currently set to Adobe RGB) in Photoshop without effect. I've also tried changing the 'Graphics Processor' level in Photoshop, including disabling it entirely, as well as reducing the cache level to '1' without effect either. I'm not quite sure why Illustrator is able to handle the image so nicely at all zoom levels while Photoshop introduces all this banding.
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Dec 3, 2007
I did something with photo , but when I put it on web site - it doesn't have the same quality . it has gray circles in it .
I save the photo as jpg file , the size is 500*600 px and the weight is 120 kb .
I just took a photo of mine and add her some filters like the lens filder and spotlight...
I attched the photo (the way she look on the web) . in the original it doesn't have the gray circles in it .
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May 8, 2008
Just upgraded from CS2 to CS3: I always shoot in RAW, then zoom in 100% in RAW converter to check quality. I also work in 16 bit and using CS2 the tonal gradation is brilliant. However the same photo opened with CS3 Bridge shows banding when I zoom in. Same happens when I convert and open the image in Photoshop. Great in CS2, banding appears in CS3.
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May 15, 2013
I've been using Adobe Photoshop CS5 for the last two years and I've started getting a strange banding effect on my prints. Photoshop seems to be the only application that is effected. I print on a large format printer, my drivers are up to date, if I print a smaller size and fit to page (test print) the print is ok. When I print to full size I start having the problem.Â
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Mar 24, 2013
When I'm viewing photo at zoom lower than 64% banding kicks in. At zoom higher than 63% everything smoothed out. It's giving me a hard time when I'm trying to retouch big files at lower magnification because actually I cant know until I zoom in do I'm removing something what exist or actually not!
I know it's an issue regards do displaying preview of 16bit image as 8bit image. I was checking this in many ways and it appears only in 16bit mode. I'm quite a quality maniac so I always retouch in 16bit mode and ProPhoto color space to give myself a bit more room to play with post production.
Please take a look at snaps made using windows snipping tool. All images are in ProPhoto color space but I also have tried this in RGB and it looks quite the same.
1. With banding.
16bit mode
ProPhoto color space
Zoom: 63%
1. Without banding.
16bit mode
ProPhoto color space
Zoom: 64%
I'm on windows 7 ultimate 64bit, 64GB memory, Intel I7 processor, geforec GTX680 GPU.
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