GIMP :: Tilting Image - Pixel Color Changes On Boundary With Background Color
Nov 13, 2012
I'm attempting to tilt this image for use in a game im writing. I've been using Map Object and rotation (Y) but this then causes pixel color changes on the boundary with the background color. How would I tilt this picture without getting the problem?
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Nov 19, 2012
I have been working on colorization, by putting a transparent B&W image over the color background, all is good apart from when I do people and just want to show their eyes in color. Allot of the times eye color comes out wrong, for instance, when I did my daughter her eyes are blue but color came out brown eyes.
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Jul 10, 2011
I am pasting a color image onto a BW background. When I do this the image converts to BW. How do I prevent this from happening? I want to keep the background BW and the pasted images color.
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Sep 16, 2011
When adding a foreground image to a "flaming" blue background, I find that the image I add takes on the blue colors of the background, rather than keeping its original colors.
The linework and highlights (indeed, most of the detail) remain - they just all turn blue, heh. Like it's trying to camouflage itself. How do I keep the foreground image from "masking" itself to the colors of the background?
Both background and foreground image layers are in .xcf format. Could this be the problem? Do I need to change one or both to something like .jpg or .gif?
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Sep 21, 2013
First time using GIMP. Following the directions here: [URL] ......
Using, "Color to Alpha," I tried to select the background of my .jpg image. The background is white, the picture (logo) portion is silver. Because of the closeness in color, when I select white, the software selects the entire image to become alpha (transparent).
When I select the color of the picture, silver, I am able to select just the logo portion. How can I take the logo portion, which is now converted to transparent, and give it a black or transparent background, and then return the logo back to its former color silver. The logo is perfect, it is just that I recently switched my site from a white header to a black header and the image has a white background, so that does not look good.
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May 22, 2013
How I choose a color for any new objects I want to create. I've opened the toolbox with ctrl-b, which appears on the left side of the window. If I want to , for example, draw a red rectangle, I use the rectangular selection tool, then the bucket fill, and I don't see how to change the foreground color to red.
I've read elsewhere in the forum that there should be two rectangles somewhere on the screen that show foreground and background color, but I don't see them anywhere.
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Mar 4, 2012
How do I outline an image so I can change the background color without changing the image color ?
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Apr 5, 2012
I want to select a specific color from within the image, and change all similar colors within that image to a different color. In other words, after using the Color Picker Tool to select a color from the image, I want to take the selected color (and everything in the image that is equal to or similar in color), and change them all to a different color.
I tried using the Path's Tool to create an outline in the image, and changing colors that way, but it changes all the other colors in the selection I don't want to change. I just want to change all colors in the image/selection that are equal to or similar to the selected color. How do I do this?
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May 19, 2006
I created an image in PS and then went to Dreamweaver to code. I wanted a certain cell to be the same color as the image I created in PS so I set the cell to the same hex value as the one in PS.
When viewed in a browser though, the color is different.
Why?
What do I need to do to make them view the same on the web by using the hex value?
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Apr 2, 2013
I'm trying to create a soccer field. I searched on google images for examples to learn from and I found this one really good one. The grass looks great and is just what I'm trying to do. [URL] .....
I loaded it into to gimp to have a closer look, and all the artist has done really has used lots of different greens, usually a different color on each pixel. How do you think this person went about creating the grass? Do you they colored each pixel individually then saw what they had done and adjusted it until they got it right. Which would probably take a really long time. Or do you think there is a quicker way?
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Oct 11, 2011
I am currently searching the tools that I use in Adobe PS/AI in other products. I have recently downloaded GIMP as a possible substitution for Adobe PS/AI. But I have been searching the default (no plugin) tool box for anything that can do the Magic Wand Tools job. I just have not found it.
Magic Wand - select a pixel/color on the screen. Magic wand will then select all colors that correlate to your selection. I use the magic wand to kill backgrounds out of photos.
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Sep 22, 2013
I'm using a Canon 40D, Photoshop 6 and a Mac Mini running OSX 10.8.4.
I'm loading a RAW image from my Camera into Photoshop in 16 bit mode. As I understand it, my Canon 40D has a 12-bit A/D and RAW images have a 12 bit depth out of the camera. Loading them in 8-bit depth would lose some dynamic range/resolution, so I choose to load them in 16 bit mode.
Once the RAW image is in Photoshop in 16 bits, I scroll over parts of the image with the color picker to see the pixel values. This is where I lose understanding of what's going on. The color picker shows pure white values as 32768 and pure black values as zero. Apparently Photoshop (or Camera Raw) is shifting the 12-bit camera data up to fill the top 16 bits in Photoshop. But this is not entirely true! If it truly shifted all 12 camera bits into the 12 MSBs of the 16 bit Photoshop value, wouldn't the max white value be 65535?? If the 12 bits were shifted into the 15th bit, wouldn't the max value be 32767?? Where does 32768 come from? Also, what is Photoshop putting into the LSBs after it does the shifting?
I'm trying to do some averaging of lots of low light exposures using Linear Dodge in 16 bit mode. If photoshop indeed shifts the 12-bit camera values to the MSB of the 16 bit word, I'll eventually run into clipping when I sum my images. I'd have to go to 32-bit mode and that really slows down my system, almost to the point of uselessness.
What's going on in 16-bit mode?
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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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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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Mar 23, 2012
Earlier this week I mentioned on Google+ that I discovered something about gimp that was pretty huge, something that would change how I edit photos forever.
Since then, I've been determined to figre out how to boil this small bit of information, and show you just how much this can work for layer masking and isolating backgrounds, especially in the studio scene and landscape photography. I finally decided to simply do what I do best - record a gimp video tutorial using the method that I discovered, and share it with everyone.
Click here for the gimp video tutorial.
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Jul 4, 2013
When I color a the background of a photo to alpha it works just fine, I save it and export.
But when I try to open that same photo anywhere else the background is white .
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Nov 10, 2013
The one that lets me choose, for instance, white and black, not the eyedropper.
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Oct 25, 2012
How to install a certain background color in the program GIMP 2.6?I see by default only two colors - black and white.
The second question:*How to set mode the "overlap"?
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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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Oct 25, 2012
I have an image with an transparent background. I want to change all pixels that are not the background to one color. How do I do this? I can't select the pixels, they as arbitrariliy distibuted. I've played with threshold, but that's not working either. I tried Image-->Mode -> Indexed and then Use black and white palette, but that doesn't work either. I thought i would convert all non-transparent values to black, but instead its picking some threshold and making some black and others transparent. Example file attached.
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Jul 23, 2013
A while ago, I wanted to add a border in the background color around a layer. So, I increase Layer Boundary Size using the corresponding tool. So far so good. I even wrote into a script, combined with adding drop shadow, see [URL].......
Then, I bought a new computer. I knew it. Never update or upgrade.
Now, when I increase the layer boundary size, it does increase the size of the layer, but the "border" is now transparent. I know, I know, I can fill it up using the bucket fill tool, but first of all this is annoying, and second of all, I am really wondering: what happened? Why did it work before, and doesn't it work now anymore? I am baffled. I see three possibilities:
- The GIMP installation on my new computer has some global setting differently which I am missing
- GIMP was updated and this has changed
- this is a bug, or at least a quirk, having something to do with old computer running on Win7 and new computer running on Win8
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May 25, 2013
I have attached two images of a young girl. One image (the original) is the one with the busy background. The second image is the one that I have cut out. Now with the pattern I have inserted behind her, the image seems quite acceptable, but if it as a plain white background, there is still some areas around the hair strands that contain the bluish background. Also to get to the stage of my image, I had to delete some of the whispy hair strands to make it look acceptable.
My question is, do you think it is possible to cut this out any better. This was done using the Color mapping method, but I have tried a number of other methods, but cannot seem to keep the hair strands visible and still end up with some color contamination around them. Do you think you could try this image and see if it could be done better.
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Mar 28, 2013
I created a gradient using the gradient tool. If you look at the image I supplied, you can see a clear line between the white background and the -what is supposed to be- white bg color of the gradient. Why is this not smoother?
Using gimp 2.8 for mac.
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Nov 8, 2013
I am new to the gimp software and am struggling blending a photo into a solid color background.I cannot seem to get rid of the hard end of the photo. I have tried applying a mask then using the blending tool, but still cannot remove the line.
Blurring image, i'm just messing around to try... [URL]....
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Apr 4, 2008
How do add a background color to an image?
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Jun 2, 2006
My company has asked me to create a new logo for use in our web apps. Well, I used Photoshop to create the psd, then saved it as a png file, with a tranparent background.
After saving it, I put it on my server and viewed it on a test page. Unfortunately, no matter what I do in Photoshop, there is a background showing. Basically, there are two layers.
1) for the graphic-main body of the image.
2. Text above the image.
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Jun 19, 2013
I have 2 layers and I want to mask one through the other. I've attached a png showing what I want. I tried to attach an .xcf file, but it won't do it, which seems strange for a gimp forum. Anyway, one layer is the text (black outline) and one layer is a colorful background. In the xcf, the background layer is entirely filled with the colorful stuff, but I want it to only show through the interior of the letters (as shown in the png).
Attached File(s) at-final.png (9.55K)
Number of downloads: 2
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Jun 15, 2013
I am new to GIMP. I have a pdf with a neat picture and want to eliminate some text, essentially painting over it in the same color of the rest of the red background. Then I want to turn it into a powerpoint template with the first page the full picture but my own text and subsequent pages just a sliver of the picture at the side, with the normal ppt format and capabilities. I have attached the image.
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Mar 9, 2012
I have a scanned image which is black text on white paper. The paper comes out darker in some section because of scan. Is there a simple way I can make the off-white background white?
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Jun 17, 2013
Is there a way to change the color of the Vignette to match the page background color. It appears to that only Black is available at this time.
Is there a transparent vignette available anywhere .
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May 19, 2012
You know how when you're painting, you can hold ALT and it will pick a colour from the canvas? Well, for some reason, mine still picks up the colour but it sets it to the background colour instead of the foreground colour.
And when I actually select the colour picker tool, it will only select the background colour but when I hold Alt, it selects the foreground colour. Basically it's flipped where it's supposed to select.
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