GIMP :: Background Color To Alpha
Jul 4, 2013When 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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GIMP :: Changing Background Of JPG Image Using Color To Alpha
Sep 21, 2013First 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.
Photoshop :: Background Color Of Alpha Channel
Jul 13, 2005I creat an alpha channel it shows up as white on my Photoshop Version 6 while my friend's alpha channel comes up in black on Photoshop CS. Obviously each is a default setting. How do you change the alpha channel color from white to black and vice versa.
View 5 Replies View RelatedGIMP :: Color To Alpha With Exact Color?
Feb 3, 2013I have a dark gray triangle alongside a pure white triangle in a square GIF image. I want to convert the white triangle to alpha and leave the dark gray triangle completely opaque. When I use Color --> Color to Alpha, however, I see the checkerboard pattern extend over the gray in addition to the white.
1. Does this mean that the gray is being made translucent?
2. If so, how do I set only one the white to alpha (at 0% opacity) and leave the gray at 100% opacity?
GIMP :: Transparency (Alpha To Selection) - Remove White Background From Images
Aug 20, 2011For quite some time I've been trying to find the best way to remove a white background from images. I've checked out the sticky thread on this forum and as my image isn't of great quality and because it features quite a lot of white that won't apply.
Recently I found this tutorial which is supposed to work great (as seen in the comments). However, I think that because of a GIMP update that won't apply anymore somehow. I was hoping you guys might know what was causing it.
Everything works well until I get to step 7, where I have to select to Alpha. There it selects just the outlines, but my selection includes inner parts of the image, not just the background. And then after I invert and delete, the white that remains still has transparent parts that show up on the upper layer. So, am I doing something wrong with the Alpha to Selection, is that tutorial updated or is there a better way to remove the background from ie. a logo with just one background colour which isn't of great quality.
GIMP :: Color To Alpha Leaves Some Pixels
Sep 13, 2012I had a .JPEG of a leaf photographed against a white background. When I went to turn that white background into a transparent alpha channel, it seemed to work okay....except for the fact that when I then went to select the new alpha channel via the Fuzzy Select Tool, it wasn't selecting all these newly transparent pixels.
View 6 Replies View RelatedGIMP :: Color To Alpha Doesn't Work?
May 31, 2012I am using the latest version of GIMP on my windows 7 pc but color to alpha doesn't work. At my pc at work it works fine but i use windows xp there and i have ghostscript and python installed.
Or is it something completely different?
GIMP :: Which Colors To Use When Applying Alpha To Color?
Mar 9, 2012I don't understand how you can know which colors to use when applying "Alpha to Color".
Here are a few images I have and what I've done so far:
Here are my original images
GIMP :: Light Box Photography - Color To Alpha
Oct 26, 2012I have been doing light box photography, but I want to get that pure white background as product images usually have.
My background is a light grey.. Using the wand tool, I was able to get close - but far from close enough.
[URL].....
What's the right method, to turn every thing around the dime, white?
Here it is before the wand,
[URL]......
GIMP :: How To Change Existing Values Of Color And Alpha
Dec 4, 2013I have a plain rectangle with overall c09300c0 RGBA levels.I want to change the alpha channel value from c0 (193) to some other value, for the whole image at once. Or some other color channel.
How can I change the absolute value of a channel ? The color menu has only relative adjustments.
GIMP :: Black Alpha Destroys Color Information
Mar 24, 2011I have a texture for an object that will be rendered. The RGB for the texture contains diffuse color, and the Alpha channel contains a special parameter for the shader. The value for the parameter is 0 for 99% of the pixels.
In my XCF I have diffuse color on one layer, and the special parameter on another layer (as a greyscale).
So I copy the diffuse layer and call the copy Final. Then I create a layer mask on the parameter layer using the greyscale value. I copy the layer mask from the param layer to the Final layer, and then I apply the layer mask to Final, which should simply write the mask to alpha.
I look at the channels window to be sure, and alpha is written correctly, BUT everywhere that alpha is black THE OTHER THREE CHANNELS ARE ALSO BLACK! I can't fix this! What do I do? I even tried exporting to see if it carries through to the output image, and it does!
What's more, I tried to trick it by putting a very low value (like 1/2) in the pixels that are supposed to be 0 in alpha, and then I get an even weirder effect, wherein most of the color is kept, but some pixels color information is trashed anyway. Is there an export mode which will tell GIMP not to trash the color information on fully transparent pixels? Or better yet, can I tell it that alpha is not transparency?
GIMP :: Eyedropper Tool In For Instance Color To Alpha Dialogue
Nov 26, 2013I'm on MacOS 10.9 (Mavericks). Using GIMP 2.8.8 (lisanet edition).
GIMP has been installed for many years on my computers, but first since it runs natively (without x11 or xQuartz) have I finally and entirely switched to GIMP for my raster graphic work.
I really like GIMP and I'm working on expanding my knowledge and respect this excellent programme very much. There are of course a couple of oddities when you are used to Photoshop (until 3 months ago). I'm getting there. Though one issue sticks out:
The use of the eyedropper tool for example in the Color to Alpha Dialogue. First of all I'm aware about the difference between the Color Picker (set colour from image pixels) in the toolbox and the eyedropper. I'm writing here about the latter. It simply doesn't work at all. When I open Color to Alpha... and then click on the color field (by default it's white #ffffff) the Color to Alpha Color Picker opens. When I select here the Eyedropper tool (Click the eyedropper, then select a color anywhere on your screen to select that color.) the following scenario happens: the cursor doesn't indicate a particular function (stays as standard pointer) - when clicking anywhere on my screen both dialogues, Color to Alpha and Color to Alpha Color Picker disappear (respectively they slip behind the main GIMP interface). I can't select any color! And when I manage to get the two dialogue windows back into focus, I have to wait a certain amount of time before any pressing of OK or Cancel shows any response.
Sometimes a random color gets selected but this is beyond my influence.
I guess it's a weak spot of the new native GIMP without any X11 wrapping. The windows managements has several weaknesses (i.e. GIMP/Hide). I also thought that it might be caused by the Single-Window Mode. But even without that the problem remains. All in all it's a very important function and without it the workflow involved gets very tiresome.
GIMP :: Define Alpha Channel Color - Making Image Transparent
Apr 20, 2012There seems to be tons of threads on how to make a transparent image, but I haven't been able to fine one to do one specific thing.
How do I set the alpha channel to be black? I want to have a black background on a png file, but I need the black to be transparent to things behind it on a webpage.
GIMP :: Tilting Image - Pixel Color Changes On Boundary With Background Color
Nov 13, 2012I'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?
View 4 Replies View RelatedGIMP :: How To See Color Palette To Change Foreground And Background Color
May 22, 2013How 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.
GIMP :: Isolate Background Using Color?
Mar 23, 2012Earlier 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.
GIMP :: Where Did Fore / Background Color Box Go
Nov 10, 2013The one that lets me choose, for instance, white and black, not the eyedropper.
View 1 Replies View RelatedGIMP :: Install Certain Background Color In 2.6?
Oct 25, 2012How 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"?
GIMP :: Change All Pixels Not The Background To One Color
Oct 25, 2012I 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.
View 4 Replies View RelatedGIMP :: How To Put Transparent B&W Image Over Color Background
Nov 19, 2012I 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.
View 6 Replies View RelatedGIMP :: Pasting Color Image Onto BW Background
Jul 10, 2011I 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.
View 2 Replies View RelatedGIMP :: Add Border In Background Color Around A Layer
Jul 23, 2013A 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
GIMP :: Cutting Out Background - Color Mapping Method
May 25, 2013I 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.
GIMP :: Gradient Isn't Smooth Enough Transition To Background Color
Mar 28, 2013I 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.
GIMP :: Image Takes On Blue Color Of Background
Sep 16, 2011When 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?
GIMP :: Blending Photo Into Solid Color Background
Nov 8, 2013I 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]....
GIMP :: Mask Layer On Top Of Another (Black Outline / Color Background)
Jun 19, 2013I 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
GIMP :: Eliminate Some Text Painting Over In Same Color Of Rest Of Red Background
Jun 15, 2013I 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.
View 1 Replies View RelatedGIMP :: Change Background Color With Black Text In Foreground?
Mar 9, 2012I 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?
View 1 Replies View RelatedGIMP :: Adapt Background Photo To Match With Black Color Text?
Jun 5, 2013I did put a real photo in the background of my website to fit entire page. So the text of my webpage is black, and sometimes other colors. So what happen is that some times the text is hard to read when it come on top of dark places of the photo (for example hear of people). So i want to adapt the photo to make it more unicolor, more whiten (increase whiteness) so the black text will appear even better.
What tools and filters in gimp that give me this ability to do that ?
Revit :: Cloud Rendering - White Background / Alpha Channel
Jul 17, 2012I'm attempting to render a series of images in the cloud and my plan is to take these images into Photoshop so that I can apply a background from an image I possess.
To do this I need the background to be a plain white background, export as a TIFF or PNG, then add an alpha channel in Photoshop. The problem is that whatever settings I apply in Revit, the cloud rendering always gives me the standard grey / blue horizon background. I have changed the render settings using the render setup, through the view properties, through the graphic display, still no joy....