GIMP :: Tile Based Images - Pasting Transparent Pixels
Mar 5, 2013
I have been using Gimp for a lot of "tile based" images, which feature layers composed of several "tiles" pasted into those layers. However, I just recently started creating transparent tiles, and pasting them.
One of the strangest things I have run into here is that I don't seem to be able to move my selection ( Floating Layer? ) if the opacity on the source pixels is 0.25 or less. Specifically, I do not get the usual "drag box" when I hover over the transparent pixels. Instead, I get the "anchor box" ( which seems to crop the pasted area before anchoring ). I tried this on a composite image with some more transparent pixels ( 0.25 ) and some more opaque pixels ( 0.26 ), and the "drag box" appears only over the more opaque pixels.
Why this might be happening? It could be that this is just context-sensitive cursor behavior which varies on transparency, and if so, is there another way to move the pasted selection?
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Oct 13, 2012
Whenever I have a selection in an image, I can move it around all I want and wherever I want until I anchor it, but when I open that same image again after saving it and then select a part of the image, I can't get my selection to move. Rather the entire image moves and leaves transparent pixels. How do I move selections and not whole images without leaving transparent pixels?
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Jun 30, 2012
How can I control the color of transparent pixels?
I save my image in RGBA (Windows bitmap). The RGB value of the completely transparent areas always turn completely black, and I want to control the color myself.
It may seem pointless, as the color is transparent, but I am using the image elsewhere (for creating mipmaps) where there is interpolation between pixels. Interpolating between 0 and 1 in opacity gives 50%, but the RGB part of the interpolation will mix with black, giving a dark halo.
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Mar 16, 2013
I have just started working with GIMP, after years of using Photoshop, which I can't afford anymore. Most of the tools don't look that different from what I was used to in PS, but I ran into a problem right away: I don't seem to be able to cut an image and then paste the cut image as a new layer on top of another image. I creates a new layer alright, but I don't see the image I want to copy.
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Jul 8, 2012
I want to know how to insert a customized/colorful font like the one seen in the attached picture (Darknet). How do I do this with a generic stock image using GIMP? I want to create titles for my books using fonts that are relevant to the book title.
Lets say I want to use a woman's face/body from one stock photo image and transplant it into another stock image (just the face/body even though there are other elements in the background.
Is this possible with Gimp? What I want to do is combine the two. For instance, a picture of a galaxy of stars and then paste the image of the woman onto it.
Attached File(s) cover - Darknet.jpg (88.12K)
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Dec 2, 2012
I have me riding a giant bird with a transparent background, with the pixel dimensions of 3000x3373 and I have a sky picture with the EXACT same dimensions (3000x3373) that I want to use as a background by rearranging the layers, but when I paste the sky background it pasts onto the bird picture at only <10% of the size of the bird picture EVEN THOUGH both images are the EXACT same dimensions.
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Feb 12, 2013
I opened a transparent PNG and exported the PNG to another file and unchecked 'save color values from transparent pixels' but about 20% of the color values in transparent pixels STILL remain in the picture when viewed in other programs that show those pixels!!! Gimp is NOT removing ALL color values in transparent pixels!
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Oct 14, 2013
I am completely new to gimp I have an image that is 8in x 6in. It was previously edited in Photoshop on another computer thats how I know the actual size. When I load it into gimp, the image size is in real life the same, I can take a ruler to the screen and it measures 8in x 6in at 100% zoom. However, according to gimps rulers, the image is over 11in x 7in. So I measured what is one inch on gimps ruler and it is actually 3/8in in real life. When I create a grid to overlay the image, through Filters-Render-Patterns-Grid and I make the settings to be 1in x 1in, it too shows up based on gimps ruler measurements. I have the ruler set up in inches but a gimp inch is not a real life inch, and this shows up when I scale the image to 8in x 6in it actually makes the image 5 1/2in x 3 3/4in in real life when printed out. How can I get gimp to display a real life inch and how can I get my images to print out based on real life inches.
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Apr 12, 2013
I am using Corel Draw X5. When I paste an Excel graph into Corel the resolution looks terrible. I can paste this same graph into most other programs and it looks fine. No matter what I do and no matter which special paste command I use I am not happy with the resolution of the graph - you can actually see the pixels. When I convert to PDF you can still see the pixels.
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Aug 13, 2011
Using the below steps causes a string of pixels to delete, and forum I visited [URL]..... with similar issues think it's a bug in PaintShop Photo Pro X3 13.0.0.253. I now have version X3 - 13.2.1.20 after updates.
1. Start a new image, with solid background.
2. Selection tool, rectangle, add/shift, feather 0, anti-alias on.
3. Draw out a 3" rectangle. Flood fill or paint in the shape with a solid contrasting color. Leave shape selected.
4. Go to Edit, Copy.
5. Go to Edit, Paste as transparent selection.
6. Place the copy to the right and up against the first shape.
7. Go to selections, Select None.
Take note that there is a string of pixels that is being removed. The above steps were posted by my peers in the PaintShop Photo Pro community forum I mentioned above.
What I’ve been trying to do is Paste As New Selection from one image into another, and pixels are cut off once I click to release the selection. I’ve tried different things, like expanding the canvas of the pasted image, and other things, but nothing has worked.
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Oct 15, 2012
2 days on GIMP. I need to adjust the clone tool so it's 1080 pixels vertical and about 20 pixels wide. I googled and searched, but I can't seem to find the right phrasing.
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Jul 9, 2011
I am working on an anime picture. I want to have two of the same images, one larger, with no background, and transparent. The other will be just the image. I have that done, but how do I get rid of the checkerboard pattern, it's difficult to work with it in the way. Also, both images move together, how do I stop that from happening?
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Apr 9, 2012
i have used batch process to make a whole bunch of photos one size. I need to create a single 'photo wall' jpg out of them in which they're all tiled, the long way of doing this is to obv open them all and copy, paste into the psd, then flatten, but thats really, really time consuming. If photoshop had any type of auto import & tile feature? I may have to do this a 2nd time with 1000's of images.
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Jan 10, 2014
Where is Tile Cache Size
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Mar 11, 2013
I just noticed that a large amount of RAM has been allocated for "Tile Cache Size" under GIMP preferences. What is tile cache size, and how much is generally needed?
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Dec 6, 2012
I have a 512x512 pattern I need to fill a 2560x2560 area that should go 5x5...
Do I have to paste it manually, or is there a way to get the pattern fill to actually tile properly? It's not.
Using V2.8.2
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May 7, 2013
I would like to delete all transparent pixels surrounding my irregularly (non-square) image. The TRIM function only trims to a square surrounding my image and not to the edge of the image itself. Is there a work around for this? I have looked around and haven't found one.
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Oct 1, 2011
I have an image (of many layers) which are mostly solid color, and solid alpha. 1-bit alpha, which is exactly what i want. However there are a few parts which are slightly blurry, where it fades between the two. this is causing problems in my end result. The common white halo effect.
I've tried the flaming pear solidify plugin, and it's totally not what i want. I don't want to fill everything with color or mess around with alpha channels. What i want to do is convert all partially transparent pixels, to either 0 or 100% alpha, with no middle ground. Essentially to make the image alpha binary. ideally some plugin which lets me define the threshold for one or the other would be nice.
I'm saving as an 8bit png, which naturally forces everything to be 1-bit alpha. this is unfortunately resulting in a lot of pixels being white where they show as almost invisible in Photoshop, so i want to fix this problem author side. Ideally i'd like to not mess around with alpha channels - i like the png format because i never have to touch the alpha channel, it's all done for me which speeds up workflow dramatically. I know i can save as a 24 bit png which will store the partial alpha information, but this also increases file size which is not an acceptable compromise for my purpose.
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May 8, 2008
I'm interested in doing a non-destructive "resize" of an image, whereby only the transparent pixels are traditionally resized and the non-transparent pixels remain the same size (but move relative to the resized transparent pixels).
As an example, imagine an image that consists of stars on a transparent background. If we were to do the above to this image, the physical space taken up by the image would increase (due to the resizing of the transparent pixels), but the stars themselves would remain the same size. In short, the stars would appear to spread out to fill more space.
If it helps, here's an illustrated example: ....
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Feb 18, 2013
I need to know how to make these pixels in the picture go away. I tried making the background black but It makes it look ugly. Is thier an eaiser way to do this?
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Feb 19, 2013
How do I make pixels transparent? I've looked all over Youtube and the internet, but I couldn't find any tutorials for this version,
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Apr 21, 2013
I am using GIMP 2.8.4, on a netbook running Windows 7 SE, with 1G RAM, and a 1.6GHz CPU.
Ever since I started to use GIMP 2.8.4, I get this "unable to read tile data from disk" prompt, and a tile in the picture is missing, frequently.
I attached a screen shot of the prompt.
Is this because of my hard-disk? or a known bug in GIMP 2.8?
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Sep 26, 2013
How can I convert all of the transparent (100% transparent) pixels in an image to a specific color?
Adding a color layer below is not the solution I'm looking for, because some pixels are partially transparent and I don't want to modify those ones.
I use the "select color range" feature alot to do things with specific color pixels, but that feature doesn't seem to work in this case.
I am creating bitmap images for a program, where the transparent parts of the image need to be represented by a specific color.
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Aug 19, 2013
I have two layers and some of the pixels in each layer are the same. I want the difference on the pixels that are not the same and for the pixels that are the same I want the result to be a transparent pixel. I have tried using the difference blend node but for pixels that are the same it returns black as the result not transparent.
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Jun 4, 2012
I'm making graphics for a 2D game. One important part of performance optimisation is getting rid of unnecessary alpha sorting. I don't want partial alpha unless i have a specific need for it. I'm wanting all my images to be 1-bit alpha only. That is, a pixel is either completely opaque, or completely transparent - never inbetween.
I'm not sure how to do this easily in photoshop. So far i've come up with a workflow that fills my needs pretty well, except that it seems unnecessarily long and complicated:
1. Place the graphic on a transparent background
2. Use the magic wand to select transparent space, using the tolerance value to define the cutoff point
3. Select Refine Edge, and shift the contrast up to 100. For some reason if I don't do this, photoshop will often "partially select" a pixel, giving undesired results.
4. Hit delete. This removes all pixels that were selected (transparent enough to fall within the tolerance)
5. Select > Inverse. Shifts my selection to everything except what i just delete, ie the actual graphic.
6. Using the color picker, i pick an appropriate neutral color from the main body of the graphic. or i use black.
7. Using the pencil tool, with the draw mode set to Behind, and with a colossal radius, i draw on the graphic. This fills in all the remaining partially transparent pixels with the solid colour that i chose
This workflow does the job perfectly for me, and exactly achieves my intended results. but i can only do it on one layer at a time (i usually need to do this on about 18 layers, for a character graphic).
So what i'm looking for here, is some way to automate this process. The overall point of it really is forcing all pixels to "take a side", becoming either fully transparent, or fully opaque. Is there any better built in way to accomplish this? or a plugin? I'm open to commercial tools and plugins, even.
Probably relevant, I'm using photoshop CS5
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May 13, 2009
This is probably really basic but... I'm a printer and only really use Photoshop for changing RGB to CMYK, clear cutting (with Vertus fluid mask) and things like that. However a lot of the photos I have to clear cut have been done already but not saved (or given to me to use) with the transparency still there. Is there some easy way to turn all the white pixels into transparency? Obviously you'd have to mask any white pixels in the image you wanted to keep. A sample is attached.
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Aug 9, 2006
Is it possible to change all white (#FFFFFF) pixels to transparent? I am using PS7.
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Mar 16, 2009
I have an image that has corners with partially transparent pixels. I would like to make a mouse-over image of this with the same same dimensions, only a different color.
How can I color this image a different color and still have the partially transparent pixels around the edge. Obviously, I would like the semi-transparent pixels to be semi-transparent of the new color.
I'm still not allowed to use the link vb, but let's try this: ....
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Mar 16, 2009
I have an image that has corners with partially transparent pixels. I would like to make a mouse-over image of this with the same same dimensions, only a different color.
How can I color this image a different color and still have the partially transparent pixels around the edge. Obviously, I would like the semi-transparent pixels to be semi-transparent of the new color.
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Mar 25, 2013
This black oval appears when I go to front view after 'Alt X' to make the cube transparent, but it doesn't occur at an angle, only when in front view.
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Aug 31, 2012
I've been using Tile to create an array from a jpeg image to use as a background for a website I'm building using Weebly. The original images display fine in Weebly, and when I use Tile to create the array the resulting image looks flawless in GIMP and in the picture viewer on my desktop. However, when the image is uploaded to Weebly it displays as though the original layer has been duplicated in GIMP and tiled manually and badly, i.e. leaving white space along edges, incorrect alignment of tiles.
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