GIMP :: 1 Pixel Wide Line With Feathering
Jun 12, 2012
I'm trying to create 1 pixel wide borders for some web buttons. I've tried to use the GIMP path tool to do this but I can't figure out how to get it looking right. See attached image.
1 - copied from a button I found on a web-page. This is what I want - single pixel horizontal and vertical lines with feathering on the curved bits.
2 - path that I used to generate the images on the right.
3 - 'Stroke Path' with 1px brush size & no antialiasing. Corners are not smooth.
4 - 'Stroke Path' with 1px brush size & anti-aliasing. Straight lines are too fuzzy as they are 2 pixel wide rather than 1.
Is there a way to do this with the path tool or any other way with the GIMP?
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May 4, 2011
I have got a logo that is 451 x197. It has a resolution of 72 px. I am trying to increase the resolution so that I can use the image for business cards and letterhead.
I need for the image to have a width of about 2500 pixels. If I scale the image to 2500 pixels the edges look pixelized or blurry.
My question is: Is there a way that I can make the 471 px logo stretch to 2500 px and still have sharp edges?
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Feb 3, 2014
I have some picture look like a line of graph, but it has only one-pixel line width (for an example in attach file) and it can't be seen when I put it in presentation slide. So I want to make line thicker, like 3-5 pixel width. How can I do this?
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Jun 7, 2013
When I take a 1800 pixel wide image and resize down to 150 pixels it becomes pixelated.
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Nov 6, 2012
I have a picture of a black dog which I want to merge into a black background as seamlessly as possible. I created a layer mask and blacked out the photograph area behind the dog so that the black of the layer beneath shows through. What I want to do now is somehow feather the edge between the dog and the black background to melt the two together rather than having a sharp crisp edge. Can I somehow feather the edge of my layer mask to do this quickly and easily or do I have to do it manually using the smudge tool etc?
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Sep 7, 2012
I have some round PNG icons where the pixels are either fully opaque or fully transparent. They look fine on a white background but are no use on a dark background.
E.g. see the orange icon attached. Ideally, the edge of the round icon would be semi-transparent orange so that it would merge nicely into either a light or dark background.
So, is there any tool in the GIMP that can correct the feathering? I.e. subtract the white from the pixels to leave a semi-transparent orange.
I.e. convert...
pure-white -> fully-transparent
light-orange -> semi-transparent fully saturated orange
fully saturated orange -> leave unchanged
temp1.xcf (Size: 6.24 KB / Downloads: 27)
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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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Oct 1, 2013
I have a wide background image for the top of a site I am working on, which I am attaching. Basically, the original creator of the image faded the gradient from transparent to the background color of the site. The "shape" of the gradient is where I am having trouble. I tried even using the circle selection tool, then doing an inverted selection to force an oval shape, but that is not working great for me either.
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Feb 25, 2011
What I need to do is, take an image, split it into strips about 1/4 inch wide but have them so I can put them back.the actual size of the slices can be varied but each slice has to be the same size across the whole image.
is there a way to do this using GIMP on a mac?
I did see a add in but it was for windows only.
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Sep 1, 2012
I have an image that is quite small, cropped from a larger image. I want to enlarge it to 317 mm wide keeping it in proportion.
Using the scaling tool I changed to mm and increased width to 317mm this leaves me with a 'window' into the top corner of the image.
I then used 'fit canvas to layers' and the canvas increases in size ok but it is empty (little grey squares) except for the top corner showing the small window into the image!
If I click on it with the resize tool I can see the whole image enlarged but as soon as i click on the 'scale' button it vanishes again and leaves the small window again?
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Nov 4, 2013
I was working on an image, it was quite big, 7000 px wide, 6000 tall but only 5 quite simple layers, the .xcf is 7.8MB.
All of a sudden after pasting from another .xcf file (which I had just10+ times with no similar result) I moved the pasted part, the image was pretty much finished and I went up to click file>export and everything between "open recent" and "quit" in the file menu was grey.No chance to save or export and it appears half an hour of work lost.It was as if the file menu didn't think I had a file open, but if I scrolled across to the filters menu for example, they were available for selection which they are not when you have no image open. I could edit the image and change layer visibilities and do what I wanted to the image - except save it. I had flash backs to darker days of shareware version of lesser softer titles on proprietary systems. In a moment of frustration I hit the little "x" to resign for the night and it warned me to save before closing.. I hit save as the only option was to overwrite a file I didn't really want to overwrite but I did and then wrote this.
It's 2.8.6 running on an up to date ubuntu 13.10 on a high end PC.
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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 8, 2005
how to delete the one pixel line which surrounds Illustrator JPG and GIF images in the Save for Web dialogue box. I can import the image into Photoshop, but I'm trying to retain a bright red color on an image for the web (#FF000), and the color becomes darkened in Photoshop.how to get rid of that one pixel line?
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Jun 6, 2011
I didn't want to migrate to Pro 6 when it was released, I was stuck with Xtreme Pro 5 (5.x something) for years. I got myself Designer Pro 7 some days ago and it's much faster, so decided to give it a try.
I've designed tons of things with the product family and I have my habits. OK, some things are different here, most can be customized, it's just a bit annoying/frustrating process, but anyway. Thing I cannot modify (nor can find registry hack for it, I already had to tackle registry for end line selection blobs, that's crazy) is following: for the way I design, I really have need for constant use of zero width line.
Know about zero width line, I've been using successfully for ages and when doing freehand drawing, it's much easier for me to have zero width, then convert it to what's necessary (or create shapes out of it).
However, if I put it to 0, and I start new freehand line, it goes to 0.5pt by default. I can start line at 0.5pt, then get it down to 0, and it works, as long as it's the same line. However, as soon as new line is needed, it reverts back to 0.5pt. If I select 0.1 (manually) or even 0.01 or whatever, it does work. But not with zero. Any chances to modify that, either in Xara or in registry?
I like the antialiased lines, for my own reasons and makes it easier for me to design.
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Oct 10, 2013
When I select Align to Pixel Grid in the Transform Panel, I see line weight changes occur. I try to change the line weight in the either the Stroke or Appearance panel and it will not change, no layers locked, how to change the line weight?
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Aug 30, 2010
The problem is almost prehistoric. It dates from the very beginning as far I can tell... whatever image you like to export and whatever its format: png, gif, jpg, there is always one grey pixel border line at the edges. This happens when AA is activated (and deactivate it is not an option if you know what I mean).
I have been reading some threads and no matter what I do: Exporting with or without the background or changing its color... it's always happening.
I Have now installed the trial version of Corel Draw X5 (sp1 included) as I do with every release in order to check out if the problem persist... but no luck for me: nobody seems to be taking care of this issue. I really don't know why Corel is bumping off some many (potentially) buyers like me and many others... why Corel is keeping this issue unresolved year after year, release after release?
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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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Dec 7, 2011
I am trying to take a jpg file of an image, and write each RGB pixel color's value into a 3 component integer vector corresponding to the RGB components of the color for that pixel. For each pixel in the jpg, I wish to write the corresponding 3 by 1 integer vector into a matrix after which I plan to do a SVD decomposition of the newly constructed matrix to do an image analysis.
Any plug-in that allows one to efficiently iterate through each pixel in a jpg, and convert the pixel data to a RGB integer vector, and say write to a file?
Specific Details: I am using gimp 2.6 as my image editor, and wish to collect all the RGB 3 by 1 integer vectors (where each 3 by 1 integer vector corresponds to RGB color of exactly one pixel in the jpg image) into a matrix of integer so that I can do a reduced SVD decomposition of that matrix to analyse the pixel data: I wish to compare two similar images by using the SVD decomposition of integer matrices corresponding to the two images saved as jpg files pic1.jpg and pic2.jpg.
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Nov 24, 2013
I have a picture, I am looking to take one pixel of color and copy it nearby over another pixel. How do I do this? try to inform me about the exact brush and size I need to select as I cannot figure out the correct combo to do so.
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Jun 20, 2012
I need to look at the pixel intensity of a gray scale image to write some code. I have used some trivial softwares like paintshop pro earlier where you can see the pixel intensity being displayed along with the co ordinates of the pixels as you slide your mouse pointer across. In Gimp 2.8 for windows, i can see the co ordinates but not the intensity. My image is a grayscale image.
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Jul 25, 2013
I have an image which i would like to measure the pixel intensity along a specific vector. I do not want the total pixel intensity for the entire image, i would like to draw a line, ie with the measurement tool and get a graph showing the pixel intensity as you travel along that line.
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Feb 25, 2013
I have a grid set up. say 10X10 each. I then fill in each square of the grid. I get rid of the grid, left with 10X 10 squares next to each other separated by 1 pixel then I do an outline to quickly get rid of the spaces between each square.
Now I I have 12 pixel wide line, now I would like to do an Inline (negative outline) to reduce the line back down to 10 pixel (or less ) wide line.
Since it is not exactly a straight line, but rather than a zig zaging line I can't exactly use the pixel selection tool.
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Jan 19, 2014
I have a 2013 Macbook Pro 15 with discrete graphics and plenty of RAM, so I cannot image the computer is to blame. I have 2.8.10. When using features like auto white balance it takes way too long to change the pixel colors. I have installed GIMP in parallels and it runs faster through the Windows application than it does directly on my Mac. Is this just the result of the mac build being not as refined? Is there a setting that I need to change? I have the Tile Cache on 8GB and number of processors on 8 (4 actual, 4 virtual).
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Jan 8, 2014
I am trying to do some pixel art. what i want to do is take my concept art which is pretty good size and make a video game sprite over the top of it. So i would need to have a background image which is large and a foreground that is WAY SMALLER but lines up with it.
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Mar 28, 2012
Is there a way to change the origin of the y-axis from the top to the bottom, with the positive being on top and negative on bottom?
Also, I notice that exact pixel coordinates are split down the center of the actual pixel. When I hover the mouse over a pixel, it will only show the correct coordinate of that pixel in the top left quadrant of that pixel. The attached picture represents a single pixel at (0,0). If I put the mouse over the red quadrant, I correctly get (0,0). If I put it over the Blue quadrants, I get (1,0) and (0,1). The Green displays as (1,1). This is rather inconvenient for me, as I'm working on pixel art, so I always have to make sure to mouse over the top left 1/4th of the pixel that I'm trying to find the coordinate of.
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Sep 19, 2011
I'd like to accomplish:
Having a single color background with multiple thin vertical layers that will be equal distance apart, thus giving a striped look. Unfortunately, I'm having trouble positioning the layer exactly using pixel coordinates. I'm not even sure if that can be done.
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Jun 1, 2011
Due to that nature of Video, which I work in, pixels are shaped differently for televisions than they are for computers or print. Standard Deffinition is 720x480 pixels yet you can get the pixel aspect ratio in 4:3 or widescreen which is 16:9 yet it is still considered 720x480 pixels. Is there a way to compensate for this? I author DVDs for clients and would like to use GIMP to create menus for the DVDs. I can start a PSD in Adobe Encore CS4, save it as a PSD, open it in GIMP and work in more detail there yet when I save it from GIMP and open it back up in Encore, because of the pixel aspect ratio, the size of the image and menu is stuck at 4:3. Can I save 720x480 pixels in the 16:9 format or do I need to just change the pixels?
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Nov 14, 2012
I am using Gimp 2.8.0 but only understand about 5% or less of it. (It is running on Win.7 Hm. Prm., Vsn 6.1, Sp-1.)
How can I define or adjust the pencil tool so it draws at the one pixel size in a new ".gif" work area. (That would be one pixel in the image to one pixel on the screen.) I found how to define the work area in pixels for a ".gif". The predefined pencil tool sizes (chosen by assorted dots) "went away" several versions of Gimp back as far as I know.
The object of this effort is to produce "TrainGifs" for use in other applications. Should you be interested just Google "TrainGifs" and you will be able to check out multiple site for this hobby.
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Jun 17, 2012
I have spent hours trying to do this simple task in Gimp without luck. What I'm looking for is the border effect (without outer shadow) seen in the three embedded screenshots in this image: [URL]
In inkscape it's a matter of adding a square on top of the image with identical dimensions and making the stroke colour semitransparent and the fill colour completely transparent, but image quality suffers badly when exporting from svg to png or jpg again, and I'd prefer doing it in Gimp.
So, take image, say 100 by 100, add 1 pixel inner transparent border - how? I have seen this effect enough to suspect it's a filter option but haven't found anything in my filters.
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May 23, 2011
In gimp, some things are confusing. like the shear/skew tool, isometrics/pixel grids, and selecting objects.
Is there a way to skew a circle for isometric pixel art (30 degrees)? Does gimp have a isometric/pixel grid? (there's a regular grid, but its not isometric)
when selecting an object, is there a way to select it without using float every time? Lastly, is there a way to constrain a line to the 3 most used isometric lines used in isometric pixel art? (shift works, but its hit or miss)
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