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16 votes
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How can I convert a QR code from JPG to SVG with perfect clean squares?

Open the image in GIMP, and crop it to the edge of the QR code as close as you can get. Next you need to scale the image so that 1 square = 1 pixel. There are 33 x 33 squares (I counted them) Do ...
Billy Kerr's user avatar
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9 votes

How can I convert a QR code from JPG to SVG with perfect clean squares?

I would just use a service like Adobe Express or another QR generator to remake the QR code. With Adobe Express, you can export the QR code as a SVG file.
AndrewH's user avatar
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6 votes
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GIMP: How can I undo the last point with Free Select Tool?

I just figured it out now. I can just press Backspace
Harry McKenzie's user avatar
5 votes

Counting colored pixels using GIMP

The Histogram dialog is your friend. When used "raw", if shows an alpha-weighted count of the pixels (in other words, it counts non-transparent pixels). For instance in this image: Pixels ...
xenoid's user avatar
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5 votes

How to achieve textured color gradients?

IMHO a combination of a banded gradient with soft edges/transitions: This gives this: With a little bit of Spread noise added: The image you show is probably such a gradient applied to a grayscale ...
xenoid's user avatar
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5 votes

How to achieve textured color gradients?

I don't think this is a gradient, at least not one that was created using the gradient tool. It's too irregular. I would begin with something like this. These were just painted with a soft edged brush....
Billy Kerr's user avatar
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4 votes

How can I convert a QR code from JPG to SVG with perfect clean squares?

If you do not care about reproducing that exact image but just a QR code containing the same information, you can use simple QR code tools to decode and directly re-encode into a crisp QR code. On any ...
Wrzlprmft's user avatar
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4 votes

How can I convert a QR code from JPG to SVG with perfect clean squares?

You are wasting your time and the client's money in labor costs, it's a gosh darn QR code. The QR code merely resolves to https://www.facebook.com/profile.php?id=61550679391101&mibextid=LQQJ4d Go ...
MonkeyZeus's user avatar
3 votes
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Copy a (text) layer and paste in place in Gimp?

No equivalent... however for what you want to do, I use a different angle: I edit the three screenshots as layers of the same image (which also makes it easy to crop them exactly the same if ...
xenoid's user avatar
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3 votes
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Gimp make new image from selection or layer

Make a selection with a selection tool, or use Ctrl+A to select the entire image on the selected layer Copy it using Ctrl+C Do File > Create > From clipboard, or use the short cut Shift+Ctrl+V ...
Billy Kerr's user avatar
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3 votes
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How to flatten only selected layers affected by Addition mode in Gimp?

The addition mode disappears because the resulting layer is put in Normal mode, but if you put the result layer back in Addition mode, you recover the previous aspect, as far as I can tell. Another ...
xenoid's user avatar
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3 votes
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Gimp - Why am I unable to snap to the edges of the brush?

You aren't missing anything. AFAIK you can only snap the center. If you want to always snap to the same side of the brush, you can define a grid offset so that snap_point ± brush_half_width is where ...
xenoid's user avatar
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3 votes

colorize an area of (mainly) one color to a given target color in GIMP

Your image has a very low quality, with very strong JPEG compression artifacts (and the fact that it was later re-encoded with a better JPEG quality doesn't change anything to this), and these ...
xenoid's user avatar
  • 16.7k
3 votes

colorize an area of (mainly) one color to a given target color in GIMP

Using gimp Make a selection with the "Free select tool" you can make it in the middle of the black line. Play with the "Hue Croma" tool. Mainly change the hue, but you can also ...
Rafael's user avatar
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3 votes

How to reduce file size of png file after setting transparent background in GIMP?

I don't think what you want is possible with an RGBa PNG image. This has little to do with GIMP itself. The problem is that it's a lossless format, so it's always going to be bigger than a ...
Billy Kerr's user avatar
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2 votes
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divider or compass tool - or equivalent way - in Inkscape or Gimp?

I found an approach that works / is better than nothing, to get the idea across - the "real world" idea of using a compass or dividers to scribe circles from a set of points, but in Inkscape....
Bryan-StackExchange's user avatar
2 votes

Gimp Color To Alpha removes too much opacity

Try this. Set the layer blending modes to the Legacy setting - that will set the layer blending mode to Normal (I), which is the Normal (legacy) blending mode used in older versions of GIMP prior to 2....
Billy Kerr's user avatar
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2 votes

Gimp: Extend Background with Colour Gradient

I'd suggest you recreate the gradient. It's probably easier than trying to extend or squish/stretch the existing image, and the results will be better anyway. Click on the foreground colour square, ...
Billy Kerr's user avatar
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2 votes
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With GIMP, how to crop a layer to the size of a different layer?

Lets call the layer with the desired size and position SOURCE. And lets call the layer we want to crop the TARGET. Duplicate the SOURCE layer (Right click -> duplicate) Move the duplicated SOURCE ...
Peter Lamberg's user avatar
2 votes

Good and Cheap alternatives to Photoshop for CMYK

A lot has changed since you asked the question more than a decade ago. These free and open-source projects seem to support CMYK now: Krita Scribus ImageMagick Also, these proprietary projects that ...
Tin Man's user avatar
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2 votes
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How to move layer but not its connected mask

You can't, if it's the layer mask. But you can put your layer in a group, and set the mask on the group, and then move the layer: But in Gimp 2.10, there is an even simpler way, instead of using a ...
xenoid's user avatar
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2 votes
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Grouping soft light layers causes them to merge

Can't exactly reproduce your problem, but: When you put layers in a group, the layers in the group are blended among them selves, and the resulting image is blended with the rest of the stack using ...
xenoid's user avatar
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2 votes
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Gimp: How to change or adjust selection parameters after the selection is made?

Gimp has no knowledge of the origin of the selection(*). The selection is just a "channel", a grayscale image, and the feathering is essentially a blur applied to that grayscale image. And ...
xenoid's user avatar
  • 16.7k
2 votes

colorize an area of (mainly) one color to a given target color in GIMP

Get Krita - it's also free. It's HSV/HSL adjustment filter maybe does in Colorize mode what you expect: It's applied to a selection which contains also some black as you did in your own attempt. I do ...
unpropan's user avatar
2 votes
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Gimp - How to simplify nodes on path

In the path editor, if you Ctrl-Shift-click a node(*), it is deleted, and the two nodes it was connected to become connected. So if the three A-B-C nodes are in a straight line and you delete B, you ...
xenoid's user avatar
  • 16.7k
2 votes

Gimp - Make all Cars Yellow

Lighting, shadows and reflection create a range of colors from the initial paint color. And AFAIK the only tool that maps a range of colors to another is Colors > Map > Rotate colors. But it ...
xenoid's user avatar
  • 16.7k
2 votes

How can I convert an image to 16bit high color in gimp?

As far as I know, you can only do this in GIMP when exporting as a Windows BMP image (.bmp file). Note that this format is more or less obsolete today. I suppose after doing this, you could open it up ...
Billy Kerr's user avatar
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2 votes
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How can I convert an image to 16bit high color in gimp?

Only want to see, no need to get a converted file? Then it's easy. History High color was a step to better colors in the era when color was a new thing in low cost computers. RGB displays did show ...
Brad Wurst's user avatar
2 votes

How can I convert an image to 16bit high color in gimp?

Colors > Components > Decompose to RGB mode In the extracted image: Use Colors > Posterize on each layer, with 32 levels on Red and Blue, and 64 in Green. Colors > Components > ...
xenoid's user avatar
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2 votes
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How to resize QR code from vector graphic without grayish zones?

The SVG isn't pixel perfect. That's the problem. Use Inkscape for this, for creating the QR code using the built-in QR Code extension, and for exporting as PNG at the size you need. Forget GIMP for ...
Billy Kerr's user avatar
  • 84.8k

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