Questions about GIMP, the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. Ask scripting questions on Stack Overflow, software support questions on Super User, and anything related to design here ...

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0
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2answers
124 views

Pixel Art in Gimp

I want to create some Pixel Art images with the help of gimp. when I wanted a pixel field of 8x8 I used to simply create an image with the width and height of 8 and used the pencil with the pixel ...
-1
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1answer
55 views

How to apply color layout to an image? [duplicate]

Is there a way to in GIMP to apply a color layout to an image? For example this image has a blue color laid out on it. How can I do something similar to another image?
2
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1answer
115 views

Make a particular colour less bright

I'm trying to create a reference image for a greyscale drawing. In the original reference photo, the subject is wearing a brown jacket and grey pants which have pretty much the same brightness, and ...
0
votes
1answer
869 views

How to paste / edit text in a PNG file using Gimp?

I have brought a PNG file off the Etsy website, and I want to add text on top of it, but once I added text it all distorts and it is very bad quality, but in another instance it did not and the image ...
1
vote
1answer
179 views

8-bit gray image in gimp

I change the mode of my figure to Grayscale in the gimp and export it in the .eps format. But my output .eps figure still has CMYK mode. Is any other action that I most do to have a 8-bit gray image?
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2answers
729 views

GIMP: find midpoint / arbitrary division between two points

How do I find the middle, or n/th division or percentage of distance between two arbitrary points in GIMP? Like, I have an object / a line of arbitrary length / two guides, placed in arbitrary place ...
4
votes
1answer
58 views

GIMP: Stroke Path along single points

What I need: to draw different sets of icons in the same points of the picture (with the purpose of drawing different network schemes with the same structure). There are A LOT OF Points. Therefore I ...
1
vote
1answer
57 views

How can I change the color of images in GIMP?

I'm creating a login form like the following. Now I have the color versions of the images but I don't know how to make them black and white. Can you help me?
-2
votes
1answer
124 views

How do I sharpen a bitmap image that has been enlarged from a small size? Is it even possible?

I am trying to find a way of sharpening the following image with GIMP: Is there any approach on doing this? Is it even possible?.
0
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1answer
68 views

Using GIMP, how do I fill the canvas with an image?

I have this in my canvas: What I want to do is cover the whole canvas with this image; the image is 250 px wide, so I want to add 3 more so the whole canvas looks like fire! How do I do that? ...
0
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0answers
81 views

.dds File Loses Color When Viewed in Layers

I have three .dss photo files from a video game that are textures. A lot of the separate maps (diffuse/specular/normal) are on different layers of these photos so I need some layers individually to ...
1
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3answers
141 views

Set transparency of wood print [duplicate]

I am trying to make initials found in old books transparent. E.g. The paper should be completely transparent and the dark parts of the print fully opaque. But the parts of the print that are not ...
-1
votes
3answers
717 views

How to put a new picture in an iPhone image frame

I want to change the screen part of this Iphone image with the screen capture of my own app. I'm trying to do this in Gimp (unless there is a better way?). However, I can't seem to just copy paste my ...
3
votes
2answers
63 views

How can I shrink these areas using gimp?

I have an imagemap. I want to shrink to areas that are pink and are overlays when hovering the mouse over the map to highlight the selected region. Now I can't seem to shrink the pink areas that are ...
0
votes
1answer
459 views

Compress png images with Gimp

I'm getting a message from PageSpeed Insights that recommends to compress some png images. E.g: If compressing .../logo.png without loosing information, you would save 1.014 B (12% redcuction). ...
12
votes
4answers
17k views

How to convert old scanned documents into black and white

I have some old documents that have been scanned, and I want to convert them to black and white. Content should be always black, and background white: I use Photoshop.
1
vote
1answer
51 views

Gimp - fast switching to eraser

I've been searching for this but all I find are annoying tutorials on how to click the eraser button. Whenever I switch to the eraser it keeps the tool size I was using for the pencil, I'd really ...
0
votes
2answers
209 views

How to convert an array of HTML colours into into a picture? [closed]

I have an array of colors, for example: A=[['#ff00ff', '#00ff00', '#ffff00', '#00ff00', '#0000ff', '#00ffff', '#00ffff'], ['#0000ff', '#0000ff', '#00ffff', '#00ff00', '#ffff00', ...
2
votes
4answers
128 views

How can I beat the browser when it comes to reducing image size?

Can't get my head around this. I tried several ways to reduce the pixel size of a logo in Gimp. However, the browser (either safari, firefox or chrome on my iMac) is always amazingly better reducing ...
1
vote
2answers
197 views

How to create a patterned image from existing shape in Gimp

I am hoping to create a simple logo for a new website using Gimp. I am working with two images and a short line of text. I have the following images: The map will be the background/filler of the ...
1
vote
2answers
296 views

Remove transparency in bulk - GIMP

I have 3,337 PNG images which all have a transparent background. First of all, I don't know how to remove transparency... Second of all, I want to do this with all 3,337 images at the same time. I ...
1
vote
2answers
236 views

How to change the size of transparent background in Gimp?

The following image cuts when used as a logo here. I want to increase the size of the transparent background so it fits in properly without the underneath cut, as shown here. Using Gimp 2.8, how can I ...
101
votes
3answers
475k views

Making the background of an image transparent in Gimp

I have some jpg images and I need for each of them to have a transparent background. I have GIMP as a graphic tool. I need to put them in a web page and I need to see just the main element and have ...
0
votes
1answer
57 views

Is there any way to change a color without affecting its brightness in GIMP?

I'm trying to find out because I'm making a mod for Minecraft and I'm trying to keep the regular brightness variations
2
votes
1answer
104 views

Is there any tool that gives the percentage occupied by an area in an image?

Is there any tool that gives the percentage occupied by an area in a image? Given the following image: Is there any kind of tool I can use to know the width in percent of the green and blue areas? ...
0
votes
1answer
85 views

How to Select by Color WELL?

In Gimp (2.8.10) when I use the Select by Color tool it frequently selects bits of color physically distant from the area I'm trying to select. For example I'm trying to select the color of a shirt ...
3
votes
2answers
2k views

GIMP: the closest thing to Photoshop's smart object?

I've been learning GIMP as an alternative to Photoshop, which I haven't been using for design purposes for more than 5 years now. I discovered that there is a new interesting thing called the smart ...
1
vote
2answers
76 views

How can I make the alpha in a layer proportional to the darkness?

I have a layer that I want to merge and I want the dark colors in the layer to have more weight. How can I make it so that black pixels are 100% opacity, white pixels are 0%, and #7F7F7F pixels are ...
0
votes
1answer
77 views

Gimp – blend between layers controlled by a heightmap

Suppose, I have a gray-scaled height map and ten layers with different diffuse textures or solid color textures. I would like to blend these texture layers in a way determined by the heightmap, as ...
2
votes
2answers
5k views

Why can't I fill a selection with color using GIMP?

I am quite new to GIMP. I created some text and set it along a path. I created a selection with the same shape as my text. If I try to fill this selection with a color (Cmd. or Cmd,) GIMP appears to ...
0
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0answers
166 views

scan/fax with text & numbers in black & white - how to improve/cleanup/enhance using Photoshop/GIMP?

I do not have a lot of experience with Photoshop or GIMP. I have a scanned or faxed document of an invoice/receipt that I am trying to submit to get reimbursed. I was mailed a copy with text that is ...
3
votes
2answers
143 views

What is the correct name of this filter?

Normally, this is what would you would see if you magnified older newspaper images printed in color. (check the background of the attached image) What is this filter called? How can I recreate this ...
1
vote
1answer
129 views

GIMP opens JPG file with different colors

I have a JPG file (produced in Illustrator, from the EXIF tag) which, when opened with GIMP, displays the colors differently from any other program I have (e.g. Firefox, eog, gThumb, etc.). Here's ...
0
votes
1answer
161 views

Is there a Photoshop equivalent to Gimp's Bump Map filter?

I'm following a tutorial on fantasy cartography. It was written for Gimp, and I've been figuring out how to convert the steps to Photoshop (CS6) as I go along. The step "Bump Mapping your Height ...
1
vote
2answers
61 views

Isolating red ink with GIMP/Photoshop

As a puzzle author, I often write puzzles with red ink and then test-solve them with pencil. What would be the most efficient way to remove the pencil and blue gridlines from the paper to leave only ...
4
votes
2answers
696 views

How to show boundary of every layer in Gimp?

Using Gimp, I am working on a sprite image made of lots of icons, each on a separate layer. I would like to check that there is no overlap by displaying the outline of all layers. There is an option ...
17
votes
2answers
13k views

Why does my transparent PNG not look good?

I want to convert a JPG to transparent and using GIMP I added alpha layers and transparency same way I make a GIF transparent I converted it to PNG but it doesn't display well when I load it on my ...
2
votes
1answer
594 views

Using GIMP to extract a background from a set of pictures

I've got a set of pictures of a group of people that were taken on a tripod. Some of the people moved between pictures, and I want to extract a common background so I can combine the backgrounds to ...
2
votes
2answers
482 views

Gimp 2.6.12: modify alpha channel while preserving color

This is for a video game in which a specularity mask is in the alpha channel of the normalmap. I need to create an image where the alpha value for some pixels are 0 (to indicate no specularity,) but ...
0
votes
1answer
35 views

How can I modify text/shapes created early and have effects previously built on those elements propagate automatically?

I have an image with the effect of wooden text inlaid within another species of wood. I would now like to change the text. However, I would then need to reapply all of the layer masking, resizing ...
2
votes
1answer
126 views

how can I collaborate using GIMP2?

most of the collab tools for drawing that I've seen so far cost too much, and lack features. GIMP does everything that I want, but unfortunately I don't know of a way to draw with 2 or more people ...
0
votes
0answers
78 views

Gimp paintbrush blendmodes usage

While I can understand singularly every blend mode of the paintbrush from the math point of view, I cannot find a use for most of them (the only ones I used are for drawing a castle and these were ...
0
votes
0answers
63 views

Change the blue shades to white shades

I have an image of many different colors. I want to turn anything that is predominantly blue into being predominantly white, while leaving the other colors unchanged. So if the RGB of the image has ...
0
votes
1answer
67 views

How Can I View Applied Filters in Gimp

I would like to see the filters that are applied to a (text or image) layer in GIMP. Is this possible? Thanks in advance
2
votes
2answers
55 views

GIMP: Toggle show/hide all non print extras

In GIMP, is there a way to quickly toggle all visible guides, grids, selection boxes, etc that are cluttering the display? I'm hoping there's something that's one key stroke instead of the way I ...
0
votes
2answers
2k views

Swap Colors (not Invert them) in Gimp

I know how to Invert Colors but is it possible to swap Colors? For example from this one: To this one: So that I select one Area and then swap Colors (or even the full Layer/Picture)? By the way ...
1
vote
1answer
402 views

Erase a single pixel in GIMP

I am trying to illustrate in GIMP 2.8 with pixel-perfect precision. The pencil tool allows me to fill in a single pixel without any fuzzy edges or anti-aliasing. However, the eraser tool operates more ...
6
votes
5answers
930 views

Convert image into mask

I have a green background picture with some shadows. I would like to use it as a mask so I can place it on background with any color (e.g. red or pink) and get the same style of shadows. I tried ...
2
votes
4answers
2k views

How do you get transparent colour on Gimp?

In the colour selection I have been searching for a transparent option, but I can't find one. How can I do it?
1
vote
1answer
47 views

GIMP: Ellipse position from center

I know that I can create an ellipse from the center. However, inside the tool properties panel, "Position" refers to the top-left corner. How could I change its position based on its center point? I ...