2
votes
2answers
35 views

In GIMP, how can I change one solid colors to multiple color variations?

I'm not really sure how to ask this in words, but I used to use a program along time ago that would change one solid color into multiple variations. Say I have a solid red square, but I want it to be ...
3
votes
2answers
93 views

Restore image with negative colors

I have an image that was taken using a negative color filter long ago, but now I need the normal picture, is there a way to get a good quality of that picture with the actual colors? The current ...
1
vote
2answers
49 views

How to select color with gimp

I am trying to select by color in Gimp this image: but when I select by the foreground color, also the antialiased pixels in the border are selected. How to select only the foreground color in ...
1
vote
3answers
126 views

How to downsample an image to match a 16-bit color mode?

NOTE: I'm a systems administrator, not a graphic designer, so I'm a total n00b when it comes to image manipulation. That being said, I thought this would be the best forum to ask this question: I am ...
3
votes
2answers
198 views

Outlining photo content (like a colouring book)

I am trying to make a full color photo into just a black outline to be printed and colored in by hand, basically just making coloring pages off of full color photos. I just installed gimp, but cannot ...
0
votes
1answer
32 views

Add more white color to Gimp layer

How can I add more white color to a Gimp layer? What about adding other colors to it?
8
votes
1answer
598 views

In GIMP, how do I use an image as a color reference to colorize a black-and-white photo?

Let's say I have created a layer on a black-and-white image with a layer mask to colorize some parts (for example skin). I am able to change this with Colorize and change to any color. But how do I ...
1
vote
1answer
73 views

Where can I learn about the low level concepts used in a Graphic design application?

I am new to Graphics design. I want to learn a graphics design software in order to develop a game. I chose Gimp as it was free and i followed few tutorials. Most tutorials accomplished the goal ...
0
votes
2answers
85 views

Recolour image based on lower resolution version

I want to recreate the following image at a much higher resolution, so it will be suitable for printing in large. I have found a place where I can purchase a high-resolution version of the ice ...
2
votes
1answer
872 views

Is there way to colorize by RGB in GIMP?

There is a colorize tool in GIMP. But it provide only with HSV. Most of time I want to colorize with RGB, so I'm using converter web site like http://www.rapidtables.com/convert/color/rgb-to-hsv.htm. ...
1
vote
1answer
171 views

How can I fix screenshots with subpixel rendering?

When taking a screenshot of some text with subpixel rendering, the result is very ugly, especially in print. Obviously, the best way to avoid this is to deactivate that option before taking the ...
5
votes
3answers
721 views

How to add a color gradient to a picture

I felt in love with the way this graphic designer, called Mariusz, has edited this picture. It would be fun to produce something like this for myself. Anyone has some ideas on how to create such a ...
2
votes
4answers
2k views

Gimp: Pick color on screen without taking screenshot

Sometimes I want to quickly use a color that I see on a picture, website or program. I usually take a screenshot then open it in Gimp and use the "Color Picker" tool. Is there another way to do this ...
5
votes
2answers
4k views

In GIMP, how to colorize using a reference color?

I have an image I wish to colorize using a picked color. What is the handiest/easiest way to do this in GIMP? I've tried my best by checking the palette for my picked color's HSV, then using it as ...
-1
votes
1answer
160 views

Which color i have to add on neutral grey to get white

I am using gimp with a large text image. Unfortunately there is no way to change the color of the individual words. So I changed the text color to a neutral grey (#7f7f7f) and added layers above the ...
-1
votes
1answer
691 views

Create consistent greyscale icons from a set of third-party logos?

I have a bunch of third-party client logos in clashing colours. I would like to convert them to elegantly matching grayscale. What I'm after is a set of identical grayscale images of the kind seen ...
1
vote
1answer
56k views

Changing the background of the picture to white

I have a passport picture in which the background is light brown. I need to change that background to white. Is there anyway I can do that using Inkscape or any free tools? Here is the picture: ...
7
votes
7answers
5k views

GIMP - change color of object preserving feathering

I have an .xcf image and I like to change the color of some objects within it. The objects are mostly one solid color with the edges feathered into transparency. I.e. all pixels in the object are ...
7
votes
1answer
45k views

Make image partially transparent in gimp

I want my image to have 60% transparency. How can I do this in gimp?
9
votes
1answer
5k views

How can I map the colors in a greyscale image to a specific color “gradient”?

Caveat: I'm not a graphic designer and may be misusing some terminology. Please bear with me. :-) I'm attempting to add color to some greyscale icons (i.e. all three channels are identical). I ...
4
votes
2answers
1k views

Command line interface-based way to desaturate and posterize an image?

This is by far my most common task, and I'd say I've wasted about 1000 mouse clicks on it in my raster-based program. Because it's so common for me to start off desaturating an image and then ...