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GIMP (GNU Image Manipulation Program) is an open source, and freely distributed piece of software used for photo manipulation and retouching.

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5
votes
3answers
177 views

How to fix chromatic aberration with free software?

Here is a zoomed-in example of an image I shot that has a bit of discoloration due to the chromatic aberration of the lens. What's the easiest way to fix this problem using only free software such ...
0
votes
0answers
45 views

Getting UFRAW into GIMP 2.8.14 on Yosemite

Folks claim that the versions of GIMP downloadable from http://gimp.lisanet.de/Website/Support.html have UFRAW in place. I just downloaded 2.8.14, and I see no sign of it. It's not listed in the ...
1
vote
2answers
163 views

How to calculate mean/average photo color in GIMP?

How to calculate mean/average photo color in GIMP? I have some photo and want to calculate average color - how can I do it?
1
vote
1answer
89 views

Problem in white balancing photographs taken in sun

When a photograph is taken in sun, the whole photograph becomes slightly orange in color. Specially the skin tones become too orange. The photographs are taken from simple mobile phone high megapixel ...
1
vote
1answer
118 views

Dramatic differences between UFRaw, GIMP, and JPG displays

I recently downloaded GIMP and I am having a slight issue. When I import a RAW image into GIMP, tinker with it (using the UFRaw plug-in), and then press OK, the displayed image (in the GIMP preview) ...
6
votes
2answers
411 views

Why won't GIMP 2.8 open my long exposure shots?

I'm unable to edit some of my tripod and shutter release shots in GIMP 2.8.10. It only seems to affect the photos taken in bulb (full manual shutter timing) mode, where I have exposure times anywhere ...
2
votes
1answer
29 views

How to get Ufraw to pass on EXIF data to Gimp

I cannot find EXIF data in Gimp using Ufraw as standalone OR plug in, even though I use the option save EXIF data - what could I be doing wrong?
0
votes
1answer
148 views

Raw is larger and softer than JPG

Here is a JPG image (unprocessed) followed by the corresponding DNG that I post-processed in Photivo/GIMP. (Canon Powershot SD750) Flip between the two images in Chrome. Why is the raw image ...
0
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0answers
43 views

How to create different color effects with gimp? [duplicate]

How can I make images look like those in Gimp, how can I play with colors? What tools or approach should I take?
1
vote
1answer
206 views

Why do we even need RAW-specific editing software?

I was wondering the other day, why do we even need software like Lightroom, Adobe Camera Raw or Darktable? Their purpose is solely to retouch image in a most general manner (major tint/temperature, ...
0
votes
1answer
171 views

Gimp GEGL Tutorial for Photographers?

Is there a good tutorial for GIMP 2.8 software, that explains, comprehensively, how to use the GEGL operations (which have the the advantage of being nondestructive) for photo images? When I look ...
2
votes
2answers
209 views

Post production for beginners [closed]

I am having a hard time finding information (books or websites) related to post production. I would like to understand how (and even when or why) we adjust brightness and colors, what could enhance a ...
0
votes
1answer
27 views

Gimp's color options not working

I'm trying to edit the color balance of a layer in a .xcf image, and none of the color commands do anything. For example, I can crank saturation and value to 0 in Hue-Saturation, or invert values, and ...
3
votes
1answer
47 views

How do I copy selection from one color layer (let's say - Red) to another?

I'd like to clean up the whites of an eye. In Photoshop I used to select the white of an eye, and copy from Red to Blue and Green channels just by selecting the necessary color channel and clicking ...
3
votes
1answer
169 views

Photo Editing guide for gimp [closed]

Can I get some guidelines related to editing images with GIMP? Its not easy to learn it without any detailed guidance. How can I sharpen my gimping skills?
7
votes
2answers
1k views

How can I remove shine from skin caused by the light with GIMP

I have a photo made under portrait dish key light. And the model has a little shiny spot on her forehead. Several years ago I used Olympus Studio (if I'm not confused after so many time passed) and ...
3
votes
3answers
177 views

How to cut an irregular pattern with proper transparency?

This may be hard to describe and I'm not proficient enough to draw it yet so please bear with me. I'm cutting parts of some photos of me and my girlfriend to put on a board game I'm making for her. ...
0
votes
2answers
142 views

How to create this early sun look?

I have seen lot of images that look similar to this, where there is this whitened light (image found on flickr) How to make image look like this in Gimp or Photoshop (prefered GIMP since I use ...
0
votes
1answer
886 views

How can I do something like Photoshop's warp tool with open source software? [closed]

Using Photoshop, I can edit an image by using tthe lasso tool and warp tool. I need a open source solution that will operate in similar way. I tried Gimp software, but there is no warp tool in that. ...
1
vote
1answer
83 views

Can a curve be added in GIMP as a layer?

The colours in a GIMP image can be modified by using the curve tool. When I apply the curve tool, the original values are forgotten. Is is possible to apply the curve tool as a layer filter so that ...
6
votes
2answers
4k views

Is there an “Exposure” setting In GIMP comparable to that in Photoshop's Image Adjustments?

In Photoshop, there is an Exposure feature in Image-Adjustments-Exposure which changes the image as if you actually changed the shutter speed on the camera. This effect is generally much more ...
5
votes
1answer
310 views

How to achieve Japanese-painting like effect with Gimp?

In a recent blog post Trey Ratcliff shares the following picture: About the processing he says: To achieve it [...], you can duplicate the layer then do some extreme sharpening and a black and ...
0
votes
3answers
910 views

How do I get started in post-processing with Gimp? [closed]

There seem to be loads of books and online material that discuss post-processing of images and how to do it in Photoshop, see e.g. Any good tutorials for learning how to post-process images? Where ...
0
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0answers
62 views

How to do the Ghost Mannequin Effect using GIMP? [duplicate]

How can I use the ghost mannequin effect using the GIMP software? I like to use this technique for clothing. I'm not very computer savvy. Can someone please explain in detail?
0
votes
1answer
144 views

Non-Canon software not reading custom image settings off RAW images

I'm fairly new to photography, and I've been trying out a few image editors, and I stumbled upon one issue: any program that can read Canon's raw files, except Canon's Digital Photo Professional, ...
5
votes
2answers
474 views

Gigapixel panorama problems

I took hundreds of pictures from a 75mm-300mm lens in Cristo Rei(Lisbon), but since Hugin (panorama tools GUI) canoot distinguish well water from... water(neither i) i took the river pictures with a ...
13
votes
4answers
446 views

How to edit the exposure/contrast of two different areas of a photo with a smooth transition between the two parts?

I'm a complete newbee in photography and in photography editing, but I made a a photo I really like with my phone, and I would like to improve it numerically. Here is the photo. I know how to use ...
1
vote
1answer
294 views

how to cut a silver object against darker background?

I got a few photos of a cassette. The cassette is made of steel. It’s against various backgrounds. I was playing with it a little in Gimp but have not come up with a good and fast solution how to ...
4
votes
2answers
859 views

What is this effect called and how can I post process my photos to get this effect?

I came across this image of an artist on a website. I was wondering what this type of effect on images was called and how I can post process my photos get this effect?
3
votes
2answers
249 views

Restore colors from an infrared frame in Gimp

I have some frames of a security IR camera. The images are black and white. Is there any way to represent these images with colors. I use GIMP in Ubuntu operating system. Thank you!
4
votes
1answer
450 views

How can I find the matrix that GIMP used?

I used a perspective transformation on an image in GIMP, but not before I forgot to record the transformation matrix it used. (I need to apply the same transformation to a bunch of other images.) I ...
8
votes
3answers
4k views

How to best filter away high ISO noise in Gimp?

So I took a picture at a high ISO value in poor light conditions. I can't retake it, the grain effect is bad, I'm aware this will never be a good photo, but I still want to make the best out of it. ...
2
votes
4answers
3k views

Converting RAW images to lossless jpeg using GIMP?

I have a Raw image which I want to get printed. I need to upload this to a website which expects to be in jpeg format. I use GIMP for photo editing and used UFRaw to view RAW images. GIMP cannot ...
6
votes
3answers
5k views

How can I overlay two images exactly by scaling one of them in gimp?

I have two different pictures of the same object, one of which is taken from roughy the same angle but has a different scale and rotation. I want both images to overlap so that the upper one matches ...
2
votes
3answers
1k views

How to photograph a huge book on a table so text is level?

I use PENTAX Optio RS1500 Hoya Corp. digital camera with 14 megapixels. When I photograph a huge book on a table, I can use text mode to capture all the text and lines clearly. But the lines become ...
9
votes
1answer
3k views

What is the easiest way to alter white balance in Gimp?

Let's say I've accidentally shot my pictures on "sunny" white balace when I should have used "shade". What is the easiest way to warm the pictures up a bit in Gimp? The "Colors/Color balance" tool ...
12
votes
5answers
2k views

Is Adobe Photoshop worth the money?

I am starting to invest a little more money into my photography business. I've gone from a hobbyist to being asked to take professional shots, so I have the lights and other equipment. I'm upgrading ...
0
votes
1answer
1k views

Is there an installer for the Windows version of the latest Resynthesizer plugin for Gimp?

From here : http://registry.gimp.org/node/25219 !!! The attached executables are Linux files. DO NOT download them for Windows. Also do NOT download the Python scripts for Windows (they won't ...
8
votes
1answer
1k views

If I assign a profile to my monitor in Gnome Color Manager, should I also enable that profile in Gimp?

I finally got around to using dispcalGUI to profile my monitor under Linux. Now, having assigned that profile system-wide using Gnome Color Manager (or the Xfce Color settings dialog), there's a ...
1
vote
1answer
164 views

How to offset the positioning of the Preview Gridlines in GIMP?

When rotating an image with GIMP, there is an option to superimpose gridlines on the image. The number of lines is settable but the offset is not. I'd expect that when changing the center of rotation, ...
2
votes
1answer
556 views

How do different books on Gimp compare?

There is a series of books on GIMP. What are the differences among them? Can you help to pinpoint a good reference ? Ideally I hope that after reading such a book I would be more or less ...
1
vote
1answer
722 views

Are Gimp's “color space” blend modes the same as those in Photoshop?

The Wikipedia article on Blend Modes describes three of them in particular like this: Photoshop’s hue, saturation, color, and luminosity blend modes are based on a color space with dimensions that ...
2
votes
3answers
1k views

Can you clarify a better workflow for bracketed exposure HDR 360-panoramas?

After reading the thread about HDR Panorama workflow I was a bit confused. I need some help with clarification. In my current workflow I have to edit the nadir shot(s) using The GIMP. I do my best to ...
7
votes
4answers
9k views

Does Gimp have a Match Color function similar to that in Adobe Photoshop?

In a recent question, Steve Ross points out that Adobe Photoshop has a useful feature for matching color between photographs. Of course, color adjustment can be accomplished in Gimp with careful use ...
1
vote
2answers
1k views

Is there a way to get Gimp to use color curves from a Technicolor CineStyle S-curve lookup table?

Is there a way to import a Technicolor CineStyle S-curve lookup table in Gimp->Color->Curves? The lookup table is just a text file with 256 lines, with a numeric value (0..255) on each line: 0 ...
6
votes
1answer
270 views

How do I effectively split an outdoor image across an uneven horizon in Gimp?

I'm looking to take an image looking out at a storm in the distance that has a fairly uneven horizon due to trees and a foreground fence post and only increase the contrast and decrease the brightness ...
2
votes
1answer
451 views

Why do my photos get much smaller when sending .cr2 files from ufraw to gimp?

I am using ufraw to open .cr2 raw files in gimp, but I'm experiencing a strange issue. The .cr2 files are some 7Mb large. A typical dimension could be, for instance, 2374x1591, as reported by my ...
12
votes
8answers
955 views

Reservations on making the move to Adobe Lightroom or Apple's Aperture

Background I'm a web developer (diploma) and computer scientist (degree), so I know a thing or two about computers and software. I just got into photography in Nov '10, but have been using Photoshop ...
13
votes
1answer
1k views

Can the effects of a polarizer be replicated in post-processing?

According to my knowledge Polarizing filters are mainly used to make sky appear more bluish in the day sunlight which gives more dramatic effect to your pictures. I don't have polarizing filters yet ...
19
votes
4answers
7k views

Is there an equivalent to Adobe's “Vibrance” in Gimp?

See: What's the difference between saturation and vibrance in Lightroom? In a nutshell, Adobe's Vibrance is a "smart" color adjustment that increases saturation selectively, leaving skin tones ...