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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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1answer
80 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
103 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
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1answer
22 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
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1answer
32 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
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1answer
111 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
277 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
78 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
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2answers
131 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
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1answer
206 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. ...
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1answer
64 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 ...
5
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2answers
2k 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
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1answer
244 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 ...
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3answers
611 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
61 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
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1answer
138 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
387 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 ...
12
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4answers
379 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
270 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
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2answers
727 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
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2answers
226 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
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1answer
352 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 ...
6
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3answers
3k 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. ...
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4answers
2k 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 ...
4
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3answers
3k 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
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3answers
952 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 ...
8
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1answer
2k 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
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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
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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
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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
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1answer
157 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
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1answer
490 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
611 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
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2answers
840 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
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4answers
8k views

Does Gimp have a Match Color function similar to that in Adobe Photoshop CS3+?

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 ...
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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
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1answer
247 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
405 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
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8answers
906 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 ...
12
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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 ...
18
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4answers
6k 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 ...
2
votes
1answer
1k views

Anyone know of a PS filter that's equivalent to the Retinex filter for GIMP?

The closest I've found so far are a couple from Topaz Labs. They're not quite the same though. Retinex is awesome. Especially if the environments in which you shoot lead to lots of underexposures.
2
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2answers
6k views

How to improve quality of pictures that are already taken (if possible in GIMP)?

I'm not a photographer but a graphic designer. In GIMP, I only discovered two methods of improving the quality of an photo: Filters > Enhance > Unsharp Mask Noise > HSV Noise Basically, ...
3
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2answers
721 views

How can I “paint-with-opacity” onto a layer in gimp [closed]

I have a layer that is at 50% opacity. But in certain regions, I want to use a paintbrush to bring the opacity higher. How can I do this?
4
votes
1answer
7k views

How to create two layers in “Gimp” and merge them back into one?

How do you create two layers in "Gimp" and merge them? For example, I would like to load an image, create two identical layers, edit each layer in different ways, then merge them into one final ...
9
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2answers
597 views

Is there an easy way to select by histogram range in GIMP?

The other day I was wondering if there is an easy way in GIMP to choose the pixels that are part of a selected range on the histogram.
15
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12answers
2k views

What are the alternatives to Photoshop? Is Gimp a good option?

It seems that Photoshop is the dominant software in that space, however I am a hobbyist photographer and Photoshop is not cheap. Is there anything else that compares and that does not have such a high ...
13
votes
2answers
2k views

How does the Curves tool work in GIMP?

I started using GIMP recently, and came across an option called Curves under the Colors menu. What does this tool do, and how do I use it correctly? I get some good colors if I make a graph in 'S' ...
32
votes
6answers
28k views

Does Photoshop have an equivalent to Gimp's “Color to Alpha”?

I have discovered Gimp's "Color to Alpha" feature, and man is it awesome! Basically, it will extract a particular color out of a selection and convert it to transparency. This gave me the ability to ...
25
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9answers
1k views

How do I move my post-processing beyond Picasa?

Over time I've become fairly skilled in using Picasa to do post-processing starting with NEF files, but I'm thinking it's time to step it up a notch, and explore what I can do with a more ...
13
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1answer
9k views

Are there GIMP plugins that allow one to view and edit EXIF data?

Does anyone know if there is a plugin available for the GIMP that will let you view and edit all the EXIF information associated with an image?