Questions tagged [gimp]

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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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!
Vagelism's user avatar
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2 answers
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GIMP's color profile options on file opening and on export

GIMP's operations with color profiles seem hard to grasp. I've studied a question describing experience similar to mine here: GIMP. TIFF. Color profile sRGB IEC61966-2.1 and embedded color profile ...
Anton K's user avatar
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1 answer
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Remove sun glare using GIMP

How can the glare from the sun in the upper right part of this photo be removed using Gimp?
Al Lelopath's user avatar
3 votes
2 answers
4k 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?
hunterp's user avatar
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1 answer
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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?
Evangelina's user avatar
3 votes
1 answer
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Workflow and colorspaces in Darktable and GIMP for printing images?

I have started to print out some of my photos, but this has lead me down a path where I do not know if I am doing things correctly, and are asked questions I do not know the answers to. Here goes: I ...
Sitron_NO's user avatar
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2 votes
3 answers
2k views

How do I create an infinite picture-in-picture effect?

I want to take a picture of an empty frame on a wall, then digitally edit that photo into itself infinite times. So the result should be a picture of a frame, which contains the same picture, which ...
MaxD's user avatar
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2 answers
3k 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.
Al Graham's user avatar
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3 answers
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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 ...
sam's user avatar
  • 121
2 votes
2 answers
18k 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: ...
wyc's user avatar
  • 139
2 votes
3 answers
593 views

best Gimp blur filter for popcorn ceiling

What would be best Gimp blur filter to make popcorn ceiling less noticeable? I am using Gimp currently, used Photoshop/Lightroom years ago, but don't have access to a PC now. Definitely not a ...
Tagar's user avatar
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2 votes
4 answers
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What technical terms or rules of thumb do I need to understand for a black and white conversion of a photo? [duplicate]

Below is a photo taken by me: Below is a photo I found on internet: There are some visible differences between the two. One is dull and the other has visible blacks and whites. I feel I need to ...
Aquarius_Girl's user avatar
2 votes
2 answers
2k views

Why does GIMP increase the size of exported JPEG files?

I'm using GIMP to edit some vacation pictures (JPEG files) taken with a rather old digital camera. Lacking a professional background, I just went about by trial and error and ended up adjusting the ...
david's user avatar
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2 votes
3 answers
2k 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 ...
Sukima's user avatar
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2 votes
1 answer
926 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 ...
Francesco's user avatar
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1 answer
844 views

GIMP: How to apply the same processing to multiple photos

In Photoshop, the same sequence of processing on layers of each image in a batch can be applied to those multiple images by using File > Automate > Batch > Action then select the group of ...
user610620's user avatar
2 votes
1 answer
201 views

Colour shift in photographs between applications? (profile included)

I have Asus ProArt PA329 monitor. I made a full system reinstallation a few months ago, had not really worked photos for a while due to lockdown and other things etc. More recently, I re-installed the ...
TTT's user avatar
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2 votes
1 answer
436 views

How to process 360 photos without creating seam?

I shoot 360 photos with a 360 camera that takes the entire scene with two wide-angle lenses that are stitched together to obtain 360 panoramas. I use Rawtherapee for post-processing and colour ...
NorthSon's user avatar
  • 131
2 votes
1 answer
97 views

Crop multiple pieces from a photo and save with sequential numbers

I am looking for a way to draw multiple boxes around parts of an image at one time (sort of a ctrl+select) then save each box as a separate image. I usually use GIMP for photo editing, but any free ...
tjr's user avatar
  • 131
2 votes
2 answers
174 views

How to imitate the blur on subject outlines after removal of background using GIMP?

Using GIMP I masked out an unwanted person who was situated in the background of my image. This person was partially concealed by my subject. I used the path tool to trace the outlines of my subject ...
Paul's user avatar
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2 votes
4 answers
714 views

What sort of post-processing can improve this washed out image?

The original image [ISO => 400, F11, 1/320 seconds, -1/3 EV] looks washed out, may be because of bright day light overhead. In GIMP, if I apply Tools => Color Tools => Levels => Auto, the picture ...
sherlock's user avatar
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2 votes
1 answer
2k views

Expand Canvas and Extend Edges of Image to Fill It

Hopefully this is the right place to ask this type of question. I am editing a digital photo (in gimp), and need to increase canvas size slightly. At one point, I was watching a tutorial where they ...
GWR's user avatar
  • 121
2 votes
2 answers
653 views

How can I correct high-altitude photos taken without a UV filter?

I took a string of photos, without a UV filter, at an altitude of 2.500m/8.200ft and they all look 'odd', flat, washed out. In the GIMP Color > Levels Tool the Input Levels the histogram for the red ...
ottotts's user avatar
  • 23
2 votes
2 answers
1k views

How do I reset Ufraw to default settings in Windows?

The first time I played around with Ufraw / Gimp on my Windows machine, I hit "save" in Ufraw. Now, it opens every new photo with the odd warm settings I was playing with. How do I reset Ufraw to ...
Jeff's user avatar
  • 121
2 votes
2 answers
313 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 ...
user2118622's user avatar
2 votes
1 answer
1k 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 (...
Francesco's user avatar
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2 votes
1 answer
344 views

Making selections by value threshold in gimp 2.9

Does anyone know how to make a selection by value in GIMP 2.9? I'm trying to "cut out" saturated stars (values of 64k) in an astrophotograph. "Select By Color" should be able to do it, but the ...
mittimithai's user avatar
2 votes
1 answer
475 views

Haze effect in moon photo? (using GIMP)

I used two photos of the recent supermoon and combined them. The result is OK (link below). I was unable to achieve a look I wanted, where haze causes darker areas of the moon surface to assume the ...
user722951's user avatar
1 vote
1 answer
330 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 slightly ...
Simon Kuang's user avatar
1 vote
1 answer
363 views

Gimp perspective tool is not actually transforming

I've uploaded a screenshot below to illustrate the problem. I've dragged a jpeg into Gimp, clicked on the perspective tool, and then attempted to use it...but as you can see, it's not actually ...
Vyvyan Mar's user avatar
1 vote
1 answer
5k views

How can I remove the grid lines during transformation in GIMP?

I'm trying to change the perspective of a layer in GIMP, but it's very difficult to see what I'm doing while there's this enormous grid over the selection. Is there any way I can disable this? Here's ...
carbunch's user avatar
1 vote
2 answers
2k views

How to convert a dull monochrome photograph into a sharp black and white photograph with great contrast? [closed]

I shot the following photo with Nikon D3100 + Nikkor 50mm 1.8f G. I shot this with the Monochrome option of the camera. I use Gimp for post processing. I sharpened this with the Unsharpen Mask ...
Aquarius_Girl's user avatar
1 vote
2 answers
3k views

GIMP. TIFF. Color profile sRGB IEC61966-2.1 and embedded color profile GIMP - built-in sRGB

Friend gave me photos. TIFF with LZW compression. Parks, people walking, relaxing. People are doing fitness. I want to crop these TIFFs, resize. Then I will export it to JPEG. Then I will post these ...
Konskoo's user avatar
  • 85
1 vote
3 answers
4k 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 ...
Grzenio's user avatar
  • 215
1 vote
1 answer
100 views

How can I remove blown-out sun glare reflected from a sign?

I've been asked to fix up the banner in this photo to remove the glare. I've played around with some of the answers I've found on the internet already, but haven't had any luck. Does anyone have any ...
Ace Taylor's user avatar
1 vote
2 answers
672 views

Wrong in-camera auto white balance issue

I own a Sony DSC-H55 point and shoot camera. It has a 14 MP CCD sensor with 10x optical zoom. I am happy with the overall image quality. The in camera auto-white balance is producing wrong color ...
digiwizkid's user avatar
1 vote
1 answer
317 views

Remove "random" noise [closed]

I have a picture which was taken from a book and it's full of noise: I tried to remove the noise manually but it is too difficult and takes a lot of time. I noticed some webpages who attempt to treat ...
Dor's user avatar
  • 113
1 vote
2 answers
2k 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: ...
Mike Moe's user avatar
  • 371
1 vote
2 answers
124 views

How will the image be displayed/interpreted if I publish a JPEG online with no embedded color profile?

How will the image be displayed/interpreted if I publish a JPEG online with no embedded color profile? I use GIMP 2.10 on Windows 10 Home 64-bit.
Konskoo's user avatar
  • 85
1 vote
2 answers
3k views

Is GIMP allow to add or change geo-tag localization in Exif data? Is there any plugin for that?

do you know is it possible to change or add geo-tag localization in Exif data of .JPG photos? Is there any plugin for that? I cannot find any clear answer is it possible from the graphical application ...
Heron's user avatar
  • 217
1 vote
1 answer
312 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 ...
bmargulies's user avatar
1 vote
1 answer
466 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, ...
Rok Kralj's user avatar
  • 305
1 vote
1 answer
79 views

Leica Q2M JPG files cannot be read by any of my Ubuntu (21.10) image software

I very recently picked up a Leica Q2M, and on my first attempt to read JPG files recorded on its storage media I've found that nothing on my Ubuntu 21.10 installation can read the files. I've tried <...
Pointy's user avatar
  • 197
1 vote
2 answers
1k views

.NEF Raw files open in Black and White

I recently went flying with a friend and took my Nikon D3300 DSLR up with me to get some aerial shots. As I'm still learning I set the camera to RAW+JPEG so I had some pics and could also have a mess ...
Blizz23's user avatar
  • 11
1 vote
2 answers
696 views

Warp-sharp script not working in Gimp 2.8

I have been scanning film and I just got sick of the Unsharp mask setting of my scanner software (EPSON Scan). It just makes the grain look huge and unnatural, ...
Meclassic's user avatar
  • 217
1 vote
1 answer
534 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 ...
Chogg's user avatar
  • 113
1 vote
1 answer
2k 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 ...
mattdm's user avatar
  • 143k
1 vote
2 answers
863 views

Remove Vignetting from thousands of images

I am doing historical research for which the only document source is microfilm typically created in the 1950s by technicians who did not understand the characteristics of this then new technology. ...
James Cobban's user avatar
1 vote
1 answer
2k views

Gimp or ImageMagick: Adjustable kind of equalize?

Sometimes, I shoot pictures that are badly lighted (e.g. very dark areas, while part of the picture is well exposed). In some instances, equalizing the pixels can do real wonders. But is there also ...
user258532's user avatar
1 vote
1 answer
403 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) ...
K. 622's user avatar
  • 121