Photography

Questions tagged [post-processing]

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Post-processing is the process (and art) of adjusting a previously-captured image to obtain a desired look. It encompasses everything from simple whole-image adjustments to detailed per-pixel touch-up work.

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47 views

Do I lose information every time I add an adjustment layer to an 8bit image in Photoshop?

A friend told me that one of the disadvantages of working with 8bits images within Photoshop is that every time I add an adjustment layer I lose some data. Is that true? Is there a quantifiable ...
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84 views

what is the cause of halo around dark objects (non-HDR)

This problem occurs often with scenes that have trees with the sky behind. I tend to raise the shadows and reduce the higligts (in RAW) to get a more pleasing image, I believe this is a normal thing ...
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49 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 ...
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1answer
184 views

How to use quartered circles to correct camera alignment?

I have seen several scales/scalebars for use in fieldwork/scientific photography that include quartered circles (similar to targets). If I understand correctly, those would be useful to correct images ...
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227 views

How to stitch faces from different photos

Taking group photos of children is often an exercise in futility. It's next to impossible to get all the kids to look at the camera, with their eyes open, with a nice smile on their face. If I take ...
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3answers
2k views

Solve unwanted white “waves” and “Pacman squares” in low-light picture - post using Google Photos

After op commented that my picture is super under-exposed, I tried post using Google Photos. But when I increased the exposure, I saw some unwanted white "waves" or rows in the photo. The edges of ...
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1answer
120 views

How to take shots like this [closed]

I want to know how to take shots like this on a motorcycle on a gopro hero 8. Is this effect done in post?
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1answer
126 views

facilitating long-duration time lapse application

I am doing a time lapse that requires about 36 hours, however my equipment limits me to a rather short-duration interval. The longest time lapse setting available is one photo every 60 seconds. The ...
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2answers
79 views

Emulate Shutter Duration on RAW Photos using Exposure Stacking

So I've been on this problem for about a year now and haven't been able to solve it. I gave up on it a while back, but now I'm researched up and ready to get an answer. I'm trying to fake a long ...
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0answers
109 views

How did Apple create the Catalina dynamic desktop background?

The new version of macOS, Catalina, includes a "dynamic" desktop background featuring photos of Catalina Island throughout various times in the day. Here's two of the eight different images: You ...
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1answer
43 views

Does compressing with chroma-subsampling multiple times degrade image quality?

Suppose I am creating a large image files out of smaller ones. The original images (jpeg) already have chroma-subsampling of 4:2:0. If one were to put them together and save again as a jpeg, would ...
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4answers
657 views

How can I work around lack of support for Canon's new CR3 Raw format in the software I use?

Canon's new Cr3 file format is not able to be processed in any of the top editing software. Lightroom Classic doesn't support it, nor DX0, or Luminar/Skylum. Lightroom CC subscription will but I don't ...
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61 views

How can I correct scanned negatives for vignetting caused by a low-end scanner?

I bought a cheap medion scanner which turned out to be a bad idea since the light in it is not evenly distributed and gives a kind of vignette How can I correct it in an open source program that runs ...
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1answer
55 views

Cropping Aspect Ratios [closed]

When Cropping an Image to the 16:9 Aspect Ratio for large screen (TV) display and Judging of an image in the correct viewed aspect, how does this effect the Printed Image?. Would 19:10 be better all ...
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3answers
232 views

seen on NYTimes - How to create this look for high-contrast sunshine images?

I really enjoy the quality of photos seen on the New York Times web page (although they often cover unpleasant topics). A challenge I already faced on my own is the extreme contrast of sunshine ...
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1answer
110 views

How would you remove power lines from a photo in the darkroom?

Ok so removing power lines in Photoshop is trivial. However I am interested in how the process might work with analog photography, in the darkroom. How would you remove power lines from a photo in ...
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1answer
60 views

Process raw image to match lower resolution jpeg

I have some photos where I have processed the image to my liking but unfortunately only saved a low resolution (for instagram) version. I now would like a higher resolution version for printing. I ...
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2answers
100 views

Is Sensor Noise Consistent Between Cameras of the Same Model?

The RAW photo editing program Darktable has a "Denoise - profiled" filter which reduces image noise by using a noise profiles for your camera model and ISO submitted by other users: The darktable ...
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2answers
157 views

How to achieve this light faded, desaturated look?

how can I achieve this look, as seen in photos by Simone Favilli? I love the soft light effect and colours of this image but I don't know how to achieve it in Post-processing. Any suggestions? Thanks ...
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1answer
57 views

Creating different focal depth images from Lytro IIlum

I am trying to use the Lytro Power Tools developer package to create images at different focal depths. I have a Lytro Illum light field camera which outputs the image as an LFR file. I have Lytro ...
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3answers
171 views

Perfect Full reflection from a small puddle possible?

Something like this image for example. Is this possible without any sort of editing? https://www.instagram.com/p/BcWg4HYgRn8/?taken-by=jadgghorayeb
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9answers
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What's the biggest difference between these two photos of large animals?

The first photo (Gorilla) is one I took, whereas the second photo was taken by a more serious (not sure if professional) photographer. The second photo is clearly better but I'm not sure what the ...
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1answer
104 views

No sharpening in post process! How you can achieve that?

Some professionals do not sharpen their raw photos when they postprocess them and the result is still great! How is that possible? Quality of lenses? Different workaround? Thank you!
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4k views

What are ways to record who took the pictures if a camera is used by multiple people?

My wife and I both like to go out photographing. We usually have only one DSLR/MILC with us, so we take turns in taking pictures. (Rarely, if we have multiple cameras at hand, they usually have ...
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1answer
165 views

Why am I seeing banding with Photoshop but not Lightroom?

Until the most recent update it used to be the case, at least for me, that I would occasionally see banding in Lightroom's Library module, but not in Photoshop. With the most recent update, I now see ...
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225 views

What causes this repetition pattern in a picture? (when re-arranging its pixels by their intensity - code included) [closed]

Just out of curiosity, I was playing with RGB coordinates and pixels of pictures. Then for some reason I decided to get all pixels of a picture, get the RGB coordinates/values of each pixel (eg. RGB(...
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2answers
70 views

What color photo filter should I use to offset a heavy magenta cast on my color slides after digitizing?

I am in the process of digitizing a large number of slides. All of them have a heavy magenta cast to them.I have been using photoshop to attempt correction but with limited success. The ones that I ...
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42 views

RAW image to processed output dataset [closed]

I'm trying to learn how to process RAW images into great final images, and my attempts keep coming up short. I think it'd be really interesting/instructive to see what other people have done. In ...
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1answer
43 views

Why does an increase in Y' channel contrast result in apparent desaturation?

And is this the same phenomenon we see when colours appear less saturated during the middle of the day versus dawn and dusk (when luma contrast is reduced)?
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1answer
95 views

Post-processing goal: three different exposures?

I took a photo yesterday on Roan Mountain, on the AT. In the foreground is an overgrown meadow. Midground is a nearby mountain, dark in contrast with the sun setting just over it. In the background, ...
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1answer
172 views

How to get this color temperature [closed]

Regarding this picture, how is it possible to get such a white balance (13750), because when looking at the Exif metadata, this color temperature is so warm. How is it possible? This is a raw file and ...
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1answer
199 views

How to bring such details on face and dull cyan color grading like in this image?

I have sufficient experience in Photoshop and prefer it over Lightroom. I want to know the directions to achieve these specialties of the image below: Facial details in wrinkles and hair. Dull cyan-...
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4answers
129 views

Is knowing the Sun color temperature enough to get the right white balance?

Assuming the picture is taken at sea level, in direct sunlight (no shadow) under a cloudless sky, and knowing the latitude, day and hour, I can in principle determine the color temperature of sunlight ...
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1answer
63 views

How can I mimic the color saturation of Nikon's miniature-faking mode?

Nikon's on-camera "miniature faking" tweak appears to increase the saturation, increase the contrast, and perform some selective horizontal/vertical blurring (with a falloff region) for a tilt-shift ...
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1answer
151 views

How does one actually *use* a dark frame?

All of my images were shot RAW, but jpg versions are below for context. I'm brand new to this and have taken the three images according to info I found online. My first problem is that my picture of ...
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1answer
213 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 ...
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3answers
181 views

Why is my photo partially colour imbalanced?

I have this photo where part of it is funnily colour imbalanced. I took some product shots under couple of 5500K lights. Part of the product was navy blue and it is appearing as black in the raw files....
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2answers
195 views

What causes this leather-grain pattern of noise in the sky when I inspect with a sharp mask?

Noticed these strange patterns in the sky while adjusting sharp masking with "alt" key in Lightroom. In normal mode picture seems alright (and exported variant looks normal too), but I can't be sure ...
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2answers
136 views

How to sort photos by time, while ignoring date?

I'm an ecologist working with trail camera data. I have about 1 million images taken over a period of several months from multiple cameras that I need to sort through for pictures of animals, but ...
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0answers
120 views

Photoshop is screwing up my colors!

No idea how color profiles work, I usually don't import random images. In photoshop, I proofed the colors, used monitor RGB, and I think used that complicated sRGB-{random meaningless string of ...
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2answers
121 views

How to isolate white subject from a white background?

I am quite new to photoshop, but I have always been having problems creating products on a pure white background. I need it for online selling, but it is a daunting task for me--especially since I do ...
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3answers
3k views

How were pictures turned from film to a big picture in a picture frame before digital scanning?

How did people after taking a picture with film and doing the chemical processes, get that small film image to become a big picture that could be framed and hung before the invention of a digital ...
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1answer
192 views

Can I salvage overexposed images accidentally taken in manual mode?

I have a question. My wife used our camera and left the setting on Manual, which I didn't realize when I was going out to take pictures yesterday in the bright sun. We had some really great pictures, ...
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3answers
270 views

How can I desaturate reds in post-processing using Rawtherapee (or Gimp)?

I took a few artwork pictures in sunlight. I used Rawtherapee's pipette to find a white balance I'm happy with, but the red are overbright. How can I desaturate reds only ? I had some success ...
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1answer
205 views

Tactics for judging if a printed image will be bright enough?

I'm struggling a bit with how to judge if a photo will be bright enough when printed, while I'm working on it on my monitor. "Bright enough" of course changes with the ambient or targeted lighting ...
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1answer
53 views

Are post processing operations order-dependent? [duplicate]

In RAW postprocessing (independently of the software you use: Darktable, Lightroom Rawtherapee, One, ...) is the final result dependent on the order you use in applying the different modules? I'm ...
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1answer
71 views

What would be the best way to make pictures taken with different cameras to look the same?

I am working on cleaning up an Instagram page and one problem I have come across is that there are a lot of pictures on that page. They come from different cameras, lighting and focuses and I was ...
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2answers
600 views

Why would a camera change colors on the image when producing JPEGs?

There's a room with windows closed by curtains, it's night outside and the only light source is a set of LED filament lamps inside the room. Lamps are designed to have 2200K color temperature to have "...
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5answers
4k views

What type of postprocessing gives the effect of people standing out against a flat-seeming background?

Below are real photographs, I was present when they were shot. The photographs were taken between 12:00 to 14:00 on a slightly overcast day. The photographer may have taken many frames. What ...
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1answer
115 views

How to create diagonal blurring and smoothing effect?

How is the diagonal blurring and smoothing effect in this photograph achieved? I know it was taken on an iPhone (by photographer Karen Axelrad) with a shutter delay app. What post process creates such ...

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