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24 votes
Accepted

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

I'd guess it's as simple as selecting the subject in Photoshop - with a tad more care & attention than I've used below, then leeching out the saturation in the background & tonally balancing ...
Tetsujin's user avatar
  • 23.4k
24 votes

Level adjusting images to hide internal features/detailing

A well know technique is called "luminosity masks". You create a selection mask where the pixels selection level is: 100% or near 100% in the luminosity range that you want to change, 0% or very low ...
xenoid's user avatar
  • 21.4k
20 votes

Is a JPG guaranteed to produce the same pixels?

Short Answer No, decoding is not guaranteed to always be the same. However, the differences are guaranteed to be very, very small. ISO Specifications The International Organization for ...
Aaganrmu's user avatar
  • 301
14 votes

Can the Nik Collection be used without Photoshop or Lightroom?

Yes they can, but there are some significant caveats. Although they can be run alone, the plugins were not designed to be used as a standalone application. If you have the folder with the executable ...
Michael C's user avatar
  • 175k
14 votes
Accepted

Can a blind person resize a photo independently?

The image I uploaded was rejected because it was under 300 DPI. The DPI is just a number which has no relevance to a digital image. It relates only to printing and not the quality or resolution of ...
StephenG - Help Ukraine's user avatar
11 votes

How can I extract just the value of a tag without the name using exiftool?

Use -b: $ exiftool -b -make x.jpg From the man page: -b (-binary) Output requested metadata in binary format without ...
starfry's user avatar
  • 403
11 votes

Is there software other than Lightroom that offers local Laplacian filters? (Or similar.)

This processing is implemented in darktable via the Local contrast module as explained here. The interface probably isn't as sophisticated as you might like, but may be an improvement on software that ...
junkyardsparkle's user avatar
11 votes
Accepted

Opening NEF files on windows initially open fine but then change contrast

Anytime you open a raw file and look at it on your screen, you are not viewing "THE raw file." ยน You are viewing one among a near-countless number of possible interpretations of the data in ...
Michael C's user avatar
  • 175k
10 votes
Accepted

Remove lightroom from second monitor

The Dual Monitor mode is activated by the Second Window button. To close the second window just click this button again. More on Adobe help page.
Zenit's user avatar
  • 1,791
10 votes
Accepted

Level adjusting images to hide internal features/detailing

I'll interpret your question in the opposite way everyone else has. You seem to me to be asking how to prevent the details becoming visible again. Once you have darkened your image, increase the black ...
David's user avatar
  • 216
9 votes

How to migrate from Picasa to Lightroom?

I wrote a Lightroom plugin for migrating from Picasa to Lightroom. I searched all over the web and could not find a good solution, so I wrote one myself. I decided to polish it up and offer it for ...
Curt's user avatar
  • 91
9 votes

Is a JPG guaranteed to produce the same pixels?

No, you can't depend on decoded JPEG images being bit-for-bit identical. As an example, I tried viewing the image at the top of this page in two different browsers: Chrome 53.0.2785.143 and Internet ...
Mark Ransom's user avatar
  • 1,495
8 votes

If EXIF metadata is removed, can I find the software or camera used in any other way?

JPEGsnoop compares the compression signature in a JPEG with its database of known combinations of signatures and software/firmware, and gives a list of software/cameras that match the signature of the ...
osullic's user avatar
  • 12.4k
8 votes

Are there image stacking (astrophotography) options on MacOS that don't involve running a Windows VM?

There are possibly several options available. From a cursory search, native Mac applications include: Nebulosity Keith's Image Stacker PixInsight (cross-platform) Starry Landscape Stacker If none of ...
scottbb's user avatar
  • 32.7k
8 votes

Terminology for camera focus values

Photographers don't care about the 0 to 255 values, they care about the actual focal distance of the lens in real world units (i.e. metres in the vast majority of cases). If you are creating a product ...
Philip Kendall's user avatar
7 votes
Accepted

How to copy a drawn mask in Darktable?

In the darkroom, go to the left panel At the bottom of the panel, you have a masks management module In the module, you have a list of modules using masks and then a list of masks On the relevant mask,...
Aurélien Pierre's user avatar
7 votes

How to automate a camera to take two pictures every hour for 24 hours, with each picture spaced apart by 15 seconds?

Easy. Use any Canon camera supported by magic lantern. Load it onto the card (plenty of tutorials online, all you have to do is copy some files onto the SD card and run a firmware update on the camera)...
confetti's user avatar
  • 881
6 votes

Is there photo analysis software which will pre-sort images by identifying potential technical problems?

This is pretty easy to do if you can write in Python. Here's a good article on using an open-source computer vision package to detect overall picture blurriness: https://www.pyimagesearch.com/2015/...
RubinMac's user avatar
6 votes
Accepted

Is there any information on Fuji X Wifi protocol?

I was searching for something similar and found this GitHub repository, which was someone's attempt to reverse engineer the wi-fi protocol with the Fujifilm X-T10.
William L's user avatar
  • 216
6 votes

Why does editing software not care about colorspace?

Most editing software cares very much about colorspace. The issue is that users don't usually understand it (because it's very complicated), and even when they do, they often expect contradictory ...
user1118321's user avatar
  • 2,893
6 votes
Accepted

Why are files auto-converted to JPEG when transfer from Nikon D7200 to a PC?

The WMU app seems oriented around sharing photos, for which RAW isn't an appropriate option. Page 20 of the manual says "NEF (RAW) images are converted to JPEG format" Additionally: "if the images ...
MikeW's user avatar
  • 33.4k
6 votes
Accepted

GraphicConverter 10.x - what is "image verification"? What does it do?

This is described by the manufacturer: Specifically added due to requests from users, this new feature is a background task that can regularly verify images on NAS devices. I expect that what it ...
mattdm's user avatar
  • 143k
5 votes

What software can show my most frequently used focal length?

The latest version of ExifToolGUI supports graphing and recursive search ! http://u88.n24.queensu.ca/exiftool/forum/index.php/topic,2750.0.html http://u88.n24.queensu.ca/~bogdan/ https://sno.phy....
Hayden Thring's user avatar
5 votes
Accepted

In darktable, how can I get a particular basecurve preset to be applied automatically?

In the current version of darktable (2.2.1) you can open settings > "core options" and select "auto-apply per camera basecurve presets". In previous versions, you can just create a preset using that ...
junkyardsparkle's user avatar
5 votes
Accepted

New photo/video loop app seen on instagram, what is it called?

Since you say its not Boomerang than my guess is you're referring to Flixel. It's a software application that's a little costly but really cool. You can do the same effects in Photoshop or After ...
RyanFromGDSE's user avatar
  • 2,447
5 votes
Accepted

Will Photoshop run on Linux?

In the past when attempting to install Photoshop on Linux, I've had little success. In reality there is probably no foolproof solution that will allow Photoshop to run without any problems, though ...
WClarke's user avatar
  • 325
5 votes
Accepted

Why are histograms in Entangle and RawTherapee so different?

Entangle shows the histogram of the JPEG image embedded in the RAW file, in logarithmic scale. RawTherapee, on the other hand, shows the histogram in linear scale, shows the histogram of its pre-...
Ruslan's user avatar
  • 560
5 votes

Is there a program that could analyze the "real" resolution of an image?

Theoretically, one should be able gradually to reduce image B's dimensions until reasonable sharpness is detected (bringing it as close to image A as possible, although without actually comparing them ...
StephenG - Help Ukraine's user avatar
5 votes
Accepted

In darktable the lighttable recently defaulted to collapsed sidebars

It sounds like you accidentally hit the [TAB] button on your keyboard. Hitting it again should toggle it back.
Michael C's user avatar
  • 175k

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