26

From the man page: -s (-short) Short output format. Prints tag names instead of descriptions. Add up to 3 -s options for even shorter formats: -s - print tag names instead of descriptions -s -s - no extra spaces to column-align values -s -s -s - print values only so, exiftool -s -s -s -...


25

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 in the luminosity range you don't want to change, intermediate for pixels between these two ranges This done by: making a grayscale copy of your image ...


24

Simply select and copy the screen/glare you want to overlay, and paste it to a new layer. Set the Blending Mode to Hard Light. Then paste in your product image in a new layer and place it underneath the glare layer (you will obviously need to do some jiggery pokery to fit this image onto the screen in the photo). Result:


24

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 towards a sepia effect. As a very quick demo I did the same thing but made it a pretty garish purple instead. Once you have your mask you can treat inside &...


21

I think the main problem is one of dynamic range, your algorithm is probably right but you're working on the wrong type of data. A point light source that would otherwise clip and go pure white gets spread over a larger area by a defocussed lens, so that it forms a disc that isn't as bright and therefore doesn't clip. That's why you get those nice circles ...


20

Lightroom always uses a catalog to store your edits, however you can disable the backup notifications. Go to: Edit->Catalog Settings (PC) OR Lightroom->Catalog Settings (Mac) Set: "Back up catalog" to "Never"


20

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 Standardization (ISO) specifications for JPEG has the following specifications for decoders (emphasis mine): A decoder shall a) with appropriate accuracy, convert ...


19

If you are talking about JPEG files, then the utility jpeginfo is exactly what you're looking for. It can check files for different types of JPEG errors and corruption and either return an error code (the most useful thing for scripting), or just delete files with errors. I use this as part of my initial file transfer, to make sure everything copied okay ...


14

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 file (NOT the plugin file) for a specific Nik suite plugin open on your desktop and drag a jpeg or tiff file and drop it onto the executable file (NOT into a ...


14

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 the image itself. If you change the number to 300 DPI in an editor, it should be accepted. As you have Windows 10 and presumably use assistive technology to e....


13

I think you'll be fine. Look at the case of Aperture, discontinued by Apple. Adobe offers an Aperture import plug-in. Lightroom's catalog is an SQLite database and much of the data stored within it is in XML format so the data is very accessible to programmers if the need arises. In the unlikely event that Adobe and Lightroom ceased to exist, it would easy ...


12

First of all, in optics, only light adds up and darkness does not. Make sure that your algorithm does not bleed dark pixels outwards their original location. Resulting pixels should rather resemble maximum of nearby source pixels than average. Or, to be even more exact, you'd be summing up logarithms of affecting source pixels. Another possible cause why ...


11

The display corruption could be a consequence of using GPU acceleration in the ACR module. Not all cards are supported, so try toggling off the option. Also make sure that option is off in Photoshop.


11

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 errs on the side of user-friendliness. To quote the linked mail: this module enhances local contrast by using ``Unnormalized bilateral filtering'' as ...


10

Assuming that: The focal length has been recorded in the file metadata You are running a Unix-like OS such as Linux or OS X (or Cygwin in Windows) You have installed the exif command line tool Run this on the command line: exif /path/to/your/photos/* | grep "Focal Length [^A-Za-z]*|" \ | awk -F "|" '{print $2}' | awk '{print $1}' | sort | uniq -c | sort ...


10

Yes, because it is only claiming to be better than what they had before. RAW files are camera specific and they introduced camera specific profiles for 70 cameras. It does not appear they are claiming that they now have the best RAW processing around, but only that it is improved over where their ability to deal with RAW files was before. RAW files ...


10

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 point. This will make the new shadows actually black, and prevent the details from being recovered. You can do this in levels in most editors, or with curves: ...


9

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 Explorer 11.0.9600.18426. They look identical, but I put screen captures into an image editor and magnified the difference. You can see that they're not the ...


8

Here is the process I use: cd ~/directory_with_raw_files ufraw-batch --out-type=tif --out-depth=8 --wb=camera --exposure=0.33 --black-point=auto *.NEF Of course, you will process CR2 files instead of NEF. I usually open just the first raw file to find acceptable parameters for ufraw-batch, such as exposure. Then install the stacking package: sudo apt-...


8

If Adobe stops support for Lightroom, you use your catalogs just as you did before. You don't need Adobe's support to use the software, especially if you have a perpetual license. But even if not, the "read only" features will still work after Adobe revokes your CC license. Other than that, there is no migration path to other software currently available. ...


8

Non-destructive Edit History The bad news is that the non-destructive edit history is not something that can easily be moved between Picasa and any other photo processor. Sorry, you just won't be able to keep the history of edits nor will you be able to necessarily recreate the identical effect in any other software without painstaking comparison and fine ...


8

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 others to use for free. You run it from inside Lightroom and it imports all your Picasa Albums, people/faces, and star ratings. Your tags and captions will also ...


8

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 input image. Here is some sample output: *** Searching Compression Signatures *** Signature: 013BA18D5561625796E986FDBC09F846 Signature (...


8

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.


8

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 the Mac native applications do what you want, you're probably going to have to consider somehow running Windows programs. Your question rules out running ...


8

Anytime you open a raw file and look at it on your screen, you are not viewing "THE raw file." ¹ You are viewing one among a near-countless number of possible interpretations of the data in the raw file. The raw data itself contains a single (monochrome) brightness value measure by each pixel well. With Bayer masked camera sensors (the vast ...


7

iPhoto ('09 and later) will automatically take full advantage of shooting in RAW. In particular setting white balance will work much better (no loss of color) and you will have more exposure headroom (you will be able to reclaim more shadows/highlights when adjusting exposure). The only downsides are that you will fit fewer images on a given memory card, ...


7

Stitching RAW files is problematic. In order to get a good stitch you ideally want to correct vignetting and distortion first, something that you would do in your RAW converter, then just output TIFFs of a smaller size (no need for full size when combining multiple files usually) and things will be both quicker and more accurate.


7

from http://wiki.panotools.org/Lens_correction_model The actual lens correction parameters a, b and c which are used to correct for barrel distortion, pincushion distortion and even wavy distortion. The a and c parameters control more complex forms of distortion. In most cases it will be enough to optimize for the b parameter only, which is good at ...


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