59 votes

Why is software-based manipulation of images frowned upon while hardware-based manipulation is acceptable?

Why are hardware-based manipulations, like black and white photography (traditionally using black-and-white film), long exposure, etc., which also result in an "unnatural" image, acceptable while ...
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  • 140k
57 votes
Accepted

What makes this interior photo look unrealistic?

Certainly the biggest factor is the dynamic range processing. The room is so bright, and shares the same color temperature as the outdoors daylight lighting. Yet the shadows in the balcony and near ...
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  • 31k
43 votes

Should I horizontally flip a client's portrait?

If the lighting was asymmetrical and consistent between shots, then the lighting will be flipped as well and this might easily make the shot look simply awful or so awful its funny. This may not be ...
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  • 531
43 votes

How to check if a photo is edited (even basic edits like exposure and white balance)?

Being slightly harsh, competition rules like that show that the organisers don't really understand how modern cameras work. A very high level and simplified view of how a camera makes a image (JPEG): ...
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  • 19.8k
42 votes
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How were pictures turned from film to a big picture in a picture frame before digital scanning?

Going from negative film to a printed image is a two-step process. First, the negative is developed — the latent image on the film brought out and then fixed in place. Now you have a piece of ...
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  • 140k
37 votes
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How can I add a border to a JPEG photo without affecting quality?

Although Philip's answer is the best way to go, it is possible to do what you want entirely within the sphere of JPEG. JPEG works by breaking your image up into blocks called Minimum Coding Units (...
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  • 5,154
36 votes

How to convert JPEG to RAW in Photoshop or similar?

In addition to the points Alex S made, you need to consider why they want RAW. There are several possible reasons: Bit depth as Alex S said. JPG suffers from compression artefacts which RAW doesn't. ...
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  • 3,602
35 votes

Is it moral to remove/hide certain parts of a photo, as a photographer?

Artistic photography follows the beauty is in the eye of the beholder ethos. There is nothing inherently immoral about it. Photography that is meant to make a political statement or journal actual ...
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  • 20.3k
33 votes
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How do I rotate a lot of digital photos by 180 degrees in one operation?

I would recommend any of the applications from this list at JPEGclub.org, which develops and maintains software for the Independent JPEG Group. They have a free piece of code called jpegtran which can ...
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  • 140k
31 votes

Should I horizontally flip a client's portrait?

There are no hard and fast rules in art. You are free to follow your heart. If flipping some of the images assists in the symmetry of the final presentation, then go for it! Few if any will recognize ...
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  • 36.2k
29 votes
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How to convert JPEG to RAW in Photoshop or similar?

RAW is not (or minimally) processed image data from camera sensor. JPEG is processed image data. Typically, raw-files from modern cameras have 12-14-bit per pixel which means up to 16384 values (for ...
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  • 1,749
28 votes
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How to capture a swinging pendulum?

Let's look at the last picture. If you want a black background, you need to be careful not to spill light. It's relatively easy to control in a large studio, it's almost impossible in a small room. ...
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  • 2,064
28 votes

An image with lower resolution is of higher file size while that of a higher resolution is of lower file size. How does that happen?

The reasons to have difference in size can be (and most of them are related to image compression): Amount of details in the image. Save flat colour image and another with several colours and you will ...
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  • 9,280
26 votes

How does Renato D'Agostin achieve these super minimalist and high-contrast photos?

Upon viewing his portfolio at the link you provided, my first thought was push processing. In push processing, one typically underexposes the shot (that is, meters and set exposure as if the the film ...
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  • 31k
25 votes

What makes this interior photo look unrealistic?

The thing that sets off the alarm is the perfectly bright and uniform lighting in the room, especially on its ceiling. The room should be quite dark, since the sun is on the other side of the building ...
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  • 16.3k
24 votes

How to make sky more green grey and skin more golden?

You can achieve this using flash, gels, and white balance. Set your WB so that the background (the clouds) has the desired colour tone, this will probably involve a lower WB setting than the one ...
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  • 6,770
24 votes

How do I merge two photos with a transition from the color photo to the black-and-white photo?

Usual technique (here with Gimp, but same technique is doable with PS): Put your two pictures in layers (they should of course overlap as exactly as possible, which is easy if like here one is a ...
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  • 16.3k
22 votes
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Is there any proof that high saturation and contrast makes a picture more appealing in social media?

I think your manager is right, and that this phenomenon is much more widespread than just photos for social media, or even photography in general. Take a look in supermarkets, and take in the flashy ...
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  • 2,623
22 votes

An image with lower resolution is of higher file size while that of a higher resolution is of lower file size. How does that happen?

For these two photos: as shown by ImageMagick's identify, the bird is JPEG quality 100 and the llamas are JPEG quality 92). This alone would be enough to explain the size difference (the other factor,...
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  • 16.3k
21 votes

How can I add a border to a JPEG photo without affecting quality?

The point to remember here is that you lose quality when saving the photo into a lossy compression format. So long as you save the photo in a lossless format (PSD, TIFF, etc) after adding the border, ...
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  • 19.8k
21 votes

Why is software-based manipulation of images frowned upon while hardware-based manipulation is acceptable?

Is it frowned upon? Photography has always made use of whatever technology was available, whether in the camera, the darkroom or, now, the computer. It's a long time since other forms of art were ...
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21 votes

What makes this interior photo look unrealistic?

The focus seems too even to me.  I would expect a photo taken to have something blurrier, either in the foreground or background.
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  • 311
20 votes
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Does over- or underexposed give the most life-like post-edit results?

Overexposed areas have a sharp cut-off when the maximum pixel value is reached. You have a completely white area if this happens in all colour channels. There is nothing you can do in post to recover ...
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  • 6,770
20 votes

How do I merge two photos with a transition from the color photo to the black-and-white photo?

Just to provide a third option - & you can do this with just one colour photo, no need for a separate black & white image. Add a Hue/Saturation adjustment layer & dial out all the ...
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  • 19.7k
19 votes

How to fix uneven/gradient lighting on a canvas with white background?

Edit: I wrote a Gimp script that does the steps below, and another one for Ilmaris answer. Both scripts are available for download on GitHub. The suggested way to go is this one. I’m answering this ...
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18 votes
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Should I store unedited/raw, edited, or watermarked images while backing up on DVD/CD?

I would suggest backing up three things: The original RAW files. Your RAW software's database of adjustments — usually, this is kept as lossless storage of what changes you made. High-quality (100%-...
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  • 140k
18 votes

Will editing an image in a significant way alter copyright?

(As you havent specified a country, I will assume UK, others will likely be similar or the same) According to the Copyright, Designs and Patents Act 1988 (https://www.copyrightservice.co.uk/copyright/...
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18 votes
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Should I horizontally flip a client's portrait?

What I did in the end Thank you all for your suggestions and advice. You all really helped me decide what to do. Just to clarify, I wasn't aware that they wanted this before the shoot and they were ...
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  • 521
18 votes
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Why does the image get bluish and not yellowish when I shift the color temperature to a lower K?

Because the color temperature that you give in photo editing is the assumed color temperature of the light source used for the original picture. With a low temperature light source the colors are ...
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