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
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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15 votes

What makes RAW files difficult for manipulation?

Nothing makes raw files difficult to manipulate for someone with the right expertise and tools. It's just that there aren't many folks around who have those tools and expertise. The tools needed to ...
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  • 168k
12 votes
Accepted

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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  • 2,040
10 votes

What makes RAW files difficult for manipulation?

A RAW file is little more than a container for the output of a camera sensor. It has to be processed into an image which gives it full color information at each pixel. As such there are no programs ...
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  • 101k
9 votes
Accepted

How do I correct the huge blue-shift in these images?

I'm not sure how much they can really be rescued - there's one heck of a lot of blue in there & very little of anything else. Applying a Levels Layer & pushing the mid-point of each colour by ...
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  • 19.7k
9 votes

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

I got into photography with a compact digital P+S just before DSLs became affordable, when all the photography experience and wisdom to absorb was about film. Because the people I learned photography ...
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  • 317
8 votes
Accepted

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

Not in the darkroom, but at the retouching (spotting) table. If you're working with large format film, you can paint them out on the negative. But that's risky. Most of the time you retouch the ...
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7 votes
Accepted

RGB colour correction of CCD camera images

To fix this, you need to decompose your image to RGB channels separately. R and G channels are vertically shifted from B channel by 5 pixels each. You need to align these channels vertically. For ...
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  • 390
7 votes

Do I need a telephoto lens to make objects in the distance appear closer?

How can I achieve this effect? Lens compression does not directly have anything to do with the focal length of a lens, though it may seem that way. In fact, it has everything to do with the distance ...
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  • 1,564
7 votes

Do I need a telephoto lens to make objects in the distance appear closer?

How the size of different objects in a photo appear in relation to one another is what we refer to as Perspective. Perspective is determined by the position of the camera relative to the scene as ...
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  • 168k
6 votes

Where lays the border between correcting photo and creating a new one using PC?

Note: This answer was merged from a question that was almost identical to this one - the only difference was a minor focus on ethics, which is what I tried to explain in the second part of my answer. ...
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  • 6,307
6 votes

How can I mass cutout people from stock photos with arbitrary backgrounds?

I don't know if there is any way to do mass masking, especially with an inconsistent background. I would suggest a masking tool like Topaz Remask. It would make pretty quick work of masking for ...
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  • 1,542
6 votes

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

Why... acceptable while... frowned upon by the photography community? The context changes what is acceptable and what isn't. The context of your original question was "traditional photography rules" ...
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  • 26.3k
6 votes
Accepted

Watermarking processing proof

There are photoshop plugins around like imatag or digimarc, which offer this as a professional service. The software encrypts a bit of information in a bit pattern and then hides this pattern in your ...
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  • 3,384
5 votes
Accepted

Are deconvolution filters better than unsharp mask for correcting out-of-focus photographs?

Deconvolution can in principle allow you to reverse the unsharpness, but this works best when you have low noise images and you can extract the so-called point spread function accurately. Your camera ...
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  • 3,508
5 votes

How can I edit equirectangular images?

ImageMagick can't do this—it doesn't do projection remapping. But there are a number of other tools that do. I'm pretty sure that Hugin or panoramas tools scripting or Gimp and Mathmap could ...
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  • 49.1k
5 votes

What makes RAW files difficult for manipulation?

There are better formats for lossless, high bit-depth image storage and exchange. The main benefit of raw files is that they contain minimally-processed sensor data. So there's no compelling reason ...
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  • 3,602
4 votes
Accepted

Is the odd appearance of this owl's head due to an unusual camera angle, or bad photoshopping?

I'd like to suggest that the question is good and is about photography (but needs needs more detail.) Birds can look really strange in flight and knowing this can be of great value if a "looks good ...
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4 votes

JPEG image problem

If your intention is to modify the JPEG file by changing some bytes inside it, just do the following: convert JPEG to uncompressed BMP change the bytes convert BMP to JPEG
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  • 4,845
4 votes

What makes RAW files difficult for manipulation?

RAW files are hard to manipulate because there are no tools for this. There are no tools because manipulating them is pointless. RAW files don't hold standard images. They hold the data read ...
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  • 2,843
4 votes

How do I correct the huge blue-shift in these images?

If you can get the raw, have a look at those. If they look reasonable, the blue colour might have been a conscient choice. But even in that case, creating a version in natural colours should be ...
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  • 3,113
4 votes

How do I correct the huge blue-shift in these images?

I'm with Tetsujin on the edit to save. To me, it looks like the photo was taken intentionally using a strong blue filter - probably one made for use with black and white films (for contrast) as ...
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  • 20.3k
4 votes

How can I interpolate each color individually (i.e. export an image just with Red Color) using dcraw?

dcraw can't do this directly, but it can do something which will get you pretty close: render each pixel as a grayscale, either with unscaled pixel values with -D or scaled ones with -d. This will ...
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  • 140k
4 votes

Is it possible to remove the projectors lighting that's imprinted on the staff members

The best option for you is to clone from the other image. And if done correctly, no one will know that you edited the image. Open the image in photoshop Next, open the other image in photoshop as a ...
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3 votes
Accepted

How can I wrap a new pattern around a 3D object in a photograph?

Either you do it manually or by building a 3d model in a third party 3d modeling tool (or from a 3d scanned point cloud converted to a surface) and applying textures in Photoshop using Photoshop ...
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  • 34.4k
3 votes

HDR smartphone cameras: is it done in hardware or software?

Since many smart phone "HDR apps" don't actually do any real HDR so it's useful to define what we are talking about. HDR stands for "high dynamic range", it's designed for situations where the ...
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  • 20.5k
3 votes

How can I best photograph white powder so I can later cut it out of the background but keep natural shadows?

This is mostly guess work, but if you can use the backlit glass against a solid white you might be able to take a few shots and combine them in photoshop. For the first shot (image A), turn the ...
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3 votes

How can I interpolate each color individually (i.e. export an image just with Red Color) using dcraw?

I don't know of any raw converter (dcraw, ufraw, etc.) that will do this for you. But, if you have ImageMagick installed, you can use dcraw to create a TIFF and then just do: convert -channel red -...
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