Questions tagged [image-manipulation]

Altering a photo so that it departs from reality in some significant way.

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27
votes
9answers
11k views

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

In my previous question someone pointed out that unnatural HDR based toning will get more objections from the photography community than cropping. I personally feel that slight HDR based enhancements ...
25
votes
9answers
3k views

Should an artist/photographer admit to a photo being edited?

I was recently looking at some landscape photography awards in Central London and noticed that quite a few of the images had significant post editing in Photoshop. The artists had even mentioned ...
18
votes
6answers
4k views

Can digital cameras sign images to prove authenticity?

Beyond the metadata/EXIF/IPTC (which can be easily altered), is it possible to prove that an image is authentic? If this is not possible, how does a photojournalist prove the authenticity of an ...
14
votes
6answers
12k views

How do I get this 'glare' effect?

I have been staring at this Apple Image & trying to figure out how to get this glare effect (which can be seen on the monitor). Someone knows?
12
votes
3answers
3k views

How was this image where a person appears to lift a paved road created?

Since the development of advanced photo editing programs like Adobe Photoshop, artists use unusual techniques supported by creative imagination to produce unrealistic but conceptional images. Among ...
10
votes
2answers
2k views

Is there an easy way to select by histogram range in GIMP?

The other day I was wondering if there is an easy way in GIMP to choose the pixels that are part of a selected range on the histogram.
10
votes
4answers
15k views

How to identify photoshop-edited files

If I have saved an image in JPG format after doing some edits, is there a way to identify that it is edited with Photoshop?
9
votes
6answers
4k views

What makes RAW files difficult for manipulation?

The only available tool able to create a RAW file is, as far as I know, a camera, and there are no standard tools to manipulate it. I've heard that's why RAW files are used in different photography ...
9
votes
4answers
5k views

How can I tell if a photo is real or faked?

How can I tell if a photo has been edited or manipulated? Are there techniques for distinguishing real photos from fakes? Are there software tools that can help? Are there things I can do in ...
8
votes
2answers
7k views

How to recreate this effect, a mix of profile and front headshot?

I've seen several photos like the example below and I would like to create one. I think it overlaps a profile photo and a front headshot, with lots of local adjustments. Do you know of any (photoshop) ...
8
votes
3answers
2k views

How are these “wiggling” 3D images made?

Just recently, Yahoo.com posted images that have a 3d effect without any glaesses and here is an example of one of them: How is this done? I searched all over but can't find any good tutorial. I know ...
8
votes
3answers
4k views

How can I create a grayscale with color highlighting effect in Lightroom?

Highlighting certain area with color, leaving the rest grayscaled — what is the name of this effect in photography? What is the most precise way to achieve this effect in Lightroom?
7
votes
2answers
2k views

How does automatic HDR software work?

An HDR image is the combined image of varied exposures that give good detail of the subject in the photograph. How does HDR software know what part of the images to blend? Manually, we know by ...
7
votes
1answer
396 views

How do I effectively split an outdoor image across an uneven horizon in Gimp?

I'm looking to take an image looking out at a storm in the distance that has a fairly uneven horizon due to trees and a foreground fence post and only increase the contrast and decrease the brightness ...
6
votes
5answers
2k views

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

I need to photograph white powder in a circle shape and still retain the shadow. I've tried photographing on different coloured backgrounds as shooting on white is too tricky to cut out. The ...
6
votes
3answers
11k views

How can I edit equirectangular images?

How can I edit an equirectangular image that was taken with a Ricoh Theta S? I would like to add text and/or "stickers". Is this possible with a tool like ImageMagick? Sample as requested: And the ...
5
votes
4answers
328 views

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

I recently inherited a lot of images with a lot of blue on them (attached below) I would like to correct this, get the natural colours. I am just aware it was taken using a Nikon D60 18-55 VR lens, ...
5
votes
2answers
2k views

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

I have seen some photos where a far-away object looks much bigger compared to nearby objects. Apparently this is called lens compression and it has to do with the focal length of a lens. How can I ...
5
votes
4answers
5k views

What software do I use to remove part of a photo and blend that space?

I have a picture of a very old house but there's a real estate sign in the yard. What software would I use to remove that sign and blend the background? I really don't want to purchase anthing ...
4
votes
3answers
45k views

How can I erase objects with Lightroom (rather than Photoshop)?

I have a picture shot on a white background, however the white background didn't cover the whole frame. The sides of the image show unwanted objects. I would like to erase these side parts such that ...
4
votes
5answers
7k views

How can I find dust in Photoshop similar to the Lightroom feature Visualize Spots?

Adobe Lightroom 5 came out with a new feature called "Visualize Spots" that helps you to find dust. More information on the feature can be found here: Adobe Help How can I achieve a similar function ...
4
votes
2answers
152 views

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

I'm doing a project where I need to export 3 different images from a raw file (DNG or RAF), each image with a different color (Red, Green and Blue). I'm using dcraw.c, Dave Coffin's raw photo decoder. ...
4
votes
1answer
268 views

Effect to reduce width of photo without cropping or stretching

I saw a documentary a few years ago (about 5) demonstrating a photographic manipulation formula, which can reduce the width of an image, without stretching, or cropping. It would do this by ...
4
votes
5answers
7k views

Is there a desktop application for easy photo effects, like Camera+ for the iPhone?

I'm searching a desktop equivalent of the Camera+ iPhone app. The app Camera+ has predefined effects which can be added to images. Basically, all I want is a desktop application which is able to ...
4
votes
1answer
213 views

Can this glitch be reproduced?

I used to own a Canon IXUS 400 that was glitchy. Here's an example of a glitchy photo that it took: This glitch has been documented here, and the manufacturers used to offer free repair of the ...
3
votes
4answers
402 views

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

There are two physical different steps on creating the photo: Actual shooting (including preparing to shooting) Post processing on PC (all what starts after downloading the photo to PC) On the ...
3
votes
1answer
118 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 ...
3
votes
2answers
564 views

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

I have pictures that are going to be used to advertise clothing for a kids clothes shop. I have a quite a large amount of photos (266 ). They are all similar to this: My job is to cut the ...
3
votes
1answer
5k views

How to clear edges from a lasso cropped object in Photoshop CS6?

I've cropped this picture with the lasso tool: What's my next move about this? Do I do this manually by removing pixel by pixel or are there some quicker solutions for this task?
3
votes
1answer
517 views

RGB colour correction of CCD camera images [closed]

I've developed an application which is able to communicate directly with a CCD camera (unbranded and obscure) and I'm able to capture and store the image from this camera. When the image is first ...
3
votes
4answers
250 views

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

As you can see display screen is imprinted on the faces of around 5 members. I was wondering whether it is possible to remove the lighting. Either through clone stamp, feathering or any other way. I ...
3
votes
2answers
175 views

How does Lightroom group colors inside the HSL panel?

I am working on a small application that would allow the same functionality as the Lightroom HSL Panel: I would like my application to behave very similarly to how Lightroom does. Therefore I grouped ...
3
votes
1answer
346 views

What does it mean to brighten an image?

Courtesy of my optometrist, I now have images of my retinas. However, the images are a bit dark. I have RGB values for each pixel. In this setting, is brightening the image equivalent to increasing ...
3
votes
1answer
55 views

Is it possible to use imagemagic to build a composite image from multiple photos of a moving object?

I frequently have 10 photos taken from a tripod mounted camera, of an object moving across the field of vision. I know I can painstakingly combine these in PhotoShop/gimp to create one composite ...
2
votes
3answers
1k views

Is it possible to change the point of view of an existing image by extrapolating the missing data automatically?

Is there any software to take an existing picture and to raise up the camera position a little bit for changing the perspectives and the software will recognize how to fill the missing parts?
2
votes
2answers
2k views

Add rain effect to a photo?

I have a photo that I would like to post process to add a rain effect. Can anybody explain how I would go about adding the effect or suggest a good tutorial? Ideally I would be able to use my ...
2
votes
2answers
5k views

How to identify if a photo is photoshopped without looking at its digital code

I found this similar question but it is about finding hints in the digital file :how-to-identify-photoshop-edited-files. I want to know if there is a way to do this without looking at the digital ...
2
votes
2answers
940 views

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

What is the best method for enhancing image quality if a photograph happens to be out of focus? I'm using now unsharp mask but I'm looking for new methods. Perhaps there is one which has better ...
2
votes
1answer
170 views

Watermarking processing proof

There are watermarking technologies in videos that are resistant to transcoding and image resizing. There are no visible artefact, it's rather for content protection and tracing. Is there anything ...
2
votes
1answer
196 views

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

With reference to the below image (on Bing 2015-06-09) something just seems off with the bird's head. Is this a case of bad photo editing or just an unusual angle the bird was photographed from?
2
votes
1answer
22k views

How can I do something like Photoshop's warp tool with open source software? [closed]

Using Photoshop, I can edit an image by using tthe lasso tool and warp tool. I need a open source solution that will operate in similar way. I tried Gimp software, but there is no warp tool in that. ...
2
votes
1answer
547 views

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

I have a problem with setting a pattern on sofas. The image below is a pattern that I set on a sofa: as you can see, the pattern comes from up to down in a straight line. This is wrong; I need it to ...
2
votes
1answer
1k views

Superimposing objects from two different photos taken by two different cameras

I have a bunch of photos from my friend's wedding that were shot with a D5 mark II, that he wants me to add my wife (who couldn't be at the wedding) into a few of them. I found the PERFECT picture ...
2
votes
1answer
898 views

If I want soft focus, should I get the Canon 135mm soft focus lens or do it in Photoshop?

I always read that when possible it's best to "get things right in camera" which I always aim for - so following that line of thinking, would it be worthwhile to get the Canon 135mm f/2.8 soft focus ...
2
votes
1answer
448 views

How would I insert a huge object into a panorama photo with correct position and height?

I want to insert a large object into a panorama photo, in this case a wind turbine. However, I want the object to be at the correct position and it should have the correct height. The area has many ...
2
votes
2answers
572 views

How can I remove all transient objects from multiple photos, leaving only the background? [duplicate]

I have multiple images of (let's say) a busy street. All taken with the exact same angle, and the people are moving around. It stands to reason that if I could compare all images and get only "the ...
2
votes
2answers
2k views

How can I do automatic background subtraction with a reference image in Photoshop?

I plan on taking a series of pictures of people in a room, keeping a fixed position of the camera, and later remove the background. Essentially, although the background is complicated, it should be ...
2
votes
1answer
2k views

How can I change colour of reflection/shadows to blue, to match the water?

Original Pic: I have taken and edited the above shot in Lightroom to give an evening effect. I would like to remove the green reflection of trees on the lake to darker blue or the color of water on ...
2
votes
2answers
1k views

How do I link selections on two different layer masks in Photoshop?

I've created my own action in Photoshop CS5 and in my example I am recolouring grass. The action stops for the user to paint a selection on a layer mask and continues with a colour balance ...
2
votes
0answers
235 views

Why aren't dct quantization tables symmetrical [closed]

Many image compression standards use the DCT transform to convert spacial data into frequency data. The DCT coefficents are then quantized based on the estimated importance of a certain frequency to ...