53

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 software-based manipulation (like HDR) is frowned upon by the photography community? Differences from human perception that are due to limitations of the medium ...


34

I agree with apparently everyone else that the "ethics" depend entirely on context. Here are some examples where I think editing is straightforward: 1800s: You could get a "headless portrait" with your head in your lap or on a pitchfork. headless portrait http://www.retronaut.com/wp-content/uploads/2013/01/Headless-Portraits-From-the-19th-Century-3.jpg ...


21

It's a blend of two pictures: one showing a road, and another showing a guy dragging a tarp of approximately the same color and width as the road. In particular, note that the grass around the guy looks subtly different from that around the road. It is pretty carefully done, though: it's pretty hard to see where the transitions are. (Well, except for the ...


21

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 required to be 'photorealistic'. No need for photography to be either! If you find yourself among people who disagree, work within their rules if you find ...


19

There's a tendency these days to think that photo editing is a modern phenomenon, when in fact it's nearly as old as photography itself. How 'ethical' editing is depends on the genre and the expectation of the viewer. One would expect photojournalism to use little editing other than basic exposure adjustment, whereas an artistic landscape or portrait shot ...


17

While technically this isn't a "3D" photo, it does simulate a three-dimensional look by exploiting parallax displacement. Cameras are what we call "monocular" devices, in that they have a single lens system and single sensing device. As such, they are not parallax devices, and cannot sense depth directly...only indirectly via other effects such as depth of ...


16

It's a very clever and effective trick, but provided you have good quality source images it is not that difficult to achieve. You need to overlay the profile and frontal images so they match up at the corner of the right eye and corner of the mouth (shown by the green circles). Then it's a case of blending between two layers along the red line. Certain ...


15

There are several ways to [attempt to] determine the veracity of an image, with respect to whether it represents a unique capture of a single scene: Image data level inconsistencies Certain processing operations result in telltale "signatures" embedded in the data which are often invisible to the eye but may be identified by statistical analysis. The best ...


15

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 manipulate a raw file into a jpeg are much more widespread and well known than those needed to manipulate a raw file into a different raw file. That is probably ...


14

I'm a gallery represented artist and I want my work to stand for what it is when you see it, not the process I went through to make the piece. I don't do things like add sky, not because it is "wrong" but just because it isn't what my vision does. My tools are my camera, my lenses, my tripod, my miscellaneous gear and of course my laptop and host of post-...


12

I'm surprised at all the incorrect answers to this! The technique of converting part of a photo to B&W is known as selective colour (the resulting image is sometimes referred to as a cut-out). There are two ways of doing it in Lightroom (v2 onwards) depending on the effect you're trying to achieve. They're both very easy to use. I'll demonstrate using ...


12

It is all image creation. Please, let me explain. When you take a photo, regardless of the medium used to record it, what you are recording is a virtual image projected by a lens onto a focal plane. The nature, intensity, and direction of the light illuminating your subject, the design of the lens and the focus and aperture settings, the amount of time the ...


11

Yes, this capability exists to some extent, but not through "signing" the image in the normal sense. It's based on the sensor noise patterns. Jan Lukáš, Jessica Fridrich, and Miroslav Golja (and a few others) at SUNY Binghamton have done work relating to two fields - identification of digital cameras using sensor noise patterns and identification of digital ...


11

it depends what you're looking for. 1) File Meta-info: the meta information contained within the file can reveal which s/w saved the photo last (with possible edits). But this can easily be changed afterwards or deleted by another s/w. 2) Image data: now, if you're looking to find out if a photo file has been tempered (edits made to it), you should look ...


10

Yes, they can sign images. This should prove authenticity although a team claims to have cracked Canon's implementation. Another team did the same for Nikon. So this is like most digital security issues, it will prove authenticity or monumental effort to circumvent it ;)


10

There are two distinct steps to producing the images that are frequently labelled "HDR": Exposure blending: merging multiple low dynamic range images into one image with higher dynamic range. Tonemapping: processing that high dynamic range image into a low dynamic range image suitable for viewing on standard [low dynamic range] equipment (such as regular ...


10

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 intended to manipulate a RAW file since it is meant as input to RAW conversion software. Since it is just made of bits like any other digital file one can of ...


10

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 software-based manipulation (like HDR) is frowned upon by the photography community? Because we feel we need to put a line that separates photography from painting ...


9

You could have also just asked me directly, the guy in the picture. ;) But yes, it's simply a profile and a frontal shot combined together, if the angles match it's actually not that hard to do.


9

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 eye to where it's at its strongest will restore it a little, but it doesn't look very natural. Quick attempt, each colour set in the same way, just by eye &...


8

I adopt an "opt out" approach. I assume everything is edited unless it is explicitly stated that this is not the case. I use the same approach, therefore I wont label every photo as being edited, but if I capture something particularly unusual or hard to believe in which case I'll say "this was straight out of camera!", or "this hasn't been composited in ...


8

First you want to start with the best selection possible. Here you have some choices. Select using lasso, quick select (not ideal unless you want to do lots of adjusting). If you do use these, once you've made the best selection you can, click on the Refine Edge button in the tool bar and use the sliders to inteligently adjust your selection. Near the ...


7

In Photoshop, you can access various blurs via the Blur sub-menu in Filters menu. Motion Blur will ask for an angle and an intensity and will blur the entire image (or selection) along that angle making it look like the camera exposed for motion. Radial blur will ask for a point and an intensity and will blur the pixels radially away from that point as if ...


7

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 example I have shifted red channel 10 pixels and green channel 5 pixels from the blue channel. Here is the result with comparison : Shifted one Corrected one ...


7

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 between the camera, the subject and the background. You can achieve the effect by taking your distance from the nearby objects. Technically, cropping a photo ...


7

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 well as the position of each element in the scene relative to the other elements in the scene. When a camera position produces a perspective that makes an object ...


7

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 from were all analog shooters, when I got a digital rebel and shot raw, I always made certain not to manipulate the image in a way that could not be done "for ...


6

There is a tutorial for this effect here. It is for PS but you can still achieve the same look in PS. Here are the basic steps below: Add extra canvas to your photo: Image > Canvas Size add some extra here. The amount is not really important as you will crop at the end. Add Black Layer on top, fill with black. Add Noise. Filter > Noise > Add Noise. Use ...


6

I think the best solution is to first get your client to take her photos differently. This might not be able to be done with existing products, but a simple setup like this one leaves pleasing backgrounds and ones that are easily removable if needed http://www.diyphotography.net/homestudio/cheap-homemade-diy-studio-no-lighting-needed Whilst this might not ...


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