How to remove background

Discussion in 'Digital Darkroom' started by shahdad_samimi, Jun 4, 2008.

  1. I'm not sure how to exactly describe what it is I want to do but basically I want to take close up pictures of SLR camera's from my camera collection with my digital cameras and want to have the edited them so there is background or a white background? How do you do that? Just like the example I have uploaded Thanks
    00Piau-47127584.JPG
     
  2. if you just want white use a white background with lights on it to overexpose it if you want to cut it out using photoshop make a workpath like this
    00Pibu-47133584.jpg
     
  3. if i had to do that shot and I did not have a studio, i'd get some white gator board or flexible white plastic/plexie for the bottom and sides, the white on the sides will help reflect back the light, set the shot up outside, under a slightly hazy sky, use your fill flash if you have it, shoot it, with as few shadows as you can, take the shot into photoshop, select only the background - all the "white" - then reduce the contrast and brighten it, only the background, not the subject..

    You likely will loose the slight shadow under the door, and camera body, but you will have a black camera with a completely white background.

    Keep any eye on your exposure, you want the blacks to be as black as you can get it (you can make it more black in PS but get it as close as you can with your camera) and watch the light on the camera itself try to get it as black, as apposed to gray as you can. . .
     
  4. hmm... well in fact I think I would have a black background instead of a white one.

    I will have at least 6 shots per camera each from a different angel and I have about 100+ cameras.

    Is cutting out the background manually in photoshop the only way? eeek

    Are there a program where you can add the files and it will remove the background automatically?
     
  5. no, but a black camera on a black background, your example is a black camera on white background. . .

    go read the book "light science and magic" if you really want to do this right. . .
     
  6. I am not 100% sure of what you are attempting to acomplish. First, if it was me, I would just shoot the camera collection on a white backdrop to start out.
    If on the other hand, you have photo's of your collection, an wish to remove the background, then many techniques are available to you in CS3 if that is what you are using, I would suggest you look a RusselBrowns site and look at the video way down at the bottom on his site, he has a cowboy that he removes the background and places it with another, using the dodge/burn in conjunction with the channels/b&w. I use this technique all the time an it is excellent way to remove most backgrounds with some difference in contrast, plus you end up with a mask that is from the orginal subject.

    Bob
     
  7. If you want black instead of white, I would overexpose a white background (as described above) and then use the paint bucket in PS to pour in black to replace all of that white with black. Takes but a few seconds per photo.
     
  8. You didn't say whether you had image-processing software to work with or not.<p>
    If not, you have to do it in-camera, which means that you need a white background, something like a sheet of plexiglass or a bit of wire stuck through the background to suspend your object so it doesn't rest on the background and cast shadows, lighting for your object that doesn't make shadows on the background, and very even lighting for the background. The easiest way to do this is make a light tent from something like tracing paper or drafting vellum, stick your camera lens through a hole in it, and illuminate the light tent with floodlights or strobes from outside. This is getting to seem like a bit of a pain, right?<p>If you do have image-processing software, you use it to trace out the contour of your object in a normal photo with a busy background, separate it from that background, and put it on a blank white background. Easy, but more expensive. Google "image compositing in (your image processing software here)."
     

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