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03/07/2009 01:21:37 PM · #1 |
this is one thing that's always confused me about the rules here.
say i photographed a piece of graph paper. the image might end up with the grid squares perfect in the middle of the image - but distorted at the edges. is it allowed to use the distort or perspective tools ( in advanced editing ) to make the edges right ?
what is considered radical ?
under the you may not section:
Originally posted by currentadvancedrules:
use distortions to create new effects or radically alter objects. |
Message edited by author 2009-03-07 13:22:11.
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03/07/2009 01:27:58 PM · #2 |
| I know a case where the ribboner had skewed the image slightly, so it should be ok, as long as the image isn't "altered radically". But let's hear what the SC has to say. |
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03/07/2009 01:29:45 PM · #3 |
It would be a judgment call on the part of the SC if it got a validation request. However, I think what you are suggesting might be ok and is similar to what I did with this one in the archive shot side challenge:
Original: Edit:  |
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03/07/2009 01:32:36 PM · #4 |
that's exactly what i'm talking about - but it was for a side challenge...
Originally posted by Yo_Spiff:
It would be a judgment call on the part of the SC if it got a validation request. However, I think what you are suggesting might be ok and is similar to what I did with this one in the archive shot side challenge:
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03/07/2009 01:47:36 PM · #5 |
Use of "distort>lens correction" filter in PS to correct for barrel distortion and vignetting is always legal in advanced editing if the result is to *correct* flaws in the lens. It is legal up to a point if you *introduce* distortion, but you can go too far and get dinged for it.
Use of skew and perspective tools is legal in advanced also, always subject to the restriction that if you totally alter the appearance of the image that isn't gonna fly. I have used the perspective tool for the purpose of making a distant BG smaller and had it validated. The effect was relatively subtle; if you saw the images sequentially you might not notice it but side-by-side it was definitely noticeable.
I use the skew tool a LOT to clean up slightly misaligned verticals or horizontals, which is pretty much what it is designed for, and no problems yet.
I'm not sure how you would fare if you took a severely keystoned shot of a lighthouse from up close then used perspective to radically square it up; I assume there comes a point where they draw the line, but I don't know.
R.
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03/07/2009 01:56:22 PM · #6 |
sounds like what i am looking for. merely looking to right the edges of something like i mentioned in my original post. altered yes - dramatically... i don't think so.
i can rotate to right either vertical or horizontal. but then need to fix the other axis...
Originally posted by Bear_Music:
Use of "distort>lens correction" filter in PS to correct for barrel distortion and vignetting is always legal in advanced editing if the result is to *correct* flaws in the lens. It is legal up to a point if you *introduce* distortion, but you can go too far and get dinged for it.
Use of skew and perspective tools is legal in advanced also, always subject to the restriction that if you totally alter the appearance of the image that isn't gonna fly. I have used the perspective tool for the purpose of making a distant BG smaller and had it validated. The effect was relatively subtle; if you saw the images sequentially you might not notice it but side-by-side it was definitely noticeable.
I use the skew tool a LOT to clean up slightly misaligned verticals or horizontals, which is pretty much what it is designed for, and no problems yet.
I'm not sure how you would fare if you took a severely keystoned shot of a lighthouse from up close then used perspective to radically square it up; I assume there comes a point where they draw the line, but I don't know.
R.
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03/07/2009 02:00:48 PM · #7 |
Sounds like a textbook "allowed usage" to me.
R.
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