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05/03/2005 04:51:21 AM · #1 |
| Under the basic editing rules, that is? I can't find any mention of it, so i presume it's okay if the whole image is skewed and then cropped. Is that correct? |
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05/03/2005 05:05:55 AM · #2 |
Originally posted by boomer:
Under the basic editing rules, that is? I can't find any mention of it, so i presume it's okay if the whole image is skewed and then cropped. Is that correct? |
This has been debated in the past, and as skewing involves the physical movement of picels it can not be used under basic editing |
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05/03/2005 06:26:15 AM · #3 |
Originally posted by Artan:
Originally posted by boomer:
Under the basic editing rules, that is? I can't find any mention of it, so i presume it's okay if the whole image is skewed and then cropped. Is that correct? |
This has been debated in the past, and as skewing involves the physical movement of picels it can not be used under basic editing |
Would this mean, then, that the 'fixing' of crooked horizons is not legal under Basic editing rules?
I would have assumed this to be legal, as the pixels are not being moved relative to one another. This is only the same as rotating an image from portrait to landscape, something that many cameras do not do automatically, as they may not have orientation sensors.
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05/03/2005 06:31:28 AM · #4 |
fixing a cooked horizon, can be solved by rotating the image.
Rotating the image is legal, as it does not change the relationship of the pixels with each other.
Skewing changes the relationship of the pixels with each other as it moves pixels around, and for this reason has been decided as not allowed under basic editing. |
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05/03/2005 06:39:41 AM · #5 |
Artan is correct, skewing, defined as taking a rectangular crop and shifting the top or bottom left or right to make it a parallelogram, is not legal in masic, hwowever rotation is. I think it's actually rotation th OP was referring to, given the reference to tilted horizons.
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05/03/2005 07:21:42 AM · #6 |
Originally posted by Artan:
fixing a cooked horizon, can be solved by rotating the image.
Rotating the image is legal, as it does not change the relationship of the pixels with each other.
Skewing changes the relationship of the pixels with each other as it moves pixels around, and for this reason has been decided as not allowed under basic editing. |
Sorry, I misinterpreted it as rotating.
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05/03/2005 11:16:12 AM · #7 |
Originally posted by AJAger:
Originally posted by Artan:
fixing a cooked horizon, can be solved by rotating the image.
Rotating the image is legal, as it does not change the relationship of the pixels with each other.
Skewing changes the relationship of the pixels with each other as it moves pixels around, and for this reason has been decided as not allowed under basic editing. |
Sorry, I misinterpreted it as rotating. |
I'm the OP, and I wasn't talking about rotating. I was talking about skewing, to address issues like leaning buildings, etc.
I've read all the responses here and still don't find anything in the rules that addresses the use of skewing. I wasn't here for the debate earlier, sorry. I've been away from the site for a while.
Anyway, can someone point me to the part of the rules that applies to this? Thanks! |
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05/03/2005 11:27:19 AM · #8 |
The basic rules state:
Post-shot Adjustments may be made to your image in a photo editing program, so long as the modification is applied to the whole image. This includes levels, conversion to black and white, hue/saturation, sizing/rotating, curves and cropping... (emphasis added)
I do not consider skewing to be either sizing OR rotating. Rather, I see it as a manipulation of the image and would not consider that legal.
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05/03/2005 11:33:22 AM · #9 |
.
Message edited by author 2005-05-03 12:19:34. |
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05/03/2005 11:42:08 AM · #10 |
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05/03/2005 11:42:14 AM · #11 |
Just to point out a few technical issues with the current argument: --
from everything that I have read on the forum's most people use a bi-cubic resize, that in itself is a 2-D transformation. If the editing rules are interpreted strictly as they are worded at the moment then you are not applying the same transformation throughout the image. You are instead of applying many small transformations across the entire image. These transformations are however all different.
Rotating would be more legal as you have to work back from the result to the original. I would however be surprised if these days the result did not come from a bi-cubic interpolation. Therefore you are again using multiple transformations that are not picture wide.
There is therefore very little difference between especially a resize and a skew, and there is probably minimal difference in the implementation of rotation and a skew.
Just to get you boffins thinking.
Maybe it's time for a rewording of the rules to be more explicit about this particular issue.
Cheers. |
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05/03/2005 11:48:16 AM · #12 |
Skewing is NOT a 3D transformation, it is only a 2-dimensional act.
Frankly, I have long thought the Basic Rules are poorly worded and in conflict.
The first part:
"Post-shot Adjustments may be made to your image in a photo editing program, so long as the modification is applied to the whole image."
Would lead a user to believe that ANY modification so long as it is applied to the whole image. Technically, the wording would allow for emboss, pinch pull, etc.
Then the following text seems to be what is adhered too...
"This includes levels, conversion to black and white, hue/saturation, sizing/rotating, curves and cropping..."
It'd be much better if it was worded similar to the following:
"The following post-shot adjustments may be made to your image (levels, conversion to black and white, hue/saturation, sizing/rotating, curves and cropping) so long as the modification(s) are applied to the whole image."
[[[ I believe this is what DPC is in actuality trying to say. And NOT the above. Because there are tons of effects that are applied to the whole image. You could use an impressionist filter, etc. These can be applied to the entire photo.]]] |
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05/03/2005 11:55:37 AM · #13 |
(Edit to remove me being a cranky PITA! Sorry) :)
Message edited by author 2005-05-03 12:44:51. |
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05/03/2005 11:57:26 AM · #14 |
Think of it this way... cropping, scaling and rotations are overall adjustments. You could make these kinds of changes with a flat print on a Xerox copier. Skewing and perspective adjustments are uneven modifications that stretch or distort the image like rubber. I don't think those are allowed in Basic editing.
Message edited by author 2005-05-03 11:58:11. |
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05/03/2005 12:01:41 PM · #15 |
It is a shame really, as skewing is about the best way to fix a crooked horizon. Far better than rotating in most cases.
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05/04/2005 12:53:40 AM · #16 |
Originally posted by Gringo:
Resize
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Is asymmetrical resizing allowed??
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