Anomorphic effect

B
Posted By
bixx
Sep 21, 2006
Views
357
Replies
5
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Closed
I have a couple of nice shots I took at the Grand Canyon last week – I’m looking to crop these to 6×4" for photo printing only. There’s some nice edge detail I’d like not to lose.

Is it possible to somehow crop the image to a wider width (ie 8×4") and squeeze the edges somehow, whilst at the same time retaining the correct aspect in the centre 50% portion of the picture? Like creating an anamorphic squeeze as used on 16:9 widescreen movies?

Any help appreciated.
Thanks
P

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A
Aaron
Sep 21, 2006
First of all, what you describe isn’t cropping, it’s resizing or scaling. Second, there is no way you can resize an image in only one direction, losing nothing, without changing the aspect ratio.

If you were willing to lose image area from the top and bottom edges, you could scale the entire image to 8" wide and then crop down to 4" tall.

bixx wrote:
I have a couple of nice shots I took at the Grand Canyon last week – I’m looking to crop these to 6×4" for photo printing only. There’s some nice edge detail I’d like not to lose.

Is it possible to somehow crop the image to a wider width (ie 8×4") and squeeze the edges somehow, whilst at the same time retaining the correct aspect in the centre 50% portion of the picture? Like creating an anamorphic squeeze as used on 16:9 widescreen movies?
Any help appreciated.
Thanks
P


Aaron

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R
Ragnar
Sep 21, 2006
"bixx" wrote in message
I have a couple of nice shots I took at the Grand Canyon last week – I’m looking to crop these to 6×4" for photo printing only. There’s some nice edge detail I’d like not to lose.

Is it possible to somehow crop the image to a wider width (ie 8×4") and squeeze the edges somehow, whilst at the same time retaining the correct aspect in the centre 50% portion of the picture? Like creating an anamorphic squeeze as used on 16:9 widescreen movies?

If I understand you right …

Enlarge the canvas to 8" wide, keeping your image in the middle (‘Crop’ is the wrong term). There is now a blank space either side. Using the marquee tool select the left hand side of your image, but excluding the centre portion that you want to keep.
Use Edit/Transform/Scale to ‘stretch’ the selection to fill the white gap. Do the same for the right hand side.

If you don’t like the result then a more scientific way would be to apply a Displacement Map but that would take too long to describe here. It would have the advantage of remaining editable, unlike the method I described.

John
K
KatWoman
Sep 21, 2006
"John Rampling" wrote in message
"bixx" wrote in message
I have a couple of nice shots I took at the Grand Canyon last week – I’m looking to crop these to 6×4" for photo printing only. There’s some nice edge detail I’d like not to lose.

Is it possible to somehow crop the image to a wider width (ie 8×4") and squeeze the edges somehow, whilst at the same time retaining the correct aspect in the centre 50% portion of the picture? Like creating an anamorphic squeeze as used on 16:9 widescreen movies?

If I understand you right …

Enlarge the canvas to 8" wide, keeping your image in the middle (‘Crop’ is the wrong term). There is now a blank space either side. Using the marquee tool select the left hand side of your image, but excluding the centre portion that you want to keep.
Use Edit/Transform/Scale to ‘stretch’ the selection to fill the white gap. Do the same for the right hand side.

If you don’t like the result then a more scientific way would be to apply a Displacement Map but that would take too long to describe here. It would have the advantage of remaining editable, unlike the method I described.

John
for that first technique make sure to use feather on the selection for a more gradual transition between the normal and stretched parts……… I have used this to make a model’s leg longer and not distort the top part of her body.
RG
Roy G
Sep 21, 2006
"bixx" wrote in message
I have a couple of nice shots I took at the Grand Canyon last week – I’m looking to crop these to 6×4" for photo printing only. There’s some nice edge detail I’d like not to lose.

Is it possible to somehow crop the image to a wider width (ie 8×4") and squeeze the edges somehow, whilst at the same time retaining the correct aspect in the centre 50% portion of the picture? Like creating an anamorphic squeeze as used on 16:9 widescreen movies?
Any help appreciated.
Thanks
P

Doing what you suggest, you will end up with distorted Image.

What photographers have been doing for years, even before Digital, is making the print on a larger piece of paper, and then cutting the paper to the image size, or to the part of the image they want to keep.

It is generally known as Letterbox shape.

Roy G
U
usenet
Sep 28, 2006
bixx wrote:

I have a couple of nice shots I took at the Grand Canyon last week – I’m looking to crop these to 6×4" for photo printing only. There’s some nice edge detail I’d like not to lose.

Is it possible to somehow crop the image to a wider width (ie 8×4") and squeeze the edges somehow, whilst at the same time retaining the correct aspect in the centre 50% portion of the picture? Like creating an anamorphic squeeze as used on 16:9 widescreen movies?
Any help appreciated.
Thanks

I just did something similar to that by telling Hugin to distort an equirectangular image as if it were a fisheye. Hugin being off-topic on a Photoshop newsgroup. 🙂

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