Transform in PS 7

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Fergie
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Joined: Jan 9 2001

[IMG]http://fergie.sitesled.com/07-Hume-(The-Making-of-Scot.jpg[/IMG]

The above photo was taken with the camera's micro mode. As you can see, the edges of the book 'bulge' in the middle.
I have tried the various transform options in PS7 to corect this problem but without success.
Can anyone tell me how to sort out and correct this distortion.
I have tried a long shot using the zoom lens, but the micro setting gives the clearer image.

Cheers.

               
                  Fergie
There's only one eF in Ferguson

I now seem to spend a lot of time arguing with inanimate objects

Alan Craven
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Joined: Jan 26 2001

In Photoshop Elements there is a Pinch filter in the Distort section of the filters menu which will do the trick. I am sure Photoshop itself will have the same filter.

I find that you need a very gentle touch or you get a waspy waist, rather than your barrel distortion!

You will need a mere 2 or 3% at most.

Mick Wells
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Joined: Dec 13 2000

I don't have PS7 but have CS2, under Filters - Distort I have Lens Correction which I used on the above picture which made an improvement.But could not work out how to add image to this reply as you have. How is it done?
If you would like to email your picture i could have a go for you if that helps

Mick: DV500, XP+SP2, P4 3.0ghz, 1GB Ram,

Fergie
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Joined: Jan 9 2001

Alan :- Tried the ‘pinch ‘ option but to get the edges of the book any straighter was causing too much distortion in the central areas of the image
Thanks for pointing me in that direction though.

Mick :- PS7 has no ‘lens correction’ option. It sounds like the exact tool for the job so I will have to find out more about CS2.
E-mailing a photo to you wouldn’t be of much help as I have some twenty odd similar book photos all requiring the same treatment. But thanks for the offer.
I’m sure there are folks on this forum who can explain how to post your own pictures better than I can, and as this very same subject was covered just weeks ago, perhaps someone can locate that thread and post the address here.

Cheers.

               
                  Fergie
There's only one eF in Ferguson

I now seem to spend a lot of time arguing with inanimate objects

harlequin
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Joined: Aug 16 2000
Mick Wells wrote:
I don't have PS7 but have CS2, under Filters - Distort I have Lens Correction which I used on the above picture which made an improvement.But could not work out how to add image to this reply as you have. How is it done?
If you would like to email your picture i could have a go for you if that helps

if you select reply , and then advanced , you get a screen which has some icons.
one looks like a mountain in a yellow box.

click on it and tell it the url to the picture you want to add

so to add "http://www.harlequin.demon.co.uk/pictures/not_moving.gif"

you get

Gary MacKenzie

sepulce@hotmail.com ( an account only used for forum messages )

Thinkserver TS140 , 750ti Graphics card  & LG 27" uws led backlight , Edius 8

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tom hardwick
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Joined: Apr 8 1999

Modern camcorder zooms all seem to give pretty awful barrel distortion in the macro and wide-angle mode, and my Z1 is just as bad.

Nope, no mountain in a yellow box is offered to me Garry.

tom.

Alan Craven
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Joined: Jan 26 2001

I think you have to go to your personal profile and edit your options first. Under Miscellaneous Options you have to select Standard Editor to get the full range of posting options

PaulD
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Joined: Aug 31 2002

Hi
Older versions of Photoshop have a Filters>Distort>Spherize option, which makes changes only in a circle area in the centre of your rectangular image window.

To get this to operate uniformly over the whole of your rectangular book image you have to temporarily enlarge the Canvas Size of your image until it all fits within the Spherize circle, then apple a slight negative percentage tweak to get rid of the barrel distortion, then resize your Canvas to the original dimensions.

tom hardwick
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Joined: Apr 8 1999

Thanks for that Alan, and sorry about the spelling Gary.

Right, here's a little test to show you how much your camera barrel distorts. Set up your camera perpendicular to a flat screen TV, so:

Then have a look at your viewfinder:

This result is from a £3300 camera, so your mileage may vary.

tom.

tom hardwick
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Joined: Apr 8 1999

[IMG]"http://www.fortvir.net/gallery/v/tom-s-photo-album/Barrel+distortion+result.jpg.html"[/IMG]

tom hardwick
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Joined: Apr 8 1999

Nope, can't seem to get it to work.

Alan Craven
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Joined: Jan 26 2001

No, I can't make it work with your image, Tom. I think the problem is that your URL is for the whole page, where we need just the image - Gary will probably soon be along to correct me on this. I am no expert, I went through this a while ago, with Fergie's and Gary's help.

At least you have your own personal Andes icon now, though?

PaulD
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Joined: Aug 31 2002
Fergie
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Joined: Jan 9 2001

Tom's image (?)

               
                  Fergie
There's only one eF in Ferguson

I now seem to spend a lot of time arguing with inanimate objects

Fergie
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Joined: Jan 9 2001

Tom, When you post your url, try deleting the full stop and the letters htm that follow the letters jpg at the end of the url.

Worth a try and it might work (or not) :confused:

Cheers.

               
                  Fergie
There's only one eF in Ferguson

I now seem to spend a lot of time arguing with inanimate objects

Alan Craven
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Joined: Jan 26 2001

I've had a little play with a screen grab of your image, Fergie. Somewhere between 5 and 7% pinch improves the shape no end. Though, I agree it is by no means perfect even then.

Unfortunately you do not seem to be able to adjust the area over which the filter is applied.

Alan Craven
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Joined: Jan 26 2001

Yes, there is a way to select the area over which the pinch is applied - you simply use the marquee tool to select the area.

If you apply 5% pinch overall, you can then remove more of the bloat by applying smaller degrees of pinch to selected areas.

Fergie
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Joined: Jan 9 2001

I'll give that a go Alan

Cheers

               
                  Fergie
There's only one eF in Ferguson

I now seem to spend a lot of time arguing with inanimate objects

tom hardwick
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Joined: Apr 8 1999

tom hardwick
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it worked for you fergie, but not for me.

Fergie
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Joined: Jan 9 2001

http://www.fortvir.net/gallery/v/tom-s-photo-album/Barrel+distortion+test+.jpg.html
http://www.fortvir.net/gallery/v/tom-s-photo-album/Barrel+distortion+test+.jpg
I lifted the two url's above from the properties box after clicking on your two wee boxes with the red crosses. And as you can see, they dont work

http://www.fortvir.net/gallery/d/1332-2/Barrel+distortion+result.jpg
This url, which does work, came frome your web page and clicking on the photo you are trying to display. Try clicking on the photo and not the page, to get the properties option.

This is all very mysterious ???

Cheers.

               
                  Fergie
There's only one eF in Ferguson

I now seem to spend a lot of time arguing with inanimate objects

tom hardwick
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Joined: Apr 8 1999

Fergie
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YEEEeeee HAAAaaaa. :) :) :)

               
                  Fergie
There's only one eF in Ferguson

I now seem to spend a lot of time arguing with inanimate objects

Alan Craven
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Joined: Jan 26 2001
Alan Craven wrote:
No, I can't make it work with your image, Tom. I think the problem is that your URL is for the whole page, where we need just the image - Gary will probably soon be along to correct me on this. I am no expert, I went through this a while ago, with Fergie's and Gary's help.

Ye gods, Fergie, so I was right after all!

You and Gary must have taught me well!

tom hardwick
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Joined: Apr 8 1999

Let's go for a couple of celebratory beers, Fergie.

Fergie
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Joined: Jan 9 2001

Or even a couple of wee drams

(Big drams would be a better idea though :D )

               
                  Fergie
There's only one eF in Ferguson

I now seem to spend a lot of time arguing with inanimate objects

Fergie
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Joined: Jan 9 2001

Just to get back to the original topic.:p

Alan :- Tried the marquee tool and pinch. Not perfect, but a marked improvement.

Cheers

               
                  Fergie
There's only one eF in Ferguson

I now seem to spend a lot of time arguing with inanimate objects

Alan Craven
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Joined: Jan 26 2001

Good, I'm pleased about that. It seemed to me when I had a play that the quality of the result was going to be down to the skill of the user to a far greater extent then most of the Photoshop tools.

Fergie
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Joined: Jan 9 2001

Also using the marquee tool, I copied a long thin strip of the background and moved it to slightly overlap the edge of the book.
I was quite pleased with that result.

(All I have to do now, is remember how I did it :rolleyes: )

Cheers.

               
                  Fergie
There's only one eF in Ferguson

I now seem to spend a lot of time arguing with inanimate objects

Chris.
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Joined: Nov 5 2000

There's quite a few third party lens distortion correction plug-ins for Photoshop. Might even be one with a trial period long enough for you to do all your books without having to register. Don't get me wrong I'm not saying you shouldn't register software, but if you're going to upgrade to CS2 anyway you won't have any use for the plug-in at that point.

A Google search for Photoshop Lens Plug-In should find what you need.