Computer Graphics with Photoshop

Author

Focus correction

P.McCartney

2006-07-10, 6:17 pm

Thanking anyone for a reply. PSCS2

Is there a way to bring photos out of focus into focus?

Regards
Peter

Kingdom

2006-07-10, 6:17 pm

"P.McCartney" <mmc65479@bigpond.net.au> wrote in news:JGdjg.8064$ap3.7647
@news-server.bigpond.net.au:

> Thanking anyone for a reply. PSCS2
>
> Is there a way to bring photos out of focus into focus?
>
> Regards
> Peter
>
>
>

No

--
'Mirror mirror on the wall who is the prettiest of them all?'
'Snow White you dirty XXXXX and don't you forget it!'

Andrew Morton

2006-07-10, 6:17 pm

P.McCartney wrote:
> Thanking anyone for a reply. PSCS2
>
> Is there a way to bring photos out of focus into focus?

In theory, yes. In practice, not necessarily very well.

Well, something like http://www.hamangia.freeserve.co.uk/ might help a bit.

Andrew

Rudy Benner

2006-07-10, 6:17 pm

"P.McCartney" <mmc65479@bigpond.net.au> wrote in message
news:JGdjg.8064$ap3.7647@news-server.bigpond.net.au...
> Thanking anyone for a reply. PSCS2
>
> Is there a way to bring photos out of focus into focus?
>
> Regards
> Peter
>

Can the dead be brought back to life?

Actually, if its not too bad, you can sometimes fix it enough to fool the
eye. Focus Magic has helped me a few times, especially the motion blur
utility. It will never be 'right'.

Daemon

2006-07-10, 6:17 pm

> Is there a way to bring photos out of focus into focus?

Shoot the photos again, this time be careful.

--
--
"Ever Vigilant!"
Daemon

P.McCartney

2006-07-10, 6:17 pm

Yeah I suppose I asked for that, but anyway thanks for those that were
helpful.
Peter

"Daemon" <daemonBLABLA@REMOVEevo.hr> wrote in message
news:e6k2ba$e8i$1@ss408.t-com.hr...
>
> Shoot the photos again, this time be careful.
>
>
> --
> --
> "Ever Vigilant!"
> Daemon
>

MetaMorph

2006-07-10, 6:17 pm

The answer is YES
You need access to high level (proprietry/military?) software though !

I saw a demo of this on the UK TV program 'Tomorrows World' a few years ago -
a bluured image of a cyclist taken against a stationary background. There is
apparently software that can compare different parts of the image and apply
correction to the stuff thats blurred from the known stationary material in the
image. The demo I saw was stunning... I havemt heard anything of it since..

:-(

tacit

2006-07-10, 6:17 pm

In article <T7ojg.62629$Cv1.26163@fe07.news.easynews.com>,
MetaMorph <aftmid@tpg.com.au> wrote:

> I saw a demo of this on the UK TV program 'Tomorrows World' a few years
> ago -
> a bluured image of a cyclist taken against a stationary background. There is
> apparently software that can compare different parts of the image and apply
> correction to the stuff thats blurred from the known stationary material in
> the
> image. The demo I saw was stunning... I havemt heard anything of it since..

Back in the day, I used to spend a lot of time doing software demos for
trade shows and the like.

You can do some really, really stunning, amazing, unbelievable things in
a software demo...by choosing your demo images very, very carefully, and
setting up everything so that it's absolutely optimal for your
particular software. Real-world performance, on the other hand...not
usually so impressive.

Fixing motion blur in an otherwise sharp image is a different task than
fixing an image that is out of focus. With motion blur, if you have a
high bit-depth image, you can do a fast Fourier transform on the image,
find the parts that stand out, and apply localized correction to
them--having a 16-bit-per-channel image (or higher) really helps with
that. An out-of-focus, probably JPEG-compressed image from a consumer
digital camera, on the other hand, is a whole 'nother can of worms...

--
Art, photography, shareware, polyamory, literature, kink:
all at http://www.xeromag.com/franklin.html
Nanohazard, Geek shirts, and more: http://www.villaintees.com

Johan W. Elzenga

2006-07-10, 6:17 pm

MetaMorph <aftmid@tpg.com.au> wrote:

> The answer is YES
> You need access to high level (proprietry/military?) software though !
>
> I saw a demo of this on the UK TV program 'Tomorrows World' a few years
> ago - a bluured image of a cyclist taken against a stationary background.
> There is apparently software that can compare different parts of the image
> and apply correction to the stuff thats blurred from the known stationary
> material in the image. The demo I saw was stunning... I havemt heard
> anything of it since..

You've watched too many episodes of CSI.

--
Johan W. Elzenga johan<<at>>johanfoto.nl
Editor / Photographer http://www.johanfoto.nl

profe.ivan

2006-07-10, 6:17 pm

Ok, what's been said in this topic is true: actually you can't focus an
image that it's out of focus. What you can do is SIMULATE the effect of
focus by choosing Filter>Sharpen>UnsharpMask or Smart Sharpen. What
this command does is to add more contrast on the "borders"of the image
, that is where there are color changes.

Hope this helps
P.McCartney wrote:
> Thanking anyone for a reply. PSCS2
>
> Is there a way to bring photos out of focus into focus?
>
> Regards
> Peter

MetaMorph

2006-07-10, 6:17 pm

You've watched too many episodes of CSI.

<<
Er no I haven't - I can't stand american TV shows!

The stuff I Saw on TW was real enough and there were several examples of
recovering information in a wide variety of blurred images... I can't imagine
that this stuff isnt easy these days. We can actively correct image blur by
using laser guide stars in the Active and adaptive Optics systems I am familiar
with - the US military was doing this 20 odd years ago and its now in the public
domain... Just need a Windows version of whatever it is !!!!
....
BTW - I do have my jet pack - I use it every day!!

:-)

John McWilliams

2006-07-10, 6:17 pm

tacit wrote:
> In article <T7ojg.62629$Cv1.26163@fe07.news.easynews.com>,
> MetaMorph <aftmid@tpg.com.au> wrote:
>
>
> Back in the day, I used to spend a lot of time doing software demos for
> trade shows and the like.

So, you're one of those guys that made me buy xyz software, huh???!

<s>.
>
> You can do some really, really stunning, amazing, unbelievable things in
> a software demo...by choosing your demo images very, very carefully, and
> setting up everything so that it's absolutely optimal for your
> particular software. Real-world performance, on the other hand...not
> usually so impressive.

That last sentence shows flair in understatement....
>
> Fixing motion blur in an otherwise sharp image is a different task than
> fixing an image that is out of focus. With motion blur, if you have a
> high bit-depth image, you can do a fast Fourier transform on the image,
> find the parts that stand out, and apply localized correction to
> them--having a 16-bit-per-channel image (or higher) really helps with
> that. An out-of-focus, probably JPEG-compressed image from a consumer
> digital camera, on the other hand, is a whole 'nother can of worms...
>

You can give the appearance of the image being more in focus than it is
by shrinking it, and applying USM, where your mileage will be all over
the map....

--
john mcwilliams

P.McCartney

2006-07-10, 6:17 pm

Thank You
Regards Peter

"profe.ivan" <profe.ivan@XXXXXXXXXX> wrote in message
news:1150200976.634325.278930@h76g2000cwa.googlegroups.com...
> Ok, what's been said in this topic is true: actually you can't focus an
> image that it's out of focus. What you can do is SIMULATE the effect of
> focus by choosing Filter>Sharpen>UnsharpMask or Smart Sharpen. What
> this command does is to add more contrast on the "borders"of the image
> , that is where there are color changes.
>
> Hope this helps
> P.McCartney wrote:
>

Bill K

2006-07-10, 6:17 pm

P.McCartney wrote:
> Thanking anyone for a reply. PSCS2
>
> Is there a way to bring photos out of focus into focus?
>
> Regards
> Peter
--
I would tell everyone it's soft focus as a form of artistic license
Bill