Can out of focused pics be repaired once in the PC?

Isn't it possible to somehow measure the distortion for a particular
lense, using a known calibration pattern that is photographed and then
apply a system-theory approach, i.e. treat the camera as a black box?
Jos

wrote in message
oups.com...

Isn't it possible to somehow measure the distortion for a particular
lense, using a known calibration pattern that is photographed and then
apply a system-theory approach, i.e. treat the camera as a black box?
Jos

Only in the movies.

wrote in message
oups.com...

Isn't it possible to somehow measure the distortion for a particular
lense, using a known calibration pattern that is photographed and then
apply a system-theory approach, i.e. treat the camera as a black box?
Jos

Only in the movies.

"Mark²" mjmorgan(lowest even number wrote in message
news:6FUtd.422871$a85.304648@fed1read04...

wrote in message
oups.com...

Isn't it possible to somehow measure the distortion for a particular
lense, using a known calibration pattern that is photographed and then
apply a system-theory approach, i.e. treat the camera as a black box?
Jos

Only in the movies.



Unless you're talking about distortion ONLY...this CAN be done, and focus
can be recovered to a very small degree.
(I read the subject line, which asked only about focus)

"Mark²" mjmorgan(lowest even number wrote in message
news:6FUtd.422871$a85.304648@fed1read04...

wrote in message
oups.com...

Isn't it possible to somehow measure the distortion for a particular
lense, using a known calibration pattern that is photographed and then
apply a system-theory approach, i.e. treat the camera as a black box?
Jos

Only in the movies.



Unless you're talking about distortion ONLY...this CAN be done, and focus
can be recovered to a very small degree.
(I read the subject line, which asked only about focus)

wrote:

Isn't it possible to somehow measure the distortion for a particular
lense, using a known calibration pattern that is photographed and then
apply a system-theory approach, i.e. treat the camera as a black box?
Jos

It depends how out of focus they are and how much you are prepared to
pay to have it done. Deconvolution codes do exist and can work well
enough to be useful on some problems - motion blur for instance.

Usually it is much easier to take the shots again.

Regards,
Martin Brown

wrote:

Isn't it possible to somehow measure the distortion for a particular
lense, using a known calibration pattern that is photographed and then
apply a system-theory approach, i.e. treat the camera as a black box?
Jos

It depends how out of focus they are and how much you are prepared to
pay to have it done. Deconvolution codes do exist and can work well
enough to be useful on some problems - motion blur for instance.

Usually it is much easier to take the shots again.

Regards,
Martin Brown

wrote in message
oups.com...
Isn't it possible to ........treat the camera as a black box?
Jos


No! You only have the information from the distorted picture.
--
For Welsh Military Flying visit .......
www.groups.yahoo.com/group/V-A-S/

wrote in message
oups.com...
Isn't it possible to ........treat the camera as a black box?
Jos


No! You only have the information from the distorted picture.
--
For Welsh Military Flying visit .......
www.groups.yahoo.com/group/V-A-S/

wrote in message
oups.com...

Isn't it possible to somehow measure the distortion for a particular
lense, using a known calibration pattern that is photographed and then
apply a system-theory approach, i.e. treat the camera as a black box?
Jos

There exists a program called "unshake" which will remove the 'other' images
from an image. Another is called "focus Fixer". Much is claimed for focus
fixer but my experience tends to show it is nearly useless. Unshake on the
other hand is only of use when the photo is sharply focused but you moved
the camera. This program actually does work but it's really odd interface
will turn a lot of people off.

Doug