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Photoshop techniques

Unbluring?


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freakyclown
1/21/2005 3:49:51 PM


Status: Student Council
Unbluring?

Hi guys (and girls),

Right we all have pictures that are less than perfect...
i have a photo that was taken in a mirror and unfortunatly the dust and dirt on the mirror caught the focus which means the subject in the reflection is well out of focus, so onto the killer question!

What software/tricks do people know about to counter this?

Obviously the unsharp mask and sharpening tools in PS are lacking and i did try a prog called "unshake" but again thats for small bluring...so over ot you lot!

Bring on the best unbluring software!

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Indigodingo
Republicans
1/21/2005 4:40:57 PM


Status: Director of the CIA
good luck!

If you discover a way to do this let me know....there are millions of source pics I would like to use but they are too blurry for my tastes. Software has not reached the point where it can perform a miracle...yet.

I do hear that there is a new way to scale images larger with near perfect results that is in development over at Adobe. I think they're going to release it with the next version of PS. Thats the buzz anyway.
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freakyclown
Independents
1/21/2005 4:47:59 PM


Status: Student Council
well i just tried out another package...called Focus Magic...and it produces good(ish) results but i found you HAVE to resize the picture to half the size to take away the harshness...but still..the pic i have is VERY unfocused!! and this software does really well.

Any more ideas?

Indi i shall look into this adobe rumor!

*update*
just tried a plugin for PS called FocusFixer..dont waste your time!


[Edited by User on 1/21/2005 5:00:13 PM]
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Hipnoart
Democrats
1/21/2005 8:50:35 PM


Status: Secretary of State

On 1/21/2005 4:40:57 PM, Indigodingo said:
good luck!

If you discover a way to do this let me know....there are millions of source pics I would like to use but they are too blurry for my tastes. Software has not reached the point where it can perform a miracle...yet.

I do hear that there is a new way to scale images larger with near perfect results that is in development over at Adobe. I think they're going to release it with the next version of PS. Thats the buzz anyway.




Indi Two Words
Exensis Smartscale
Blows em up nice and chunky, you might have to do some blend mode tricks to clean it up a bit if the original pic is very small, but great stuff.

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freakyclown
Independents
1/22/2005 3:55:56 AM


Status: Student Council
Scaling up image size/rez doesnt really help me...as it just gives me a very large unfocused picture

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freakyclown
Independents
1/22/2005 12:13:05 PM


Status: Student Council
Well after some crazy hours trying to get this unfocused picture to represent something like a normal photo and trying what seems to be almost every technique and plugin/software around...

i have the following recommended ideas/plugins...

Fast Fourier Transformation for noise reduction of repeated patterns
"Calibration and Deconvolution Technologies V1.70" used for the obvious titulatory methods on astronomy photos
"Grain Surgery 2"
and "focusmagic"

i am working on a methodology to get the best results...ill kepp you all posted!
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Indigodingo
Republicans
1/22/2005 1:19:09 PM


Status: Director of the CIA
The problem is that if an image is blury to begin with then it's missing information which would help give the image more detail and greater sharpness. In essence what you're asking the software to do is to create information from scratch and add it to the picture in a predictable or expected way and thus making it sharper. The amount of variables that the software would have to consider to correct the image in that way is astounding. It's much the same thing, and much easier for software, when up sized images look pixelated and software is used to create pixels to "fill in the gaps" so to speak. It's a similar process but the blurry image is at a definite disadvantage because the software is working with even less information, or variation of the pixles from the start.

It looks like you're on the right track. I'd think whatever NASA and other astronomers use to correct their pictures is your best starting point. Still, look at the pictures they release...some are great but the blury ones still look blury.

That picture you're trying to fix must be very valuable to you if you're putting so much effort into it. I seriously wish you luck and lookforward to what you come up with...make sure to post before and after shots.

The best solution is to take better pictures

[Edited by User on 1/22/2005 1:22:05 PM]
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freakyclown
Independents
1/22/2005 2:31:22 PM


Status: Student Council
Right I think i have worked out a solution that for this particular picture works very well!!

If someone has a blurry pic they would like to donate to me..as a trail, id be more than glad to share my ideas/ways etc..

Indi, yes its a photograph of my sister, so unfortunatly I will not share this one.

(for those intrested the method I used is below)

Adjust shadow/highlight in CS
Run result through a maximum entropy method deconvolution
run the rsulting image through a Fast Fourior Transformation and then tweak the results in CS till happy

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Chris
Democrats
2/21/2005 6:17:32 AM
Status: Joe Taxpayer
This works sometimes:

Dupe the whole layer, filter]other]high pass and set the radius to 2.5 and then set the duped and highpassed layer to overlay.

Note, that is for version 7.0 (I havent had a chance to play with CS so I cant be sure that the menus are the same

hope that helps, though!
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Chris
Democrats
2/21/2005 6:19:57 AM
Status: Joe Taxpayer
Also just to add, the intensity doesnt HAVE to be 2.5, play around with it, just make sure to save a fresh cpy before you experiment
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MaestroCalhoun
Independents
2/23/2005 2:37:04 AM


Status: Student Council

On 2/21/2005 6:17:32 AM, Chris said:
This works sometimes:

Dupe the whole layer, filter]other]high pass and set the radius to 2.5 and then set the duped and highpassed layer to overlay.

Note, that is for version 7.0 (I havent had a chance to play with CS so I cant be sure that the menus are the same

hope that helps, though!



I taught you that and you set the high passed layer to "soft light"
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Chris
Democrats
2/23/2005 4:43:20 PM
Status: Joe Taxpayer

On 2/23/2005 2:37:04 AM, MaestroCalhoun said:

On 2/21/2005 6:17:32 AM, Chris said:
This works sometimes:

Dupe the whole layer, filter]other]high pass and set the radius to 2.5 and then set the duped and highpassed layer to overlay.

Note, that is for version 7.0 (I havent had a chance to play with CS so I cant be sure that the menus are the same

hope that helps, though!



I taught you that and you set the high passed layer to "soft light"


Yeah well, overlay is nicer. I just taught you that.
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Eat'cho steak!


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