Fix blurry picture

Posted on 2013-09-21
Medium Priority
Last Modified: 2013-09-22
Please advise quickest way to fix a blurry picture in CS3.
Question by:thuhue
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LVL 84

Expert Comment

by:Dave Baldwin
ID: 39512387
There isn't any way to do that.  Although Photoshop can do some sharpening, it can only work with the info in the picture.  If it is really blurry, you can't do much.
LVL 70

Expert Comment

ID: 39512432
Post your problem picture so I can a look at it
LVL 58

Expert Comment

ID: 39512455
If an image is blurry to start with it will always be blurry no matter what sharpening tools you apply to it.
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LVL 26

Accepted Solution

David Brugge earned 500 total points
ID: 39512495
Just to explain what the others are saying. Early in the space program, NASA engineers found that if they search for areas of an image where there are sudden changes in contrast, most likely these are the edges of something.

If they then make an imaginary line in the middle of this change, and lighten everything up on one side and darken everything on the other, then it appears at a distance to be sharper.

The image, of course is not really sharpened, its just that it appears so.

The sharpening tools in Photoshop and other graphics programs seek out areas of contrast. A setting in the sharpen dialogue lets you set a lower limit on how sensitive the search is. Then you determine how wide a "line" to make, that is, how far out from this imaginary line to proceed. Then you set how much to lighten and darken the areas.

The advanced tools apply these adjustments in different ways, but they all do roughly the same thing.

There are some different techniques that are used by Photoshop masters that can be used in addition to the sharpen tools, but I would like to see a sample of what you want to sharpen before I go into these.
LVL 84

Expert Comment

by:Dave Baldwin
ID: 39512499
What you see them do on TV... is just made up.  It simply doesn't work that way.  They are just entertaining you.
LVL 70

Assisted Solution

Merete earned 1000 total points
ID: 39512523
Well I dunno, I'm an ardent fan of the real life Criminal Investigation and it's amazing what forensics departments can do with imagery enhancement
not that we have their tools, but they can literally rebuild a blurry image pixel by pixel.
But Blurry has many definitions as well, there is a shaky hand, or over exposed, grainy, out of focus.
I don't know if CS3 can achieve this, as it is slightly outdated
Adobe has posted an update with a new blur filter coming, it's interesting for sure.
Adobe MAX 2011 demo unblurs real photos
if anyone is interested in "other" tools
SmartDeblur app
there is two extra pages linked in there
I'd really like a sample of this blurry image to test in the SmartDelur
The latest version here but is only a trial, I suppose like all good things free is going
LVL 84

Expert Comment

by:Dave Baldwin
ID: 39512557
No, I'm sorry, you can't turn a box of big square blobs into a legible license plate.  The information just isn't there.
LVL 70

Expert Comment

ID: 39512563
Lets hope thuhue posts his blurry picture then ;)
LVL 84

Expert Comment

by:Dave Baldwin
ID: 39512587
That's what we're waiting for.

Expert Comment

ID: 39512778
Bring back the days of lith film D11 developer, ruby lith and register pins. They mark real Unsharp Masks. Ok labourious and painstaking


back on track, Meretes solutions are on the money. The Adobe gurus at the CS 6 roadshow showed some inbuilt CS6 inbuilt filters that can analyse the way a camera has moved to remove motion blurs (pans, shakes etc). The results depend on the resolution of the original image, so video feeds are a bit difficult to process.
LVL 24

Assisted Solution

Eirman earned 500 total points
ID: 39512859
Blurred images are either out of focus or caused by camera shake. To reduce the likelihood of blurred imaged in the future, use a camera (eg. later Panasonic models) with auto focus and image-stabilisation.

Image-stabilisation allows for a certain amount of hand movement (jerkiness) when taking pictures or shooting movies. The future Galaxy S5 should have it, which will be the first time it has been squeezed into a phone.
LVL 33

Expert Comment

by:Paul Sauvé
ID: 39513095
@Merete - I get the following message from your third link
Malicious Web Site Blocked

You attempted to access:  http://smartdeblur.net/
This is a known malicious web site. It is recommended that you do NOT visit this site. The detailed report  explains the security risks on this site.

For your protection, this web site has been blocked. Visit Symantec  to learn more about phishing and internet security.
I used to work in Intelligent Transport Systems for the Quebec Government. One of the projects we worked on was Number Plate Recognition (vehicle license plate, if you prefer).

To make a long story short, the cameras we tested had a very low success rate of reading the information. I asked a colleague from Ontario how they managed to use a similar system for billing drivers on a toll road with cameras rather than toll booths. I was informed that they actually hired a bunch of students to read the images to retrieve the information.

So, I think much of what we see on CSI and other TV programs may be more fiction than fact.

I also have used software to sharpen blurry images with limited success.

However, the software proposed by Merete, ID: 39512523, was similar to what I used. I know that there exists forensic software to do this, but can be rather expensive.

Here is one such app: Focus Magic ($45)
Here we demonstrate the power of Focus Magic in it's ability to recover detail from blurred images.
Finally, if you are scanning a slightly blurred document, use a lower dpi (150 - 200) and you get better OCR results than a higher one (300 +).
LVL 70

Assisted Solution

Merete earned 1000 total points
ID: 39513597
Hello paulsauve
I'm using Chrome and get no such message?
Which browser is reporting this?
 Try Chrome or Firefox to determine /
For your protection, this web site has been blocked. Visit Symantec  to learn more about phishing and internet security
That is an identity protection message.
I went to Norton to see what they had to say
Norton Antiphishing feature, where if something about the webpage content looks suspicious, the page gets submitted for analysis.  

I downloaded the tool from here and tested it.
I donot see any adds on there also it is a .net website.
I have linkscanner with AVG and it see nothing.
This what is on the page
Smart Deblur web pageshows featureshow it worksI have experienced similar on some sites where others get nothing as well.
Even Experts Exchange QnA pages have been marked as malicious and blocked to protect my identity
Any other experts getting a problem.

But I'll look into it by sending them an email.
What Anti Virus do you use paulsauve
Norton internet security?

For me my best defence against malware is making sure that my windows is up to date, and that Java is not installed.
I removed it last year.
PS I have sent them an email/
Hope thuhue doesn't mind the extra comments.
Regards Merete
LVL 33

Expert Comment

by:Paul Sauvé
ID: 39513714
Hi Merete,

Yes - I'm using the latest version of Norton 360! I have had this happen in the past as well, 'False positive' on a site that had been hacked in the past & since been cleaned up. Thanks for the info!

LVL 70

Expert Comment

ID: 39513978
Thank you thuhue, would still have loved to try your image.

@Paul, I have a response from the web site
Is there anything you would like me to respond to?
Or just let them know your response from above?
You don't have an email address I could send this so am just borrowing a little space here again.

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