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Image enhancement, patent identification

Forensic software discussion (commercial and open source/freeware). Strictly no advertising.
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Re: Image enhancement, patent identification

Post Posted: Thu Mar 09, 2017 8:26 pm

You can try VideoCleaner: videocleaner.com/start.html
VideoCleaner is FREE forensic video enhancement software created for law enforcement, and now available to everyone. Use any Windows computer to process digital images and nearly any video, including some proprietary formats, and VdeoCleaner includes a screen capture tool for everything else.

Or Focus Magic: www.focusmagic.com/
Focus Magic uses advanced forensic strength deconvolution technology to literally "undo" blur. It can repair both out-of-focus blur and motion blur (camera shake) in an image. It is the only software that can significantly recover lost detail from blurry images.

Good luck!
_________________
ICT Security Manager, CHFI, CEH, ECSA, Netherlands 

Thomas
Member
 
 
  

Re: Image enhancement, patent identification

Post Posted: Fri Mar 10, 2017 11:21 am

- Thomas
It is the only software that can significantly recover lost detail from blurry images.

Is it?
I would make an exception for those mentioned in the given thread:
www.forensicfocus.com/...5/#6586815

jaclaz
_________________
- In theory there is no difference between theory and practice, but in practice there is. - 

jaclaz
Senior Member
 
 
  

Re: Image enhancement, patent identification

Post Posted: Wed Mar 15, 2017 9:46 pm

Hi there,
It’s difficult to assess exactly what you require, or what your original source data is, from the original post.

As has already been said, it’s vital that you are working with the native originally recorded material with no added compression or re-capturing.

Also, if you are working with Images originating from Video, then other considerations can be made to increase the overall quality of the enhancement.

There are two stages – Restoration & Enhancement.
Restoration uses a known mathematical model to reverse an observed defect. Deblurring for example.
Enhancement is a visual aid to assist the viewer in observing an image, or part of an image. Adjusting brightness/contrast for example.

The process of restoring, and enhancing, an image must attempt to reverse how the image was created (not always easy..and there are a few exceptions). If we identify the image creation path, and identify when a quality issue occurs, then we can attempt to invert this path, and therefore improve the image.

Magnification, using interpolation, is an enhancement process and is usually only considered after other defects are fixed (There are exceptions to this rule!)
There are a number of different filters for rescaling, and its worth testing each. From the classic Bicubic, to the more bespoke adaptive algorithms that are able to provide much cleaners results, given the right circumstance.

Regardless of what software is used, it must always be remembered that you cannot place something back into an image after it has been discarded through low resolution capturing or high compression. When it’s gone, it’s gone!

What you can do though is use software to assist you in rebuilding the pieces of the puzzle.

I’m the International trainer for Amped Software, developers of FIVE – Forensic Image & Video Enhancement. You were looking for something cheaper than photoshop, and we are purely for the investigatory field, so I won’t take you down a path that won’t help you...

However, when trying other software, consider how the image was created, think of the process you are using – it may just make a difference.
Good luck  

Spready
Newbie
 
 

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