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From: ImageAnalyst <imageanalyst@mailinator.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: How to find similar images
Date: Tue, 2 Dec 2008 20:20:56 -0800 (PST)
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On Nov 29, 10:15=A0am, ImageAnalyst <imageanal...@mailinator.com> wrote:
> On Nov 29, 9:29=A0am, "akshu " <akkire...@gmail.com> wrote:
>
>
>
>
>
> > Hey if u got ans 4 this ans this than plzzzzz reply me........Akshu
>
> > "Yair Altman" <altmany...@gmailDEL.comDEL> wrote in message <f9dggq$lu.=
..@fred.mathworks.com>...
> > > I have a large set of color images. I wish to find a
> > > characteristic number for each of them, so closer numbers
> > > would represent "similar" images (in very loose terms). I'd
> > > like the characteristic to be tolerant to cropping &
> > > resizing and if possible also to rotation, flipping &
> > > saturation. If possible, I'd also like it to be computed
> > > quickly (my set is very large).
>
> > > The ultimate aim is to winnow down the large set to a much
> > > smaller subset of potential matching images, that would then
> > > be inspected manually.
>
> > > Some simple functions that I thought of were the grayscale
> > > rms/mode/std/kurtosis/skewness. Could anyone please comment
> > > on which of these functions (or any other) would be best for
> > > my needs?
>
> > > (I'm not an imaging expert nor have the Image Processing
> > > Toolbox...)
>
> > > Thanks in advance,
> > > Yair- Hide quoted text -
>
> > - Show quoted text -
>
> -------------------------------------------------------------------------=
--=AD---------------------
> akshu:
> This is a whole field of research called "content based image
> retrieval."
> You might take a look at these links:http://www.tasi.ac.uk/resources/sear=
chengines.html=A0- A review of
> image search engines and algorithms.http://tinyurl.com/6f8vfs
> Essentially you need to make up a "feature vector" that lists a bunch
> of data that describes your data. =A0Then you need to define some kind
> ofdistancemetricand return all images with feature vectors that are
> within thisdistanceof your example image.
> Regards,
> ImageAnalyst- Hide quoted text -
>
> - Show quoted text -

-------------------------------------------------
Something that may help:
http://www.springerlink.com/content/w5515k817681125h/