Re: open source image matching software
On Wed, Feb 06, 2008 at 07:11:12PM -0700, Paul E Condon wrote: Suggestions? gqview can compare images using different levels of similarity. I can't tell anything about the algorithm it uses, but it always worked fine for my needs. Also, it's very fast and can attach metadata to images. ciao Riccardo signature.asc Description: Digital signature
Re: open source image matching software
On 6 February 2008 at 19:11, Paul E Condon wrote: | I have a large number of scanned images of photographs. They are | scanned from prints, and for some images there are several prints. I | would like to find a program that would group similar images (similar | in some sense that approximates human perception of similarity) and | flags the slight differences within a group. I've looked on Google and | found a few programs for criminal investigation but they want $ and | seem only to exist for Windows, which I don't have here. | | I imagine that similarities could be found by image subtraction with | minimization of some measure of image difference. But I also imagine | that there are a host of complications. | | Suggestions? The R statistical environment can also read images. IIRC it builds eg matrices of RGB values from pixeled images. You can then use various statistical measures to analyse those images. Usual caveat: that's not what I use R for, so your mileage may vary. A quick grep among the by now well over 1000 CRAN packages: [EMAIL PROTECTED]:~ links -dump http://cran.r-project.org/src/contrib/PACKAGES.html | grep -i image adimpro Adaptive Smoothing of Digital Images biOps Image processing and analysis biOpsGUI GUI for Basic image operations epsi Edge Preserving Smoothing for Images kza Kolmogorov-Zurbenko Adaptive Filter for Image PET Simulation and Reconstruction of PET Images pixmapBitmap Images (Pixel Maps) rimageImage Processing Module for R [EMAIL PROTECTED]:~ There may well be more. None of these packages are in Debian (even though we have some 60 or so) but are typically just a matter of $ R CMD INSTALL someCRANSourcePkg.tar.gz which you may want to run as root, or give a -l location argument to where you can write. Cheers, Dirk -- Three out of two people have difficulties with fractions. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: open source image matching software
On Thu, 7 Feb 2008, Andreas Hirczy wrote: You might try ImgSeek http://www.imgseek.net/ Or rather $ apt-cache show imgseek ... even if I think findimagedupes is your friend. Kind regards Andreas. -- http://fam-tille.de -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: open source image matching software
Paul E Condon [EMAIL PROTECTED] writes: I have a large number of scanned images of photographs. They are scanned from prints, and for some images there are several prints. I would like to find a program that would group similar images (similar in some sense that approximates human perception of similarity) and flags the slight differences within a group. I've looked on Google and found a few programs for criminal investigation but they want $ and seem only to exist for Windows, which I don't have here. You might try ImgSeek http://www.imgseek.net/ imgSeek is a photo collection manager and viewer with content-based search and many other features. The query is expressed either as a rough sketch painted by the user or as another image you supply (or an image in your collection). The searching algorithm makes use of multiresolution wavelet decomposition of the query and database images. Andreas -- Andreas Hirczy [EMAIL PROTECTED] http://itp.tugraz.at/~ahi/ Graz University of Technology phone: +43/316/873-81 90 Institute of Theoretical and Computational Physics fax: +43/316/873-86 78 Petersgasse 16, A-8010 Graz mobile: +43/664/859 23 57 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
