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Image duplicates detection in Python
The task definition N.B. Here is demo app with source code that cover some moments from article http://comparer-f8a6d5.herokuapp.com When it comes to the development of various aggregators of basically any items (goods, service, real estate etc), the problem of duplicates of the same item is always there. For example, it can be duplicates of an apartment photo, product photo etc. It happens becaus
Image diffing using CSS
Since the last post on CSS was popular here is another simple CSS trick that I found useful in the past. Let’s say we want to find the difference between these two images: You can do this by simply inverting the colors and then stacking them together at 50% opacity. This can be achieved with a single CSS filter: -webkit-filter: invert(100%) opacity(50%); What you should get back is a gray image ex
Diffing Images on the Command Line
So about a year ago I realized that a play on Spaceman Spiff — one of Calvin’s alter-egos — would be a great name for a diffing tool. And that’s how spaceman-diff was born. Then I forgot about it for a year. Classic open source. But like all projects with great names, it eventually came roaring back once I was able to make up an excuse — ANY mundane excuse — for its existence. So today I’ll shout
Perceptual Image Difference Utility
Perceptual Image Diff Introduction PerceptualDiff is an image comparison utility that makes use of a computational model of the human visual system to compare two images. This software is released under the GNU General Public License. Contributors Hector Yee for initial code and perceptual metric Scott Corley for PNG file reading Tobias Sauerwein for Fedora Linux RPM Jeff Breidenbach for Debian Pa
バイナリファイルの差分を作るzdeltaが便利 - kanblr
去年のネタになってしまうんですが、ある程度でかく、かつ都度更新され続けるファイルの転送量を削減したいなーということになって、ちょっとずつ更新されてるなら実は差分は小さいんじゃね?ということで、バイナリのdiffをとって転送先でpatchをあてる、みたいなことが出来ないかなーと調べてました。 バイナリ差分生成系で一番ポピュラーなのはxdeltaのようで実際yumやaptで簡単に入れられるし、プロジェクトとしても更新が続いててドキュメントも揃っててなかなか良さげ。一方で bsdiffとxdeltaを比較してみた という記事で紹介されている bsdiff というのもあって、Google Chromeのアップデートとかでも使われたりしている模様(chromeの差分アップデートでは更に逆アセンブルした結果を差分アップデートしたりとか変態的なことやってるようですが)。 比較してみると、確かに bsdi
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BinDiff now available for free
http://dl.dropbox.com/u/224433/monitoring_casual_3/index.html