Detecting plagiarism in images

Plagiarism is considered as a serious offence. Due to the tremendious growth of internet resources someone's idea can be used without giving them the proper credit. There are certain plagiarism detection tools available, for example: Plagiarisma.net, Viper etc. A flaw has been identified in this system that when a document is getting scanned for plagiarism each and every line is tested if any image is detected during scan then that image is simply discarded, which is very inappropriate because an image can also be plagiarized. Architecture diagram, flow diagram, UML diagrams, even snapshots of test results can be plagiarized Hence there is need to develop a system which can detect plagiarism in images too.