Hi friends,
i want to classify the scanned document images and so many methods are there. But it depends high with texts in the document. Please suggest any best algorithm that can classify the document without using the texts.
I have added few sample images. Example i am having 500 documents with different layout . If i feed the image into the engine, it should tell this document is this type(i.e Form 16a, w2 tax).
You want to classify the doc into how many classes? and based on which information, you want to classify them into different classes. Clearly provide information
Then you probably just want to recognize which is the layout of this document, given a set of possible layouts.
For example, you know that one of your possible layouts is a "Form16", in which you know that there is a header with the text "Form16" at given position.
You could just verify id in your current doc there is the text "Form16" in the correct position. If so, you already have the class of your document.
You just need to select which features are distinctive for each layout, and test them on your current doc.
Hope it helps.
Thanks Michele. But if i have a low resolution image, it is not possible to identify the classes. Please suggest me features for classification.
One possible approach could be to detect the straight lines first using Hough line detector. Hough line detector can identify lines with their position and orientation (slope). As different layouts will have different numbers of horizontal and vertical lines placed at different positions, this (position & orientation of lines) could be a pretty good feature.
Hope it helps.
hi,
What are the features are used to classify your document is the most important thing for classification purpose. Please refer the following papers , which may help you
http://www.ias.ac.in/sadhana/Pdf2002Feb/pe989.pdf
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6628801&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6628801
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6466986&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6466986
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6703735&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6703735
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6920712&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6920712
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