Weekly Report 8

This week I prepared the features of the image processing part so as to insert them to the database. In this way, we were not going to process each image in the database when we do the similarity check using the picture received from the server. That was a challenging process, because I was not able to find an example of saving opencv features into the database on internet, documentaations or manuals of openCV. There were two critical structures called cvSeq and cvMat and unlike cvSeq, the cvMat, which corresponds to a matrix, will easily be saved as an xml document. But cvSeq was collecting objects where cvMat was a union of float double and other basic types. Therefore, converting one into another was not easy to figure out. Finally I decided to divide cvSeq's properties into different cvMat objects and then saving those cvMat matrices into different xml files. Also recovered those xmls to cvSeq's by first converting them to different cvMat matrices and recovering old cvSeq objects by merging those various cvMat matrices. I prepared two different programs, one for preparing xml files and other for recovering cvSeq objects. And I integrated the xml to cvSeq part into the image processing module in order to speed up the application.