Hi all, my name's Fabio Dal Forno. I'm a basic scikit user and i have many question too. I've a lot of scanned document like this And i want to extract a particular area (si no, yes or no in english) see image below ​ After that i want to train a neural networ for detect the data compiled by people, y,x coordinate for detect the means of the area (materials damage ecc ecc) and a fixed dimension image for a neural network I started to work with the following step: 1) Homography for detect document orientation after that i transform the document for rectify that 2) Homography for detect si/no area and coordinate once the first step work wery well but the second doesn't detect anything. Am i wrong reasoning ? Thanks a lot and sorry for my beginner english :) ​