python 3.x - How to detect graph/Charts in a pdf in opencv?

Question

I am new in opencv and doing a task in which I have to detect the charts/graph(Line,bar,histogram,etc) from a pdf. So for this I am using hough Line transform to get the perpendicular line and then I will check whether any range of points present on the X-Y axis or not. If yes then I can say it is a chart or else it is a normal table. Is my approach correct? If yes then how can I detect the range of points on the line? If there is any better solution please tell me with an example.

question from:https://stackoverflow.com/questions/65839647/how-to-detect-graph-charts-in-a-pdf-in-opencv

Answer 1

Waitting for answers