Using text detection with c++ on Debian Linux without GUI

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yes, you can use text-detection on a headless box, but you will have to make some adaptions in the sample, since you cannot use imshow(), waitKey(), namedWindow(), etc. e.g. maybe you want to save your images to disk here or here , or don't draw anything at all ? also, you cannot rely on keypresses to navigate the program, you'll have to get creative here. ;)

you will need to compile with opencv_contrib , please see the readme there for build instructions

you will need: opencv_ml opencv_imgproc opencv_core opencv_features2d as dependancies