Blur Checker Demo The image with the highest variance of the bunch is the sharpest image (the variance value is not written on the image) Sources https://www.youtube.com/watch?v=C_zFhWdM4ic https://www.tutorialspoint.com/dip/laplacian_operator.htm http://docs.opencv.org/3.0-beta/doc/py_tutorials/py_imgproc/py_gradients/py_gradients.html http://web.pdx.edu/~jduh/courses/Archive/geog481w07/Students/Ludwig_ImageConvolution.pdf
