Description

Detecting multiple bright spots in an image with Python and OpenCV

To start detecting the brightest regions in an image, we first need to load our image from disk followed by converting it to grayscale and smoothing (i.e., blurring) it to reduce high frequency noise.To reveal the brightest regions in the blurred image we need to apply thresholding.There is a bit of noise in this image (i.e., small blobs), so let’s clean it up by performing a series of erosions and dilations.An excellent way to do this is to perform a Connected Componenet analysis.