Is there a way to detect if an image is blurry?

Question

I was wondering if there is a way to determine if an image is blurry or not by analyzing the image data.

Answer 1

Matlab code of two methods that have been published in highly regarded journals (IEEE Transactions on Image Processing) are available here: https://ivulab.asu.edu/software

check the CPBDM and JNBM algorithms. If you check the code it's not very hard to be ported and incidentally it is based on the Marzialiano's method as basic feature.