We present conditional expression (CE) for finding blurs convolved in given images. The CE is given in terms of the zero-values of the blurs evaluated at multi-point. The CE can detect multiple blur all at once. We illustrate the multiple blur-detection by using a test image.
Cite
@article{arxiv.cs/0609164,
title = {Conditional Expressions for Blind Deconvolution: Multi-point form},
author = {S. Aogaki and I. Moritani and T. Sugai and F. Takeutchi and F. M. Toyama},
journal= {arXiv preprint arXiv:cs/0609164},
year = {2007}
}