Abstract:When infrared focal plane arrays(IRFPA) are running for quite a long period,the infrared image was corrected by the algorithm of non-uniformity correction with infrared emitting reference,because of various reasons,it will be degraded gradually,cell-like and blocked flecks will be brought.Just based on this kind of phenomena,a method by way of making statistical analyses of the noise′s gray of infrared image in gray-uniform zones,is put forward in this paper.And it is proved by the experimental results that...