Patent ID: 9355327
Filing Date: 2016-05-31
CPC Classification: G06K,G06T

Claim Text:
1. An image signal processing apparatus comprising: an image signal input unit supplied with an image signal as an input; at least one processor executing stored instructions to: calculate a statistical quantity of pixel values in a local area including a noted pixel from an image signal input from the image signal input unit, as local information; determine a noise correction intensity; conduct noise correction processing on an image signal input from the image signal input unit on the basis of the noise correction intensity by using the local information; determine a signal level correction intensity of the image signal which has been noise-correction-processed; and estimate a characteristic of a signal level correction on the basis of the signal level correction intensity; and conduct signal level correction processing on the image signal which has been noise-correction-processed on the basis of the signal level correction intensity; wherein controlling the noise correction intensity is determined depending upon the local information in the noise correction processing, in conjunction with the estimated characteristics of the signal level correction.