Device and method for filtering image noise using statistical characteristics and pixel similarity information

The pattern is information eliminating image and method, and filtering method during the voltage reducing staff the pre-processing for decoding a noise of the sensor is obtained, so that the number of raising compression ratio, filters during post-processing of coder decoder the coder decoder a noise according creates, so that the number of obtaining the high image. The method comprises the steps: (a) is separately input ends image signals operating area, wherein the separated by the image signal of the predetermined pixel; thethe (b) computational input image signal averaging brightness, and a out noise is separately of the input image signal; (c) based on cut by the separation area and switching and noise separately image signal low-frequency and high; (d) is a given comprising a low-frequency image signal by averaging value, based on statistic eliminating noise; (e) is a high-frequency image signal analysis method, image element-based similarity eliminating noise.