IMAGE FORMING DEVICE AND IMAGE NOISE PROCESSING METHOD CAPABLE OF DISTINGUISHING IMAGE NOISE INTO 1D AND 2D NOISE

摘要

PURPOSE: An image forming device and image noise processing method are provided to objectively evaluate a picture quality of eh picture image by performing a picture improvement of the picture image by distinguishing an image noise with a 1D and 2D noise. ;CONSTITUTION: An output unit(110) outputs a fixed concentration pattern. An input unit(120) receives an outputted concentration pattern. A signal extraction unit(130) extracts an image noise signal from a two sensing area of a concentration pattern. A controller(140) distinguishes an image noise generating in a concentration pattern based on the image noise signal with 1D or 2D noise. The controller distinguishes the image noise by comparing the correlation coefficient between the image noise signals.;COPYRIGHT KIPO 2011