METHOD FOR SMALL DETAIL RESTORATION IN DIGITAL IMAGES

摘要

An SDR in a digital image is provided to preserve a portion of a texture, a small detail area, and a sharp edge and control a noise level of an original image, and to employ one of a high pass filter and a low pass filter. Detail extraction is performed with respect to an input image to obtain detail information. Smoothness is determined with respect to the input image to obtain smoothness information. Small detail detection is performed to obtain small detail information. The detail information, the smoothness information, and the small detail information are combined with the input image to create an image having subject to the SDR. Noise reduction is performed to create an image in which noise is reduced.