METHOD FOR ENHANCING DIGITAL IMAGE QUALITY

摘要

PURPOSE: A method for enhancing the digital image quality is provided to lighten distortion of screened halftone pattern area and enhance the quality. CONSTITUTION: RGB color data of an observed pixel are converted into color data having brightness components and chroma components(10). It is judged whether suppressed masking process conditions are satisfied(20). If so, a suppressed masking process emphasizing pixel data is proceeded by smoothing the brightness data with a predetermined mask(30). The quality improved brightness data and the color saturation data are inversely converted to update the RGB data(40). It is judged whether the observed pixel is a final pixel(50).