【摘要】 在图像有序抖动逆半调过程中选用传统的低通滤波会造成图像中边缘细节的模糊。为使图像处理结果具有较好的边缘特征,可将边缘区域和非边缘区域在逆半调的过程中分别进行处理。该文提出了将几种各具特点的逆半调方法分别应用于有序抖动半调图像的边缘敏感数字滤波算法中,以适用于多种对滤波效果和复杂度有不同要求的情况。更多还原

【Abstract】 It is a problem of practical interest to choose propriety method for filtering.Traditional lowpass filter would make the image edges blurred.So we have to process the edge area and the un-edge area independently.This paper provide us the edge-sensitive method for order dithered inverse halftoning,which include several inverse halftoning ways to be used on condition that the complexity of filtering process has different requirements.更多还原