期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2015
卷号：4
期号：3
页码：789-792
出版社：Shri Pannalal Research Institute of Technolgy
摘要：Halftoning techniques are used by electro-photographic printers for printing the continuous tone image. But drawback of this technique is that, the hardcopies obtained by these methods are corrupted by many screen similar objects. The screen similar objects are such as printing noise and halftone patterns. A new model is proposed which uses adaptive filtering for recovering the high quality halftone image. For reducing the printing noise then attenuating the distortions image redundancy centered denoising algorithm is used. The screen frequency of the scaned image and local gradient features remain the main factor for developing the adaptive filtering. The denoised scanned image is filtered with anisotropic Gaussian kernel to obtain the basic contone image. In gaussian kernel to obtain the basic contone image.
