High Efficiency and Contrast Enhanced Haiftoning with Hybrid Ordered Dithering and Error Diffusion Model
A high efficiency and contrast enhanced halftoning is presented in this paper. The contrast of digital image highly depends on the nature of the ambient lighting and the quality of the lens. The required processing time skyrockets when a high resolution and quality printed work is needed. In this paper, we employ the benefits of high speed ordered dithering and high quality error diffusion to simultaneously solve the problems we described above. As the experimental results demonstrate, this technique is able to enlarge the dynamic range of the histogram and improve execution efficiency to around 15%~47% with the tested images