| 1. | Digital halftoning method based on characteristic information of image
基于图像特征信息的数字半色调方法 |
| 2. | Owing to processing result relying on choice of image scanning path , a new halftoning method of context - based space filling curves is proposed
论文研究的新方法有： 1由于图像处理过程中扫描路径的选取不同直接影响半色调图像的质量。 |
| 3. | The thesis studies a series of digital halftoning technique on discussing object of gray image , based on analyzing domestic and foreign digital halftoning techniques
本论文是在对国内外已有的数字半色调技术分析基础上，以灰度图像为研究对象，对该技术进行了研究。 |
| 4. | The error diffusion algorithm , first introduced by fioyd and steinberg , requires neighborhood operations . lt is currentiy the most popuiar neighborhood halftoning process . the dithering algorithm , which has been used in era2000 system , is able to prov
误差分散算法是山fioyd和steinberg首先提出的，它采用的是邻域操作，是目前最流行的邻域半色调处理算法。 |
| 5. | The technology has widely applied to typography , textile , printing technology , compression memory of digital image , transmission of digital image and medicine etc . the research of digital halftoning technique is important in realistic significance and application value
该技术广泛应用于印刷、纺织、打印技术、数字图像的压缩存储、图像的传输、医学等各个领域，所以研究数字半色调技术具有重要的现实意义和应用价值。 |
| 6. | Digital halftoning technique , which is on basis of human visual attribution and color characteristic of image , is the tone rendition technology of transforming an image with greater amplitude resolution to one with lesser amplitude on two levels or on finite levels by mathematics and computer
数字半色调技术是基于人眼的视觉特性和图像的成色特性，利用数学、计算机等工具，在二值设备或有限灰度级设备上实现图像再现的一门技术。 |
| 7. | Main contents are as follows : analyzing structure of image rendering system - , discussing on three factors affecting digital halftoning technique which are threshold choice , choice of image scanning path and error filter coefficient ; probing into merits and deficiencies of existing technique . in the thesis , many new methods or techniques are : 1
其主要内容包括：分析了图像再现系统的构成；探讨了影响数字半色调技术的三大因素(阈值的选取，图像扫描像素路径的选取以及误差滤波器系数的选取) ；讨论了现有数字半色调方法实现过程的优点和不足。 |
| 8. | These experiments had improved that two new methods are superior to existing digital halftoning methods in aspect of subjective sense and objective evaluation , that different parameters are decided according to user requirement and different requisite information of original image are rendered in the new digital halftoning method based on characteristic information of image
实验表明，论文提出的新方法在主观感受和客观评价方面均优于现有的半色调方法，而且，基于图像特征信息的数字半色调方法能够根据用户需要进行参数的不同设置，进而再现图像的不同需求信息。 |
| 9. | In existing extremely main methods , some useful characteristic information and detail information is deficient rendering , because whole rendering and edge rendering of image are realized by local rendering . therefore , another new digital halftoning method based on characteristic information of image has been developed
由于现有的绝大部分方法都是通过图像的局部再现实现图像的整体再现及图像边缘的再现，使得原图像的许多有用特征信息和细节信息没有得到充分地再现，为此，提出了一种基于图像特征信息的数字半色调方法。 |
