| 有理正切加网算法的改进研究 |
| |
| 引用本文： | 李杰,王海文.有理正切加网算法的改进研究[J].影像技术,2011,23(3):28-30. |
| |
| 作者姓名： | 李杰 王海文 |
| |
| 作者单位： | 1. 衢州职业技术学院,信息工程学院,衢州,324000
2. 浙江科技学院,轻工学院,杭州,310023 |
| |
| 基金项目： | 浙江省衢州市科技计划项目，衙州学院科研项目 |
| |
| 摘 要： | 采用标准灰度图,基于阈值模版法利用Matlab编程方法,验证了Photoshop采用有理正切加网算法。针对数字加网技术中有理正切加网的核心问题（传统加网角度15°的逼近问题）以及其它理论与技术问题,利用Matlab编程方法通过不同阶数的加网实验进行改进研究。主要结论是：18.4°并不是传统加网角度15°的最佳代替角度,三个主要加网角度（0°、18.4°、45°）的最佳加网线数比并不是唯一的,而是有更多的自由选择。
|
| 关 键 词： | 有理正切加网 加网算法 数字加网 Photoshop |
Improvement of Rational Tangent Screening Algorithm |
| |
| LI Jie,WANG Hai-wen.Improvement of Rational Tangent Screening Algorithm[J].Image Technology,2011,23(3):28-30. |
| |
| Authors: | LI Jie WANG Hai-wen |
| |
| Affiliation: | LI Jie1,WANG Hai-wen2(1.Department of Information and Power Engineering,Quzhou College of Technology,Quzhou 324000,2.School of Light Industry,Zhejiang University of Science and Technology,Hangzhou 310023) |
| |
| Abstract: | Based on threshold template method and in Matlab programming method,it defined Photoshop used rational tangent screening algorithm by using a standard grayscale image.Facing the key issue of rational tangent screening（approximation problem of traditional screening angle 15°） and other theory and technology issues in digital screening technology,it researched the improvement of rational tangent screening algorithm in different screening angles experiments by Matlab programming method.The main conclusion included 18.4° was not the best instead for traditional screening angle 15° and the best screening line-ratio of three main screening angles（0°/18.4°/45°） was not the only,but it had more choices. |
| |
| Keywords: | rational tangent screening screening algorithm digital screening Photoshop |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
