提花织物花型预处理系统
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摘要
提花织物花型预处理系统是提花织物CAD系统的重要组成部分。提花织物CAD系统利用计算机帮助设计人员进行提花织物设计,改善了传统的纹织工艺,大大提高了纹织工业的自动化水平。纹织CAD系统一般由扫描输入与分色模块、图像编辑模块、工艺处理模块和输出模块四个模块组成。本课题旨在增强浙大经纬纹织CAD系统提花织物花型预处理系统功能,对扫描输入与分色模块和图像编辑模块进行改进。
本课题根据客户的需求,设计了一个基于多图层显示处理和矢量编辑绘图的提花织物花型预处理系统。主要从五个方面来增强提花织物预处理系统的功能:
1) 在扫描输入部分,利用Delphi重新开发了符合扫描仪的TWAIN规范的扫描图像采集程序,增加了扫描预览功能,使得用户可以利用较小的分辨率对图案进行快速的扫描预览。
2) 在颜色量化部分,对“变球法”颜色量化方法进行了改进,引入了人机交互,有效地改善颜色量化的效果。
3) 在提花织物花型预处理系统中引入了矢量绘图系统。利用面向对象的组合模式设计了一个矢量绘图系统。
4) 在提花织物花型预处理系统中引入了多图层处理功能。设计了一个多层显示控件,用于显示和管理图层,并同时支持位图图层和矢量图层。
5) 在系统中引入了纹织图像矢量化的功能,用于将纹织位图图像转化为矢量图像。给出了一种纹织图像矢量化的方法,根据纹织图像的特点,利用链码法对图像色块的轮廓进行跟踪,然后利用最小二乘法对轮廓进行Bezier曲线拟合。
Jacquard Pattern Pre-processing System is an important part of Jacquard CAD System. Jacquard CAD system can help designer to design jacquard weaves. It improves the traditional jacquard technology and promotes the automatic level of jacquard industry. Generally speaking, Jacquard CAD system is made of four parts: Image scan input & image color quantization part, Image processing part, Jacquard technical part and Jacquard output part. The main purpose of this thesis is to enhance the Jacquard Pattern Pre-processing System of original JCAD system produced by Jinwei Automation Co., Zhejiang University, including the Image scan input & image color quantization part and Image processing part.Due to the customers' requirement, this paper put forward a Jacquard Pattern Pre-processing System based on multi-layer processing and vector editing. This paper enhances the Jacquard Pattern Pre-processing System from aspects as following:1) In Image-Input part, this paper provides a scanner Image-Acquire program in accordance with TWAIN specification developed using Delphi. And it is enhanced with scan preview function by which user can quickly scan the whole image in low resolving capability and can locate the area that is really wanted.2) In Color-Quantization part, this paper improves the original "Variable Ball'method, introduce an interactive method to improve the color quantization effect.3) Introduce vector editing system to Jacquard Pattern Pre-processing System, design a vector editing system using Object-Oriented Composite Pattern.4) Introduce multi-layer processing function to Jacquard Pattern Pre-processing System, provide a multi-layer VCL component to paint and manage layers, supporting bitmap layer and vector layer.5) Introduce R2V (Raster to Vector) function to Jacquard Pattern Pre-processing System, in order to change raster Jacquard image to vector image. Describes a method
of changing Raster Jacquard images to Vector image based on the characters of jacquard imageThis method traces the contour of color blocks and then fit he contours by the Least-Square-Method using Bezier curves.
本课题根据客户的需求,设计了一个基于多图层显示处理和矢量编辑绘图的提花织物花型预处理系统。主要从五个方面来增强提花织物预处理系统的功能:
1) 在扫描输入部分,利用Delphi重新开发了符合扫描仪的TWAIN规范的扫描图像采集程序,增加了扫描预览功能,使得用户可以利用较小的分辨率对图案进行快速的扫描预览。
2) 在颜色量化部分,对“变球法”颜色量化方法进行了改进,引入了人机交互,有效地改善颜色量化的效果。
3) 在提花织物花型预处理系统中引入了矢量绘图系统。利用面向对象的组合模式设计了一个矢量绘图系统。
4) 在提花织物花型预处理系统中引入了多图层处理功能。设计了一个多层显示控件,用于显示和管理图层,并同时支持位图图层和矢量图层。
5) 在系统中引入了纹织图像矢量化的功能,用于将纹织位图图像转化为矢量图像。给出了一种纹织图像矢量化的方法,根据纹织图像的特点,利用链码法对图像色块的轮廓进行跟踪,然后利用最小二乘法对轮廓进行Bezier曲线拟合。
Jacquard Pattern Pre-processing System is an important part of Jacquard CAD System. Jacquard CAD system can help designer to design jacquard weaves. It improves the traditional jacquard technology and promotes the automatic level of jacquard industry. Generally speaking, Jacquard CAD system is made of four parts: Image scan input & image color quantization part, Image processing part, Jacquard technical part and Jacquard output part. The main purpose of this thesis is to enhance the Jacquard Pattern Pre-processing System of original JCAD system produced by Jinwei Automation Co., Zhejiang University, including the Image scan input & image color quantization part and Image processing part.Due to the customers' requirement, this paper put forward a Jacquard Pattern Pre-processing System based on multi-layer processing and vector editing. This paper enhances the Jacquard Pattern Pre-processing System from aspects as following:1) In Image-Input part, this paper provides a scanner Image-Acquire program in accordance with TWAIN specification developed using Delphi. And it is enhanced with scan preview function by which user can quickly scan the whole image in low resolving capability and can locate the area that is really wanted.2) In Color-Quantization part, this paper improves the original "Variable Ball'method, introduce an interactive method to improve the color quantization effect.3) Introduce vector editing system to Jacquard Pattern Pre-processing System, design a vector editing system using Object-Oriented Composite Pattern.4) Introduce multi-layer processing function to Jacquard Pattern Pre-processing System, provide a multi-layer VCL component to paint and manage layers, supporting bitmap layer and vector layer.5) Introduce R2V (Raster to Vector) function to Jacquard Pattern Pre-processing System, in order to change raster Jacquard image to vector image. Describes a method
of changing Raster Jacquard images to Vector image based on the characters of jacquard imageThis method traces the contour of color blocks and then fit he contours by the Least-Square-Method using Bezier curves.
引文
[1] 陈纯,陈进勇.纹织CAD应用手册[M].北京:中国纺织出版社.2001
[2] 周赳.纹织CAD系统的应用功能和发展方向[J].织物加工.2003,No.2,:77-80
[3] 尹东,王巍.TWAIN原理及其应用开发[J].信息技术.2001,9(9):15-18
[4] 倪志权.浅谈TWAIN标准[J].微型计算机.2000,7(7):79—80
[5] The TWAIN Working Group. TWAIN Specification (Version1.9)[J/OL]. http://www.twain.org. 2000, 1
[6] 谢志鹏,陈锻生.用VC设计数码相机、扫描仪的图像采集程序[J].微机发展.2002,12(3):49—52
[7] Steve Teixeira著.任旭钧等译.Delphi5开发人员指南[M].北京:机械工业出版社,2000
[8] 彭群生等.计算机真实感图形的算法基础[M].北京:科学出版社.1999
[9] 李学军,周嘉玉.真实图形的颜色量化[J].计算机辅助设计与图形学学报.1996,8(3):193-196
[10] 龚斌等.一种新型图像颜色量化算法及其实现[J].山东大学学报(理学版).2003,38(1):58-60
[11] 赵燕伟,王万良.基于聚类分析的色彩量化新算法及其应用[J].计算机辅助设计与图形学学报.2000,12(5):340-343
[12] 吕建平,黄英.几种图像色彩量化方法的分析比较[J].计算机应用.2002,22(5):86-88
[13] 鲁力,颜钢锋.基于色彩量化的自动配色新算法及其应用[J].计算机工程与应用.2003,39(20):110-112
[14] Heckbert P. Color image quantization for frame buffer display[J]. Computer Graphics. 1982, 16 (6): 197-307
[15] Wang S,Wong S, Prusinkiewwicz P. An algorithm for multidimensional and data clustering[J]. ACM Transactions on Mathematics Software. 1988
[16] Xiang Zhigang, Joy G. Color image quantization by agglomerative clustering[J]. IEEE Computer Graphics and Applications. 1994, 14 (1): 44-48
[17] 王秀娟等.彩色图像颜色量化的优化[J].大连理工大学学报.1998,38(1):50-53.
[18] 李佳等.水声信道中彩色图像压缩编码及其DSP实现.厦门大学学报.2002,41(1):35-38
[19] Mehmet D.AKIN, Nasia ERDODAN. Using Object Oriented Design Patterns to Develop an Interactive Command System for a CAD Software with Undo and Redo Support. Proc.15th International Symp. on Computer and Information Sciences (ISCIS XV), Ystanbul, Turkey, 2000, pp. 410-417
[20] Rrich Gamma等著,李英俊等译.设计模式:可复用面向对象软件的基础[M].北京:机械工业出版社,2000
[21] 阎宏.Java与模式[M].北京:电子工业出版社,2003
[22] 孙家广、杨长贵.计算机图形学[M].北京:清华大学出版社.1994
[23] 贺蜀山.几种软件的图层处理功能[J].重庆石油高等专科学校学报.2003,5(1):57-58
[24] 何斌、马天予等.数字图像处理[M].北京:人民邮电出版社.2001.4
[25] 吕凤军.数字图像处理编程入门[M].北京:清华大学出版社.1999.9
[26] 陆宗骐.图像处理领域轮廓跟踪及应用[J].开发与应用.1994,(10):49-52
[27] 王欢.数字图像的一种轮廓跟踪算法[J].北京师范大学学报,1990.3:40-43
[28] 陈士金等.基于链码的轮廓跟踪技术在二值图像中的应用[J].华中理工大学学报.1998,28(12):26-28
[29] 付丽琴,陈树越.一种改进的边界轮廓矢量化算法[J].测试技术学报.2002,16(4).421-424
[30] Xiaoyi Jiang, Horst Bunke. Edge Detection in Range Images Based on Scan Line Approximation[J]. Computer Vision and Image Understanding. 1999, 73(2)
[31] 沈立,张晨曦.黑白图像的矢量化[J].计算机辅助设计与图形图学学报.2000,12(3):170-173
[32] 郑厚生.关于Bezier曲线性质及曲线拟合问题[J].华侨大学学报自然科学 版.1992,13(4):519-525
[33] 陈月林,王平江.基于曲率的轮廓精确分段技术[J].华中理工大学学报.1995,23(6):20-23
[34] 吴维勇等.平面轮廓识别与分段技术的研究与快速实现[J].工程图学学报.2003 No.4:14-19
[35] 余学军,彭立中.二值图像曲线轮廓提取的新算法[J].中国图象图形学报.2002,7(3):272-275
[36] 汤锋等.基于矢量化方法的套色图光滑变换算法[J].中国图象图形学报.2003,8(A),spec:166-169
[37] 扶卿华,倪绍祥等.栅格数据矢量化及其存在问题的解决[J].现代测绘.2004,27(3):8-11
[38] Philip J.Schneider Solving the nearesting-point-on-curve problem[J/OL]. Graphics Gems. 1990:607-611
[39] Philip J.Schneider. An Interactive Curve Design System Based on the Automactic Fitting of Hand-Sketched Curves. Thesis of University of Washington, 1988
[2] 周赳.纹织CAD系统的应用功能和发展方向[J].织物加工.2003,No.2,:77-80
[3] 尹东,王巍.TWAIN原理及其应用开发[J].信息技术.2001,9(9):15-18
[4] 倪志权.浅谈TWAIN标准[J].微型计算机.2000,7(7):79—80
[5] The TWAIN Working Group. TWAIN Specification (Version1.9)[J/OL]. http://www.twain.org. 2000, 1
[6] 谢志鹏,陈锻生.用VC设计数码相机、扫描仪的图像采集程序[J].微机发展.2002,12(3):49—52
[7] Steve Teixeira著.任旭钧等译.Delphi5开发人员指南[M].北京:机械工业出版社,2000
[8] 彭群生等.计算机真实感图形的算法基础[M].北京:科学出版社.1999
[9] 李学军,周嘉玉.真实图形的颜色量化[J].计算机辅助设计与图形学学报.1996,8(3):193-196
[10] 龚斌等.一种新型图像颜色量化算法及其实现[J].山东大学学报(理学版).2003,38(1):58-60
[11] 赵燕伟,王万良.基于聚类分析的色彩量化新算法及其应用[J].计算机辅助设计与图形学学报.2000,12(5):340-343
[12] 吕建平,黄英.几种图像色彩量化方法的分析比较[J].计算机应用.2002,22(5):86-88
[13] 鲁力,颜钢锋.基于色彩量化的自动配色新算法及其应用[J].计算机工程与应用.2003,39(20):110-112
[14] Heckbert P. Color image quantization for frame buffer display[J]. Computer Graphics. 1982, 16 (6): 197-307
[15] Wang S,Wong S, Prusinkiewwicz P. An algorithm for multidimensional and data clustering[J]. ACM Transactions on Mathematics Software. 1988
[16] Xiang Zhigang, Joy G. Color image quantization by agglomerative clustering[J]. IEEE Computer Graphics and Applications. 1994, 14 (1): 44-48
[17] 王秀娟等.彩色图像颜色量化的优化[J].大连理工大学学报.1998,38(1):50-53.
[18] 李佳等.水声信道中彩色图像压缩编码及其DSP实现.厦门大学学报.2002,41(1):35-38
[19] Mehmet D.AKIN, Nasia ERDODAN. Using Object Oriented Design Patterns to Develop an Interactive Command System for a CAD Software with Undo and Redo Support. Proc.15th International Symp. on Computer and Information Sciences (ISCIS XV), Ystanbul, Turkey, 2000, pp. 410-417
[20] Rrich Gamma等著,李英俊等译.设计模式:可复用面向对象软件的基础[M].北京:机械工业出版社,2000
[21] 阎宏.Java与模式[M].北京:电子工业出版社,2003
[22] 孙家广、杨长贵.计算机图形学[M].北京:清华大学出版社.1994
[23] 贺蜀山.几种软件的图层处理功能[J].重庆石油高等专科学校学报.2003,5(1):57-58
[24] 何斌、马天予等.数字图像处理[M].北京:人民邮电出版社.2001.4
[25] 吕凤军.数字图像处理编程入门[M].北京:清华大学出版社.1999.9
[26] 陆宗骐.图像处理领域轮廓跟踪及应用[J].开发与应用.1994,(10):49-52
[27] 王欢.数字图像的一种轮廓跟踪算法[J].北京师范大学学报,1990.3:40-43
[28] 陈士金等.基于链码的轮廓跟踪技术在二值图像中的应用[J].华中理工大学学报.1998,28(12):26-28
[29] 付丽琴,陈树越.一种改进的边界轮廓矢量化算法[J].测试技术学报.2002,16(4).421-424
[30] Xiaoyi Jiang, Horst Bunke. Edge Detection in Range Images Based on Scan Line Approximation[J]. Computer Vision and Image Understanding. 1999, 73(2)
[31] 沈立,张晨曦.黑白图像的矢量化[J].计算机辅助设计与图形图学学报.2000,12(3):170-173
[32] 郑厚生.关于Bezier曲线性质及曲线拟合问题[J].华侨大学学报自然科学 版.1992,13(4):519-525
[33] 陈月林,王平江.基于曲率的轮廓精确分段技术[J].华中理工大学学报.1995,23(6):20-23
[34] 吴维勇等.平面轮廓识别与分段技术的研究与快速实现[J].工程图学学报.2003 No.4:14-19
[35] 余学军,彭立中.二值图像曲线轮廓提取的新算法[J].中国图象图形学报.2002,7(3):272-275
[36] 汤锋等.基于矢量化方法的套色图光滑变换算法[J].中国图象图形学报.2003,8(A),spec:166-169
[37] 扶卿华,倪绍祥等.栅格数据矢量化及其存在问题的解决[J].现代测绘.2004,27(3):8-11
[38] Philip J.Schneider Solving the nearesting-point-on-curve problem[J/OL]. Graphics Gems. 1990:607-611
[39] Philip J.Schneider. An Interactive Curve Design System Based on the Automactic Fitting of Hand-Sketched Curves. Thesis of University of Washington, 1988