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云南重彩画艺术风格的数字模拟及合成技术研究

发布时间:2018-06-10 08:27

  本文选题:非真实感绘制 + 云南重彩画 ; 参考:《云南大学》2010年博士论文


【摘要】:非真实感绘制研究是当前计算机图形图像处理领域的研究热点。国内外各研究机构和学者对油画、水彩画、中国山水画、中国书法和剪纸等艺术风格的数字模拟进行了卓有成效的研究,但对云南重彩画的非真实感绘制研究还未见报道。论文首次选取具有浓郁民族特色和地域特色的丁绍光云南重彩画作为研究对象,针对该画派鲜明的中国线条画和色彩艳丽的西方油画特点,从白描图绘制、特有纹理模拟等多方面展开云南重彩画艺术风格数字模拟及合成技术研究,设计并实现了云南重彩画数字合成系统。论文工作对中国特有艺术风格绘画流派的风格化绘制研究是一个非常有意义的补充。研究成果可用于影视制作、图书设计、建筑装修设计、家庭娱乐、广告媒体、数字娱乐等行业。论文的主要工作如下: 1、构建云南重彩画基本图形元素库并设计实现自描图绘制系统 云南重彩画具有鲜明的中国线条画特点,形体夸张修长的人物形象是重彩画中最具表现力的部分。为表现该画派线条画特点及特有的人物造型,提出从重彩画绘画作品中提取基本图形元素,构建图形元素库并用图形元素进行重彩画白描图绘制的解决方案,这是整个云南重彩画艺术风格模拟绘制的基础。图形元素分为头发、面部、躯干、手臂和装饰物五大类。基本图形元素库采取页式和段式两级管理模式对图形元素进行分级管理,可以查找、添加、删除、修改图形元素。基于云南重彩画基本图形元素库,设计实现了自描图绘制系统,从基本图形元素库中选择用于绘图的图形元素,通过系统提供的强大的修改工具和分层绘制方式,对图形元素进行编辑、修改、变形、组合,从而绘制出新的具有云南重彩画风格的白描图人物造型,为后续云南重彩画的着色渲染奠定基础。 2、提出云南重彩画特有纹理生成算法 云南重彩画具有特有的刮痕状纹理和点块状纹理。在比较尝试了多种模拟方法后,提出参数可调的LIC(Line Integral Convolution)方法模拟刮痕状纹理,设计基于笔刷的刮痕状纹理绘制算法,提供点状、直线状和曲线状笔刷式样,通过调节矢量场方向、噪声场浓度改变刮痕状纹理的样式,达到较好的模拟效果。对点块状纹理提出基于多频率LIC的填充绘制算法,通过设置不同频率的噪声场,生成大小粒度不同的点块状纹理。为表现点块状纹理中的混色效果,提出基于RGB和HSV颜色空间的混色模型。 3、提出基于CTWC的交互式局部色彩传递算法 基于CTWC的交互式局部色彩传递算法包括指数形式CTWC算法和Butterworth形式CTWC算法。论文比较了两种算法局部色彩传递的效果和它们各自的参数对色彩传递效果的影响。指数形式CTWC算法具有色彩传递平滑过渡的特点。Butterworth形式CTWC算法可以通过调节滤波器的带宽和阶数,控制局部色彩传递的效果,具有很好的色彩传递指向性。对多区域局部色彩传递,提出迭代和加权平均两种图像融合方式实现多区域局部色彩传递图像融合。论文把色彩传递算法用于云南重彩画风格化绘制。 4、提出按行纹理合成加速算法和Ⅱ_FFT纹理合成加速算法 论文对纹理合成加速方法进行研究,提出了按行合成算法和II_FFT(Intergral Image_Fast Fourier Transform)算法。按行合成算法将经典的Image Quilting算法按块合成纹理改进为按行合成纹理,先按块合成行纹理,再一行一行合成整个纹理,由于消除了冗余误差计算,同时采用并行计算模式,可缩短40%的合成时间。Ⅱ_FFT算法对Image Quilting算法中误差计算方法进行改进,将原来的SSD (Sum of Squared Differences)误差计算改为Ⅱ_FFT误差计算,采用积分图像和FFT快速卷积方法加速误差计算,大大提高了合成速度,而且纹理样本图越大,该算法的合成速度相比Image Quilting算法提高越多。论文把纹理合成用于云南重彩画肌肤、服饰和背景纹理的模拟。 5、设计实现云南重彩画着色和渲染系统 论文设计实现了一个云南重彩画着色和渲染系统,对白描图绘制系统绘制的白描图进行刮痕状纹理、点块状纹理的绘制,并提出基于数学形态学的中空轮廓线增强算法,设计重彩画背景添加算法,结合色彩传递和纹理合成技术,实现云南重彩画白描图的着色和渲染。该系统包括六个功能模块:刮痕状纹理绘制模块、点块状纹理绘制模块、中空轮廓线增强模块、背景添加模块、色彩传递模块和纹理合成模块。通过各模块的协同处理,最终得到逼真的云南重彩画数字合成图。
[Abstract]:The research on non photorealistic rendering is a hot topic in the field of computer graphics and image processing. The research institutions and scholars at home and abroad have done a great deal of research on the digital simulation of oil painting, watercolor, Chinese landscape painting, Chinese calligraphy and paper cutting, but the study of non realistic rendering of Yunnan heavy color painting has not been reported. Ding Shaoguang Yunnan heavy color painting with strong national characteristics and regional characteristics is selected for the first time as the research object. In view of the distinctive features of Chinese line painting and colorful western oil painting, the digital simulation and synthesis technology of Yunnan heavy color painting style are set up from many aspects, such as drawing drawing and special texture simulation. We have realized the digital synthesis system of Yunnan heavy color painting. The work of this paper is a very meaningful supplement to the style painting of Chinese unique art style painting school. The research results can be used in film and television production, book design, architectural decoration design, family entertainment, advertising media, digital entertainment and other industries. The main work of this paper is as follows :
1, build the basic graphics element library of Yunnan heavy color painting and design and implement the self tracing drawing system.
The heavy color painting in Yunnan has the distinctive features of Chinese line painting, and the figure exaggeration and slender figure is the most expressive part of the heavy color painting. In order to express the characteristics of the line painting of the school and the unique character modeling, the basic graphic elements are extracted from the painting works of the heavy color painting, the graphic element library is constructed and the graphic elements are used for the heavy color painting. The solution of drawing drawing is the basis of the simulation of the art style of Yunnan heavy color painting. The graphic elements are divided into five categories: hair, face, trunk, arm and ornament. The basic graphic element library adopts the page and segment type two level management mode to classify the graphic elements, which can be found, added, deleted, and modified. In the basic graphic elements Library of Yunnan heavy color painting, the self tracing drawing system is designed and realized. The graphic elements are selected from the basic graphic element library. Through the powerful modification tools and stratified drawing methods provided by the system, the graphic elements are edited, modified, deformed and combined, thus drawing new style with the style of Yunnan heavy color painting. The white drawing character modeling lays the foundation for the coloring and rendering of Yunnan heavy colored paintings.
2, a special texture generation algorithm for Yunnan heavy color painting is proposed
Yunnan heavy color painting has unique scratch - like texture and point - like texture. After trying a variety of simulation methods, the LIC (Line Integral Convolution) method with adjustable parameters is proposed to simulate scratch - like texture, and the scratch - like texture drawing algorithm based on brush is designed. The field direction, the noise field concentration changes the style of scratch like texture to achieve better simulation effect. The filling rendering algorithm based on multi frequency LIC is proposed for point block texture. By setting different frequencies of noise field, the block texture of different size and size is generated. The color based on RGB and HSV color is proposed. The color mixing model of space.
3, an interactive local color transfer algorithm based on CTWC is proposed.
The interactive local color transfer algorithm based on CTWC includes the index form CTWC algorithm and the Butterworth form CTWC algorithm. The paper compares the effect of the two algorithms for local color transfer and the influence of their respective parameters on the color transfer effect. The index form CTWC algorithm has the characteristic of the.Butterworth form CTWC with the smooth transition of color transfer. The algorithm can control the effect of local color transfer by adjusting the bandwidth and order of the filter, and has a good color transfer directivity. For multi region local color transfer, two kinds of image fusion methods are proposed, which are iterative and weighted average, and the color transfer algorithm is used in Yunnan heavy color painting. Stylized drawing.
4, we propose an accelerated algorithm based on line texture synthesis and an acceleration algorithm for II _FFT texture synthesis.
In this paper, the acceleration method of texture synthesis is studied. A line synthesis algorithm and a II_FFT (Intergral Image_Fast Fourier Transform) algorithm are proposed. According to the line synthesis algorithm, the classical Image Quilting algorithm is improved by the block synthetic texture to synthesize the texture according to the line. First, the line texture is synthesized according to the block, and the whole texture is synthesized by one line and one line is synthesized. Due to the elimination of the texture, the whole texture is synthesized. The calculation of redundancy error and parallel computing mode can shorten the time of 40% synthesis. II _FFT algorithm improves the calculation method of error in Image Quilting algorithm. The original SSD (Sum of Squared Differences) error calculation is changed to II _FFT error calculation, and the integral image and FFT fast convolution method are used to accelerate the calculation of error. It improves the speed of synthesis, and the larger the texture sample map, the more synthetic speed of the algorithm is improved than the Image Quilting algorithm. The paper uses texture synthesis to simulate the skin, clothing and background texture of Yunnan heavy color painting.
5, design and implement the color and rendering system of Yunnan heavy color painting
The paper designs and implements a Yunnan heavy color painting and rendering system. The white drawing drawing system draws the scratch like texture, points the block texture, and puts forward the hollow contour enhancement algorithm based on mathematical morphology, designs the background adding algorithm of the heavy color painting, and combines the color transfer and texture synthesis technology to realize the cloud. The system consists of six functional modules: scratch like texture drawing module, point block texture drawing module, hollow contour line enhancement module, background adding module, color transfer module and texture synthesis module. Through the coordination of each module, the realistic Yunnan heavy color painting digital synthesis is finally obtained. Figure.
【学位授予单位】:云南大学
【学位级别】:博士
【学位授予年份】:2010
【分类号】:TP391.41

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