【摘要】：隨著計(jì)算機(jī)硬件技術(shù)和軟件技術(shù)的發(fā)展,計(jì)算機(jī)圖形學(xué)的發(fā)展已經(jīng)取得了巨大的成功。非真實(shí)感繪制技術(shù)已經(jīng)受到了人們?cè)絹?lái)越多的關(guān)注,成為計(jì)算機(jī)圖形學(xué)研究的熱點(diǎn)。非真實(shí)感繪制技術(shù)不追求圖像的真實(shí)性,主要是模擬藝術(shù)家的手繪的藝術(shù)風(fēng)格。它是計(jì)算機(jī)圖形學(xué)的一個(gè)新領(lǐng)域,研究者也不斷對(duì)各種藝術(shù)風(fēng)格進(jìn)行嘗試,應(yīng)用的領(lǐng)域也越來(lái)越廣泛,非真實(shí)感繪制技術(shù)已經(jīng)在工業(yè)設(shè)計(jì)、醫(yī)學(xué)領(lǐng)域、影視廣告等領(lǐng)域有廣泛的應(yīng)用。由于這些領(lǐng)域應(yīng)用的推動(dòng),也給非真實(shí)感的研究和發(fā)展提供了新的發(fā)展機(jī)遇與挑戰(zhàn)。本文主要在以下幾個(gè)方面進(jìn)行研究: 首先,論文簡(jiǎn)單的介紹了計(jì)算機(jī)圖形學(xué)的定義和發(fā)展,回顧了真實(shí)感繪制技術(shù)和非真實(shí)感繪制技術(shù),對(duì)真實(shí)感繪制技術(shù)的發(fā)展、特點(diǎn)、缺陷以及非真實(shí)感繪制技術(shù)的定義、發(fā)展、分類(lèi)和應(yīng)用進(jìn)行總結(jié),并比較了它們的異同點(diǎn)。 其次,論文介紹了粒子系統(tǒng)的原理以及OpenGL的一些特點(diǎn)與功能,根據(jù)水彩畫(huà)的特征建立了一個(gè)粒子系統(tǒng)模型,應(yīng)用OpenGL的紋理映射技術(shù)設(shè)計(jì)一個(gè)水彩畫(huà)模擬系統(tǒng)。用戶(hù)可以根據(jù)實(shí)際需要控制粒子的屬性,控制筆刷的方向和速度,系統(tǒng)的實(shí)時(shí)性和交互性更強(qiáng)。 最后,論文提出了一種基于LIC算法生成鉛筆畫(huà)的方法,根據(jù)結(jié)構(gòu)矢量場(chǎng)和圖像分割后的局部特征,自適應(yīng)的產(chǎn)生筆劃的長(zhǎng)度和紋理方向,再利用線(xiàn)性卷積積分方法處理圖像。將繪制結(jié)果與通過(guò)霓虹處理得到的輪廓效果相結(jié)合,這樣可以模擬鉛筆畫(huà)中不同區(qū)域的細(xì)節(jié)豐富程度,使繪制出的鉛筆畫(huà)更富于變化。
[Abstract]:With the development of computer hardware and software technology, the development of computer graphics has achieved great success. Non-realistic rendering technology has been paid more and more attention, and has become a hot topic in computer graphics research. Non-realistic rendering technology does not seek the authenticity of the image, but mainly simulates the artist's hand-painted artistic style. It is a new field of computer graphics, and researchers are constantly trying on various artistic styles. The fields of application are more and more extensive. Non-realistic rendering technology has been applied in the field of industrial design and medicine. Film and television advertising and other fields have a wide range of applications. Due to the application of these fields, it also provides new opportunities and challenges for the research and development of non-reality. Firstly, this paper introduces the definition and development of computer graphics, reviews the technology of realistic rendering and non-realistic rendering, and develops the technology of realistic rendering. The definition, development, classification and application of features, defects and non-realistic rendering techniques are summarized, and their similarities and differences are compared. Secondly, the paper introduces the principle of particle system and some features and functions of OpenGL. According to the characteristics of watercolor, a particle system model is established and a watercolor simulation system is designed by using OpenGL texture mapping technology. Users can control the properties of particles and the direction and speed of brush according to the actual needs. The real-time and interactivity of the system is stronger. Finally, this paper presents a method to generate pencil strokes based on LIC algorithm. According to the structure vector field and the local feature of image segmentation, the length and texture direction of stroke are generated adaptively, and then the image is processed by linear convolution integral method. By combining the result of drawing with the contour effect obtained by neon processing, the rich degree of detail in different areas of the pencil drawing can be simulated, and the resulting pencil drawing will be more varied.
【學(xué)位授予單位】：遼寧師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類(lèi)號(hào)】：TP391.41

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