發(fā)布時(shí)間：2018-05-21 04:20

  本文選題：剪紙 + 非真實(shí)感繪制　； 參考：《電子科技大學(xué)》2012年碩士論文

【摘要】：非真實(shí)感繪制(Non-Photorealistic Rendering，NRP)技術(shù)是最近幾年來(lái)計(jì)算機(jī)圖形學(xué)研究領(lǐng)域正在興起的熱門研究方向。在某些領(lǐng)域，使用非真實(shí)感繪制技術(shù)生產(chǎn)的圖像比使用真實(shí)感繪制技術(shù)生產(chǎn)的圖像更加藝術(shù)化和個(gè)性化。非真實(shí)感繪制技術(shù)在教育、娛樂、藝術(shù)等領(lǐng)域的應(yīng)用十分廣泛。 剪紙是我國(guó)的民間傳統(tǒng)藝術(shù)，中國(guó)剪紙講究刀法、刻法，以剪刻、鏤空為主，所用色彩主觀性強(qiáng)，，色彩鮮艷、濃烈，不拘一格[1]。造型夸張并且富有想象力是中國(guó)剪紙的一大特色，但是由于不同地區(qū)的民俗、文化背景的差異使得剪紙?jiān)谥袊?guó)不同地區(qū)有不同的特色，如陜西的剪紙大氣粗獷，而江南的剪紙就比較精美、精巧，廣東的剪紙則比較的大氣磅礴。剪紙顧名思義就是通過(guò)“剪”的手工動(dòng)作作用于材料“紙”上而形成的藝術(shù)作品，由于這兩樣的限制使想制作出很大的場(chǎng)面和復(fù)雜層次成為了最大的困難。用手工做成的傳統(tǒng)剪紙一般都是用剪刀剪和刀剪兩種傳統(tǒng)方法。這就促成了一個(gè)問(wèn)題的出現(xiàn)，那就是手工制作出來(lái)的剪紙紋樣效率非常的低下，并且制作的費(fèi)用也很高，制作時(shí)間也很長(zhǎng)，而這些都是傳統(tǒng)剪紙的制約因素。正是基于剪紙的以上特點(diǎn)，本文利用計(jì)算機(jī)來(lái)模擬生產(chǎn)剪紙圖樣，讓這一藝術(shù)形式能夠在計(jì)算機(jī)得到重現(xiàn)。 首先分析了手工剪紙的特點(diǎn)，將其紋樣分成了三類：(1)基本結(jié)構(gòu)紋樣。基本結(jié)構(gòu)紋樣用于表示對(duì)象的基本形態(tài)特征。(2)特殊紋樣。這里主要包括兩個(gè)小分類：特征紋樣和特定紋樣。(3)裝飾紋樣，裝飾紋樣反應(yīng)了剪紙表現(xiàn)形式的程式化，將復(fù)雜的事物和變幻不定的自然景象條理化、具體化，體現(xiàn)出剪紙藝術(shù)的民族特點(diǎn)。 利用計(jì)算機(jī)輔助生成剪紙，用戶可以把精力集中在創(chuàng)作上，比較費(fèi)時(shí)的細(xì)部紋樣刻畫則由計(jì)算機(jī)來(lái)做。計(jì)算機(jī)輔助生成剪紙形象更換局部紋樣，只需要選擇紋樣，只需要選擇紋樣，就可以在原有的圖像上進(jìn)行修改和調(diào)換，生成新的剪紙圖案，這比手工重新再剪一個(gè)剪紙圖案要容易得多，得到的圖案也更加豐富多變。計(jì)算機(jī)剪紙可廣泛應(yīng)用于裝飾圖案設(shè)計(jì)、電子賀卡、廣告以及游戲、動(dòng)畫等領(lǐng)域。 由于剪紙的特點(diǎn)，有些頭飾、裝飾等紋樣是公用部分，也就是說(shuō)這些剪紙可以用到不同的形象上邊去，如果在計(jì)算機(jī)中生成，就涉及到了網(wǎng)格的分割，本文也對(duì)網(wǎng)格分割算法的理論上進(jìn)行了改進(jìn)。
[Abstract]:Non-Photorealistic rendering (NRPP) technology is a hot research field in the field of computer graphics in recent years. In some areas, images produced using non-realistic rendering techniques are more artistic and personalized than those produced using realistic rendering techniques. Non-realistic rendering technology is widely used in education, entertainment, art and other fields. Paper-cut is the traditional folk art of our country. Chinese paper-cut pays attention to knife method, engraving method, cutting and hollowed-out. Exaggeration and imagination are a major feature of Chinese paper-cut, but due to the differences in folk customs and cultural backgrounds in different regions of China, paper-cut has different characteristics in different regions of China, such as the rough atmosphere of paper-cut in Shaanxi. The Jiangnan paper-cut on the more exquisite, Guangdong paper-cut is more majestic. As the name implies, paper-cutting is a work of art formed by the manual action of "cutting" on the material "paper". Because of these two limitations, it becomes the biggest difficulty to make a very large scene and complex level. The traditional paper-cut made by hand is usually two traditional methods: scissors and knives. This contributed to the emergence of a problem, that is, hand-made paper-cut patterns efficiency is very low, and the cost of production is also very high, production time is also very long, and these are the constraints of traditional paper-cut. Based on the above characteristics of paper-cut, this paper uses computer to simulate the production of paper-cut patterns, so that this artistic form can be reproduced in the computer. Firstly, the characteristics of manual paper-cut are analyzed, and the patterns are divided into three categories: 1) basic structural pattern. Basic structural patterns are used to represent the basic morphological characteristics of objects. This mainly includes two small categories: characteristic pattern and special pattern. 3) decorative pattern. Decorative pattern reflects the formula of paper-cut expression. It reflects the national characteristics of paper-cut art. With the help of computer aided paper cutting, the user can concentrate on the creation, while the computer can do the detailed pattern depiction. Computer aided generation of paper-cut image to replace the local pattern, only need to select the pattern, can be modified and changed in the original image, to generate a new paper-cut pattern, This is easier than manual re-cutting a paper-cut pattern, the resulting pattern is more varied. Computer paper-cut can be widely used in decorative design, e-card, advertising and games, animation and other fields. Because of the characteristics of paper-cut, some patterns such as headdress and decoration are common parts, that is to say, these paper-cuts can be used in different images. If they are generated in the computer, they involve the division of the mesh. This paper also improves the mesh segmentation algorithm in theory.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TP391.41

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