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研究生： 謝怡芳
Yi-fang Hsieh
論文名稱： OPEN線上影像編輯器
OPEN: An Online Image Editor
指導教授： 林彥君
Yen-chun Lin
口試委員: 林順喜
Shun-shii Lin
古鴻炎
Hung- yan Gu
黃世禎
Shih-chen Huang
學位類別： 碩士
Master
系所名稱： 電資學院 - 資訊工程系
Department of Computer Science and Information Engineering
論文出版年： 2009
畢業學年度： 97
語文別： 中文
論文頁數： 51
中文關鍵詞： 多媒體blog 、影像編輯 、影像擷取
外文關鍵詞： Multimedia blog, Image editing, Image matting
相關次數： 點閱：350  下載：1 
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  •  上一筆

    • 本研究介紹新的互動式線上影像擷取技術，名為NTUST Image Matting (NIM)。跟其它線上版的影像裁剪工具比較，其特點為不必描完前景邊緣，就能在描前景邊緣的過程中，開始處理畫筆涵蓋到的範圍。它可即時呈現擷取的結果，並能擷取出邊緣有細長毛髮形狀的前景，減少使用者在擷取前景時所花費的心力。因為，NIM在web上使用時，處理速度不能太慢。所以，我們選擇了計算簡單的Global Poisson matting [21]來分析出前景。我們保留其處理速度上的優點並改良該演算法中計算前景值、背景值的方法，可在分析出前景時降低雜訊的干擾，讓擷取出的前景在製作合成影像時有較自然的效果。NIM與其它的影像編輯工具整合成線上影像編輯器，再跟blog搭配成一個影像編輯與分享的網站，讓編輯後的影像分享更為便利。

    We introduce NTUST Image Matting (NIM), an interactive technique for online image matting. NIM can obtain good results when dealing with boundaries of fuzzy foreground such as hair and fur. We also developed and implemented an image editor. Users can thus edit images via a Web browser. These editing functions can be integrated into a blog to enrich the multimedia contents.

    摘要 I Abstract II 誌謝 III 目錄 IV 第一章 緒論 1 第二章 相關研究 4 2.1. 影像裁剪簡介 4 2.1.1. 以邊界為基礎的影像裁剪方法 4 2.1.2. 以區域為基礎的影像裁剪方法 5 2.1.3. 結合上兩類優點的影像裁剪方法 6 2.2. 影像擷取簡介 7 2.2.1. Poisson Matting演算法 9 第三章 NIM技術 11 3.1. NIM的使用情形 11 3.2. NIM的處理過程 12 3.3. 算出待判斷區的透明度 15 3.4. NIM的效率評估 20 第四章 OPEN網站 25 4.1. OPEN網站的功能 25 4.2. OPEN編輯器的使用介面 26 4.3. OPEN編輯器的功能列表 27 4.4. OPEN編輯器的編輯工具 32 第五章 線上影像編輯器的比較 37 5.1. OPEN與其它線上影像編輯器的功能比較 37 5.2. 智慧型擷取工具的比較 38 第六章 結論與未來方向 47 參考資料 49

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