研究生: |
邱勝文 Sheng-Wen Chiu |
---|---|
論文名稱: |
以例子為基礎的影像風格化 Example-Based Image Stylization |
指導教授: |
張鈞法
Chang, Chun-Fa |
學位類別: |
碩士 Master |
系所名稱: |
資訊工程學系 Department of Computer Science and Information Engineering |
論文出版年: | 2013 |
畢業學年度: | 101 |
語文別: | 中文 |
論文頁數: | 69 |
中文關鍵詞: | 影像強化 、相片風格 、色彩映射 、開放電腦視覺函式庫 |
英文關鍵詞: | Image Enhancement, Picture Style, Color Mapping, Open Computer Vision Library |
論文種類: | 學術論文 |
相關次數: | 點閱:172 下載:8 |
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風格化議題在近年來逐漸受到矚目,原因是社群網站和智慧手機的興起,使得影像分享的活動日趨頻繁,人們在平時常會拿數位相機或手機相機記錄日常生活,在社交活動越來越自由且開放的情況下,使用設備預先設定的模式拍攝影像已難以滿足多數人的需求,於是各種平台都出現簡單且容易使用的風格化工具。
本論文嘗試利用開放電腦視覺函式庫(Open Computer Vision Library),實現風格化訓練系統,利用幾十張的訓練影像對,建立原始影像與強化影像的映射表,此映射表涵蓋整個RGB色彩空間。一旦建立好色彩空間映射表,即可利用它來風格化所有相片,來快速達到我們想要的風格。
然而事實上,無法僅以幾十張就能訓練出涵蓋整個RGB色彩空間的映射表,以致此映射表充滿許多「空洞(Hole)」,多數像素無法順利找到對應的關係,於是我們想出以簡單的機率與統計來實現演算法,最後產生的結果影像經由電腦視覺的標準和人類眼睛的驗證後,效果令人滿意。
[CYKS04] Chang, Youngha, Keiji Uchikawa, and Suguru Saito. Example-based color stylization based on categorical perception. Proceedings of the 1st Symposium on Applied perception in graphics and visualization. ACM, 2004.
[CYSM03] Chang, Youngha, Suguru Saito, and Masayuki Nakajima. A framework for transfer colors based on the basic color categories. Computer Graphics International, 2003. Proceedings. IEEE, 2003.
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[WBYY11] Wang, Baoyuan, Yizhou Yu, and Ying-Qing Xu. Example-based image color and tone style enhancement. To appear in ACM TOG 30 (2011): 4.
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