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| 研究生： |
鄭廸嶸 Di-Rong Cheng |
|---|---|
| 論文名稱： |
數位影像色彩校正可行性評估 Feasibility Evaluation of Color Correction for Digital Image |
| 指導教授： |
廖國偉
Kuo-Wei Laio |
| 口試委員: |
楊亦東
none 楊元森 none 黃仲偉 none |
| 學位類別： |
碩士 Master |
| 系所名稱： |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
| 論文出版年： | 2016 |
| 畢業學年度： | 104 |
| 語文別： | 中文 |
| 論文頁數： | 155 |
| 中文關鍵詞： | 數位影像 、色彩校正 、色彩還原 、跨媒體色彩複製 、光譜反射率 、矩陣法 、最小平方支持向量機 |
| 外文關鍵詞： | Cross Media Colour Reproduction, Spectral reflectance, Matrix Method, LS-SVM |
| 相關次數： | 點閱：303 下載：2 |
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跨媒體顏色的複製，經常使目標顏色失真，無法呈現最真實的顏色。如油漆廠的業務在外頭跟客戶討論所想要的顏色，但是口頭描述有所限制，透過照相設備溝通目標顏色有其必要性。在拍照的過程中，會因為種種的因素導致客戶的目標顏色產生色偏，故本研究希望透過色彩還原方法，來達到顏色的跨媒體複製。
透過色彩還原在營建工程應用上也有許多幫助，例如在判識橋梁繡蝕、建物塗裝工程評估等等…。
本研究利用LS-SVM對拍攝到的包含ColorChecker的照片做顏色首次還原，再利用還原後照片上的XYZ值結合矩陣法、內插法和光譜反射率還原法的概念設計一個全新的色彩還原方法，此法簡稱PR法。
根據研究結果本研究所提之PR法不論是色卡內還原效果或者色卡外(被測物)還原效果都比矩陣法還原效果還來的優異。
It is often to find the phenomenon of color distortion in reproducing a color across media. However, the digital reproduction of a color is necessary at certain circumstances. For example, during the communication between factory saleman and their customers, a precise ditigal color clone certainly lessens the communication skill and reduce the mistakes frequently found in an oral expression.
The color correction is helpful in civil engineering applications, such as the identification of bridge corroded, structural painting evaluation and so on.
There are many reasons to cause the color distortion. This study first reviews all the influcening factors and then proposes an algorithm for color correction in which several techniques are ustilized such as the method of matrix, interpolation, spectral reflectance correction and Least Square-Support Machine (LS-SVM). Although the current reslts are not very promising, based on the trend found here, it is reasonable to expect a better correction method, based on the current model, can be easily established.
According to this study, in which three methods of color correction are compared, the PR possesses the best color correctio for both ColorChecker and analyte.
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[32] ColorCheck 140 SG LAB值, http://www.xrite.com/documents/apps/public/digital_colorchecker_sg_l_a_b.txt
