動態式區塊色調調整實現臉部真實感強化

Face realism enhancement by adjusting tones of adaptable patches

張育愷(Yu-Kai Chang)

指導教授 ： 林奕成

國立交通大學/資訊學院/多媒體工程研究所/碩士(2014年)

https://doi.org/10.6842/NCTU.2014.00896

摘要

Realizing non-real face images is a challenging problem. Different artists may have different painting styles. When seeing a non-real image, people may enjoy the diverse looks of face features. However, when looking at a real photo, they are sensitive to the face contours and feature details. How to transform sparse stroke of paintings into real-face features makes the problem highly difficult. We propose an example-based method to enhance the realism of painted portraits. We use graph-cut based optimization to synthesize a face from multiple sources and form a piece-up face. Next, a quadratic optimization is applied to close the color differences of adjacent patches. In the end of our system, we seamlessly stitch these patches by a two-level blending process. Our experiments show that the proposed method is able to generate a realistic and novel result.

關鍵字

真實感 ； 色調調整 ； 圖形切割

並列摘要

Realizing non-real face images is a challenging problem. Different artists may have different painting styles. When seeing a non-real image, people may enjoy the diverse looks of face features. However, when looking at a real photo, they are sensitive to the face contours and feature details. How to transform sparse stroke of paintings into real-face features makes the problem highly difficult. We propose an example-based method to enhance the realism of painted portraits. We use graph-cut based optimization to synthesize a face from multiple sources and form a piece-up face. Next, a quadratic optimization is applied to close the color differences of adjacent patches. In the end of our system, we seamlessly stitch these patches by a two-level blending process. Our experiments show that the proposed method is able to generate a realistic and novel result.

並列關鍵字

Example-based method ； graph-cut-based method ； realizing face ； tone adjustment

參考文獻

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