有些东西必须时刻放在心上！

目前graphics,image比较热门的idea来源：
1，view-dependent  Apparent Ridges for Line Drawing  View-Dependent Precomputed Light Transport Using Nonlinear Gaussian Function Approximations.
2,   mutli-scale  Multiscale Shape and Detail Enhancement from Multi-light Image Collections   Exaggerated Shading for Depicting Shape and Detail
3,   修改已有的公式模型，Flash Photography Enhancement Via Intrinsic Relighting  Locally Controllable Stylized Shading
Frequency Domain Normal Map Filtering
4,   基于已有的公式提出一种新的数据结构。Real-time Edge-Aware Image Processing with the Bilateral Grid