Face retouching aims to remove facial blemishes, such as pigmentation and acne, and still retain fine-grain texture details. Nevertheless, existing methods just remove the blemishes but focus little on realism of the intermediate process, limiting their use more to beautifying facial images on social media rather than being effective tools for simulating changes in facial pigmentation and ance. Motivated by this limitation, we propose our Controllable and Gradual Face Retouching (CGFR). Our CGFR is based on physical modelling, adopting Sum-of-Gaussians to approximate skin subsurface scattering in a decomposed melanin and haemoglobin color space. Our CGFR offers a user-friendly control over the facial blemishes, achieving realistic and gradual blemishes retouching. Experimental results based on actual clinical data shows that CGFR can realistically simulate the blemishes' gradual recovering process.

基于物理建模，我们提出了一种可控和渐进的面部修饰方法，采用高斯函数的叠加来近似皮肤表面散射在分解的黑色素和血红蛋白颜色空间中，实现对面部瑕疵的逼真和渐进的修饰，实验结果基于实际临床数据表明该方法能逼真模拟瑕疵的渐进恢复过程。

可控和渐进的基于物理建模的面部瑕疵修饰