Amazing MATH used in image

1. From Pixel to (resolution-independentVector) Vector

Nearest-neighbor result (Original: 40 x 16 pixels) Our result
Naïve upsampling of pixel art images leads to unsatisfactory results. Our algorithm extracts a smooth, resolution-independent vector representation from the image which is suitable for high-resolution display devices (Image © Nintendo Co., Ltd.).

Depixelizing 算法可以让低分辨率的像素图转化为高质量的向量图。

2. Re-Color the gray old photo

Colorization Using Optimization

3. Remove Shadow

Pyramid-Based Shadow Removal

不留痕迹地去掉照片上某件东西的阴影的算法

4. HDR

扩大亮部与暗部的对比效果,亮的地方变得非常亮,暗的地方变得非常暗,亮暗部的细节都很明显。实现HDR的软件有很多,这里推荐G’MIC(GREYC’s Magic Image Converter)。它是GIMP图像编辑软件的一个插件,代码全部开源。

5. Resynthesizer remove the noise

6. Sketch2Photo

7. Facial Attractiveness

Data-Driven Enhancement of Facial Attractiveness

Before After
Before After

 

 

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