Photometric Stereo Toolkit

Dependencies

• Matlab
• Flann

Download

Clone this repository and download data.

git clone https://github.com/imkaywu/PSKit
cd PSKit

Dataset

For the structure of datasets of example-based photometric stereo, please visit here for details.

Source code

DfN: multiple algorithm to integrate a surface from normal/gradient map

• compute_heightMap: compute the height map based on normal map and mask using linear least squares

• integrate_horn2: estimate height map using Horn's method

• DepthFromGradient: estimate height map from gradient map, from Ying Xiong's DfGBox

include/:

• decode: decode from RGB image to normal map;

• encode: encode from normal map to RGB image;

• esti_surf: estimate height map from normal map

• gen_normals: generate uniformly distributed normals

• read_normals: read normals from a text file

• show_surfNorm: display the surface normal

• nmap2norm: transform Px3 normal matrix to MxNx3 normal map

• norm2nmap: transform MxNx3 normal map to Px3 normal matrix

io/:

• write_ply: write vertex and color information into a PLY file

src/: contains source code for various PS algorithms

Demo

run main_svbrdf and main_lls_ps.

Results

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License

MIT