Illumination Estimation for Nature Preserving low-light image enhancement

<div>In this paper, we proposed a new low-light image enhancement</div><div>approach to overcome the above limitations. The</div><div>proposed algorithm is named as Nature Preserving Lowlight</div><div>Image Enhancement (NPLIE). NPLIE estimates initial</div><div>illumination and performs optimal refinement. The proposed</div><div>algorithm computes the reflectance component through an</div><div>element-wise division of input image by illumination. The enhanced image is obtained as a product of adjusted illumination and reflectance component. In this work, we estimate initial</div><div>illuminance from structure-aware smoothening of a low-light</div><div>image using guided filters of variable box sizes. We compute</div><div>refined illumination by solving the proposed multi-objective</div>