Joint Multi-Scale Tone Mapping and Denoising for HDR Image Enhancement
Joint Multi-Scale Tone Mapping and Denoising for HDR Image Enhancement
An image processing unit (IPU), or image signal processor (ISP) for high dynamic range (HDR) imaging usually consists of demosaicing, white balancing, lens shading correction, color correction, denoising, and tone-mapping. Besides noise from the imaging sensors, almost every step in the ISP introduces or amplifies noise in different ways, and …