Noise reduction method for high dynamic range videos

A method for denoising high dynamic range video content, the method comprising:

• identifying flat blocks of a plurality of frame blocks associated with a first frame of the high dynamic range video content, the plurality of frame blocks comprising the flat blocks and non-flat blocks, wherein the flat blocks have a spatial and temporal intensity variance that is less than a threshold;
• for respective flat blocks of the flat blocks:
• determining an average intensity value for the flat block;
• and
• determining a noise model that represents noise and non-noise characteristics of the flat block;
• generating a denoising function that correlates the average intensity values with the noise models;
• and
• denoising the plurality of frame blocks using the denoising function.