Region-based image denoising

A digital camera for automatically denoising captured images, comprising:

• a device for capturing and storing an input image;
• a device for evaluating the stored input image and decomposing the input image into a plurality of discrete regions, each region being defined by estimated pixel color statistics and pixel spatial statistics;
• a device for estimating blur amounts of each region;
• a device for estimating a low-dimensional statistical model for each region as a function of the estimated pixel color statistics and pixel spatial statistics;
• a device for inferring a denoised copy of the input image as a probabilistic function of the low-dimensional statistical models;
• and
• a device for applying the estimated blur amounts to corresponding regions of the denoised copy of the input image.

A computer readable medium having computer executable instructions for automatically denoising an image, said computer executable instructions comprising:

• decomposing an input image into a plurality of discrete regions, each region being defined by estimated pixel color statistics and pixel spatial statistics;
• estimating a low-dimensional statistical model for each region as a function of the estimated pixel color statistics and pixel spatial statistics;
• and
• inferring a denoised copy of the input image as a probabilistic function of the low-dimensional statistical models.