Patent ID: 8417055

Claim:
An image processing method comprising: obtaining a first image and a second image of approximately a same scene, the first image being a relatively underexposed, sharp image of the scene compared with the second image, the second image comprising a relatively well exposed, blurred image compared with the first image, the first and second images being derived from respective image sources; providing a portion of the first relatively underexposed image as an input signal to an adaptive filter; providing a corresponding portion of the second relatively well exposed image as a desired signal to the adaptive filter; adaptively filtering the input signal to produce an output signal, including multiplying the input signal by a coefficient that is calculated from values of the input signal and the desired signal; and constructing a first filtered image from the output signal, relatively less blurred than the second image, and wherein the first and second images are in RGB format and wherein the image portions comprise a respective color plane of the first and second images, and wherein the adaptively filtering and constructing of the first filtered image comprise applying the color plane of the relatively well-exposed, blurred second image to the color plane of the relatively underexposed, sharp first image to enhance the color plane of the first image to construct the first filtered image.