Patent ID: 8189911

Claim:
A method for assessing image quality between a reference image and an impaired image, each image being associated with at least one luminance component comprising the steps of: subband decomposition of the luminance component of the reference image into N subbands, called reference subbands and of the luminance component of the impaired image into N subbands, called impaired subbands; errors computation from the reference subbands and from the impaired subbands; and pooling the computed errors; wherein said subband decomposition is based on a wavelet transform adapted to decompose each of said luminance components into L levels of decomposition, and wherein L is determined as the lowest positive integer that verifies the following inequality: F max 2 L < Th , where ⁢ : ⁢ - F max = tan ⁡ ( 1 2 ) × d H × H pixel ; H is the image height in meters; H pixel is the image height in pixel; d is the distance of visualization in meters; and Th is a predefined threshold.