A method of estimating a fault with colored vignetting of an image capture system, said defect producing, with respect to at least any first image acquired by the image capture system and representing a scene Any variation in the colorimetric field of the first image is proposed, which includes: calculating a measurement relating to the colorimetry of the first image; obtaining an estimated magnitude of the color vignetting defect, from the calculated measurement, and determining, from the magnitude obtained, at least one parameter for correcting said defect for at least one second image acquired by the image capture system , the second image being distinct from the first image.
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