A method for characterising an albedo of a land parcel, based on an acquired digital image of this land parcel using at least one camera, the method comprising: - a prior calibration of the camera, wherein an intensity correction matrix is acquired for each pixel (x,y) of the image acquired by the camera, and - a current characterisation of the albedo of a land parcel on which a target, with a known albedo α Reference, is deposited on the ground so as to be present in a current image acquired with the same camera, said current characterisation of the albedo of the land parcel being carried out through a processing of the current image wherein: • the intensity of each pixel (x,y) of the current image is divided by a coefficient of the correction matrix corresponding to this pixel, to generate a corrected current image Im Corr Site x y, • an average light intensity I average ref of the target appearing in the corrected image is estimated, and • an albedo map of the land parcel α Site (x, y) as a function of the known albedo of the target α Reference is determined, by a relationship of the type α Site ( x, y) = Im Corr Site x y I average ref ∗ α Reference and wherein, the prior calibration of the camera including: - the acquisition, using the camera, of a reference digital image of a reference object, - statistical processing of this reference image to identify a pixel standard intensity μ in the reference image, then - a comparison of each pixel intensity Im ( x, y) of the reference image with the standard intensity μ to obtain the correction matrix M corr ( x, y) of each pixel ( x, y) of the camera, characterised in that the correction matrix M corr ( x, y) of each pixel ( x, y) of the camera is expressed by a relationship of the type: M corr x y = Im x y − μ Im x y - a prior calibration of the camera, wherein an intensity correction matrix is acquired for each pixel (x,y) of the image acquired by the camera, and - a current characterisation of the albedo of a land parcel on which a target, with a known albedo α Reference, is deposited on the ground so as to be present in a current image acquired with the same camera, said current characterisation of the albedo of the land parcel being carried out through a processing of the current image wherein: • the intensity of each pixel (x,y) of the current image is divided by a coefficient of the correction matrix corresponding to this pixel, to generate a corrected current image Im Corr Site x y, • an average light intensity I average ref of the target appearing in the corrected image is estimated, and • an albedo map of the land parcel α Site (x, y) as a function of the known albedo of the target α Reference is determined, by a relationship of the type α Site ( x, y) = • the intensity of each pixel (x,y) of the current image is divided by a coefficient of the correction matrix corresponding to this pixel, to generate a corrected current image Im Corr Site x y, • an average light intensity I average ref of the target appearing in the corrected image is estimated, and • an albedo map of the land parcel α Site (x, y) as a function of the known albedo of the target α Reference is determined, by a relationship of the type α Site ( x, y) = - the acquisition, using the camera, of a reference digital image of a reference object, - statistical processing of this reference image to identify a pixel standard intensity μ in the reference image, then - a comparison of each pixel intensity Im ( x, y) of the reference image with the standard intensity μ to obtain the correction matrix M corr ( x, y) of each pixel ( x, y) of the camera,