1. A method for validation of whether an object is an element of the human body comprising at least the following steps: illumination, by at least one first light source emitting in the infrared and by at least one second light source emitting in the visible spectrum, of an object whereof the aim is to validate that said object corresponds to an element of the human body, said second light source emitting light at wavelengths inferior to those of the first source; acquisition of an image by an image sensor, the pixels of said image being associated with at least two characteristic values respectively of a first color component and of a second color component, said second component corresponding to at least one wavelength of the second source, the respective light powers of illumination of the first light source and of the second light source being previously calibrated so that the first color component and the second color component are statistically balanced for an authentic element of the human body, wherein the first color component and the second color component are statistically balanced for an authentic element of the human body when a difference between the first color component and the second color component in an area of an image corresponding to said authentic element of the human body is less than a threshold; execution of a validation processing as a function of comparisons between the values of the second component of the pixels of an area of interest of the image and the values of the first component of said pixels; validation or not of the authenticity of the object as a function of the result of the validation processing.