| 摘要 |
The present invention relates to a method for measuring the uniform diffuse reflectance ROBJ(lambda) at least at one point on an object (30) using a device (10) comprising a means (11) for emitting color illuminants expressed as luminous flux and an electronic colour image sensor (12). The present invention also relates to a device (10) comprising a means (11) for emitting color illuminants expressed as luminous flux of colors and an electronic colour image sensor (12), for measuring the uniform diffuse reflectance ROBJ(lambda) at least at one point on an object (30) placed in a zone located opposite and substantially perpendicular to said means (11) for emitting colours and located in the field of vision of said electronic colour image sensor (12) and subjected to an external illuminant expressed as a constant and unknown external environmental luminous flux (40) denoted Iext(lambda). |
