Method and apparatus for characterizing pigment spots and its application in a method of assessing the pigmenting or depigmenting effect of a cosmetic dermatological or pharmaceutical product

摘要

The present invention relates to a method for characterizing skin pigment specks. The present invention contemplates the use of appropriate computerization means to calculate other types of gray levels to identify skin pigment spots, particularly for non-uniformity or discrepancy of the spots, from the so-called ripple image, And filtering the screen extracted from the digital image of the skin region to obtain a second sub-image that is a roughness image. The present invention also relates to a method for determining the effectiveness of treatment of pigment spot on skin by active pigmentation or decolourisation complexing agents.