The invention relates to a process of shadow identification in a digital image.
The digital image comprises a set of image points that can be located in a plane
of the image, with each image point being associated with a color and brightness.
The color is defined by chromatic components that can be located in the color space
of an acquisition system, and the brightness is determinable from the chromatic
components. According to the process of the present invention, for each image point,
the brightness is determined; color standardization is carried out, leading to
standardized chromatic components r, g, b; a chromatic brightness is determined
from the standardized chromatic components r, g, b; and the chromatic brightness
is compared with the brightness, to identify the presence of a shadow on the relevant
image point.
