A method and system for image processing, in conjunction with classification
of
images between natural pictures and synthetic graphics, using SGLD texture (e.g.,
variance, bias, skewness, and fitness), color discreteness (e.g., R_L, R_U, and
R_V normalized histograms), or edge features (e.g., pixels per detected edge, horizontal
edges, and vertical edges) is provided. In another embodiment, a picture/graphics
classifier using combinations of SGLD texture, color discreteness, and edge features
is provided. In still another embodiment, a "soft" image classifier using combinations
of two (2) or more SGLD texture, color discreteness, and edge features is provided.
The "soft" classifier uses image features to classify areas of an input image in
picture, graphics, or fuzzy classes.