bayesian image filter

I need an image filter to classify images based on a pre-populated image database. The input will be a image filename , the output should be a score between 0 - 100. The filter should compare colors, shapes and sizes. The database should contain images that increment the score accordingly: example: if theres a picture of an arm in the database, flagged with "shape = 100%" , an input image of a person should have its score incremented due to this match ## Deliverables 1) first version to check if the project is in right way with colors, shapes and sizes 2) bug report 3) final ## Platform Linux - preferably fedora