The USPTO continues to amaze me. I mean, one would hope that any silly patent that can be awarded has already been granted. How could it get any worse? Regard US Patent 6,751,348 for protecting an "Automated detection of pornographic images ". The abstract states that the patent covers:
A method of detecting pornographic images, wherein a color reference database is prepared in LAB color space defining a plurality of colors representing relevant portions of a human body. A questionable image is selected, and sampled pixels are compared with the color reference database. Areas having a matching pixel are subjected to a texture analysis to determine if the pixel is an isolated color or if other comparable pixels surround it; a condition indicating possible skin. If an area of possible skin is found, the questionable image is classified as objectionable. A further embodiment includes preparation of a questionable image reference shape database defining objectionable shapes. An image with a detected area of possible skin is compared with the shape database, and depending on the results of the shape analysis, a predefined percentage of the images are classified for manual review.I love that "If an area of possible skin is found, the questionable image is classified as objectionable". Good-bye to the well-loved "I know it when I see it" Casablanca test.