Method and apparatus for in-camera image marking and authentication

摘要: A camera with a built in microprocessor system programmed to receive an input password and indicium from host computer. The is configured use the combination conversion formula mark original acquired image non-destructive manner form modified data add header. also creates authentication for comparison corresponding of questionable second determine if same as or different image. This process marking creating all occur during acquisition prior any storage medium which person could subsequently access data. takes stores it along marked memory subsequent transmission preferred embodiment involves creation checksum data, involving addition pixel values each row column. These sums are then stored lookup table future comparing result calculation done on at time. can be viewed only through presentation password.