Robust Encoding of Metadata in Lossy Encoded Images

摘要

Processing an image with embedded metadata by determining an integer value of a byte and separate the integer value into a plurality of digits, converting each of the digits into an encoding value using a predefined conversion function, selecting a pixel block in a metadata container, encoding into the selected pixel block each of the encoding values, and after the pixel block is encoded using a lossy compression scheme and subsequently decoded into raw pixel data, extracting the metadata from the raw pixel data, and performing at least one predefined action using the metadata.