Semi-transparent embedded watermarks

A system, comprising:

• one or more processors;
• and
• one or more computer-readable media having instructions stored thereon that, when executed by the one or more processors, cause performance of operations comprising:
• receiving an encoded image at a computing system, wherein the encoded image includes a set of encoded pixels that encode data in the encoded image, and each encoded pixel encodes a portion of the data and is associated with a respective set of one or more non-encoded pixels located at pre-defined positions of the encoded image relative to the encoded pixel, wherein the sets of non-encoded pixels are interspersed among the set of encoded pixels and form spaces between the set of encoded pixels;
• for each encoded pixel in the set of encoded pixels, decoding a value represented by the encoded pixel by comparing a color of the encoded pixel to colors of the respective set of non-encoded pixels located at the pre-defined positions relative to the encoded pixel;
• and
• using the values decoded from the set of encoded pixels to recover data that was encoded in the encoded image.

One or more non-transitory computer-readable media having instructions stored thereon that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• receiving an encoded image at a computing system, wherein the encoded image includes a set of encoded pixels that encode data in the encoded image, and each encoded pixel encodes a portion of the data and is associated with a respective set of one or more non-encoded pixels located at pre-defined positions of the encoded image relative to the encoded pixel, wherein the sets of non-encoded pixels are interspersed among the set of encoded pixels and form spaces between the set of encoded pixels;
• for each encoded pixel in the set of encoded pixels, decoding a value represented by the encoded pixel by comparing a color of the encoded pixel to colors of the respective set of non-encoded pixels located at the pre-defined positions relative to the encoded pixel;
• and
• using the values decoded from the set of encoded pixels to recover data that was encoded in the encoded image.