Patent ID: 9179033
Filing Date: 2015-11-03
Classification: G06T,H04N

Abstract:
1. A method comprising: receiving image data comprising a plurality of pixels, wherein the image data represents a blue channel, a green channel and a red channel for each of the plurality of pixels, wherein the blue channel of a subset of pixels has been adjusted by a first factor to embed steganographic indicia, wherein the green channel and red channel of the subset of pixels have been adjusted by a second factor offsetting a luminance change resulting from adjusting the blue channel by the first factor, and wherein the blue channel, the green channel, and the red channel each comprise distinct pixel components; minimizing image interference by combining data representing the blue channel in each pixel, data representing the green channel in each pixel and data representing the red channel in each pixel to yield combined red, green, and blue channel data for each pixel; reducing image saturation by shifting the combined and minimized channel data; and searching, using a programmed electronic processor or electronic hardware, for the steganographic indicia in the shifted, combined, and reduced channel data.