Patent ID: 9563927
Date: 2017-02-07
CPC Classifications: G06T

Claim:
1. A method involving the rendering of information on a viewing screen, the information including foreground and background information, the foreground information including text characters, the information being rendered so that the background information is not visible on the screen at points where text characters are presented, characterized in that: the background information has a plural-bit machine-readable data payload encoded therein, and the method includes: receiving a zoom control signal from a user interface; in response to said zoom control signal, changing, by a first amount, a scale at which the foreground information is rendered on the screen; and in response to said zoom control signal, altering, by a second amount, a scale at which the background information is rendered on the screen; wherein the absolute value of the second amount is less than the absolute value of the first amount; and wherein, after the scale of the background information has been altered in response to the zoom control signal, the scale of the background information remains fixed until a new zoom control signal is received from the user interface, and a physical scale of a digital watermark in electronic imagery is de-coupled from the physical size of a digital display, the size of a display window, or a zoom level.