Systems and methods for implementing a micro-symbol-based security mark

A system for implementing a security mark, comprising:

• an image source configured to provide an input image of a document;
• and
• a processor operating in communication with the image source, wherein the processor is configured to:
• receive the input image, wherein the input image comprises a region with no content;
• receive a predefined security label for the input image;
• select a micro-symbol based on the received security label, the micro-symbol comprising microtext characters having a principal character and a set of peripheral characters, wherein the peripheral characters in the set have a same color along a set direction from the principal character;
• and
• generate an output image based on the selected micro-symbol, the output image including the selected micro-symbol embedded in the region, wherein the micro-symbol represents a security mark pertaining to a preset task.

A computer program product for implementing a security mark, the computer program product comprising a computer-readable storage medium having program instructions embodied therewith, the program instructions executable by a computing device to cause the computing device to perform operations comprising:

• receiving an input image comprising a micro-symbol representing a security mark, wherein the micro-symbol further comprises microtext characters defining a shape of the micro-symbol;
• determining a principal character in the microtext characters of the micro-symbol;
• determining a set of peripheral characters in the microtext characters based on the principal character, the set being determined based on the peripheral characters therein having a same color along a fixed direction from the principal character, wherein the fixed direction corresponds to a set angle with respect to a horizontal axis;
• comparing the color and the angle associated with the set of peripheral characters with a color and an angle associated with one or more pre-stored micro-symbols;
• upon successful comparison, determining a security label associated with the micro-symbol;
• and
• inhibiting a preset task for the input image based on the determined security label.