Security printing using mixed spot sizes in stochastic or frequency modulated halftone images
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 4, 2025
Grant Date -
Jan 11, 2024
app pub date -
Jul 7, 2022
filing date -
Jul 7, 2022
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Abstract
Methods and systems for securely rendering a security feature with image data to be printed, can involve providing within the image data, data relating to a group of spots, and within the image data, mixing spots of two or more spot sizes among the group of spots to embed information within a stochastic or frequency modulation halftone image. In an embodiment, operations may be implemented for rendering a part of the image with a first spot among the group of spots and a remaining portion of the image with a second spot among the group of spots, wherein the second spot is smaller in size than the first spot.
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