公开(公告)号：US20240064260A1

公开(公告)日：2024-02-22

申请号：US18261042

申请日：2021-02-11

申请人： Hewlett-Packard Development Company, L.P.

发明人： Tal FRANK ,  Orel BAT MOR ,  Shani GAT ,  Gideon AMIR ,  Itamar ROTH ,  Ram DAGAN

IPC分类号： H04N1/405 ,  H04N1/32

CPC分类号： H04N1/4055 ,  H04N1/32256

摘要： In an example, a method includes obtaining, by at least one processor, a first halftone screen tile having a first halftone pattern. In some examples, the method further comprises obtaining a second halftone screen tile having a second halftone pattern. The method may include determining a halftone screen having a predetermined spatial arrangement of the first and second halftone screen tiles wherein the relative placement of the first and second halftone screen tiles in the predetermined spatial arrangement provides a signature for the halftone screen which when applied to image data provides a printed output in which the signature is discernible.