Halftone proofing with inkjet printers
First Claim
1. A method for preparing a bitmap image for an inkjet printer comprising:
- separating a halftone dot within the bitmap image into perimeter data and core data;
associating the perimeter data with a low-density ink channel; and
associating the core data with a high-density ink channel.
10 Assignments
0 Petitions
Accused Products
Abstract
Techniques are described for preparing halftone bitmap images for printing on inkjet printers. The techniques may involve exclusive use of low-density inks to reproduce highlight colors and means for reducing the amount of ink applied to the page within “solid” areas while maintaining complete coverage of these areas. The techniques may rely on the high addressability and larger ink palette of recent inkjet printers. For example, some inkjet printers offer seven ink channels: low and high density inks for the cyan, magenta, and black channels, and a single high-density yellow ink. In one embodiment, halftone dots within a bitmap image are separated into perimeter data and core data. The perimeter data is then associated with a low-density ink channel and the core data is associated with a high-density ink channel.
20 Citations
33 Claims
-
1. A method for preparing a bitmap image for an inkjet printer comprising:
-
separating a halftone dot within the bitmap image into perimeter data and core data; associating the perimeter data with a low-density ink channel; and associating the core data with a high-density ink channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A computer-readable medium comprising instructions to cause a programmable processor to:
-
separate a halftone dot within a bitmap image into perimeter data and core data; associate the perimeter data with a low-density ink channel; and associate the core data with a high-density ink channel. - View Dependent Claims (22, 23, 24, 25, 26, 27)
-
- 28. A system comprising a processor that prepares a bitmap image for an inkjet printer by separating a halftone dot within the bitmap image into perimeter data and core data, associating the perimeter data with a low-density ink channel, and associating the core data with a high-density ink channel.
Specification