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US 2017/0094115 A1Published application
Image processing system and image processing method
AssigneeCanon Kabushiki Kaisha
InventorToshimitsu Nakano
Life of this patent
Estimating the term…
Abstract
In a case where a line width defined by a drawing command that is given to draw the line is smaller than a predetermined width, a line width of the drawing command is changed to a predetermined even-number pixel width.
Claims16
An image processing system that performs correction of shifting bitmap data in a sub-scanning direction so as to cancel bending of an electro-photographic laser scanning line, comprising:
- a line command conversion unit that converts a first line drawing command defining a line width as an even-number pixel width smaller than a predetermined even-number pixel width into a second line drawing command defining a line width as the predetermined even-number pixel width;
- a generation unit that generates binary bitmap data with first resolution on a basis of drawing data including the second drawing command;
- a correction unit that performs the correction with respect to the binary bitmap data that is generated;
- a resolution conversion unit that converts the binary bitmap data, which is corrected, into multi-value bitmap data with second resolution lower than the first resolution;
- and
- an output unit that outputs the multi-value bitmap data, which is converted, to a printing unit.
3 more elements
An image processing method of performing correction of shifting bitmap data in a sub-scanning direction so as to cancel bending of an electro-photographic laser scanning line, comprising:
- converting a first line drawing command defining a line width as an even-number pixel width smaller than a predetermined even-number pixel width into a second line drawing command defining a line width as the predetermined even-number pixel width;
- generating binary bitmap data with first resolution on a basis of drawing data including the second drawing command;
- performing the correction with respect to the binary bitmap data that is generated;
- converting the binary bitmap data, which is corrected, into multi-value bitmap data with second resolution lower than the first resolution;
- and
- outputting the multi-value bitmap data, which is converted, to a printing unit.
3 more elements
Dependencies are inferred from the claim text.