18147512. THRESHOLD MATRIX GENERATING METHOD simplified abstract (CANON KABUSHIKI KAISHA)
Contents
THRESHOLD MATRIX GENERATING METHOD
Organization Name
Inventor(s)
Junichi Nakagawa of Tokyo (JP)
THRESHOLD MATRIX GENERATING METHOD - A simplified explanation of the abstract
This abstract first appeared for US patent application 18147512 titled 'THRESHOLD MATRIX GENERATING METHOD
Simplified Explanation
The abstract describes a method for printing dot patterns on a print medium using two different threshold matrices. The threshold matrices are generated by creating initial dot patterns for different grayscale values and setting thresholds to obtain dot patterns with continuity between these grayscale values.
- The method involves printing two dot patterns on a print medium.
- The dot patterns are generated using two different threshold matrices.
- The threshold matrices are created by generating initial dot patterns for different grayscale values.
- The thresholds of the threshold matrices are set to ensure continuity between the initial dot patterns.
- The resulting dot patterns are printed on the print medium in an overlapping manner.
Potential applications of this technology:
- Printing high-quality images with smooth transitions between different grayscale values.
- Creating artistic prints with unique dot patterns.
- Enhancing the visual appeal of printed materials.
Problems solved by this technology:
- Ensuring smooth transitions between different grayscale values in printed images.
- Avoiding abrupt changes in dot patterns that can result in visual artifacts.
- Providing a method for generating threshold matrices that produce desired dot patterns.
Benefits of this technology:
- Improved print quality with smooth transitions between grayscale values.
- Enhanced visual appeal of printed materials.
- Flexibility in creating dot patterns for different grayscale values.
Original Abstract Submitted
A first dot pattern printed according to a result of quantization performed on a multi-valued grayscale value by using a first threshold matrix and a second dot pattern printed according to a result of quantization performed on multi-valued grayscale value by using a second threshold matrix are printed on a print medium in an overlapping manner. In order to generate the threshold matrices, a first initial pattern being a dot pattern corresponding to a first grayscale value and a second initial pattern being a dot pattern corresponding to a second grayscale value lower than the first grayscale value are generated for pixel regions of the first and second threshold matrices. Then, thresholds of the first and second threshold matrices are set such that dot patterns having continuity with the first and second initial patterns are obtained at grayscale values between the first and second grayscale values.
