Image Processing Device Pixel Number Dependent Resolution Correction
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Solution Overview
Problem
Conventional image processing techniques often result in unnecessary resolution correction processes that cause differences in the appearance of printed and displayed images due to the disparity in resolution between display devices and printers, leading to unsatisfactory print image quality.
Innovation Solution
An image processing device with a display-equivalent and printer-equivalent image formation area, a judging unit to determine if image formation commands are pixel number dependent, and a print image formation unit that adjusts the number of pixels based on the resolutions of both areas to ensure accurate representation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If resolution correction process is applied to all image formation commands, then the appearance difference between displayed and printed images is reduced, but unnecessary correction is applied to non-pixel-dependent commands causing distorted appearance
Solution Approach 1:
The patent changes the parameter being controlled from a blanket resolution correction approach to a selective approach based on command type analysis. The judging unit examines each image formation command to determine if it is pixel number dependent, and only applies resolution correction to commands that meet this criterion. This parameter-based selection resolves the contradiction by applying correction only where appropriate.
Solution Approach 2:
The patent applies different processing treatments to different types of image formation commands based on their characteristics. Pixel number dependent commands receive resolution correction to maintain appearance consistency, while non-pixel-dependent commands are processed differently to preserve their original fidelity. This localized quality approach resolves the contradiction by tailoring the correction application to the specific command type.
2Manufacturing precision
If the number of pixels is increased for print image to match printer resolution, then print image quality improves, but processing complexity increases
Solution Approach 1:
The patent performs preliminary analysis of image formation commands to identify which ones are pixel number dependent before applying resolution correction. By pre-classifying commands and only applying the computationally intensive pixel increasing process to relevant commands, the system improves print image quality while minimizing unnecessary processing complexity.
Data Source
AI summary
An image processing device has a first print data receiving unit that receives first print data containing at least one image formation command, and a judging unit that judges whether each image formation command included in the first print data is a pixel number dependent command. An image processing device is configured such that a print image formation unit forms the print image on the printer-equivalent image formation area with increasing the number of pixels of the print image in accordance with the resolutions of the display-equivalent image formation area and the printer-equivalent image formation area if a judging unit judges that the image formation command is the pixel number dependent command, and the print image formation unit forms the print image on the printer-equivalent image formation area without modifying the print image if the judging unit judges that the image formation command is not the pixel number dependent command.