Image Preview Generation for White Toner Ambiguity
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Solution Overview
Problem
Current image processing systems fail to accurately distinguish between white areas specified in print jobs and the background of the recording medium, leading to unclear previews, especially when white toner is used on colored backgrounds.
Innovation Solution
An image processing apparatus that determines the display color of areas corresponding to the recording medium, using available white toner only when necessary, and generates display images that differentiate between chromatic and achromatic parts by employing alpha blending and color identification based on attribute information from print jobs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If white toner is used to represent white areas in print jobs, then the preview should accurately show white areas, but it becomes difficult to distinguish between white areas and the background color of the recording medium
Solution Approach 1:
The patent segments the preview image into multiple layers: a background color layer representing the recording medium, and a print output layer representing the printed content. By separating these elements into distinct layers with different transparency settings, the system allows users to clearly distinguish between white areas (which appear as transparent/see-through to the background) and the actual background color of the recording medium, thereby resolving the ambiguity while maintaining accurate white area representation.
2Ease of operation
If the preview displays the background color of the recording medium, then user clarity is improved, but the complexity of the image processing system increases
Solution Approach 1:
The patent introduces an intermediary background color layer that acts as a mediator between the recording medium properties and the final preview display. This layer contains the background color information and can be selectively applied with controlled transparency, allowing the system to display background colors when needed while maintaining a simpler base processing structure. The intermediary layer approach adds functionality without significantly complicating the core image processing pipeline.
Data Source
AI summary
An image processing apparatus includes an obtaining unit that obtains attribute information that specifies a process performed by an image forming apparatus in accordance with a print job including print data, an identification unit that identifies a color of a recording medium specified by the attribute information, a generation unit that generates a display image on a basis of the color of the recording medium identified by the identification unit and the print data included in the print job, and a determination unit that determines, as the color of the recording medium identified by the identification unit, a display color of a drawing area which corresponds to an area of the recording medium for printing the print data and in which the display image generated by the generation unit is to be disposed.