Ink Dot Arrangement Control for Fluorescent Color Quality
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Solution Overview
Problem
When printing with fluorescent and non-fluorescent inks, overlapping ink dots can obstruct color development, leading to a decrease in color quality and a steep color change in the color gamut.
Innovation Solution
An information processing apparatus that acquires print data, generates ink data for both fluorescent and non-fluorescent inks, and adjusts the pixel arrangement and dot number of each ink to prevent overlap, ensuring the total number of dots remains consistent, thereby maintaining color quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If fluorescent ink and non-fluorescent ink are printed with overlapping dots to increase color saturation, then color development is improved, but steep color changes occur in the color gamut and color quality decreases
Solution Approach 1:
The patent segments the ink dots of fluorescent and non-fluorescent inks into separate pixel locations, preventing their overlap. By dividing the pixel arrangement such that fluorescent ink dots and non-fluorescent ink dots are placed in different pixels, the invention avoids the harmful interaction that causes steep color changes while maintaining color saturation through controlled positioning.
2Manufacturing precision
If the ink amount of each pass is increased to improve color saturation, then fluorescent image quality is enhanced, but the total ink consumption increases and drying time is extended
Solution Approach 1:
The patent applies local quality by controlling the ink amount and dot arrangement specifically in regions where fluorescent and non-fluorescent inks would otherwise overlap. By adjusting the ink amount of each pass and the dot arrangement locally, the invention achieves high color saturation without requiring excessive ink consumption across the entire image.
3Reliability
If the dot arrangement of fluorescent and non-fluorescent inks is optimized to prevent overlap, then color quality is improved, but the complexity of the printing control system increases
Solution Approach 1:
The patent implements preliminary action by pre-calculating and determining the dot arrangement of fluorescent and non-fluorescent inks before the actual printing process. The printing control system预先 determines which pixels will receive fluorescent ink and which will receive non-fluorescent ink, preventing overlap before it occurs and simplifying the real-time control requirements.
Data Source
AI summary
An information processing apparatus includes a changing unit configured to change an arrangement of pixels which are decided from the first ink data and in which the first ink is printed and the number of dots of the first ink in each pixel, based on the arrangement of pixels which are decided from the first ink data and in which the first ink is printed, and an arrangement of pixels which are decided from the second ink data and in which the second ink is printed.