Image Processing Apparatus Rendering Profile Comparison

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Solution Overview

Problem

Current image processing techniques for previewing printing media before printing fail to accurately reproduce the actual appearance of prints due to insufficient consideration of various conditions such as light source tint, leading to an unsatisfactory representation for designers.

Innovation Solution

An image processing apparatus and program that perform color conversion using a printing profile to generate a rendering image of a printing medium as a 3D object, allowing for physically-based rendering and display of the image in a virtual space, enabling comparison of differences in printing profiles and texture parameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If color conversion is performed using only basic color temperature correction, then the processing complexity is low, but the reproduction accuracy of actual print appearance is insufficient

Engineering Contradiction:
Improvereproduction accuracyVSAvoidprocessing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-calculating and storing multiple rendering results with different printing profile settings (with and without printing profiles) before the user makes a decision. This allows the user to compare different color conversion approaches in advance and select the most appropriate one, thereby improving reproduction accuracy without requiring complex real-time processing when the user needs to review options.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements dynamics by making the printing profile application configurable and switchable based on user selection. The system can dynamically adjust between applying printing profiles during color conversion and not applying them, allowing flexibility in processing complexity while maintaining the option for high reproduction accuracy when needed.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If multiple rendering options with different printing profile settings are generated and displayed, then the user can compare and select the best result, but the processing time and computational resources increase

Engineering Contradiction:
Improveuser selection capabilityVSAvoidprocessing time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system performs preliminary rendering of multiple options (with and without printing profiles) before user selection, allowing users to compare different approaches and make informed decisions. This preliminary action enables ease of operation by presenting ready-to-compare options, while the computational burden is distributed across pre-processing steps rather than blocking user interaction.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent creates multiple copies of the rendering result with different processing parameters (one copy with printing profile applied, another without). These copies allow users to compare different approaches without requiring complex real-time manipulation, facilitating easy selection while managing processing time through batch generation.

Inventive Principle:
Principle #26Copying

3Manufacturing precision

If printing profiles are applied during color conversion, then the color development accuracy improves, but the flexibility in color space conversion is reduced

Engineering Contradiction:
Improvecolor development accuracyVSAvoidcolor space conversion flexibility
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent applies dynamics by making the printing profile application optional and user-selectable. Users can dynamically choose whether to apply printing profiles for color conversion based on their specific needs, maintaining flexibility while enabling high precision when required. This switchable approach balances adaptability and manufacturing precision.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs preliminary color conversion both with and without printing profiles, preserving multiple conversion paths. This allows users to select the most appropriate conversion approach for their specific use case, maintaining flexibility while enabling access to high-precision printing profile-based conversion when needed.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20240126484A1Image processing apparatus, printing system, and non-transitory computer-readable storage medium storing image processing program
Publication Date: 2024.04.18 SEIKO EPSON CORP
  • US20240126484A1 patent drawing
  • US20240126484A1 patent drawing
  • US20240126484A1 patent drawing

AI summary

An image processing apparatus sets, when image data expressed in a first color space is converted, using a color conversion profile prepared in advance, into expression in a second color space used in rendering, whether to apply a printing profile including a parameter relating to color development at the time when an image is printed. The image processing apparatus performs color conversion according to the setting of the propriety of the printing profile, generates converted image data, performs, using the converted image data and a necessary parameter, physically-based rendering of a printed printing medium on which the image is printed, and generates a rendering image corresponding to appearance in a virtual space of the printed printing medium. The image processing apparatus displays the rendering image obtained in this way in a form in which a difference in the propriety of the printing profile can be compared.