One-Dimensional Color Transform Creation via Curve Association
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Solution Overview
Problem
Existing methods for creating one-dimensional color transforms are time-consuming and require iterative adjustments, which can affect the color response of a device, making it difficult to quickly adjust or emulate device conditions without additional measurements.
Innovation Solution
A non-iterative system and method using device-independent color space (DIC) curves to establish one-dimensional transforms by identifying associations between DIC and device-dependent color space (DDC) curves, allowing for adjustments to be made based on specific color characteristics and extents, thereby approximating desired color adjustments without iterative processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If manual adjustment of one-dimensional transforms is performed to correct color response mismatches, then the ability to quickly adjust device response is improved, but the complexity and time required to achieve ideal adjustment increases
Solution Approach 1:
The patent introduces an intermediary computational model that predicts the impact of one-dimensional transform changes on overall color response. This mediator allows operators to see projected effects before making adjustments, reducing trial-and-error iterations and simplifying the adjustment process while maintaining speed.
Solution Approach 2:
The system performs preliminary computation of the impact of potential transform adjustments on color response before the actual adjustment is made. This allows the operator to understand the consequences of adjustments in advance, reducing the need for multiple iterative corrections and simplifying the overall process.
2Manufacturing precision
If iterative adjustments are made to one-dimensional transforms to compensate for color response changes, then color accuracy is improved, but the time required for adjustment increases
Solution Approach 1:
The patent implements a feedback mechanism where the computational model continuously predicts the impact of transform changes on color response. This feedback loop allows operators to make informed adjustments with confidence that the predicted outcome will achieve the desired color accuracy, reducing the number of iterations needed.
Solution Approach 2:
The system performs preliminary computation of the impact of potential transform adjustments on color response before the actual adjustment is made. This advance calculation reduces uncertainty and allows for more accurate single-pass or fewer-iteration adjustments, saving time while maintaining precision.
3Manufacturing precision
If multiple one-dimensional transforms are adjusted to correct color casts, then color accuracy is improved, but the risk of introducing new color casts or affecting neutral gradation uniformity increases
Solution Approach 1:
The computational model acts as an intermediary that evaluates the combined impact of multiple transform adjustments on both color cast correction and neutral gradation uniformity. This mediator provides a comprehensive view of trade-offs, allowing operators to make adjustments that correct color casts while minimizing negative impacts on neutral reproduction stability.
Data Source
AI summary
One-dimensional color transforms are automatically calculated by identifying at least one device-independent color space curve, at least one device-dependent color space curve and at least one association amongst the curves. Depending on the motivation for creating the one-dimensional transform, different curves, associations and calculations can be used to generate the transforms without obtaining additional device measurements or iteratively adjusting transform values.