Mobile Camera Color Fastness Measurement With Pixel-Wise Analysis

The patent uses a conventional camera to capture images of color fastness test samples, replacing the need for specialized photometric camera systems. The computational system processes these standard digital images to extract color information and calculate color fastness values, effectively copying the measurement function using ordinary equipment rather than dedicated instruments.

The patent replaces the mechanical/optical calibration systems traditionally required with computational image processing. Instead of using specialized photometric cameras with complex calibration mechanisms, the system uses standard cameras and applies computational algorithms to correct and analyze color data, substituting physical calibration infrastructure with software-based solutions.

The patent transforms the color image data from conventional cameras into accurate color fastness measurements by applying computational processing. The system extracts color values from image pixels, compares them against reference colors, and calculates color differences using standardized formulas, effectively changing the parameters from raw pixel values to meaningful color fastness metrics that compensate for the camera's limitations.

The patent introduces a computational system as an intermediary between the conventional camera and the color fastness measurement. This computational layer processes the raw image data, applies color space transformations, performs reference comparisons, and generates accurate color fastness values, acting as a mediator that bridges the gap between simple camera hardware and precise measurement requirements.