Display Color Remapping for Color Vision Deficiency

The patent applies different modification strategies to different color components (red, green, blue) based on the specific color deficiency type. For example, for protanopia, the red component is replaced using a specific transformation matrix, while for deuteranopia, the green component is modified differently. This localized approach allows optimization for color discernibility while preserving original hue characteristics as much as possible.

The patent transforms color data by changing parameters such as RGB values to alternative color spaces (LMS, XYZ) and back, applying transformation matrices specific to the type of color deficiency. This parameter transformation enables the same image to be displayed with enhanced color differentiation for users with color vision deficiency while maintaining visual fidelity to the original image.

The patent incorporates user input to determine the specific type of color deficiency (protanopia, deuteranopia, or tritanopia) and applies corresponding transformation matrices. This feedback mechanism ensures that the color adjustment is optimized for the user's specific deficiency type, enhancing color distinction while attempting to preserve saturation levels through targeted modifications rather than global changes.

Instead of uniformly modifying all color components, the patent applies partial modifications only to the specific color channels that cause confusion for the user's deficiency type. For example, in protanopia, only the red component is transformed, while green and blue remain relatively unchanged. This partial action approach enhances color distinction in problematic areas while preserving saturation in unaffected areas.