System, method and medium performing color correction of display images

摘要

A system, method and medium correcting a display image. The system includes a parameter calculation module to calculate a plurality of parameters required for a transform of a first image, based on a plurality of characteristic differences between the first image and a second image, into which the first image is to be transformed to visually match the second image, a first characteristic transform module to transform a first characteristic of the first image using the plurality of calculated parameters, the transformation resulting in an unrelated change to a second characteristic of the first image, and a second characteristic restoration module to restore the second characteristic changed by the transforming of the first characteristic.

主权项

1. An apparatus to correct a display image, comprising:
a parameter calculation unit to calculate, using one or more processors, a plurality of parameters required for a transform of a first image, based on a plurality of characteristic differences between the first image and a second image, into which the first image is to be transformed to visually match the second image; a characteristic transform unit to transform a first characteristic of the first image using the plurality of calculated parameters, the transformation resulting in an unrelated change to a second characteristic of the first image; and a characteristic restoration unit to restore the second characteristic changed by the transforming of the first characteristic to a value of the first image, previously held before the unrelated change, wherein the first characteristic comprises a hue component and the second characteristic comprises at least one of a saturation component and a brightness component, wherein each of the characteristic transform unit and the characteristic restoration unit comprises at least one of a hue transform function, a saturation transform function, and a brightness transform function, wherein the parameters for brightness correction comprise a maximum brightness information for each hue, and wherein the parameter calculation unit compares a hue component of the first image with a color component of the second image, determines whether a result of the comparison is within a basic range, and maintains an RGB space when the comparison result is within the basic range.