Patent ID: 6765585
Filing Date: 2004-07-20
Classification: G09G,H04N

Abstract:
An image display system which converts image information used for displaying an image and displays the image, based on environmental information obtained by a visual environment detection means which detects visual environment in a display area in which the image is displayed, the image display system comprising:matrix generation means which generates a conversion matrix used for conversion, based on the environmental information and an image characteristic selected by a user, so as to display the image that is suited to the visual environment and the image characteristic; matrix conversion means which converts the image information, based on the generated conversion matrix; image display means which displays the image based on the converted image information; and a color gamut calculation means which calculates a target color gamut based on the image characteristic and also calculates a displayable color gamut that is displayable by the image display means in the visual environment, based on the environmental information, the image characteristic is based on at least one of an image display method and an image classification, and the matrix generation means generates different conversion matrices according to a relationship between the displayable color gamut and the target color gamut, the relationship including a case where the displayable color gamut is larger than the target color gamut, a case where the displayable color gamut is smaller than the target color gamut, a case where the displayable color gamut matches the target color gamut, and a case where the displayable color gamut has a portion that overlaps the target color gamut and a portion that does not overlap the target color gamut.