Method and apparatus for adjusting quality of a displayed image
AssigneeSeiko Epson Corporation
InventorKesatoshi Takeuchi
Life of this patent
Estimating the term…
Abstract
Specific image quality adjustment of an image is performed according to a setting made by a user, and contrast compensation is performed such that a brightness is kept unchanged at the center of a specific color region larger than a predetermined size, regardless of the setting of the image quality adjustment. The image quality adjustment is performed by selecting one of a plurality of filters with different frequency characteristics according to the setting of the image quality adjustment, and then performing filter processing on the image by using the selected filter. The contrast compensation is performed upon the image that has undergone the filter processing, by using a contrast compensation value related to the selected filter.
Claims21
An image display apparatus, comprising:
- an image display device configured to display an image;
- a setting section configured to allow a user to set image quality adjustment excluding contrast and brightness adjustments of the image;
- and
- an image processing section configured to perform the image quality adjustment of the image according to the setting made by the user, and to perform contrast compensation to maintain a brightness at a center of a specific color region larger than a predetermined size within the image displayed by the image display device, regardless of the setting of the image quality adjustment.
An image processing device, comprising:
- an image filter configured to perform filter processing of an image by using a selected one of a plurality of filters with different frequency characteristics;
- and
- a contrast compensation section configured to perform contrast compensation using a contrast compensation value, related to the selected filter, to maintain a brightness at a center of a specific color region larger than a predetermined size within an image that has undergone the filter processing, regardless of which filter is selected from the plurality of filters.
An image display apparatus, comprising:
- means for displaying an image;
- means for allowing a user to set image quality adjustment excluding contrast and brightness adjustments of the image;
- and
- means for performing the image quality adjustment of the image according to the setting made by the user, and for performing contrast compensation to maintain a brightness at a center of a specific color region larger than a predetermined size within the image displayed, regardless of the setting of the image quality adjustment.
An image processing device, comprising:
- means for performing filter processing of an image by using a selected one of a plurality of filter means with different frequency characteristics;
- and
- contrast compensation means for performing contrast compensation using a contrast compensation value, related to the selected filter means, to maintain a brightness at a center of a specific color region larger than a predetermined size within an image that has undergone the filter processing, regardless of which filter means is selected from the plurality of filter means.
A method of displaying an image on an image display device, comprising the steps of:
- (a) setting a set value for image quality adjustment excluding contrast and brightness adjustments of the image;
- and
- (b) performing the image quality adjustment on the image according to the setting, and performing contrast compensation to maintain a brightness at a center of a specific color region larger than a predetermined size within an image displayed by the image display device, regardless of the setting of the image quality adjustment.
A method of processing image, comprising the steps of:
- (a) performing filter processing of an image by using a selected one of a plurality of filters with different frequency characteristics;
- and
- (b) performing contrast compensation using a contrast compensation value, related to the selected filter, to maintain a brightness at a center of a specific color region larger than a predetermined size within an image that has undergone the filter processing, regardless of which filter is selected from the plurality of filters.
Dependencies are inferred from the claim text.