Image sharpness processing method and apparatus, and a storage medium storing a program
First Claim
1. An image sharpness processing method for enhancing or suppressing tone variations in outline portions of an original image, comprising:
- a processing direction designating step for designating, on said original image displayed on a display screen, at least a direction for gradually changing a strength of sharpness processing as a condition of the sharpness processing;
a strength deriving step for deriving a strength of sharpness processing for each pixel in said original image, such that the strength of sharpness processing gradually changes in said direction of sharpness processing designated; and
a processing step for applying a sharpness processing to said original image according to said strength of sharpness processing derived for each pixel.
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Accused Products
Abstract
A sharpness processing method and apparatus, and a storage medium storing a program, for presenting images with increased perspective or three-dimensional effect. At least two points are designated in a direction of distance on an original image displayed on a display screen. The original image is divided by lines extending perpendicular to and touching opposite ends of a vector defined by the two points. An output image in the proper perspective is obtained by applying no processing to a near view area in the original image, applying a uniformly strong blur processing to a distant view area, and processing an intermediate area in a way to increase blur gradually in the direction indicated by the vector.
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Citations
13 Claims
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1. An image sharpness processing method for enhancing or suppressing tone variations in outline portions of an original image, comprising:
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a processing direction designating step for designating, on said original image displayed on a display screen, at least a direction for gradually changing a strength of sharpness processing as a condition of the sharpness processing; a strength deriving step for deriving a strength of sharpness processing for each pixel in said original image, such that the strength of sharpness processing gradually changes in said direction of sharpness processing designated; and a processing step for applying a sharpness processing to said original image according to said strength of sharpness processing derived for each pixel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An image sharpness processing apparatus for enhancing or suppressing tone variations in outline portions of an original image, comprising:
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original image data storage means for storing image data of each pixel in said original image; image display means for displaying images; processing direction designating means for causing said original image read from said original image data storage means to be displayed on said image display means, and designating, on said original image displayed on said image display means, at least a direction for gradually changing a strength of sharpness processing; strength deriving means for deriving a strength of sharpness processing for each pixel in said original image, such that the strength of sharpness processing gradually changes in said direction of sharpness processing designated; and processing means for applying a sharpness processing to said original image according to said strength of sharpness processing derived for each pixel. - View Dependent Claims (12)
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13. A storage medium storing a program for causing a computer to execute an image sharpness processing for enhancing or suppressing tone variations in outline portions of an original image, said storage medium storing a program for causing a computer to execute:
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a processing direction designating step for designating, on said original image displayed on a display screen, at least a direction for gradually changing a strength of sharpness processing; a strength deriving step for deriving a strength of sharpness processing for each pixel in said original image, such that the strength of sharpness processing gradually changes in said direction of sharpness processing designated; and a processing step for applying a sharpness processing to said original image according to said strength of sharpness processing derived for each pixel.
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Specification