Image processing apparatus, image processing method and program
AssigneeSony Corporation
InventorHiroshi Abe
Life of this patent
Estimating the term…
Abstract
An image processing apparatus can improve the image quality of images. The image processing apparatus includes a parameter extracting unit that extracts a parameter for expressing the degree of sharpness of each image when a plurality of images are obtained with different degrees of sharpness by decomposing an original image, using input image data, a parameter adjusting unit that adjusts the parameters of the images extracted by the parameter extracting unit so as to make the original image sharp and a generating unit that generates the original image on the basis of the parameters of the images adjusted by the parameter adjusting unit.
Claims9
An image processing apparatus comprising:
- a parameter extracting unit that extracts a parameter for expressing the degree of sharpness of each of a plurality of images, each said image obtained with a different degree of sharpness by decomposing an original image, using input image data, each parameter being an element of a diagonal matrix, said diagonal matrix obtained as a result of said decomposing of the original image, said decomposing performed by singular value decomposition;
- a parameter adjusting unit that adjusts each extracted parameter so as to sharpen the original image;
- and
- an image generating unit that generates an output image on the basis of the adjusted parameters,
- wherein,
- the parameter extracting unit extracts stepwise parameters expressing the degrees of sharpness of the images according to the degrees of sharpness, and
- the parameter adjusting unit alters the extracted parameters by at least one of:
- (a) pulling down an extracted parameter of an image showing a low degree of sharpness;
- and (b) pulling up an extracted parameter of an image showing a high degree of sharpness.
A method executed by an image processing apparatus, said apparatus comprising a parameter extracting unit, a parameter adjusting unit and an image generating unit, said method comprising:
- a first step of extracting, with the parameter extracting unit, a parameter for expressing the degree of sharpness of each of a plurality of images, each said image obtained with a different degree of sharpness by decomposing an original image, using input image data, each parameter being an element of a diagonal matrix, said diagonal matrix obtained as a result of said decomposing of the original image, said decomposing performed by singular value decomposition;
- a second step of adjusting, with a parameter adjusting unit, each extracted so as to sharpen the original image;
- and
- a third step of producing, with an image generating unit, an output image on the basis of the adjusted parameters,
- wherein,
- the first step is adapted to extract stepwise parameters expressing the degrees of sharpness of the images according to the degrees of sharpness, and
- the second step is adapted to alter the extracted parameters by at least one of:
- (a) pulling down an extracted parameter of an image showing a low degree of sharpness;
- and (b) pulling up an extracted parameter of an image showing a high degree of sharpness.
A computer-readable medium containing instructions that cause a program in a data processing system for causing a control apparatus to execute:
- a first process that extracts a parameter for expressing the degree of sharpness of each of a plurality of images, each said image obtained with a different degree of sharpness by decomposing an original image, using input image data, each parameter being an element of a diagonal matrix, said diagonal matrix obtained as a result of said decomposing of the original image, said decomposing performed by singular value decomposition;
- a second process that adjusts each extracted parameter so as to sharpen the original image;
- and
- a third process that generates an output image on the basis of the adjusted parameters,
- wherein,
- the second process is adapted to extract stepwise parameters expressing the degrees of sharpness of the images according to the degrees of sharpness, and
- the second process is adapted to alter the extracted parameters by at least one of:
- (a) pulling down an extracted parameter of an image showing a low degree of sharpness;
- and (b) pulling up an extracted parameter of an image showing a high degree of sharpness.
Dependencies are inferred from the claim text.