Image processing apparatus, image processing method, and image processing program
AssigneeSeiko Epson Corporation
InventorsTakashi Kurumisawa, Masanori Ishida
Life of this patent
Estimating the term…
Abstract
An image processing apparatus includes the following elements. An image data obtaining unit obtains image data. A sampling unit samples the image data. A statistic value determining unit determines a statistic value based on statistic information in a histogram with respect to a grayscale value of image data that is obtained by performing rough quantization and linear interpolation on the sampled image data. A correction-amount determining unit determines a correction amount to be used for image processing based on the statistic value. An image processing unit performs the image processing according to the correction amount.
Claims6
An image processing apparatus comprising:
- an image data obtaining unit that obtains image data;
- a sampling unit that samples the image data;
- a statistic value determining unit that determines a statistic value based on statistic information in a histogram with respect to a grayscale value of image data that is obtained by performing rough quantization and linear interpolation on the sampled image data;
- a correction-amount determining unit that determines a correction amount to be used for image processing based on the statistic value;
- and
- an image processing unit that performs the image processing according to the correction amount.
An image processing method comprising:
- obtaining image data;
- sampling the image data;
- determining a statistic value based on statistic information in a histogram with respect to a grayscale value of image data that is obtained by performing rough quantization and linear interpolation on the sampled image data;
- determining a correction amount to be used for image processing based on the statistic value;
- and
- performing the image processing according to the correction amount.
An image processing program executed by an image processing apparatus including a control circuit to cause the image processing apparatus to function as:
- an image data obtaining unit that obtains image data;
- a sampling unit that samples the image data;
- a statistic value determining unit that determines a statistic value based on statistic information in a histogram with respect to a grayscale value of image data that is obtained by performing rough quantization and linear interpolation on the sampled image data;
- a correction-amount determining unit that determines a correction amount to be used for image processing based on the statistic value;
- and
- an image processing unit that performs the image processing according to the correction amount.
Dependencies are inferred from the claim text.