Abstract: An image processing apparatus comprises: an obtaining unit configured to obtain an image and distance information concerning a distance from an in-focus plane, which corresponds to each pixel included in the image; a setting unit configured to set an image processing condition according to the distance information based on an output characteristic of an output apparatus concerning a sharpness; and a processing unit configured to perform image processing for the image using the distance information obtained by the obtaining unit and the image processing condition set by the setting unit, wherein the processing unit changes, in accordance with the distance information, a band of a spatial frequency of the image to which the image processing is applied.

Abstract: A minimum luminance value of a display luminance information is larger than a minimum luminance value of a print luminance information. And in a conversion, a luminance value of a dark region of input image data is converted to a luminance value of a dark region of output image data such that a contrast of a dark region that includes the minimum luminance value of the print luminance information becomes closer to a contrast of a dark region that includes the minimum luminance value of the display luminance information.

Abstract: An image processing apparatus comprises: an obtaining unit that obtains a luminance of an input image having a color reproduction range wider than that of a printing apparatus; a conversion unit that performs, for the input image, conversion processing of obtaining a value included in the color reproduction range of the printing apparatus and obtaining the luminance of the image after the conversion; and a correction unit that corrects the luminance of the input image, wherein the correction unit performs correction of the luminance of the input image based on a conversion characteristic between the obtained luminance and the obtained luminance such that an intensity of the correction becomes higher for a color that is not included in the color reproduction range of the printing apparatus than for a color included in the color reproduction range of the printing apparatus.

Abstract: An image processing apparatus sets, for at least one portion of a first image in which a brightness range is a first range, relationship information which associates an input brightness value with an output brightness value, changes, based on the relationship information, brightness values of pixels in the portion, and outputs a second image which has a second range of brightness. The relationship information is generated so as to associate, with each of the brightness values of the pixels in the portion, an output brightness value which does not exceed a value higher than the brightness value by a predetermined value, and to associate, with a brightness value which is not less than a feature amount among the brightness values of the pixels in the portion, a predetermined output brightness value falling within a predetermined range.

Abstract: An image processing apparatus divides a first image into a plurality of areas based on obtained image data of the first image and sets relationship information between input brightness values with output brightness values for each of the plurality of areas, and converts, based on the relationship information, a brightness value of pixels included in the first image into a brightness value of pixels of a second image whose brightness range is narrower than that of the first image. In the conversion, the apparatus sets, for at least some pixels of the first image, a size of a window for specifying pixels within a predetermined area including the pixels based on environment information in which the second image is observed, and calculates a brightness value in the second image for each of the at least some pixels based on the window.

Abstract: Conventionally, three-dimensional appearance of an output image in an output apparatus such as a printer or display differs from that of an input image in that output characteristics of the output apparatus that influences sharpness of an image is not considered. According to an embodiment of this present invention, an image processing apparatus sets an image processing condition for executing image processing, that is set based on output characteristics of an output apparatus and image characteristics related information obtained when image data is obtained, and performs image processing for the image data using information equivalent to a distance from a focal plane at the time of image-capturing an object and the set image processing condition.

Abstract: An image processing apparatus, comprises: a detection unit configured to detect a predetermined region of an image from image data; and a correction unit configured to correct a value of luminance in the predetermined region detected by the detection unit. The correction unit corrects a high-frequency value out of a low-frequency value and the high-frequency value obtained from a luminance value of a pixel having a value of luminance higher than a predetermined threshold in the predetermined region so that a high-frequency contrast weakens.

Abstract: An image processing apparatus comprises: an obtaining unit configured to obtain an image and distance information concerning a distance from an in-focus plane, which corresponds to each pixel included in the image; a setting unit configured to set an image processing condition according to the distance information based on an output characteristic of an output apparatus concerning a sharpness; and a processing unit configured to perform image processing for the image using the distance information obtained by the obtaining unit and the image processing condition set by the setting unit, wherein the processing unit changes, in accordance with the distance information, a band of a spatial frequency of the image to which the image processing is applied.

Abstract: An image processing apparatus includes an input unit for inputting an image, a division unit for dividing the inputted image into a plurality of divided regions, an obtaining unit for obtaining a feature amount of the image for each of the divided regions, a generation unit for generating a compression curve for each divided region, and a compression unit for generating an output image by performing compression of a dynamic range using the compression curve for each of the divided regions. The generation unit generates the compression curve for each of the divided regions so that a slope of the compression curve for each of the divided regions matches in a range from a luminance of a dark region of the image to a luminance of a predetermined brightness.

Abstract: An image processing apparatus comprises: an obtaining unit configured to obtain an image and distance information concerning a distance from an in-focus plane, which corresponds to each pixel included in the image; a setting unit configured to set an image processing condition according to the distance information based on an output characteristic of an output apparatus concerning a sharpness; and a processing unit configured to perform image processing for the image using the distance information obtained by the obtaining unit and the image processing condition set by the setting unit, wherein the processing unit changes, in accordance with the distance information, a band of a spatial frequency of the image to which the image processing is applied.

Abstract: An image processing apparatus comprises: an obtaining unit configured to obtain a dynamic range of a captured image on captured image data; a determination unit configured to determine a dynamic range of a printed product when viewed obtained by printing the captured image based on the captured image data, based on printing information on viewing of the printed product; and a conversion unit configured to perform conversion processing for luminance of the captured image data to the dynamic range determined by the determination unit from the dynamic range obtained by the obtaining unit.

Abstract: An image processing apparatus, comprises: a detection unit configured to detect a predetermined region of an image from image data; and a correction unit configured to correct a value of luminance in the predetermined region detected by the detection unit. The correction unit corrects a high-frequency value out of a low-frequency value and the high-frequency value obtained from a luminance value of a pixel having a value of luminance higher than a predetermined threshold in the predetermined region so that a high-frequency contrast weakens.

Abstract: Conventionally, three-dimensional appearance of an output image in an output apparatus such as a printer or display differs from that of an input image in that output characteristics of the output apparatus that influences sharpness of an image is not considered. According to an embodiment of this present invention, an image processing apparatus sets an image processing condition for executing image processing, that is set based on output characteristics of an output apparatus and image characteristics related information obtained when image data is obtained, and performs image processing for the image data using information equivalent to a distance from a focal plane at the time of image-capturing an object and the set image processing condition.

Abstract: An image processing apparatus for converting a first image having a first range of a brightness into a second image having a second range of the brightness narrower than the first range obtains information of sizes of the first range and the second range, divides the first image based on the information such that the number of areas obtained by dividing the first image when a ratio of the second range to the first range is a first value becomes smaller than that when the ratio is smaller than the first value, sets, for each of the areas, relationship information that associates input brightness values in the first range with output brightness values in the second range, and converts brightness values of pixels included in the first image into brightness values of pixels of the second image based on the relationship information.

Abstract: An image processing apparatus comprises: an obtaining unit configured to obtain an image and distance information concerning a distance from an in-focus plane, which corresponds to each pixel included in the image; a setting unit configured to set an image processing condition according to the distance information based on an output characteristic of an output apparatus concerning a sharpness; and a processing unit configured to perform image processing for the image using the distance information obtained by the obtaining unit and the image processing condition set by the setting unit, wherein the processing unit changes, in accordance with the distance information, a band of a spatial frequency of the image to which the image processing is applied.

Abstract: An image processing apparatus sets, for at least one portion of a first image in which a brightness range is a first range, relationship information which associates an input brightness value with an output brightness value, changes, based on the relationship information, brightness values of pixels in the portion, and outputs a second image which has a second range of brightness. The relationship information is generated so as to associate, with each of the brightness values of the pixels in the portion, an output brightness value which does not exceed a value higher than the brightness value by a predetermined value, and to associate, with a brightness value which is not less than a feature amount among the brightness values of the pixels in the portion, a predetermined output brightness value falling within a predetermined range.

Abstract: An image processing apparatus is provided with an input unit for inputting an image; a division unit for dividing the inputted image into a plurality of divided regions; an obtaining unit for obtaining a feature amount of the image for each of the divided regions; a generation unit for generating a compression curve for each divided region; and a compression unit for generating an output image by performing compression of a dynamic range using the compression curve for each of the divided regions, wherein the generation unit generates the compression curve for each of the divided regions so that a slope of the compression curve for each of the divided regions matches in a range from a luminance of a dark region of the image to a luminance of a predetermined brightness.

Abstract: An image processing apparatus comprises: an obtaining unit configured to obtain a dynamic range of a captured image on captured image data; a determination unit configured to determine a dynamic range of a printed product when viewed obtained by printing the captured image based on the captured image data, based on printing information on viewing of the printed product; and a conversion unit configured to perform conversion processing for luminance of the captured image data to the dynamic range determined by the determination unit from the dynamic range obtained by the obtaining unit.

Abstract: An image processing apparatus for converting a first image having a first range of a brightness into a second image having a second range of the brightness narrower than the first range obtains information of sizes of the first range and the second range, divides the first image based on the information such that the number of areas obtained by dividing the first image when a ratio of the second range to the first range is a first value becomes smaller than that when the ratio is smaller than the first value, sets, for each of the areas, relationship information that associates input brightness values in the first range with output brightness values in the second range, and converts brightness values of pixels included in the first image into brightness values of pixels of the second image based on the relationship information.

Abstract: An image processing apparatus comprises: an obtaining unit that obtains a luminance of an input image having a color reproduction range wider than that of a printing apparatus; a conversion unit that performs, for the input image, conversion processing of obtaining a value included in the color reproduction range of the printing apparatus and obtaining the luminance of the image after the conversion; and a correction unit that corrects the luminance of the input image, wherein the correction unit performs correction of the luminance of the input image based on a conversion characteristic between the obtained luminance and the obtained luminance such that an intensity of the correction becomes higher for a color that is not included in the color reproduction range of the printing apparatus than for a color included in the color reproduction range of the printing apparatus.