Abstract: A display device includes a first sub-pixel formed by a blue-type-hue colored area included in a visible light region whose hue changes in accordance with wavelength, a second sub-pixel formed by a red-type-hue colored area included in the visible light region, a third sub-pixel and a fourth sub-pixel formed by colored areas of two types of hues included in the visible light region, the two types of hues being selected from a hue range of from a blue hue to a yellow hue, and a plurality of pixels regularly disposed horizontally and vertically and each including the first to fourth sub-pixels. At least two of the four sub-pixels have different areas, and two of the four sub-pixels having smaller areas among the four sub-pixels are disposed so as not to be adjacent to each other.

Abstract: A display device includes a first sub-pixel formed by a blue-type-hue colored area included in a visible light region whose hue changes in accordance with wavelength, a second sub-pixel formed by a red-type-hue colored area included in the visible light region, a third sub-pixel and a fourth sub-pixel formed by colored areas of two types of hues included in the visible light region, the two types of hues being selected from a hue range of from a blue hue to a yellow hue, and a plurality of pixels regularly disposed horizontally and vertically and each including the first to fourth sub-pixels. At least two of the four sub-pixels have different areas, and two of the four sub-pixels having smaller areas among the four sub-pixels are disposed so as not to be adjacent to each other.

Abstract: A discharge defect detecting device including a sensor that reads image, which has been formed on a medium by moving nozzles relative to the medium in a relative movement direction and discharging a fluid, at a reading resolution lower than the resolution of an image data in the relative movement direction, based on the image data; a standard data forming unit that forms a standard data having the same resolution as the reading resolution in the relative movement direction, based on the image data; and a detecting unit that compares a plurality of the reading data pixels on the same row in the relative movement direction in the data read by the sensor with a plurality of standard data pixels each corresponding to the plurality of the reading data pixels in the standard data, to detect the discharge defects of the nozzles.

Abstract: A printing device comprising: a data acquiring unit configured to acquire image data; an image processing unit configured to generate display image data and printing image data based on the image data by with pixel value of a pixel at a first position in an image of the printing image data, performing an image process of modifying a pixel value of a first subject pixel of the printing image data at the first position or another position, the first position being determined according to a first parameter P1, with pixel value of a pixel at a second position in an image of the display image data, performing an image process of modifying a pixel value of a second subject pixel of the display image data at the second position or another position, the second position being determined according to a second parameter P2, and determining the second parameter P2 such that a ratio (P2/P1) of the second parameter P2 and the first parameter P1 is in a specified range that includes a ratio (Px2/Px1) of a display pixel coun

Abstract: A correction value setting method includes: generating, based on a first correction value that has been set in advance and is used in correcting a density of an image to be printed on a first medium, a second correction value that has a larger correction amount than the first correction value and a third correction value that has a smaller correction amount than the first correction value; printing respectively a first pattern to which the first correction value is applied, a second pattern to which the second correction value is applied, and a third pattern to which the third correction value is applied, on a second medium that differs in type from the first medium, by ejecting liquid from a head including a plurality of nozzles that eject liquid; and setting, based on the first pattern, the second pattern, and the third pattern that have been printed on the second medium, one of the first correction value, the second correction value, and the third correction value, as a correction value used in correcting

Abstract: A color conversion device that color-converts colors of input image data into colors used in a display unit for displaying images using at least white includes: a ratio calculating unit that calculates a lightness ratio and a saturation ratio between a color reproduction range in the standard color space and a color reproduction range in colors used by the display unit in L*a*b* space at least when a color outside of the color reproduction range in colors used by the display unit is calculated; and a color compressing unit that performs color compression on the image data based on the ratios calculated by the ratio calculating unit.

Abstract: An image processing device outputs four-color image data to a display section, the display section performing display using display pixels each composed of four sub-pixels, and having an arrangement of the display pixels in which a pixel arrangement in an even line of a scan lines and a pixel arrangement in an odd line of the scan lines are shifted a half pitch of the display pixels from each other, and the image processing device includes a color conversion section which obtains three-color image data and converts the three-color image data into first four-color image data while maintaining the number of display pixels in the three-color image data, a conversion section which generates second four-color image data by performing an interpolation process on the first four-color image data based on a relationship between a position of a sub-pixel in the first four-color image data and a position of a sub-pixel in the display section, and an output section which outputs the second four-color image data to the di

Abstract: An image processing method of performing a color balance correction on an image, includes: determining a first value representing color and saturation of a pixel in a skin color region of the image; generating correction amount based on the first value, a second value representing ideal color and saturation of skin, and an adjusting value for adjusting a degree of the color balance correction; performing the color balance correction on the image based on the correction amount; and outputting the corrected image. The correction amount is varied depending on an output apparatus that outputs the corrected image.

Abstract: A printing device comprising: a data acquiring unit configured to acquire image data; an image processing unit configured to generate display image data and printing image data based on the image data by with pixel value of a pixel at a first position in an image of the printing image data, performing an image process of modifying a pixel value of a first subject pixel of the printing image data at the first position or another position, the first position being determined according to a first parameter P1, with pixel value of a pixel at a second position in an image of the display image data, performing an image process of modifying a pixel value of a second subject pixel of the display image data at the second position or another position, the second position being determined according to a second parameter P2, and determining the second parameter P2 such that a ratio (P2/P1) of the second parameter P2 and the first parameter P1 is in a specified range that includes a ratio (Px2/Px1) of a display pixel coun

Abstract: An image display device displays an image by using a plurality of display pixels, each display pixel including four sub-pixels corresponding to different colors. The four sub-pixels forming each of the display pixels are located such that two sub-pixels having a smaller level of luminance are located at edges of the display pixel, each of the two sub-pixels being located at either edge of the display pixel, and such that two other sub-pixels are located at a central portion of the display pixel so that an absolute value of a difference between a luminance added value, which is a value obtained by adding luminance levels of one of the sub-pixels located at the edges of the display pixel and an adjacent pixel, and a luminance added value, which is a value obtained by adding luminance levels of the other sub-pixel located at the edge of the display pixel and an adjacent pixel, is reduced.

Abstract: A printing device comprising: a data acquiring unit configured to acquire image data; an image processing unit configured to generate display image data and printing image data based on the image data by with pixel value of a pixel at a first position in an image of the printing image data, performing an image process of modifying a pixel value of a first subject pixel of the printing image data at the first position or another position, the first position being determined according to a first parameter P1, with pixel value of a pixel at a second position in an image of the display image data, performing an image process of modifying a pixel value of a second subject pixel of the display image data at the second position or another position, the second position being determined according to a second parameter P2, and determining the second parameter P2 such that a ratio (P2/P1) of the second parameter P2 and the first parameter P1 is in a specified range that includes a ratio (Px2/Px1) of a display pixel coun

Abstract: A discharge defect detecting device including a sensor that reads image, which has been formed on a medium by moving nozzles relative to the medium in a relative movement direction and discharging a fluid, at a reading resolution lower than the resolution of an image data in the relative movement direction, based on the image data; a standard data forming unit that forms a standard data having the same resolution as the reading resolution in the relative movement direction, based on the image data; and a detecting unit that compares a plurality of the reading data pixels on the same row in the relative movement direction in the data read by the sensor with a plurality of standard data pixels each corresponding to the plurality of the reading data pixels in the standard data, to detect the discharge defects of the nozzles.

Abstract: A discharge defect detecting device including a sensor that reads an image, which has been formed on a medium by relatively moving nozzles in a movement direction relative to the medium based on the image data and discharging a fluid, at a reading resolution lower than the resolution of image data in the relative movement direction; standard data writing unit that writes standard data having the same resolution as the reading resolution in the relative movement direction, based on the image data; and a detecting unit that compares the data read by the sensor with the standard data, to detect the discharge defects of the nozzles.

Abstract: A method for detecting defective liquid ejection includes: reading an image with a sensor, the image being formed on a medium on the basis of image data by ejecting liquid from a nozzle while relatively moving the nozzle in a direction of relative movement with respect to the medium; specifying a maximum pixel among pixels of read data continuously arrayed in rows in a direction intersecting the direction of the relative movement in the data read with the sensor, the maximum pixel having the maximum pixel value among pixels of the read data; selecting a selected pixel in the data read with the sensor, the selected pixel being included in a line constituted by a plurality of pixels including the maximum pixel arrayed in line in the direction of the relative movement; and detecting defective liquid ejection in the nozzle by comparing the selected pixel with the pixel of the image data corresponding to the selected pixel in the image data.

Abstract: A method for detecting a defective liquid ejection that includes a) reading, by means of a sensor, an image which is formed on a medium by nozzles ejecting a fluid onto the medium in accordance with image data while being moved relative to the medium in a relative movement direction, b) obtaining differences between pixel values of read data pixels continuously arranged in a row in a direction intersecting with the relative movement direction in data read by the sensor and pixel values of image data pixels corresponding to the read data pixels, and c) detecting a defective liquid ejection of the nozzle by comparing a maximum difference value at a point where the differences show a maximum value with a non-maximum difference value at a time when the differences do not show a maximum value.

Abstract: An image processing device connected to a display device and a printing device includes an image data acquiring module that acquires image data, a setting module that sets a print image quality adjustment condition, a print image data generating module that performs an image quality adjustment process on the acquired image data, and generates print image data, and a display image data generating module that generates display image data. The display image data generating module, when requested to display an image subjected to an image quality adjustment process, performs an image quality adjustment process on the acquired image data, and generates adjusted display image data, and when requested to display an image not subjected to an image quality adjustment process, generates unadjusted display image data, without image quality adjustment. A display control module displays an image subjected to the image quality adjustment process using the adjusted display image data.

Abstract: A printing control device includes a texture control unit that acquires texture control data, which is used for controlling the texture of a printing surface of a printing material printed by a printing apparatus, based on texture information data that represents the texture of the printing surface of the printing material.

Abstract: A tone-conversion-characteristic determining apparatus determines tone-conversion characteristics for use in converting tone characteristics of original data so that targeted tone characteristics are obtained when display is performed by a display device. The apparatus includes a tristimulus value determining unit that, on the basis of tristimulus values corresponding to a tone value of each of a plurality of colors capable of being displayed by the display device, determines a tristimulus value which is greater than the other tristimulus values, and a tone-conversion-characteristic determining unit that, on the basis of the tristimulus value determined by the tristimulus value determining unit, determines the tone-conversion characteristics so that the targeted tone characteristics are obtained.

Abstract: There is provided a texture information data acquiring device that receives print data, which is used at the time of performing printing by using a printing apparatus and represents the amount of a print recording material used at the time of printing, as input, acquires texture information data that represents the texture of a printing surface of a printing material from the print data, and outputs the texture information data.

Abstract: A correction value setting method includes: generating, based on a first correction value that has been set in advance and is used in correcting a density of an image to be printed on a first medium, a second correction value that has a larger correction amount than the first correction value and a third correction value that has a smaller correction amount than the first correction value; printing respectively a first pattern to which the first correction value is applied, a second pattern to which the second correction value is applied, and a third pattern to which the third correction value is applied, on a second medium that differs in type from the first medium, by ejecting liquid from a head including a plurality of nozzles that eject liquid; and setting, based on the first pattern, the second pattern, and the third pattern that have been printed on the second medium, one of the first correction value, the second correction value, and the third correction value, as a correction value used in correcting