Abstract: The image processing apparatus includes: a color conversion unit color-converting an image signal of a first color space into that of a second color space by using a color conversion characteristic defining a correspondence relationship between the image signals of the first and second color spaces; an adjustment unit adjusting the image signal of the second color space, in accordance with a change in the color conversion characteristic; a correction unit correcting a conversion factor group for adjustment used when the image signal of the second color space is adjusted; and a judgment unit judging whether the conversion factor group needs to be corrected, on the basis of a color measurement result of a second color sample group including color samples the number of which is smaller than that of color samples in a first color sample group on which color measurement is performed to create the conversion factor group.

Abstract: A color processing device includes a converter that converts a combination of values of N?1 colors obtained by eliminating a specific color included in N colors from an input color signal expressing a color by a combination of values of the N colors, into a corresponding combination of values of M?1 colors, N being 4 or larger, M being larger than N; and an output unit that, if a total value of the values of the M?1 colors after the conversion by the converter and a value of the specific color included in the input color signal exceeds a predetermined limit value, changes a value of at least one of M colors obtained by adding the specific color to the M?1 colors such that the total value becomes the limit value or smaller, and outputs values of the M colors as an output color signal.

Abstract: An image processing apparatus includes a setting unit, a generating unit, and a converting unit. The setting unit sets a gloss level of each of plural areas into which an image is divided. The image is formed by forming plural toner images having different colors using plural first toners and at least one second toner having at least one same color as the first toners and by fixing the plural toner images onto a recording medium so as to be superimposed on one another. The generating unit generates multi-level image data for each of the first toners and the at least one second toner in accordance with the gloss levels set by the setting unit. The converting unit converts multi-level image data of toners having the same color into binary image data. The converting unit also converts multi-level image data of toners having different colors into binary image data.

Abstract: An image processing apparatus includes a setting unit and a correcting unit. The setting unit sets a gloss level of an image to be formed by forming plural toner images using a transparent toner and plural color toners having different colors and by fixing the plural toner images onto a recording medium in such a manner that the plural toner images are placed on top of one another on the recording medium. The correcting unit corrects image data defining density values per pixel of the toner images formed using the plural color toners of the respective colors so that a total density value that is a sum of a density value per pixel of the toner image formed using the transparent toner and density values per pixel of the toner images formed using the plural color toners of the respective colors may not exceed a predetermined threshold.

Abstract: An image processing device includes a first output unit that performs predetermined image processing for image data, and outputs image data having m bits per pixel; a second output unit that performs pseudo gradation-increase processing by a dither method or a multilevel error diffusion method for the output image data, and outputs image data having n bits per pixel, where n<m; and a compression unit that compresses the output image data. When a dither matrix for the dither method or a filter for the multilevel error diffusion method used by the second output unit for the pseudo gradation-increase processing is divided into plural pixel groups each including plural adjacent pixels and when each pixel group serves as a unit, processing parameters respectively set for pixels in the same pixel group are similar as compared with processing parameters respectively set for pixels in different pixel groups.

Abstract: The color signal converting apparatus is provided with: a color signal receiving unit that receives input of first color signals; and a converting unit that performs a conversion of the first color signals received by the color signal receiving unit, into second color signals. The converting unit performs the conversion to make a total sum of color component values of each of the second color signals equal to or smaller than an upper limit value set for each of the second color signals.

Abstract: An image processing method is provided. The image processing method includes: generating profiles for color reproduction, classified for each of recording papers, from at least one of particular characteristic data of the each recording paper, which is generated on the basis of factors that affect color reproduction and particular generation information of the each recording paper, which is obtained by printing plural patch patterns at the recording paper and performing colorimetry of the printed patch patterns; and when implementing basic extraction control for extracting a profile that matches in at least one of the characteristic data and the generation information, if no profile that matches in at least one of the characteristic data and the generation information is extracted, extracting a profile that approximates in accordance with a pre-specified order of priority determination procedure to be a candidate.

Abstract: An image processing apparatus including: a first storage portion that stores patterns used for matching with edge portions of a linear image included in an input image, the patterns having respective different sizes, and each of the patterns being composed of pixels and including a target pixel corresponding to a pixel to be deleted in the linear image; a selection portion that selects a pattern having a size according to a line width of a line thinning process to the linear image, from the stored patterns; a pattern detection portion that matches the selected pattern with the linear image while shifting the selected pattern, and detects whether the selected pattern is matched with the linear image; and a deletion portion that, when the matching result is detected, deletes the pixel in the linear image corresponding to the target pixel in the selected pattern.

Abstract: An image processor includes: a receiving unit that receives an input of image data in a first color space; a first color conversion unit that performs color conversion of the image data received by the receiving unit to image data formed of a first combination of color components in a second color space; a second color conversion unit that performs color conversion of the image data received by the receiving unit to image data formed of a second combination of color components in the second color space, the second combination being different from the first combination; and an image generating unit that generates an image based on at least the image data generated by the first and second color conversion units. Each of the first and second combinations includes a smaller number of color components than the number of color materials to be used in formation of an image.

Abstract: The image processing apparatus includes: a color conversion unit color-converting an image signal of a first color space into that of a second color space with a color conversion characteristic defining a correspondence relationship between the image signals; an adjustment unit adjusting the image signal of the second color space with adjustment conversion factor groups that is for adjusting it in accordance with a change in the color conversion characteristic, and is set for respective types of sheets on which an image is to be printed according to the image signal of the second color space; a calculation unit calculating the adjustment conversion factor groups; a memory storing an associating factor group associating, with each other, the adjustment conversion factor groups; and an update unit updating the adjustment conversion factor groups according to the calculated adjustment conversion factor group of one sheet and the stored associating factor group.

Abstract: The image processing apparatus includes: a color conversion unit color-converting an image signal of a first color space into that of a second color space by using a color conversion characteristic defining a correspondence relationship between the image signals of the first and second color spaces; an adjustment unit adjusting the image signal of the second color space, in accordance with a change in the color conversion characteristic; a correction unit correcting a conversion factor group for adjustment used when the image signal of the second color space is adjusted; and a judgment unit judging whether the conversion factor group needs to be corrected, on the basis of a color measurement result of a second color sample group including color samples the number of which is smaller than that of color samples in a first color sample group on which color measurement is performed to create the conversion factor group.

Abstract: An image processing apparatus and an image processing method which perform image processing for drawing information which includes image information and color correction information are provided. The image processing apparatus according to the invention includes a first conversion component which converts a predetermined first color component value in a color space applied by the drawing information into a second color component value in a different color space while being corrected by the color correction information, a decision component which determines whether the second color component value is a value falling within a predetermined range or not, and a second conversion component which performs conversion of color components used in image drawing based on the drawing information into a single color corresponding to the range.

Abstract: The color signal converting apparatus is provided with: a color signal receiving unit that receives input of first color signals; and a converting unit that performs a conversion of the first color signals received by the color signal receiving unit, into second color signals. The converting unit performs the conversion to make a total sum of color component values of each of the second color signals equal to or smaller than an upper limit value set for each of the second color signals.

Abstract: An image processing method is provided. The image processing method includes: generating profiles for color reproduction, classified for each of recording papers, from at least one of particular characteristic data of the each recording paper, which is generated on the basis of factors that affect color reproduction and particular generation information of the each recording paper, which is obtained by printing plural patch patterns at the recording paper and performing colorimetry of the printed patch patterns; and when implementing basic extraction control for extracting a profile that matches in at least one of the characteristic data and the generation information, if no profile that matches in at least one of the characteristic data and the generation information is extracted, extracting a profile that approximates in accordance with a pre-specified order of priority determination procedure to be a candidate.

Abstract: An image-formation control apparatus is connected to an image forming apparatus for forming an image on a medium with a plurality of color materials. The image-formation control apparatus includes a receiving unit and a first calibration unit. The receiving unit receives an image formation command, which is to be executed by the image forming apparatus. The first calibration unit generates a first formation command to form a first number of color patches for adjusting output characteristics of the color materials in the image forming apparatus and outputs the generated first formation command to the image forming apparatus. The first calibration unit calculates an estimated consumption amount of each color material used in the image forming apparatus on a basis of the received image formation command and determines colors of the color patches formed on a patch sheet on a basis of the estimated consumption amount.

Abstract: According to an aspect of the invention, an image processing apparatus includes an adjustment section, an edge enhancement section, a reception section and a changing section. The adjustment section performs adjustment of a black amount for an input image signal including a plurality of color signals. The adjustment section outputs an output image signal including a plurality of color signals that contain black whose amount is adjusted. The edge enhancement section performs an edge enhancement process for the output image signal output from the adjustment section. The reception section receives setting of an edge enhancement degree used in the edge enhancement section. The changing section changes setting of the adjustment of the black amount in the adjustment section, according to the setting of the edge enhancement degree received by the reception section.

Abstract: An image-formation control apparatus is connected to an image forming apparatus for forming an image on a medium with a plurality of color materials. The image-formation control apparatus includes a receiving unit and a first calibration unit. The receiving unit receives an image formation command, which is to be executed by the image forming apparatus. The first calibration unit generates a first formation command to form a first number of color patches for adjusting output characteristics of the color materials in the image forming apparatus and outputs the generated first formation command to the image forming apparatus. The first calibration unit calculates an estimated consumption amount of each color material used in the image forming apparatus on a basis of the received image formation command and determines colors of the color patches formed on a patch sheet on a basis of the estimated consumption amount.

Abstract: An image forming apparatus includes a patch data generator that generates image data of a color patch using a color value substantially equivalent to the color patch as a color sample, and an image forming unit that forms a color patch on a recording medium based on the image data of the color patch generated by the patch data generator.

Abstract: An image forming apparatus includes an input unit that receives input of area designation information designating an image area to be subjected to color adjustment and adjustment amount information designating an adjustment amount of color adjustment, a color adjustment unit that performs color adjustment on rasterized image data in correspondence with the inputted area designation information and the adjustment amount information, and an image forming unit that forms an output image based on the image data subjected to the color adjustment by the color adjustment unit.

Abstract: An image processing apparatus has an operating section and a control section. The operating section operates a control section, and the operating section is operated by a user. The control section calculates estimated quantity of ink for each color used for printing an image expressed by image data and notifies a user of information that a total of the calculated estimated quantity of ink for each color exceeds predetermined quantity.