Abstract: A color conversion method that converts a spot color into a combination of a plurality of output-color values corresponding to output colors generated by an image forming apparatus, the method including: acquiring a name of the spot color; a category of the spot color, the category being one of a plurality of categories into which spot colors are classified; and an input-color value of the spot color; for each spot color; selecting a color conversion table corresponding to the acquired category out of a plurality of color conversion tables stored beforehand in a storage unit for the respective categories, each of the color conversion tables indicating a correspondence relationship between the input-color value and the combination of the output-color values; and converting the acquired input-color value into the combination of the output-color values based upon the selected color conversion table.

Abstract: Disclosed is a print preview apparatus including: an output control section which outputs an adjustment chart with a plurality of print color sample images formed based on a color data value of a color space depending on a print device adjusted to a color gamut reproducible by the print apparatus; a conversion section which converts each color data value of the color space depending on the print device to a color data value of a color space depending on a display device; a display section which displays a plurality of display color sample images corresponding to each of the plurality of print color sample images; and an adjustment section which presents the plurality of display color sample images displayed on the display section and which adjusts a color data value indicating a color of the presented display color sample image based on color adjustment information.

Abstract: Disclosed is a recording medium recording a program for a computer to perform the following functions of: creating first corresponding information to show color value corresponding to a combination of values of black and three basic colors when a plurality of color patches are each output; creating second corresponding information to correspond the combination of values of black and three basic colors to a virtual basic color axis coordinate; creating third corresponding information to show color value corresponding to the virtual basic color axis coordinate; and obtaining virtual basic color axis coordinate corresponding to the color value, obtaining a combination of values of black and three basic colors corresponding to the obtained virtual basic color axis coordinate, and storing the obtained combination of values of black and three basic colors as a combination of values of black and three basic colors corresponding to the color value.

Abstract: There is described an image outputting system including an image outputting apparatus and a controlling apparatus to control the image outputting apparatus to form the image on a recording medium. The controlling apparatus includes: an extracting section to extract an edge, defined as a contour of an intermediate tone object, based on the image data; a correcting section to correct a density value located in a vicinity of the edge, to make the density value high and to generate corrected image data; and a halftone-dot image data generating section to convert the corrected image data to halftone-dot image-data, which represent a halftone-dot image constituted by halftone-dots, each of which is formed by a plurality of pixels based on the corrected image data. The controlling apparatus controls the image outputting apparatus so as to output the halftone-dot image formed on the recording medium, based on the halftone-dot image data.

Abstract: There is described an image outputting system for outputting an image formed on a recording medium, based on image data transmitted through a network. The system includes: an image outputting apparatus and a controlling apparatus that receives the image data to output processed-image data generated from the image data, and controls the image outputting apparatus so as to form the image on the recording medium, based on the processed-image data. The controlling apparatus includes: an extracting section to extract an edge, defined as a boundary at which a density value varies from an intermediate tone area to a high density area where the density value is higher than that of the intermediate tone area, based on whole density values; and an correcting section to correct a density value, residing within the intermediate tone area and located in a vicinity of the edge, based on a correction value determined in advance.

Abstract: There is described an image outputting system including an image outputting apparatus and a controlling apparatus to control the image outputting apparatus to form the image on a recording medium. The controlling apparatus includes: an extracting section to extract an edge, defined as a contour of an intermediate tone object, based on the image data; a correcting section to correct a density value located in a vicinity of the edge, to make the density value high and to generate corrected image data; and a halftone-dot image data generating section to convert the corrected image data to halftone-dot image-data, which represent a halftone-dot image constituted by halftone-dots, each of which is formed by a plurality of pixels based on the corrected image data. The controlling apparatus controls the image outputting apparatus so as to output the halftone-dot image formed on the recording medium, based on the halftone-dot image data.

Abstract: In transferring a supervisory right requirement signal in a submarine cable communication network system comprising a plurality of stations, a particular one of the stations being connected with other ones of the stations as opposite stations through submarine cables including repeaters, the particular station transmits a particular signal representative of the supervisory right requirement assigned thereto to the opposite stations through the submarine cables, respectively. Each of the opposite stations receives the particular signal as a received particular signal. Each of the opposite stations discriminates from the received particular signal that the particular signal is transmitted from the particular station. Then, each of the opposite stations returns the received particular signal to the particular station as a specific signal. The particular station receives the specific signal from each of the opposite stations as a received specific signal.