Abstract: The invention relates to a method of modifying a data set containing color component values, which method allows the component of a color in a color spectrum that is provided to be generally set to zero and thus not to use that color. For this purpose, it is provided to first select an image area of a printed product, i.e. a portion of the data set. Further, it is determined which color from the color spectrum shall not be used. The color value for the selected image area is determined. A tolerance range around the color value is fixed. In a further step, it is determined which combinations of color component values that are formed of the remaining colors of the color spectrum include color values that are within the tolerance range fixed around the color value of the selected area. Thereafter, one of the combinations of the color component values is selected.

Abstract: The invention relates to a method of modifying a data set containing color component values, which method allows the component of a color in a color spectrum that is provided to be generally set to zero and thus not to use that color. For this purpose, it is provided to first select an image area of a printed product, i.e. a portion of the data set. Further, it is determined which color from the color spectrum shall not be used. The color value for the selected image area is determined. A tolerance range around the color value is fixed. In a further step, it is determined which combinations of color component values that are formed of the remaining colors of the color spectrum include color values that are within the tolerance range fixed around the color value of the selected area. Thereafter, one of the combinations of the color component values is selected.

Abstract: In order to optimize the calibration tables of a printer, and to improve the calibration for combined printing with respect to one-dimensional calibration, a method for optimized printer calibration is proposed, comprising the following method steps: a) for each primary color, the maximal value is colorimetrically limited; b) each primary color is colorimetrically linearized; c) the maximal value of the combined printing of all primary colors is determined colorimetrically; d) a definition of the resulting color range is made; e) the outer layer of the color range is determined at equal spaces; and f) the intermediate values of the resulting calibration tables are interpolated.

Abstract: In order to improve a method for producing test prints such that the same results in reproducible test prints in a narrow deviation spectrum at high accuracy with the highest possible print flexibility, the invention provides a method for the production of test prints (proofs) of print data intended for printing on an industrial printing machine on a digital printer, wherein the print data is converted from a color space for any given industrial printing machine into digital proof print data in a color space for any given digital printer, as a function of a given state based on conversion tables, wherein the given state comprises parameters, such as paper type, ink, printing mode, and wherein conversion data is determined and considered during the printing process for a calibration file for the printer based on data compatible with the color space, by means of printing a test image, measuring the same, and comparing the same to a typical printer target image, wherein parameters dependent on a measuring device

Abstract: A method for transformation of color values of an initial color space reproducible by a first technical device to color values of a target color space reproducible by a second technical device is provided. The method includes movement from one color space by conversion of color values to different color values in the basic color space and scaling by conversion to different color values in the basic color space. The method also includes conversion of color values of the initial color space to color values which are closest to the color value in the edge area of the target color space. The method also includes movement of color values located in an edge area of the target color space to the interior of the target color space by conversion as a function of the number of identical edge color values to color values on the same color variation plane.

Abstract: To improve a method for making an overprint prediction to that extent, that the method allows more reliable overprint predictions with a reduced effort, the invention proposes a method for making the overprint prediction for a color combination, in which method a printing substrate and at least two printing colors and one gradation of hue values per printing color including the full tone as well as color combinations are predefined as data of the hue value of the n printing colors, wherein first of all individual color predictions comprising three transmittance components and the associated transmittance spectra for the respective hue value are determined for each of the n printing colors, wherein for an intended color combination up to (3 to the power of n) combinations of the transmittance components and the associated combined transmittance spectra are determined, and an overall reflectance spectrum of an overprint is predicted on the basis of the determined transmittance components with their transmittanc

Abstract: In order to optimize the calibration tables of a printer, and to improve the calibration for combined printing with respect to one-dimensional calibration, a method for optimized printer calibration is proposed, comprising the following method steps: a) for each primary color, the maximal value is colorimetrically limited; b) each primary color is colorimetrically linearized; c) the maximal value of the combined printing of all primary colors is determined colorimetrically; d) a definition of the resulting color range is made; e) the outer layer of the color range is determined at equal spaces; and f) the intermediate values of the resulting calibration tables are interpolated.

Abstract: To improve a method for making an overprint prediction to that extent, that the method allows more reliable overprint predictions with a reduced effort, the invention proposes a method for making the overprint prediction for a color combination, in which method a printing substrate and at least two printing colors and one gradation of hue values per printing color including the full tone as well as color combinations are predefined as data of the hue value of the n printing colors, wherein first of all individual color predictions comprising three transmittance components and the associated transmittance spectra for the respective hue value are determined for each of the n printing colors, wherein for an intended color combination up to (3 to the power of n) combinations of the transmittance components and the associated combined transmittance spectra are determined, and an overall reflectance spectrum of an overprint is predicted on the basis of the determined transmittance components with their transmittanc

Abstract: In order to improve a method for producing test prints such that the same results in reproducible test prints in a narrow deviation spectrum at high accuracy with the highest possible print flexibility, the invention provides a method for the production of test prints (proofs) of print data intended for printing on an industrial printing machine on a digital printer, wherein the print data is converted from a color space for any given industrial printing machine into digital proof print data in a color space for any given digital printer, as a function of a given state based on conversion tables, wherein the given state comprises parameters, such as paper type, ink, printing mode, and wherein conversion data is determined and considered during the printing process for a calibration file for the printer based on data compatible with the color space, by means of printing a test image, measuring the same, and comparing the same to a typical printer target image, wherein parameters dependent on a measuring device

Abstract: In order to provide a method for transformation of an initial colour space to a target colour space in which, in particular, detail losses and contrast losses are minimized, the present invention proposes a method for transformation of colour values from a an initial colour space to a target colour space, both of which are related to a defined basic colour space, in which case at least one plane in the colour spaces define a profile of the brightness from bright to dark, and planes running transversely thereto define colour variations, characterized by the following steps a) movement from the initial colour space and/or the target colour space by conversion of all the colour values of one of the two colour spaces to different colour values in the basic colour space, so that the initial and the target colour space are coincident with respect to at least one colour value located at the edge of a colour space, b) scaling of the initial colour space and/or target colour space by conversion of all the colour value

Abstract: A protection device for a vehicle interior has a flexible sheet-like structure which is arranged movably between a compactly put-away rest position and an extended functional position and which is connected on the end side transversely to the direction of extension over its width to a dimensionally stable profiled part. The sheet-like structure has a sheet-like section which is extended over its width and is connected extensively and cohesively to a sheet-like section of an outer casing of the profiled part.

Abstract: A protection device for a vehicle interior has a flexible sheet-like structure which is arranged movably between a compactly put-away rest position and an extended functional position and which is connected on the end side transversely to the direction of extension over its width to a dimensionally stable profiled part. The sheet-like structure has a sheet-like section which is extended over its width and is connected extensively and cohesively to a sheet-like section of an outer casing of the profiled part.