• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Die Erfindung betrifft ein Verfahren und eine Einrichtung zur farbidentischen Simulierung eines Mehrfarbendruckes auf einem Farbmonitor. Vor der Simulierung werden auf dem Farbmonitor Farben erzeugt und durch einen meßtechnischen oder visuellen Vergleich an die Eckfarben einer gedruckten Farbtafel oder dergleichen angepaßt. Die für die farblich übereinstimmende Erzeugung der Eckfarben auf dem Farbmonitor erforderlichen Farbwerte werden ausgemessen und den Farbauszugswerten der Eckfarben Zugeordnet. Die für die Erzeugung von Zwischenfarben erforderlichen Farbwerte werden unter Berücksichtigung der Druckart des Mehrfarbendrucks berechnet und den entsprechenden Farbauszugswertes der Zwischenfarben zugeordnet. Während der Simulierung werden die Farbauszugswerte des Mehrfarbendrucks ausgegeben, nach einer Gradationskurve geändert und entsprechend der zuvor ermittelten Zuordnungen in die Farbwerte zur Ansteuerung des Farbmonitors umgewandelt.
    公开号:SU1634146A3
    申请号:SU843826849
    申请日:1984-12-21
    公开日:1991-03-07
    发明作者:Юнг Эггерт；Клопш Зигфрид
    申请人:Др.-Инж.Рудольф Хелль Гмбх (Фирма)；
    IPC主号:
    专利说明:

    After measurement according to the second step of calculating the triplet of color values
    V in
    P
    for intermediate
    colors depending on the type of printing to be modeled on a color monitor 3, with automatic three-color printing by parallel printing and partially superimposed printing of raster dots of printed colors yellow, magenta and cyan, eight angular colors of the printed color space occur, which are defined by standard color values x , y, g. By parallel printing of raster dots of printed colors, primary colors of yellow
    by partially overlaying the raster dots of two printed colors — secondary colors, red (xT,., yh, zr),
     green (u
    zL) and blue
    (xxx ze ze) by overlay printing raster dots of all three printed colors — black (, y5, z) and for the case when no raster dots are printed — white (x, yw, zw).
    Further, by adding the standard color values of the angular colors, the standard color values of x, y, z of intermediate colors are obtained, and the standard values of the angular colors are effective in accordance with probable or statistical com- pices Y of the angular colors.
    The faithful components of the surface-, NTH of eight corner colors are dependent on the corresponding values of the raster points or the values of pok.
    hp with
    z.
    4 y
    g
    Do
    z
    Mr. J
    digging surfaces, i.e. are dependent on the color separation values Y, M, C of the resulting color:
    111634146
    yw — O — C) (1-M) (1-Y) (white);
    Y) Y (1-M) (1-C) ym M (1-Y) (1-C) yc C (1-Y) (1-M) YY MY (IC) yj - CY (1-M) HM CM (1-Y) Y5 YCM
    Using equations (6) and (7), standard color values of x, y, z printed intermediate colors can be calculated from the color separation values Y, M, C of printed intermediate colors and measured standard color values of printed corner colors.
    The standard x, y, ZM color values of the monitor's intermediate colors can also be determined in terms of the color values g, g, b, or through the known standard color values of single phosphors using equation (5).
    Thus, the color values g, g, b needed to match the colors between the printed intermediate colors and the intermediate colors of the monitor (hp xm; Ud Um jz ,.) can be calculated by equation 5) in block 25 and overwritten into block 24 ti.
    In case there are no standard color values of printed corner colors, they can be calculated by equation (5) of known standard color values of single phosphors and color values of Y, M, C for monitor angular colors. The calculated standard color values of printed colors can be defined by equations (6) and (7) the standard color values of printed intermediate colors
    After filling the memory block 24, the record is re-checked: with the color sensor 18, the three color separation values Y, M, C of the intermediate colors of the printed color space are entered into the converter 20, in the interpolation block 23 using the reference values from the memory block 24, the three are calculated color tone g, g, b, and convert to the video signal the values of Gu, gy, bv.
    12
    (yellow);
    (purple);
    (cyanic);
    (red); (7)
    (green);
    (blue);
    (3 colors black).,
    5 To simplify retesting the color separation triples Y, M, C for various characteristic intermediate colors of the printed color space, for example,
    ® is stored in the sensor 18 with the ability to call.
    If, during the control of intermediate colors, it becomes apparent that one of the intermediate colors needs to be changed, a partial correction of the record in block 24 is carried out using the block 25 of calculations. To do this, change the top three color values of the maximum adjustable intermediate color to
    0 of the desired size and then re-adjust all triples of color values within the spatial correction area to the most corrected intermediate color so that
    5, a gradual correction process is achieved between the changed triples of color values of the corresponding intermediate color and triples of color values at the edge of the correction area.
    The device of FIG. 3 further comprises a color measurement unit 38, a predetermined value memory unit 39, and an adjustment unit 40
    5 Block 38 is adjusted on the screen of the color monitor 3 so that it collects eight monitor colors presented on the screen during the installation process alternately in the form of color fields, and
    0 identifies their trio of standard color values Zcm,, as triple the actual size of the colors of the monitor. Three standard color values of 1c, mind, 1 gm of monitor colors are successively transmitted via bus 41 to control unit 40 and stored there.
    As a triple of a given value for automatic alignment, there is a triple of standard color values xp, Ur, z of printed angle colors, measured, for example, from a color table, or values derived from them. The triple set point value of eight printed angle colors at the input 42 of the data is written to the memory unit 39 and, if necessary, is called from the control unit 40 via the data bus 43 using the read signal on the communication line 44.
    The control unit 40 produces, depending on and on the comparison of the target and actual values, three variable values of the color signal for the colors yellow, magenta, cyan, as well as a constant value of the color signal for the color black. The values of the color signals for the colors yellow, magenta, cyan are determined which single luminophores of the color monitor 3 need to be changed in luminance, as well as the size and direction of luminance change. The colors of the ps 4 data are supplied to the sensor 18, which instead of the color controller 30 contains four memory registers 46, to which the color signal values are received from the control unit 40 on the input 47 of the data input by the clock signal 48. The findings 49 of the data of the storage registers 46 are connected via the data buses 50 to the switch block 31 with blocks 19-1 to 19-4 gradations and thereby with the Ju color monitor
    The color alignment of the monitor and the printed angular color is carried out cyclically, with one button spanning the color measurement, comparing the target and actual values and changing the color signal values based on the comparison, the next cycle starts again with a color change. The cycles continue until a triple of a given value and a triple of an actual value for the color on the monitor or a permissible slight deviation. Then, the adjustment unit 40 gives the measurement command via the communication line 51 to the measurement unit 26, which then measures the three color values g, g, b needed to display the aligned colors of the monitor. After this, the process begins.
    five
    alignment for new monitor colors, for which control unit 40 calls up the corresponding new set of three set points from memory block 39. The automatically proceeding process ends when all eight monitor angular colors match printed angular colors,
    权利要求:
    Claims (8)
    [1]
    1. A method of simulating multi-color printing on a color monitor, which includes converting color-divided image signals Y, M, C, K into video signals of a color monitor gu, g {, bv by linearizing video signals
    five
    0
    five
    0
    five
     i
    and
    in accordance with the non-linear characteristic of a color monitor and video playback
    I i. ;
    rV N on the E1Fan color monitor, characterized in that, in order to improve the accuracy of the correspondence between the color image on the color monitor screen and the multi-color print, before playing back the video signals g, gy, bv, form the video signals g, g, b, each three of which characterize the color on the monitor screen, set the amplitudes of the generated video signals g, g, b, corresponding in color to the printed angular colors of the color space in multicolor printing, measure the set amplitudes of the formed images The signals g, g, b for the intermediate colors of the color space from the color-separated image signals Y, M, C, K taking into account the type of multi-color printing, calculate the values of the video signals g, g, b to obtain the colors of the image on the screen of the color monitor that are identical to the color ratio of the printed intermediate colors of the print color space, wherein the measured and calculated values of the video signals g, g, b are recorded at the addresses to form the angular colors and intermediate colors of the print color space, during reproduction The color image reads color separation signals,
    The изображ image of Y, M, C, K and Ieme - their values in accordance with the print gradation curve, the modified values of the three color separation signals Y, M, C, read the corresponding three video signals r, 8, b, which are then corrected modified color separation signal black to before linearization of video signals rr, g, b 0
    [2]
    2 "Method according to 1, characterized in that in multi-color printing by offset printing method, the magnitudes of the video signals g, g, b are calculated using the Neugebauer equations by determining the standard x, y, z values of intermediate colors by adding the standard color signals of the eight printed angular colors, while the proportions of standard color signals correspond to the probable surface portions of angular colors depending on the values of the raster points or the values of CHI-
    color separated image Y, M, C, then from the standard signals of intermediate colors and standard color signals reproduced on the screen of the color monitor, calculate the values of the video signals g, g, b of intermediate colors.
    [3]
    3. The method according to claim 2, 1 and 2, so that the calculation of the values of the video signals g, g, b is performed before reproducing a color image for all possible intermediate colors of the print space.
    [4]
    4. The method according to claim 2, characterized in that the calculation of the values of the video signals g, g, b is performed before reproducing a color image only for a grid of reference points of possible intermediate colors of the print color space and the magnitude of the video signals g, g, b corresponding to the values of the signals color separation image Y, M, C, K, is determined and processed by interpolation in a previously calculated reference frequency grid during color image reproduction.
    [5]
    5 o The method according to ps 1, that is, that the measured values of the video signals of the image colors on the monitor screen and the angular colors are compared with each other to match the printed corner colors.
    [6]
    6, the method according to claim 5, of which is to carry out, in order to match the colors of the image on the monitor screen with the printed corner colors
    five
    0
    The color output signals of the printed angular colors are measured using a colorimeter and stored as nominal color values, the color characteristics of the resulting image colors on the monitor screen are reproduced continuously as actual values and compared with the nominal color values to obtain the control signals of the controller and preserve the amplitudes - deosignalovs
    [7]
    7. A device for simulating 5 multi-color printing on a color monitor, containing a serially connected signal source, a color conversion unit with a linear correction unit and a color monitor, to the control inputs of which are connected the outputs of a controlled generator, whose inputs are connected to the outputs of the signal source synchronization, different that a color sensor with color adjustments, a reference value memory block, a digital-to-analog conversion block are inserted into the color conversion unit and connected in series switch block, gradation block, interpolation block and logic block,
    The second group of inputs is connected to the fourth output of the gradation block, and the outputs through the linearization block are connected to the corresponding inputs of the digital-analog conversion unit, the output of which are the outputs of the color conversion unit, and the measuring unit is entered, the Q-formation of which is connected to the outputs interpolation unit, computation unit, the outputs / inputs of which are connected to other inputs / outputs of the interpolation unit through the memory block of reference values, and the information inputs are connected to the outputs of the measuring unit rhenium, wherein the outputs of the color sensor are connected to the first group of inputs of the switch unit, the second inputs of which are the inputs of the color conversion unit.
    [8]
    8. The device according to claim 7, characterized in that it further comprises a setpoint storage unit, a color measurement unit, the input of which is optically connected to a color monitor, and an adjustment unit, the first input of which is connected to you color flow unit, the second
    five
    five
    0
    five
    input - with the output of the setpoint memory, the input of which is an additional input of the device, while the data outputs, the clock output and the control output of the control unit are connected respectively to the auxiliary inputs of the color CHI channel, to the clock input and to the control input of the block color conversion
    The color signal inputs and the clock input of the color sensor, as well as the control input of the color measurement unit are respectively the additional color signal inputs, the clock input and the control input of the color conversion unit, and the color sensor is made on the memory registers
    Table 1
    FIG. 2
    Editor O. Yurkovetska
    Tehred M. Morgental Proofreader T. Paliy
    Order 625 Circulation 391 Subscription
    VNIIPI State, Committee on Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5 Raushsk nab.
    Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101
    A1
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    同族专利:
    公开号 | 公开日
    EP0147813B1|1990-09-05|
    DE3347049C2|1986-07-17|
    AU3702684A|1985-07-04|
    US4639770A|1987-01-27|
    CA1225149A|1987-08-04|
    AU571623B2|1988-04-21|
    JPH06103389B2|1994-12-14|
    EP0147813A2|1985-07-10|
    DE3347049A1|1985-07-11|
    AT56336T|1990-09-15|
    DE3483148D1|1990-10-11|
    EP0147813A3|1988-01-20|
    JPS60168146A|1985-08-31|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3347049A|DE3347049C2|1983-12-24|1983-12-24|Method and circuit arrangement for simulating multicolor printing on a color monitor|
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