JPS62120184A - Recorder - Google Patents

Abstract

PURPOSE:To make the color of the output printing of a recording means equal to the color of the display color of a display means by providing a signal calculation means for calculating a recording three stimulation value from a color recording signal and converting into a color display signal. CONSTITUTION:Picture data A of (R, G, B) is fed to an area rate converting means 2 through a picture data memory means 1. In the means 2, the data A is converted into printing data B of (C, M, Y) by using its complementary color relation. The data B is fed to a binarization processing means 5 and a binarization for a dot unit is performed and a printing is carried out in an output 7 through a recording part 6. The data B is fed to a data converting means 3. The means 3 obtains the area rate of a specific area from a color mixture state. Then, the means 3 obtains the three stimulation values (R, G, B) based on the data of the area rate of the specific area. By the three stimulation values (R, G, B), a picture for recognizing the printing is displayed on a color monitor 4.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a recording apparatus that has a color monitor such as a CRT and reproduces colors using inks of a plurality of colors, such as thermal melt transfer recording.

2. Description of the Related Art In recent years, it has become common to print printed matter in color, and many types of recording devices have been provided for this purpose.

These color recording devices are often systemized with a color monitor that can display images such as characters and patterns to be recorded in color. That is, there is a strong desire to check the content and colors of an image on a color monitor before printing it out on a color hard copy.

Hereinafter, a conventional color recording apparatus will be explained with reference to FIG.

FIG. 6 shows the block connections of the main parts of a conventional color printing apparatus.

In Fig. 6, 61 is CR (shi, do), G (green/do),
)1B (Blue)], and the image data is supplied from a keyboard 61a, a TV camera 61b, or a floppy disk (FD) 61c on which recording has already been made. 62 is sent from the image data storage means 61 (R, G, B)
For example, (R, G
, B) suitable for printing [cyan (C), magenta (M).

63 is sent from the processing means 62 (C,
Output with multiple types of ink from print data of M, Y) 6
4 is a recording section for printing, and 65 is a color monitor (CRT) for checking in advance the pattern and color of the image to be printed by the recording section 63 on output 64.

In the above configuration, first, image data stored in the image data storage means 61 for the color monitor 65 (R,
1 rain image data of G, B) is called up and displayed. Then, the image to be printed is checked 1 to 1, and if necessary, pattern correction and color adjustment of the image to be printed are carried out using, for example, the keyboard 61a. Next, by the processing means 62 (R, G, B)
Image of the evening (C.

M, Y) is converted into print data, and also converted into dot unit information. , (C, M, Y) is printed on an output 64 by a recording unit 63 using a plurality of types of ink.

Problems to be Solved by the Invention However, as shown in FIG. 7, there is a problem in that the color reproduction gamut of the color monitor 65'2 and the color reproduction gamut of the output 64 from the recording section 63 are different. In other words, the colors displayed on the color monitor 65 and the printed colors on the output 64 differ in the display characteristics of the color monitor 65 and the recording characteristics of the recording unit 63, so the colors confirmed on the color monitor 65 are not necessarily reproduced on the output 64. It had drawbacks.

In view of the above-mentioned drawbacks, the present invention provides an apparatus for confirming colors on a display means, in contrast to a recording apparatus that records multiple types of ink in layers, such as color printing or thermal melt transfer recording. The present invention provides a recording device in which the output color and the display color of the display means have a one-to-one correspondence.

Means for Solving the Problems In view of the drawbacks of the prior art described above, the present invention provides a means for displaying a color recording signal to a display means provided for checking the color of an image when color printing is performed on an output medium by a recording means. A signal calculation means is provided for converting the signal into a color display signal by linear calculation.

According to the above configuration, the present invention calculates and converts the recorded tristimulus values when the signal calculation means converts a color recording signal into a color display signal, thereby changing the color of the output of the recording means and the display color of the display means. are made to be the same.

Embodiment Hereinafter, one embodiment of the present invention will be described with reference to the drawings. .

FIG. 1 is a wiring diagram of a recording apparatus according to an embodiment of the present invention.

In Figure 1, 1 is [R (shi, de), G (green)
, B (blue)], the image data is stored in the keyboard la, TV camera l.
b, or from a floppy disk 1c on which recording has already been made. 2 is image data storage means 1
The (R, G, B) image data sent from
) r (yellow)]. 3 is sent from the area ratio conversion means 2 (
4 is sent from the data converting means 3 (R, G, B
) is a color monitor that displays image data. 5 is sent from the area ratio conversion means 2 (C, M, Y)
A binarization processing means 6 converts the print data of (C, M, Y) sent from the binarization processing stage 5 into print data of print dots. This is a recording unit that prints on the output cuff using ink.

The operation of the above configuration will be explained below.

First, to explain the recording system, keyboard 1 a
s TV camera lb1 or floppy disk 1
The (R, G, B) image data of c is sent to the area ratio converting means 2 via the image data storage means 1. The area ratio conversion means 2 converts the input (R, G, B) image data into (C, M, Y) print data using the complementary color relationship. That is, as shown in FIG. 2(a), (R,G
, B), and its complementary color (C, M).

Find the print data (Pl, P2.P3) of Y). This print data (Pl, P2, P3) is sent to the binarization processing means 5, where it is binarized in units of dots, and the recording unit 6
Printing is performed on the output cuff via the.

Next, the display system will be explained. The print data (Pl) of (C, M, Y) converted by the area ratio conversion means 2.

P2. P3) is sent to the data conversion means 3. This sent print data has the area ratio of the specific area shown in FIG. 3 based on the mixed color state, that is, (Slt S2, S3 +
S4 + S5 + S6 + S7, SB) =
(White, nano, magenta.

Since it is expressed by the area ratio of a combination of color areas (yellow, red, green, blue, black), the data conversion means 3 first
The area ratio in which area of 1 to S8 is calculated. For example, the data shown in FIG. 2(a) is converted into data (St t S3 + S7, S8) as shown in FIG. 2(b) in each region l to obtain. Next, in the data conversion means 3, the data is calculated based on the data of the above Sj (where, j=1 to 8), where is the stimulation value in the specific area determined in advance).
・・・・・・・・・・・・・・・ <1) Perform the calculation to find the 3 $1 extreme value Ti. For example, from the data in FIG. 2(b), the extreme values of the three (R, G, B) as shown in FIG. 2(C) can be obtained by linear calculation of the first equation. This 31!1 extreme price (R.

G, B), it is possible to display an image for printing confirmation on the color monitor 4.

Next, a more specific configuration of FIG. 1 will be explained using FIG. 4.

In Figure 4, 41 a to 41 c are (R, G, B)
This is a frame memory for image data. 42a-42
c is the L-up table (hereinafter referred to as L) for complementary color conversion.
(abbreviated as OT) corresponds to the area ratio conversion means 2 in FIG. 43a to 43h are frame memories for determining the area ratio of Sj, 44 is a computing unit (hereinafter abbreviated as ALU) for performing calculations, and frame memories 43a to 43h and ALU 44
corresponds to the data conversion means 3 in FIG. 45a-45
c is a frame memory for storing display data of the color monitor 4;

In the above configuration, the (R, G, B) image data bus 46 and the frame memory 41a-4 for image data,
It is input to LUTs 42a to 42c via 1c. L
The UTs 42a to 42c convert the complementary color relationship of (R, G, B) into print data (C, M, Y) suitable for printing. This print data (C, M, Y) is sent out again from the bus 46 to the frame memories 43a to 43h via the ALU 44. In the frame memories 43a to 43h, the input data is changed to the area ratio Sj in eight types of areas, and A
Send to LU44.

The ALU 44 performs a linear calculation based on the first equation, and sends the result to the display data storage frame memories 45a to 45c, so that the color monitor 4 can display the image for confirmation.

As explained above, according to this embodiment, the area ratio conversion means 2 converts image data into print data, and the data conversion means 3 converts the area ratio Sj in the area from the mixed color state.
By finding the 3-point extreme value T by linear calculation,
It is possible to obtain an image on the color monitor 4 that corresponds one-to-one to the color of the output cuff produced by the recording section 6.

Note that the calculation formula of the first formula in the above embodiment can be easily simplified.

That is, as shown in Fig. 5, if conditions are given such that the overlap of each color ink is maximum, the reproduced color will be (1) white: (C, M, Y) is not given even one color (S
i) (■) Primary color (C, M, Y): Given by only one color (C, M, Y) (S2 + S3, S, 1)
([ID secondary color (R, G, B): (C, M, Y)
Available in only two colors (S5, S6+ 57)■
Black: Given by three colors (C, M, Y) (S8
) can be divided into four areas I to ■. Therefore, if the tristimulus value Ti of the color due to color mixture is
If k, then Ti-Σ tik-Tk (however, i=1 to 3)...
...(2) It can be given as 1 (=1), making it possible to simplify and speed up calculation processing.

Effects of the Invention As described above, the present invention provides signal calculation means for calculating recording tristimulus values from color recording signals and converting them into color display signals. It is possible to make the color the same as that of a dog, and its industrial value is that of a dog.

[Brief explanation of drawings]

Fig. 1 is a professional wiring diagram of a recording device according to an embodiment of the present invention, Fig. 2 is a conceptual diagram showing the processing of the same device, and Fig. 3 is a conceptual diagram showing a color mixing state of (C, M, Y). Figure 4 is the first
The main part of the diagram is a wiring diagram of the book, and Figure 5 shows the (C
, M, Y) is a conceptual diagram showing an area formed by overlapping colors.
FIG. 6 is a professional wiring diagram of a conventional recording apparatus, and FIG. 7 is a characteristic diagram showing the characteristics of the recording system and display system in the same apparatus. 1... Image data storage means, 1a... Keyboard,
1b...TV left camera lc...floppy disk,
2... Area ratio conversion means, 3... Data conversion means, 4
...Color monitor, 5...Binarization processing means, 6...
- Recording section, 7...output. Name of agent: Patent attorney Toshio Nakao and one other person. Figure 2 (α) 44 East Data (C) #ii Figure 3 Yellow Majinter z1)
4 Figure 5

Claims (5)

[Claims] (1) a recording device that performs color printing on an output medium using a color recording signal; a signal calculation device that calculates a recording tristimulus value from the color recording signal and converting it into a color display signal;
A recording device comprising display means for color displaying an image recorded by a color display signal outputted by the signal calculation means. (2) The recording apparatus according to claim 1, wherein the color recording signal is equal to the area ratio of each color ink printed by the recording means to a unit area. (3) The recording device according to claim 1, wherein the recording means reproduces colors by overlapping recording with a plurality of types of ink. (4) The recording apparatus according to claim 1, wherein the signal calculation means calculates the area of a color generated in a color mixture state per unit area of each color ink printed by the recording means. (5) The recording apparatus according to claim 1, wherein the recording means is configured to maximize the overlap of each color ink with respect to the color recording means.