JPS59171289A - System for adjusting and controlling color characteristic - Google Patents

Abstract

PURPOSE:To adjust simply and automatically a color characteristic with high accuracy by detecting the amount of change in input information corresponding to various color information and deciding the amount of adjustment where the amount of change is minimized so as to adjust the color characteristic in a picture input/output system. CONSTITUTION:An adjusting device 2 is selected to an input/output mode by a mode switch. Then, in the input/output mode the input information from a picture input device 1 produces an address to an entry to a conversion table 12 depending on each intensity of, e.g., red, green and blue colors at an address operating section 13 via an input buffer 4. The accessing to the conversion table 12 is performed by this address, the corrected intensity information is read and the corrected picture information is transmitted from an output buffer 7 to a picture output device 3 to attain the picture output with the same output color as the input color.

Description

[Detailed Description of the Invention] I'J Technical Field of the Invention The present invention provides a color characteristic adjustment control system, 1iil 1'! in which 4L'i is equipped with both one-quadrant input device and image output device. The input color and output color in the processing system can be easily set by height m, jE':
The background of the technology and the arrangement of the vertices is as follows: TV cameras, do, rano suyasu, etc.;
If the image information is input 1-7 from the surface-image input device, the dimple <-
In some cases, it is simply converted into numerical information and used, but in some cases, it is used as output information for image output devices such as color printers and image displays.
There are many seeds.

In this case, it is desirable that the input color to the single-picture input device b' appears as it is as the output color from the image output device.

In general, adjusting the color tone of an image input/output device is a task that is often difficult for non-technical personnel, and it is difficult to completely match the input image color and output color using an image processing system. It can be said that it was extremely difficult. Image $ 3ffi 1% The contrast of the container and the characteristics of colored coins (hereinafter referred to as coverage 1μ) vary widely depending on the model, but even if the model is the same.

Individual differences become smaller. , the adjustment for the conventional one color special i cow.

Methods that could not be expected to be very accurate were used, such as rotating several volume knobs on the device. If you try to make it possible to adjust even the subtlest tones using this method, you will have to increase the number of volume knobs, and as the number of volume knobs increases, the complexity of A adjustment will increase exponentially. This places a heavy burden on the adjuster (2).However, if you try to make adjustments using the number (1~-6-) of the volume that is included in a normal device, you will not be able to obtain a slight sandy color characteristic. 9 For example, if you try to express the quality of red color in a good quality, the quality of yellow color will be inferior.
If you try to improve the quality of yellow, the patina will deteriorate and...
・Finally, when you realize that the quality of the red that you originally adjusted has deteriorated, this is a vicious cycle (= this often happens. Also, with the above adjustment, the color characteristics that the image processing system blade has innately curve (two independent adjustments are 1.tl difficult).

Furthermore, according to the above method, it is difficult to make adjustments when data is exchanged between two devices. Conventionally, image processing blades that have one image input device and one image output device have to adjust the color characteristics of each device independently, and even that is difficult as mentioned above. It has been nearly impossible to make adjustments that take into account the consistency of color characteristics between the device and the output device.

0 Purpose and structure of the invention The present invention aims to solve the above problems and provides an image input device.

Even if individual devices such as an image output device are not precisely adjusted, the overall color characteristics can be adjusted at once. The purpose of this project is to provide a method for adjusting color characteristics that automatically adjusts the consistency of two colors easily and without relying on human intuition. 2. The color streak adjustment control method and formula of the present invention includes at least an image, an input device, and an image output device, and inputs the image information input from the image input device to the image input device C2. Image input/output ratio to be output - In the control system, if a color characteristic adjuster is provided between the image input device and the image output device, 1. In determining the amount of adjustment by the nuclear color contrast adjuster, 1. Input a color sample containing various lusts from the image input device, or generate the color sample by the color characteristic adjuster (-) and output it to the image output device, and then output the image to the image output device. The output information of the output device is configured to be input to the image input device, and the characteristic adjuster detects the amount of change in the input, information, and information corresponding to the color information to each of the above, and determines whether the amount of change is the minimum. The system is characterized in that the configuration is configured to determine the adjustment amount, and the color characteristics in the image input/output system are adjusted based on the determined adjuster.This will be explained below with reference to the drawings. g) Embodiment of the invention Fig. 1 is a schematic system configuration diagram for explaining the present invention in detail, Fig. 2 is an explanatory diagram of a color sample, and Fig. 3 is an embodiment of the present invention (
FIGS. 4 and 5 are explanatory diagrams of the color sample storage section of the adjuster according to No. 1, and FIGS. 4 and 5 are explanatory diagrams of color characteristic adjustment.

In FIG. 1, 1 is an image input device, 2 is an adjuster,
'3 represents an image output device. In the case of the present invention, the color tone input from the image input device 1 is correctly adjusted by the adjuster 2, without being influenced by the characteristics of each image output device 5, as described below. 0 Initially, the regulator 2 selects 7 combinations of each color information.
□Generate a color sample signal. Alternatively, a color sample previously printed on paper or the like may be inputted from the image input device 1. This color sample is output by an internal image output device.

2nd ix+<-2yz as shown in the figure, and for each section separated by a white line: [I'ii, A i, 1, different color information is created": so that (- It has become.

Note that this color information does not need to be absolute, and only needs to include color information of each im.

The memory of the 100th anniversary of the death of 100 years ago is cold ((2).

For example (A2153 diagram 1J+1<, valley section Aiy
Separate (- memorized. Fig. 3, Fig. 7j:, of j, [Uai,
j-1'll stop is section A, 1 (for two, red R9 green G, 7j' J3 l + Mi degree is 10° 0.5
．． 05 What's going on? In this way (2゛J-all [8 songs 1Ajt, 9 colors,: 1.', I different strong scales are memorized (-becomes), then -1-, memorized sample; #, , 1lIIi f
The output device 3 -
・11E1;1 Output on the solid line in the 9 [I format shown in Figure 2 ν11, This output is directly output to the image generator 1
Against the other side - human power + jNj'l blowing device 1 is human power IIHi
, route 4-..., toy-te f from output device 3 to human power device 1
ξJ's color -1 is considered to be (1'i position θ) -3j or 1y4 -C, so adjuster 1Q
, based on the white line on the color zamble.

The position is fixed and the original color combination is made to correspond to the ward l\T+1 on a one-to-one basis. Here, if the initial (- memorized color sample and the manual input intensity of the color sample that has passed through the output device 3 and the input device 1 once) match, then the consistency between the input device j and the output device 3 is confirmed. 1. However, in general, it is unlikely that all partitions A i J will be the same.

By the way, based on the first color sample)■Intensity is 7゜Lt
) Force instrument 3. Input device J′? The input intensity is input to the adjuster 2, and the relationship between the two is shown in Figure 1, assuming one color. It will be something like this. If the standard strength and ノ (strong; (As shown by the dotted line 41, it becomes a linear characteristic. However, 7. Deterioration often occurs).

Bijun Qiang (birth (two-C), as shown by the solid line in the diagram, irregularly (changes to Cao) [n ○ 5th 4" of deterioration 1.
This figure illustrates an example of the j-coupling. If we can find the real curve shown in Fig. 5, we can find the inverse A? -r(by 2, 4t^1-11 Arrival N2 l(,,"4 The amount of adjustment that should be done is determined, standard "A': jJZ and human power intensity which ratio is 1(-1 catty) It is also possible to add
The answer is red R9 green G, then B with Il, was C, then) combination ('
: 1-The phase 7I-effects between these colors must also be mastered.

One section! [tjf l] was done in 2), the standard strength,
j court 4λ,.

0,, B, and input 1 penalty) W is R,, (-n3.
B, then the ↑・/1 hold of Huff et al. is given by the following formula.

R,, = a, J:<,, + h, G, -+,
,,B.

(−(, −・ (I )ku, + A, q (Sushi
Death CdaB1B2 -□ (Z7. .1 size, +
J (: l l + C6B.

Here, -C1σ, (, -r1<, has a good effect on the effect of 3). Soil. h LL (
)1's R3 length Ml)B7 餉)) Sun's 1 thread λ (and 2 chairs Z) ol's '7' + a, q 1 ""t'
J also has 4 children, 2 and ζ). The number of these threads is 1, for example (1
,,a,,α), (knee) is 1, depending on the size of In this case, the unknown coefficients of 9 are J"-(+', -f-+:", but by adding 2 sections to 1), the input intensity of the regulator 20 is is sent to the output device 3 as the second reference intensity, and is re-inputted from the input device 1, so that i<,.

G1. 7. Extract many expressions containing or B. Determining the above-mentioned book knowledge 0-4 is easy and possible. Note that this matrix operation (ril' of l −yyz
Since this is well known as the n-machine technology, the explanation will be omitted. )J
- Unknown coefficients were calculated /j, are 1 matrix A, strong 1
After performing μs correction and outputting to output device 3 -4-, input;'
, the adjustment between this 1 and the output device 3 is performed.

Ka (oh, t, it's 1, secondary F/) J', l positive too l
It will be ``I-B''.

There is almost no problem even if you look at 1-2 in the 1st or 1st grade of the inferior f-hi series, and for racing purposes.

The correspondence lyU prefecture with the above correction is a three-dimensional correspondence of n < 3 → R3 with Tsu・1 ship JR -), but as each color is independent, an approximate correspondence of Ti < → R is made. too,
It is possible to achieve considerable consistency.

FIG. 6 shows the configuration of an embodiment of the present invention. In the figure.

Reference numerals 1 to 3 correspond to FIG. 4 is an input buffer, 5 is a color sample generation section, 6 is a color sample storage section, 7 is an output buffer, 8 is a position identification section, 9 is a collation section, 10 is a calculation section, and 11 is a coefficient determination section.

12 represents a conversion table, and 13 represents an at1/s calculation unit.

When the adjustment mode is designated by an adjustment mode switch (not shown), the adjuster 2 generates a color sample signal having the content as shown in FIG. -Stored in the storage unit 6. The number of color sample sections may be determined as appropriate depending on the allowable amount of memory used, the required degree of coverage, and the like. Various color information stored in the color sample storage section 6 is sent via an output buffer 7.

The image is output to the image output device 3. In the image output device 3.

Information on a color sample having a pattern as shown in FIG. 2 is output.

The image input device 1 inputs the output of the 9-image output device 3 as it is manually. This input information is supplied to the position identification section 8 of the regulator 2 via the input buffer 4. As described above, the position identification section 8 detects, for example, the white line part of the color sample, performs position correction, and generates an address for reading out the contents of the corresponding color sample storage section 6. The reference intensity information in the sample storage units 6 to 4 is compared with the input intensity information from the position identification unit 8, and the information including the previously accumulated information having the related intensity information is sent to the calculation unit 10. The calculation unit 10 calculates a deterioration coefficient that associates the input intensity with the reference intensity by matrix calculation.

The coefficient determining unit 11 determines a correction coefficient corresponding to the reference intensity (2) based on the calculation result.The correction coefficient thus determined is written into the entry of the conversion table 2 defined by the set of reference intensities. Similarly (2. For each section, that is, for each set of reference intensities (= correction coefficients are determined and the conversion table 12 is created. It may also be set in the conversion table 12.

When actually inputting and outputting image information, the adjuster 2 is set to input/output mode by pressing a mode switch (not shown).When in the input/output mode, input information from the image input device 1 passes through the input buffer 4 to the address calculation unit 13
supplied to The address calculation unit 13 generates an address to an entry in the conversion table 12 determined by each intensity of red, R, green, G, and blue, for example. The conversion table 12 is accessed using this address 42, and the corrected intensity information is extracted and sent to the output buffer 7. From the output buffer 7 to the single-plane image output device 3.

The corrected one-by-one image information is transmitted 11 times, and an image with the same output color as the input color is no longer output.

In the case of the embodiment shown in FIG. 6, the amount of 311 to be corrected was determined based on calculation. For example, for 0-order C2, prepare all sets of various regulators within the necessary range in advance, and correct the standard strength one by one using all the regulators for each section. The one in which the difference between the reference intensity and the input intensity is the smallest may be determined as the actual adjustment amount of the corresponding intensity.

FIG. 7 shows the configuration of another embodiment of the present invention based on this system, and FIG. 8 is an explanatory diagram of the adjustment amount detection table shown in FIG. 7.

In the figure, the numbers 2, 4 to 8, 12 are shown in Figure 6.
□ Correspondingly, 20 is a table counter, 21 is an adjustment amount detection table, 22 is a multiplier, and 23 is a subtracter.

Reference numeral 24 represents a minimum determination unit, 25 represents a current adjustment amount storage unit, and 26 represents a partition pointer.

In the adjustment mode, the adjuster 2 generates a one-color sample signal by the nine-color sample generating section 5 and stores it in the nine-color sample storage section 6, similar to the station shown in FIG. The contents of the color sample storage section 6 are sequentially supplied to the multiplier 22 for each section.

On the other hand, the adjustment@amount detection table 21 has a red color in advance.

Adjustment amounts for each color such as green and blue are stored as constants, for example, as shown in FIG.
According to the points, the adjustment sum is provided for each valley group.

This W H+j is calculated by the system (-) if the degree of color intensity is 20% iG, then the adjuster 2 (2 years 1 (Rorinple J4'l relative hesed) is also υ). The multiplier 22 is the eighth
Ward 1 illustrated θ[+<, i! ，Specifically Yu1ξ No. ゛! Full use,
High output tufa 7 A・-6 mountain and 7n Kai-◇0 East y
The hand setting used for T: 葎 is Gencho 3 senryoki 1': 1 'i'
il to 25 (-memory ladder), 3.

r1173 (output 2 of device 2) is input to 2 planes 1 output device and human power device Kei-C, input cover 4-\tjf). Similarly, the 8th position is i\ and 19 ura lE.

Color-1- Correspondence of 7-pull storage unit 6-・``Ruato L/Shego・To+4E-[With Ru, color number; 1self...-,
111♂0 j old (・8・2・Iij generation'11 tube-1'
Look.

Currently, there is only one human-powered input vessel ;')'I 'j't'.と、、戊會aτ23\II（お（：T〈“）。、戊・♀
'． 1”i 2 3 H, appearance color 1σ (2 is 11, 1 ro is 1 in 92, shop i/i HjIi
h' and)\force jtk l'. C and Q): 7+A 1m
'l'': Put out 1.

1'-Iill to the minimum i"'j 'I: f part 24\
葡衬-1-ru, 9 Hi-ko 41 constant ÷ G1524, in charge of each section, key "Ji 14 IJA table 21 for the death - Zhou Kin) 1's A C, which □1'4' When l and 71 (k' are used, 3-main (2, 7 divination, layer, Jylt 1- (C) human power; the first giant with upper limit t:) 1f is □, depleted, determine whether it becomes small. When an adjustment amount that results in a smaller distance than the previously tested adjustment amount is detected, that adjustment is read out from the current adjustment amount storage section 25, and the corresponding section end of the conversion table 12 is read out. Correspondence: The partition address is determined by the partition pointer 26 set by the position identification unit 8.

For each section of the color sample, the optimal one of the pre-prepared dest adjustment values is set in the conversion table 12 as described above.

When the adjustment mode is completed and the mode is switched to the input/output mode, adjustment using the conversion table J2 is performed as described above. Note that this also applies to this embodiment.

Instead of the loop of 11o1, the input signal is transferred from the position identification section 8 to the multiplier 22, and the loop of adjustment and output is repeated several times, and then. Optimal adjustment amount: If you check whether or not, it becomes even better (= good.

0] Effects of the Invention 1 According to the invention explained above, it is possible to match the manually-powered color of the system and the output color as a whole without relying on the intuition of the controller. From 1 ↑ tun and gu.

1←, the image human power device and the output device are each individually (-adjusted poultry house +:, t1.]'eJ -adjustment of the color property. ll'i'i+ri- (second crystal) You will be able to do it at tj' degrees., again.

The present invention can also be used to match the colors between the output devices of 1, 5 jtl-r a) and -5u1i. jt': So.
)) I irlJ is the output color to the image display. :saying
Figure 1 is a detailed explanation of the present invention. ! ,z system configuration diagram,
8 evil 2 figure is color Sanjino l-explanatory diagram, t53 figure is the present invention (
-The relevant error 3 Adjustment device-)LnbunotejfGfliji(2-)Explanatory diagram, Fig. 4: 1-; and Fig. 5 are colors') -Gono Ri'l 1.V'<
l l Figure 6 shows 7 do jl, Ll (7) - Real b (
↓J1 E1] Regret) Jshi Figure 7 is by Sadaaki Moto, No) 111
! - Real j11! 1 example Yai・Masei: □ Odor 8 figure is the 7th
Output to 111 Tape printing status diagram to I1
-j1guichif0 In the diagram, 1 is the image human power tool, 2 is the ￥l item, 3j・o. ji*i 1: Gudezuki, 6 is color sample storage, 12 is strange) back table, 21 is ;i+. '
．． l l! Create a table for detecting fl relatives O 2nd
Figure 3 □ 41 Figure 5 1--□--→-shi
-→1 (Bori Yuei Series No. 6 (2).

Claims (2)

[Claims] (1) An image input/output system equipped with a small / In the chromaticity adjustment control method, a color characteristic adjuster is installed between the L image input device and the 1 image output device, and the color characteristic adjuster is Decision (-
Warm °C9 Tanigami! Input the color sample that contains the color 1~information from the above-mentioned image searcher υ device, or the above color - rearrange'' - subcolor 11 tones + i gz - (threat, morning 2nd, - Write 1tjii image output J: 'E (- Output,
(=, the output device 1 report of the jc'j image output device is the above image'
Elephant Jinrikiki (consisting of two people, 1 circle and 2 meroyo, the above colors are 10F)
! The Cow-like Kidney Detection detects each of the above N111 colors and information (corresponding input information;
is configured such that 1i) lI'ff-'\11 is set to the minimum, and the color characteristics in the image appearance system are adjusted based on the key Jra', IR- which is set to A. A characteristic adjustment control method characterized by: (2) The color characteristic adjuster determines adjustment based on a change meter based on multiple loops of input information between the image input device and the image output device. A color characteristic adjustment control system according to claim (1), characterized in that it is configured as follows.