JPS62270947A - Color image recorder having color correcting means - Google Patents

Abstract

PURPOSE:To quantitatively determine a correction of hue and density, and to record a color image of a high picture quality having a high color reproducibility, by inputting a spectral sensitivity data peculiar to each sensitized material, to ten keys on a console which is provided on a recording device, in a color image recording device which has used as silver halide color photosensitive material. CONSTITUTION:A color original which is placed on a platen glass 1 is exposed and scanned by a light source 2 which moves at a uniform speed in the direction as indicated with an arrow (a), and an image light obtained by a reflection therein passes through a mirror 3 which is formed as one body with its light source 2, mirrors 4, 5 of one body for moving at a speed of 1/2 of a moving speed of the light source 2 in the same direction as its moving direction, and a lens system 6 provided with a lens, a filter and a diaphragm, and thereafter, made incident on an exposure position of an exposure window 7. Subsequently, by this exposure window 7, a color photosensitive material moves in the direction as indicated with an arrow (b) by synchronizing with a movement of a light source 1, and exposed successively on the way of its movement. In such a way, thereafter, when this color photosensitive material is fed to process processing parts of color development, fixation, bleaching, drying, etc., a color copy image corresponding to a color original can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a color III image recording apparatus, such as a color copying apparatus, which has improved image color correction means. [Background of the Invention] By projecting image light carrying an image of a color original onto a color photosensitive material to expose the color photosensitive material, and then processing the color photosensitive material in a processing section such as development and fixing. , a color copy image can be obtained. In such a color image recording device such as a color copying device, it is possible to correct the color of the image light according to the spectral sensitivity characteristics of each color of the color photosensitive material, and it is also possible to correct the color of the exposure light according to the color tone of the original. Is it possible to adjust the hue, and even actively to the desired hue? F! It is required to be able to adjust the To control the hue, a three-color filter is inserted in the middle of the exposure optical path, and the amount of insertion is changed.As such a three-color filter, a filter that blocks a specific hue wavelength is used. There is a yellow filter that blocks blue light, a magenta filter that blocks green light,
and a cyan filter is used to block out the red part. This corrects the hue, and furthermore, the aperture is adjusted appropriately to prevent a drop in color density caused by an insufficient amount of light due to the filter. [Problem to be solved by the invention, α] As mentioned above, the hue correction is determined by the amount of insertion of each Y, M, and C filter, and the insufficient color density can be corrected as follows.
The decision will be made by adjusting the opening and closing of the aperture, but rough adjustments can be made by grasping qualitative trends without quantitatively processing the relationship between the amount of insertion of each filter and the lack of light amount due to hue correction and aperture correction. I was limited to doing this. It is an object of the present invention to solve these problems and establish a means for achieving more accurate hue correction and color density correction. [Means for Solving Problems and Tasks] This purpose is to provide a color image recording device using silver halide color photosensitive materials, in which spectral sensitivity data unique to each photosensitive material is stored in a counter provided in the recording device. This is achieved by a color image recording apparatus having a color correction means characterized in that the correction of hue and V density can be determined quantitatively by inputting data on the ten keys on the drawing table. [Examples] Examples of the present invention will be described below. FIG. 1 is a diagram showing an exposure part in a color copying apparatus as a color image recording apparatus, in which a color original m (not shown) placed on a platen glass 1 is connected to a light source 2 moving at a constant speed in the direction of an arrow a. The image light obtained by exposure scanning and reflection there is carried out by a mirror 3 which is integrated with the light source 2, and an integrated mirror 4 which moves in the same direction as the moving direction of the light 82 at a speed 172 of the moving speed. 5, and a lens system 6 comprising a lens, a filter, and an aperture, and then an exposure 'M7.
incident on the exposure position. Then, in this exposure window 7, the color photosensitive material moves in the direction of the arrow in synchronization with the movement of the light [1], and is sequentially exposed during the movement. Therefore, if this color photosensitive material is then sent to a processing section for color development, fixing, bleaching, drying, etc., a color copy image corresponding to a color original can be obtained. Figure tjS2 shows details of the lens system 6 described above.
Along the optical path C, a first color balance filter plate 61, a second color balance filter plate 62, an aperture 63, a mole group lens 64^, and a rear group lens 64B are arranged. As shown in the ft53 diagram, the first color balance filter plate 61 has a yellow (hereinafter referred to as Y) filter 61Y and a magenta (hereinafter referred to as M) filter 61M at both ends, and the center is The second color balance filter plate 62 has a Y filter 6-2Y and a cyan (hereinafter referred to as C) filter 62C arranged at both ends, and a colorless transparent part 62T in the center. Then, both filters 61 and 62 are moved in the opposite directions of arrows d and e (left and right directions across the optical path C) by Stella pig motors 65 and 66, with the position where the M filter matches the home position. It is movable. Therefore, by appropriately controlling both stepping motors 65 and 66, the optical path C has: (1) No filter...no hue correction. ■Insertion amount of one filter among Y%M and C 0 to 100
%...1 type of hue and saturation correction. ■Y, M, C 3! A combination of two types of filters in tJi, that is, a combination of insertion l of each of Y and M from 0 to 100%, a combination of insertion amounts of each of M and C from O to 100%, and a combination of insertions of each of C and Y. Filters can be inserted using combinations of insertion ffiθ~100%. As shown in FIG. 4, the diaphragm 63 consists of two diaphragm pieces 63a and 63b arranged so as to face from above and below the window 8 corresponding to the exposure window 7 of the optical path C (in the vertical direction across the optical path C). The home position of the aperture pieces 63u and 63b, which are brought close to each other by the Stellar Pig motor 67, is the position shown by the α line, where the window 8 is completely opened. In this color copying machine, as shown in Fig. 5, when the copy start switch on the console is turned on, the timer time T
During O, the combination of filters, the calculation of the insertion amount, and the calculation of the aperture amount are performed, and when the timer time To elapses,
The first color balance filter plate 61 is controlled based on the above calculation, and when this control is completed, the fjS two color balance filter plate 62 is controlled based on r*W similar to the above, and upon completion of the control, the aperture is adjusted according to the above calculation. controlled based on After this, the light source 1 starts exposure scanning. Next, a method of creating a control program for a color balance filter will be described. FIG. 6 shows the light transmission characteristics of each filter of Y%M and C. As is clear from this figure, the intensity (light f
f1) is inversely proportional to the insertion amount of the M filter, green (G) has its intensity inversely proportional to the insertion amount of the M filter, and red ([()) has its intensity inversely proportional to the insertion amount of the C filter. In addition to the numeric keypad 101 for inputting the spectral characteristics of the photosensitive material, a hue adjustment unit for artificially performing color correction is provided on the operation console 110 as shown in FIG. -4-+ each filter
4-9#51 Floor can be changed. Furthermore, a density adjustment section is similarly provided for the density, and the 5Fi levels from 12 to +2 can be adjusted using the operation keys 103 of the density adjustment section. The color CLo obtained by each filter plate 61,62 is C
Lo=aoY +I)oM+coC=il)ao:Y
It can be given by F value bo of filter: F value co of M filter: F value of C filter. The F value indicates the amount of insertion. On the other hand, each C and M are determined by the production loft of the color photosensitive material used.
Although data on the true spectral sensitivity characteristics of the colors , Y are recorded in detail and strictly in each packaging cassette, it is too general to enter the data into the operation keys 102 and 103, so in this case, the As shown in Fig. 8, specify C, M, and Y modes and addresses using the numeric keypad 101 including the mode key provided on the operation desk, and input the spectral data and concentration.
By setting the hue at this time as a Briseff value, the following calculations are performed by a built-in microcomputer. That is, as mentioned above, since two of the three types of filters are used, the remaining one needs to be replaced with the other two types. Therefore, the filter with the smallest F value (-the filter with the least amount of each type) is replaced with the other two types. For example, ao<
l) If o+co, the formula (1) is as follows, so the hue is adjusted using the M filter and the C filter. Also, if 130 (at+, co), equation (1) becomes C
Lo: (no bo)Y+(Co-bo)C=13)
Also, if Co < (no −130), then CLo=(ao
co)Y+(bo-co)M-(4) Hue adjustment is performed using the Y filter and C filter, and hue 1 adjustment is performed using the Y filter and M filter. This is,
This is the actual setting value of the filter corresponding to the color photosensitive material used. As a result of the above, color correction is performed using the filter in accordance with the spectral sensitivity characteristics of each color of the color photosensitive material, but if this is further artificially corrected, the hue correction operation key 102 shown in FIG. Create four i quality adjustment operation keys 103. Regarding the filter, the hue CL to be obtained at this time is CI, " (no 10 a) Y 0 (bo + I)) M +
(co+c)Ca: F value determined by the Y input value of the operation key 102 (1): F value determined by the M input value of the JfJ operation key 102 C: F value determined by the C input value of the operation key 102. Here, as mentioned above, in order to obtain this hue CL with two filters, the filter pond 2 with the smallest F value is used.
Replace with seed filter. For example, (uo+a)< (
If IlO+b), (co+c), then CL = (
no+ a) (M 1C)+(bo+ b)M+ (c
o + c) C = (bo + b - ao - a) M + (co + c - ao a) C - (5), M
Let the F value of the filter be rbo+b-ao-aJ, and the F value of the C filter be l"co+cao aJ. At this time, the aperture d is d=do+, l+, and the underlined part is the coefficient due to color correction. d. is the aperture value set using the numeric keypad when the density mode is set. Therefore, when the density is further increased to 1151g using the operation key 103 of the density W4 adjustment section, d=do+h+h'. Operation key 10 of the density adjustment section repeated again
This is the correction amount based on the input value of 3. Data on the true spectral sensitivity and density characteristics of each color, C, M, and Y, which is determined for each production run of the color photosensitive material used in this way, is recorded on the packaging container of each photosensitive material, so the data must be adjusted accordingly. The data is input into the numeric keypad 101 on the operation desk as shown in the m8 diagram, and the built-in microcomputer performs calculations based on the input data at that time.
, M, Y filter selection, insertion amount and aperture value are ttS
Proceed in the order shown in the chart in Figure 5 to obtain the appropriate hue and density. This is a means of determining the exposure light quality for the photosensitive material that will provide the most consistent image in tone of the original. However, if you wish to correct the color tone of the original to a special color tone, as described above, operate the operation keys 102 and 103 shown in FIG. 7 to create an artificial hue. This makes it possible to record high-density images. FIG. 9 is a circuit diagram showing the above control. The spectral sensitivity characteristics and V-density characteristics of the photosensitive material are entered as detailed and precise numerical values using the numeric keypad 101, and the control device 100 calculates the amount of movement and aperture of each color balance filter, and each stepping motor drives each filter and aperture. , positioning control is shown by a solid line. This is a control means by which an image with solid chromaticity can be obtained on the original. Also, if you want to make an artificial correction based on the color tone of the original, or if you want to create an image with an artificial color completely independently, use the operation keys 1, 32, and 32 to send the correction signal shown by the dotted line. The purpose can be achieved by inputting the information in 103. [Effects of the Invention] According to the present invention, it is possible to input data on the spectral characteristics of a color photosensitive material, which shows slight variations from loft to loft, into the numeric keypad on the operation table of the color image recording Q device, and it is possible to input the data on the spectral characteristics of the color photosensitive material, which shows subtle variations from loft to loft, into the numeric keypad on the operation table of the color image recording Q device. It is now possible to record high-quality color images. Furthermore, when it is desired to add an artificial correction operation, it is now possible to perform the process using another operation key.

[Brief explanation of drawings]

Fig. 11 is an explanatory diagram of the exposure and scanning part for a document of a color copying apparatus according to an embodiment of the present invention, Fig. m2 is a detailed diagram of the lens part in Fig. 1, and Fig. 3 is a diagram showing the drive of the color balance filter plate. Figure 4 is an explanatory diagram of the diaphragm drive, Figure 5 is a timing chart of the color balance filter and diaphragm operation, and Figure 6 is an illustration of the diaphragm drive.
The figure shows the transmission characteristics of the three types of filters Y, N, and C. The m7 figure shows the hue on the console, the arrangement of the operation keys and V display lamps for the wq section and the aperture adjustment section, and the figure 8 shows the mode key on the console. is a circuit diagram of positive control. 1...Platen glass 2...Light source 3.4.5
...Mirror ゛ 6...Lens system 61...First color balance filter plate 62...tjS two color balance filter plates 61Y, 62
Y...Y filter 61M...M filter BI
T, 62T...Colorless transparent part 63...Movable aperture 96
3a, 63b...Aperture piece 63F...Fixed aperture 64^...Front group lens 64t...Rear group lens 65.66.67...Stepping motor 100.
...Control device 101...Numeric keypad 102.
103...Operation key Applicant Konishiroku Photo Industry Co., Ltd. Reisha Figure 3 6 et al Figure 4 Figure 5 Figure 8 Figure 6

Claims (1)

[Scope of Claims] 1) A color image recording device using a silver halide color photosensitive material (hereinafter simply referred to as a photosensitive material), wherein spectral sensitivity data unique to each photosensitive material is recorded by an operation provided in the recording device. 1. A color image recording device having a color correction means, characterized in that the correction of hue and density is quantitatively determined by inputting information on a tabletop numeric keypad. 2) Each of the numeric keys has a hue of cyan, magenta, yellow, or its redundant colors of red, green, and blue from 0 to 100%.
The range between 0% and 100% corresponds to the hue intensity divided into fine steps, and the density value between 0 and 100% is divided into fine steps. A color image recording apparatus having a color correction means according to claim 1, characterized in that a control is activated.