JPH0786651B2 - Reprint photographic printing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for additional photoprinting, and more specifically, a method for additional photoprinting in which photoprinting is performed using the exposure conditions recorded on a card during additional printing. It is about.

[Conventional technology]

The photographic print is almost always performed at the same time as the development of the negative film, but the photographic print may be performed again on a specific frame designated later. This photographic print is called an additional print, and the first photographic print (hereinafter referred to as a simultaneous print) in this additional print.
Photographic printing is performed by setting the original exposure conditions without considering the exposure conditions of.

[Problems to be solved by the invention]

In order to maintain quality stability, it is necessary to finish the reprinted photograph with the same quality as the simultaneously printed photograph, but in reality, the finish of the reprinted photograph is often different due to the difference in exposure conditions. This difference in the exposure conditions occurs not only due to the difference in the used printer processor, but also due to the difference in the exposure correction amount when the exposure correction amount is manually set by operating the correction key. In addition, even the same printer processor will have different finishes due to different control conditions.

[Object of the Invention]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of printing an additional print by which the additional print by reordering can be finished in the same manner as the simultaneous print.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention records the exposure conditions of each frame and the control conditions of the printer control system in a card at the time of simultaneous printing, and stores them, and the control conditions read from the card at the time of creating a reprint photograph. And the difference between the current control condition,
The exposure of the additional frames is controlled using this difference and the exposure conditions of the additional frames read from the card.

[Action]

During simultaneous printing, set the card on the printer processor and set the exposure conditions for each frame, such as the basic exposure amount, exposure correction amount, filter adjustment amount, and exposure time, and control conditions, such as the light amount of the light source and the reference position of the color filter, on the card. Record and organize / store by recording order or by user. When a reprint order is received, the order number is checked from the label or the like attached to the negative film, the card corresponding to this is selected, and this card is set in the printer processor.
The printer processor checks the amount of deviation between the control conditions for simultaneous printing read from the card and the current control conditions,
Reprint printing is performed by using the deviation amount and the exposure condition of the reprint frame.

An embodiment of the present invention will be described below with reference to the drawings.

〔Example〕

FIG. 2 shows an outline of a printer processor for color photographic paper. A magazine 11 is detachably loaded in the upper left part of the main body 10, and the color printing paper 12 is loaded in the magazine 11.
Is stored. The color printing paper 12 is intermittently drawn out frame by frame by a drawing roller 13, enters the exposure chamber 14, and is sent to an exposure position formed between an easel mask 15 and a pressure plate 16.

A negative carrier 18 is arranged facing the exposure position, and a color negative film 19 is set on the negative carrier 18. A lamp 20 is provided to illuminate the color negative film 19, and the light emitted from the lamp 20 is a cyan filter.
21, the magenta filter 22 and the yellow filter 23 adjust the three color light components. The baking light whose light quality is adjusted by the color filters 21 to 23 is sufficiently mixed in the diffusion box 24,
The color negative film 19 is illuminated from below. The printing light transmitted through the color negative film 19 is printed by the printing lens 25 and the shutter 2.
The exposure position is reached after 6 seconds.

A read / write 28 is provided on the table 27 to which the negative carrier 18 is attached, and the search data, the control condition, and the exposure condition of each frame are simultaneously printed on the card.
Written on 29. Examples of the card 29 include an IC card that inputs and outputs signals by a parallel contact type, an LSI card that inputs and outputs signals by a serial contactless type, and the like. For example L
In the SI card, an IC chip, a sheet coil substrate, etc. are enclosed in a plastic card, and this sheet coil substrate is magnetically coupled to the read / writer 28. Therefore, it has advantages that it is not affected by static electricity, contact failure and wear do not occur, and that the card can be inserted and removed with the power on. 64K of memory capacity
Bit, 256K bit, 1M bit etc.

The search data includes an order number and a frame number. This order number corresponds to one color negative film, and the label showing the order number is attached to the color negative film and returned to the user at the photo lab. The exposure conditions for each frame include a basic exposure amount and an exposure correction amount, or a filter adjustment amount and an exposure time. Furthermore,
An exposure amount obtained by adding the basic exposure amount and the exposure correction amount, or a value obtained by correcting this with channel data (sensitizer manufacturer, sensitivity, emulsion, etc.) may be used. The control conditions are
There are adjustment values such as filter reference position, light source light amount, scanner storage time and offset value, enlargement magnification, and fixed values such as channel data. Further, the developing conditions such as the temperature of the color developing solution and the developing processing speed are also written in the card 29, and the photographic developing unit 37 is used by using these developing conditions during the additional printing.
It is desirable to control

On the right side of the exposure position, a cutter 32 for cutting the exposed color photographic paper 12 into a predetermined length or more when desired, and a pair of rollers 33 are arranged. The roller pair 33 feeds the exposed color photographic paper 12 to the stock chamber 34 in which it is stocked. In this stock chamber 34, a pair of rollers 35 and 36 are arranged to form two loops.

On the right side of the stock chamber 34, a photo development processing section 37 is formed. The photographic development processing section 37 includes a color developing tank 38,
Bleach-fixing tank 39, consisting of three washing tanks 40-42.
A series of color photographic papers 12 are transported at a constant speed by a large number of transport rollers and sequentially immersed in respective processing tanks, whereby color development, bleach-fixing, and water washing are performed.

In order to control the developing conditions, the color developing tank 39 is equipped with a sensor 43 for detecting the temperature of the color developing solution, and the rotation of the conveying roller is sent to a speed detector 44, for example, a rotary encoder. The development processing speed of the color photographic paper 12 is detected.

On the right side of the photo development processing section 37, a drying drum 46 and a cutter 47 are arranged, and photo-developed color photographic paper.
After the 12 is dried, it is separated into each frame by the cutter 47 and discharged to a sorter (not shown) or the like.

FIG. 3 shows an outline of the control system. The negative carrier 18 is composed of a plate 50 and a mask 51, and holds the color negative film 19 between them. To measure the three color density of this color negative film 19,
A scanner 52 is provided to read an image immediately before printing a photograph and output the three color signals of each pixel as a time series signal. Further, a red sensor 53, a green sensor 54, and a blue sensor 55 are provided to measure the transmitted light of the entire screen.

Scanner 52, red sensor 53, green sensor 5
The output signals of the blue sensor 55 are converted into digital signals by the A / D converter 56, and then sent to the logarithmic converter 57. The data converted into the density signal by the logarithmic converter 57 is sent to the computer 60.

The computer 60 is composed of an I / O port 61, a CPU 62, and a memory 63, and performs sequence control of each unit, density data acquisition, exposure amount calculation, data acquisition from the LSI card 29, and writing. The memory 63 stores a control program for photographic printing and development processing, channel data and the like.

In addition to sending an operation command to the photo developing unit 37, the computer 60 receives necessary data from the photo developing unit 37, for example, data from the liquid temperature sensor 43 and the speed detector 44.
The densitometer 65 measures the density and gray balance of a print photograph created from a control negative,
The measurement data is sent to the computer 60. Keyboard 66
In addition to various keys for operating the printer processor, a correction key (density correction key, color correction key) for manually inputting the exposure correction amount is provided. The color filters 21 to 23 are adjusted in the amount of insertion into the optical path by a filter adjusting section 67, and the shutter drive section 68 controls the opening and closing of the shutter 26. The sensor 30 measures the light amount of the light source 20 and sends the measured value to the computer 60.

FIG. 1 is a block diagram showing the function of the present invention. The sensors 53 to 55 perform photometry immediately before printing, and write the obtained red, green, and blue screen average transmission densities, for example, LATD values, in the memory 63 (see FIG. 3). The screen average transmission densities of these colors are read out after the photometry is completed, sent to the calculation unit 70, and substituted into the basic exposure amount calculation formula to calculate the basic exposure amount of each color. The three-color densities of red, green, and blue of each pixel measured by the scanner 52 are sent to the image feature amount extraction unit 71, and the image feature amount of each color, for example, maximum density, minimum density,
The density or the like at a specific position is extracted. This image feature amount is sent to the calculation unit 72, and is substituted into the exposure correction amount calculation formula to calculate the exposure correction amount. The basic exposure amount and exposure correction amount for each frame are used by the lead writer for use in additional printing.
At 28 it is written to card 29.

The basic exposure amount and exposure correction amount for each color are sent to the calculation unit 73,
Here, the exposure amount is calculated by adding for each color. The addition result is corrected by the channel data from the control unit 77, and the exposure amount of each color is obtained. From the obtained exposure amount of each color, the color filter adjustment amount and the exposure time are calculated and sent to the filter adjustment unit 67 and the shutter drive unit 68.

On the other hand, at the time of additional printing, the basic exposure amount and the exposure correction amount calculated at the time of simultaneous printing are read from the card 29 and written in the storage unit 74. The storage unit 74 sends these exposure amounts to the calculation unit 73. The calculation unit 73 calculates the basic exposure amount and the exposure correction amount calculated at the time of simultaneous printing from the calculation unit 76.
The exposure amount of each color is calculated by making corrections according to the amount of deviation of the adjustment value calculated in. The calculation unit 76 is a card 29
The difference between the adjustment value, such as the light source light amount or the filter reference position, for simultaneous printing read out from the control unit and the current adjustment value input from the control unit 77 is calculated.

The control unit 77 controls the exposure control unit 78, the photographic development processing unit 37, and the like, and adjusts the reference positions of the color filters 21 to 23 according to the measurement value measured by the densitometer 65,
The development processing speed and the temperature of the processing solution are adjusted. Further, as shown in FIG. 4, the control unit 77 writes the order number, frame number, channel data, filter reference position, light source light amount, etc. on the card 29 via the read / writer 28 during simultaneous printing.

Next, the operation of the above device will be briefly described. When starting the simultaneous printing work, first read the card 29
After setting it in the writer 28, the printer processor is activated. Then print the control negative,
The created print picture is set in the densitometer 65, and its density and gray balance are measured. The light emission amount of the light source 20 is adjusted according to the obtained density value, and the color filters 21 to 23 are put into and taken out of the optical path according to the gray balance. The positions of the color filters 21 to 23 serve as reference positions, and the color balance is adjusted by controlling the insertion amount of the color filters 21 to 23 according to the filter adjustment amount obtained for each frame.

After performing the above print preparation work, the color negative film 19 is set at the print position, and the print key of the keyboard 66 is operated. The quality of the printing light emitted from the light source 20 is adjusted by the color filters 21 to 23 set at the reference position. This baking light is sufficiently mixed in the diffusion box 24, and then the color negative film 19 is illuminated from below. The color negative image recorded on the color negative film 19 is measured by the scanner 52 and the sensors 53 to 55. The scanner 52 outputs the three-color signal of each pixel, which is digitally converted and logarithmically converted and then stored in the memory 63. Further, the sensors 53 to 55 measure the transmitted light of the entire screen for each color, digitally and logarithmically convert the output signal, and then write it in the memory 63.

The screen average transmission density of each color written in the memory 63 is sent to the calculation unit 70, and the basic exposure amount for each color is calculated using the basic exposure amount calculation formula. Further, the three-color densities of each pixel are read out, and the image feature amount is extracted for each color using these. The image feature amount is sent to the calculation unit 72, and the exposure correction amount is calculated for each color using the exposure correction amount calculation formula.

The basic exposure amount and the exposure correction amount are sent to the calculation unit 73 and added, the added value is corrected according to the amount of deviation of the adjustment value, and the adjustment of the color filters 21 to 23 is performed according to the obtained exposure amount. The amount and the exposure time by the shutter 26 are determined.

After adjusting the color filters 21 to 23, the light source 20 is made to fully emit light, and the shutter 26 is operated to set the color printing paper.
Print the color negative image on 12. The exposed color photographic paper 12 is transferred to the stock chamber 34 by one frame,
Then, the unexposed color printing paper 12 is set at the exposure position.

When performing the next printing, the color negative film 19 is slid to set a new frame at the printing position, and then the print key is operated again. In this way, the color photographic papers 12 that have been sequentially exposed are stocked in a loop in the stock chamber 34.

When you finish printing one color negative film,
The reader / writer 28 writes the light source light amount measured by the sensor 27, the reference position of the color filter, the exposure basic amount and the exposure correction amount of each frame on the card 29 for each order number. The basic exposure amount and the exposure correction amount for each frame are written for each frame number.

When the desired number of frames are printed, the cutter 32 operates to cut off the rear end of the printed printing paper 12. The series of separated color printing papers 12 are photographed through a color developing tank 38, a bleach-fixing tank 39, and three washing tanks 40 to 42 in this order.
The color printing paper 12 subjected to the photographic processing is dried by the drying drum 46, cut by the cutter 47 frame by frame, and then discharged.

When the capacity of the card 29 is exhausted due to the writing of the exposure condition, the card is replaced with a new card and printing is performed. Since the number of cards to which the exposure conditions are written increases in proportion to the operating amount of the printer processor, these cards are sorted and stored according to the recording order or users.

When an order for additional prints is received, the order number on the label attached to the color negative film is checked, and the one with the exposure conditions of this order number written is selected from the many stored cards. The selected card 29 is set in the read / write 28 of the printer processor, and the frame to be added is set in the negative carrier 18. Next, the keyboard 66 is operated to input the order number and the frame number of the frame to be reprinted. The control unit 77 reads the exposure condition and the control condition for the additional frame from the order number and the frame number. Of these exposure conditions, the basic exposure amount and the exposure correction amount are written in the storage unit 74, and the light source light amount and the color filter reference position, which are the control conditions, are sent to the calculation unit 76.

In case of additional printing, scanner 52, sensor 53 to 5
The photometry by 5 and the calculation of the exposure basic amount and the exposure correction amount using the photometric value are omitted, and the exposure basic amount and the exposure correction amount written in the storage unit 74 are input to the calculation unit 73. The calculation unit 76 is configured to use the color filters 21 to 23 read from the card 29.
And the current filter reference position read from the control unit 77 are compared to calculate the deviation amount. Further, the calculation unit 76 compares the light source light amount at the time of simultaneous printing with the current light source light amount to calculate the deviation amount. These deviation amounts are sent to the arithmetic unit 73, and the exposure amount is calculated for each color by correcting the value obtained by adding the exposure basic amount and the exposure correction amount at the time of simultaneous printing. The adjustment amount of the color filters 21 to 23 and the exposure time by the shutter 26 are determined according to the obtained exposure amount, and the photographic printing and the phenomenon processing are performed in the same manner as the above-mentioned simultaneous printing.

FIG. 5 shows an embodiment in which a color filter adjustment amount and an exposure time are used as exposure conditions, and the same components as those in FIG. 1 are designated by the same reference numerals. In this embodiment, the exposure conditions as shown in FIG. 6 are recorded by the read / writer 28 during simultaneous printing. That is, the filter reference position, the light source light amount, and the channel data are recorded for each order number, and the color filter adjustment amount and the exposure time are recorded for each frame.

At the time of additional printing, the card 29 is set on the read / writer 28, and the keyboard 66 is operated to read the exposure condition of the additional frame. Of these exposure conditions, the filter adjustment amount and the exposure time are written in the storage unit 80, the filter reference position, the light source light amount, etc. are input to the calculation unit 76, and the channel data are input to the calculation unit 81. These arithmetic units 76 and 81 respectively compare the current data input from the control unit 77 and calculate the amount of deviation. The two types of deviation amounts thus obtained are sent to the calculation unit 73, and the filter adjustment amount and the exposure time are corrected according to these deviation amounts. The color filters 21 to 23 and the shutter 26 are controlled in accordance with the corrected filter adjustment amount and the exposure time, and the photographic printing of the additional frame is performed.

Although the above embodiment is a printer processor, the present invention can be applied to a photo printing machine.

〔The invention's effect〕

As described in detail above, according to the present invention, the exposure conditions at the time of simultaneous printing are recorded on a card, and when a reorder for additional printing is received, the card is set in the printer processor and read from this. Since the photographic printing is performed under the exposure condition, it is possible to finish the photographic print in the same manner as the simultaneous printing. Further, in the present invention, the difference between the control condition read from the card and the current control condition at the time of creating the additional photograph is calculated, the exposure condition of the additional frame read from the card is corrected based on the difference, and the corrected exposure is corrected. Since the exposure control is performed using the conditions, even if the control conditions such as the filter reference position in the printer processor change, under the changed conditions, it is possible to finish the reprinted photograph in the same state as the finished state at the time of simultaneous printing. .

Moreover, since the exposure basic amount and exposure correction amount used at the time of simultaneous printing, or the exposure condition such as the color filter adjustment amount and the exposure time are corrected based on the difference,
There is no need for photometry of the negative image and calculation of the exposure amount. Therefore, it is possible to quickly perform photographic printing of additional frames.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing an essential part of the present invention. FIG. 2 is a schematic diagram of a printer processor embodying the present invention. FIG. 3 is a schematic diagram showing the control system of the printer processor. FIG. 4 is an explanatory diagram showing an example of data recorded on the card. FIG. 5 is a functional block diagram showing another embodiment of the present invention. FIG. 6 is an explanatory view showing the recorded data of the card used in the embodiment of FIG. 12 …… Color photographic paper 19 …… Color negative film 20 …… Light source 21-23 …… Color filter 26 …… Shutter 29 …… Card 37 …… Photo development processing section 38 …… Color development tank 39 …… Bleaching fixing tank 40 〜42 …… Washing tank 52 …… Scanner 53〜55 …… Sensor for measuring average screen transmission density 65 …… Densitometer 66 …… Keyboard 81 …… Exposure controller.

Claims (3)

[Claims] 1. The exposure conditions of each frame at the time of first photo printing,
The control conditions of the printer control system are recorded on a card and stored, the difference between the control conditions read from the card when creating the additional photograph and the current control conditions is calculated, and the exposure conditions of the additional frames read from the card are recorded as described above. A reprint photographic printing method characterized by performing correction based on a difference and controlling exposure using the corrected exposure conditions. 2. The additional photographic printing method according to claim 1, wherein the control conditions are a filter reference position and channel data. 3. The reprinted photographic printing method according to claim 1 or 2, wherein the card is an LSI card that performs input / output in a serial contactless system.