JP3120564B2 - Image reading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus for reading a transparent original such as a photographic film and displaying it on a monitor.

[0002]

2. Description of the Related Art Japanese Patent Laying-Open No. 2-136845 discloses an apparatus for reading a transparent original such as a photographic film. Japanese Patent Application Laid-Open No. 3-68258 discloses an apparatus in which light transmitted through a film is scanned and read by a CCD, and pixels are thinned out according to a certain rule and displayed on a CRT display.

An apparatus has been provided in which an image on the film can be confirmed by setting the film at a predetermined position of a reading device and projecting the film with an optical viewer (illumination device used for an OHP or the like).

[0004]

There is a demand for confirming an image of a film to be read by a film reading device before setting the image on the device. For example, in the case of a 35 mm film, a plurality of frames are continuously arranged, and it may be desired to confirm which of the frames should be set at the read position before setting.

In such a case, conventionally, the film is held over a light such as an electric light or the sun and the transmitted image is visually confirmed. However, according to this method, since the light source is a point light source, the irradiation light amount differs between the center and the peripheral portion of the film, and a good image cannot be viewed. In addition, the posture is unnatural, and it is difficult to confirm the posture.

For this reason, there has been provided an apparatus for projecting an image with an optical viewer as described above, but this apparatus can confirm only one image (frame) at a time. 3
In many cases, images similar to adjacent frames are recorded on a 5 mm film, and there is a request to check them side by side. However, this apparatus cannot meet such a request. In addition, in this apparatus, an operation of setting a film on an optical viewer is required, so that the working efficiency is low.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a device capable of checking a film image to be set on a device for reading a transparent original in a simple and comfortable posture. I do.

[0008]

According to the first aspect of the present invention, there is provided a transmission image of a film set at a predetermined reading position.
The image is read and converted into an electric signal, and based on the electric signal,
An image for displaying an image of the film on a display
Light source for instructing display of light source color in reader
It corresponds to the operation input from the color input means and the light source color input means.
Mode control means for setting a light source color display mode by using
Once the color display mode is set, the display
And a drive control means for causing the area to emit surface light with a specific color of a plain color .

In the above, as described in claim 2,
The plain specific color may be configured to be adjustable. On the spot
In this case, you can adjust the surface emission color (light source color) of the display.
Positivity of buildings, costumes, interiors, etc.
By holding LUM in front of the display,
Color simulation of view, clothing under various indoor lighting
Perform color simulation of interior or interior
I can. The invention according to claim 3 is the image reading device according to claim 1, wherein the specific color is white. Claim 4
The invention reads a film original at a predetermined read position and
Image reading that generates image data and displays it on a display
An apparatus for detecting presence or absence of a film original at the read position.
Detecting means for detecting and commanding reading of film original
Input means for inputting a film original by the input means
When the reading of the
If there is no original document,
Drive control means for performing surface emission with a specific color of the ground.
An image reading apparatus characterized by the following.

An operation input from the light source color input means is detected.
Then, the light source color display mode is set by the mode control means.
It is. When the light source color display mode is set, the drive control
The specified area of the display is solid color by control means
And the surface is uniformly emitted.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in the order of [1] Mechanism of film scanner device [2] Control circuit of film scanner device [3] Control of film scanner device

[1] Mechanism of Film Scanner Apparatus FIG. 1 shows a system including a film scanner apparatus 30 according to an embodiment and a digital color copying machine 900 connected to the apparatus 30. The film scanner device 30 includes a main body 40
The image of the film (negative film or positive film) set in the scanner is scanned and displayed on the CRT display 300, and the image signal is transmitted to the digital color copying machine 900 to form a full color image on paper. Device.

[1-1] Film setting mechanism Films that can be set in the film scanner device 30 include:
There are four sizes: 4 × 5 inch, 6 cm, 35 mm (continuous), 35 mm (mount = positive film for slide).
These are set on a carrier 700 prepared corresponding to each size of film so that the image area of the film matches the carrier window 710 as shown in FIG. 2) It is set on the trolley 750 on the main body 40 side as indicated by the one-dot chain arrow a. Note that the carrier 700 is set so that the film does not fall down.
A lock mechanism (not shown) is provided. Further, since the carrier 700 can be set on the front side of the apparatus as indicated by the arrow a, the operator can operate the film while viewing the film, and the operability is good.

When the carrier 700 is set on the trolley 750, the optical path of the transmissive photosensor 753 for detecting the presence or absence of the carrier, which is fixed in the trolley 750, is interrupted, and its output is changed from low level (0) to high. Invert to level (1). As a result, the set of the carrier 700 is detected (see S121 and S131 in FIG. 11). As shown in FIG. 6, the type of the carrier 700 set on the trolley 750 (type of 4 × 5 inch film carrier, 6 cm film carrier, 35 mm continuous film carrier, 35 mm mount film carrier) is as shown in FIG. A maximum of two film type detection holes 701 and 702 provided (or not provided) at predetermined locations according to the type of the film type are provided at the corresponding locations in the trolley 750, respectively. The optical paths of the photosensors 751 and 752 are secured (or blocked), and the photosensors 75 with secured optical paths are provided.
1,752 outputs are detected by inverting them from high level (1) to low level (0).

The above-mentioned trolley 750 is used to align the frame of the 35 mm film with the broken arrow b in FIG. 6 (and FIG. 2).
It can be moved manually in the left-right direction of the figure as shown in FIG. The horizontal movement causes the carrier window 710 of the film image to be scanned to move to a predetermined scanning position (the position where the image is scanned by the film scanner 30 = the film 79 in FIG. 5).
0), the carrier window 710 is positioned.
The carrier set detection hole 705 provided immediately below the center position of the secures the optical path of the carrier set detection transmission type photosensor 755 fixed to the main body 40 side, and outputs the output of the photosensor 755. Invert from high level (1) to low level (0). Thereby, the above-described positioning is detected.

[1-2] Operation Switches, etc. The CRT display 300 has, as shown in FIG. 3, an image area 301 for displaying a scanned image and a light source color, as well as various messages. A message area 302 for displaying a message and a number display area 326 for displaying the set number of copies are provided. Various switches (image adjustment switch 305, trimming switch) which are turned on / off by operation of a tab key 352 (FIG. 4) after being designated by a cursor moved by inputting a track ball 351 (FIG. 4). 306, enlarged continuous shooting switch 308, reduced continuous shooting switch 307, output confirmation switch 309, output size switch 310, clear switch, reset switch, copy number + copy switch 327)
Area is provided. Further, as described later, in a mode in which the light source color is displayed, an area for a switch for adjusting the light source color is provided (see FIG. 14).

In the message area 302, necessary lamp units or carriers, data for shading correction are provided.
That the data is being imported, that the carrier has been pulled out,
Various messages are displayed, such as that the film type and output paper size or the light source color can be adjusted. The above switch area is selected by operating the tab key 352.
For example, a submenu is displayed by selecting the image adjustment switch 305, and image adjustment such as color balance can be set. The trimming mode is set by selecting the trimming switch 306. By selecting the enlargement continuous shooting switch 308, a submenu is displayed, and the output size can be set. Selection of the reduction continuous shooting switch 307 sets the reduction continuous shooting mode. By selecting the output confirmation switch 309, the relationship between the print image and the paper is displayed. By selecting the output size switch 310, a sub-menu is displayed and the paper size can be set. The copy mode is initialized by selecting the reset switch. Copy number +
The number of copies is increased or decreased by selecting the switch 327. A group of switch regions (switch regions shown in FIG. 14) for adjusting the light source color will be described later.

The film scanner device 30 is operated by a switch group shown in FIG. 4 in addition to the switch area provided on the CRT display 300. That is, on the operation panel 350, a track ball 351 and a tab key 352 are provided.
An image input key 353 for instructing image input or light source color display, a stop key 354 for instructing stop of operation, and a copy key for instructing printout.
(Print key) 355 is provided. Trackbo
The cursor 351 is a sphere that can be freely rotated by manual operation, and the cursor on the CRT display 300 is moved by the rotation of the track ball 351. A tab key 352 is a key for inputting coordinates designated by a cursor. That is, the car
When the tab key 352 is operated while the sol is pointing to any of the switch areas, the mode or operation indicated by the switch is selected. If the tab key 352 is operated while the cursor is pointing at the image area 301 under the setting of the trimming mode, the trimming area can be set. Further, the film scanner device 30 includes:
In addition to the operation panel 350, an internal panel 360 is also provided. On the internal panel 360, various key switches shown in FIG.

[1-3] Outline of Optical System FIG. 5 shows the optical system of the present film scanner 30 as viewed from the direction of the dashed-dotted arrow a in FIG.

In this optical system, the film 790 and the color CC
D800 is fixed, and the illumination unit 55 is used for sub-scanning.
0, first mirror 501, second mirror 502, third mirror 503
Is reciprocated. During sub-scanning, the illumination unit 550 and the first mirror
501 and the second mirror 502 and the third mirror 50
3 are integrally moved and driven by a stepping motor (not shown). The illuminating unit 550 includes a one-dimensional line illumination halogen lamp provided horizontally, and the color CCD 800 includes a one-dimensional line sensor of about 5,000 pixels for each of R, G, and B pixels.

In the present optical system, as described above, films having different sizes are illuminated, and the transmitted light is projected onto the color CCD 800 and read. For this reason, the imaging magnification is changed according to the film size. For example, “× 2.51” for 35 mm film, “× 0.95” for 6 cm film, 4 × 5 inch
For film, it is “× 0.57”. Here, the magnification is set such that the short side direction of the film is the main scanning direction of the color CCD 800. The imaging magnification is changed by changing the conjugate length. That is, the positions of the second and third mirrors 502 and 503, the position of the imaging lens 520, the lens back mirror portion (the mirrors 504 and 503).
The position of the member on which the mirror 506 is mounted is changed.

For example, in the figure, the second mirror 502 and the third mirror 503 located at the sub-scanning start position have solid lines of 4 × 5 inc.
The case of the h film, the case where the one-dot chain line is a 6 cm film, and the case where the two-dot chain line is a 35 mm film are shown. The above positioning control is managed by the number of driving steps from a reference position sensor (not shown). In addition, the imaging lens 52
0 is at the position indicated by the two-dot chain line for the 35 mm film and the 6 cm film, and at the solid line position for the 4 × 5 inch film. The above positioning control is managed by the number of driving steps from a reference position sensor (not shown). The lens back mirror portion on which the mirror 504 and the mirror 506 are mounted is located at a solid line position on a 6 cm film and a 4 × 5 inch film, and has a size of 35 mm.
In the film, it is at the position indicated by the chain line. The above positioning control is managed by the number of driving steps from a reference position sensor (not shown).

When the lens back mirror portion is at the position of the solid line, the light (indicated by a dotted line in the drawing) that has exited the imaging lens 520 is reflected by the mirror 504 and then passes through the filter block 570 to be primary. The original color CCD800 is reached. On the other hand, when it is at the position indicated by the one-dot chain line, it is reflected by the mirror 504, reflected by the fixed mirror 505, further reflected by the mirror 506, and then transmitted through the filter block 570 to form a one-dimensional color. -C
It reaches CD800.

As described above, in front of the CCD 800, 4
A filter block 570 on which various types of filters 571 to 574 are mounted is provided. These filters are
Depending on the positive film, the amount of light to CCD800, R, G,
Performs the function of adjusting B balance. Filter 571
Is, for example, LB100, which is used during the actual operation of the negative film. The filter 572 is used when capturing shading correction data for a negative film, and the filter 573 is used when capturing shading correction data for a positive film.
Used respectively. The filter 574 is, for example, an ND filter, and is used at the time of actual operation of the positive film.

The filter block 570 is driven and moved by a stepping motor (not shown). The above-described positioning control is basically managed by the number of driving steps from a reference position sensor (not shown). However, as an auxiliary mechanism, a sensor for detecting the upper limit position and the lower limit position of the moving range of the filter block 570 is provided. Have been. Thus, color C
Providing a filter immediately before the CD 800 has the advantage that the size of the filter can be minimized. As described above, the reason why different filters are used in the actual operation and the shading operation is that the light amount and the balance are different from those in the actual operation because the film does not intervene in the shading operation. It is.

[2] Control Circuit of Film Scanner Apparatus The film scanner apparatus 30 is controlled by a CPU 400 shown in FIG. The image read by the color CCD 800 is processed by an image processing circuit shown in FIG. [2-1] Control Circuit Connected to CPU 400 FIG. 7 shows a CPU 40 for controlling the film scanner device 30.
8 shows the peripheral circuit configuration. FIG. 8 shows the parallel I / O of FIG.
406 shows a peripheral device connected thereto.

The CPU 400 receives a program ROM 401, a table ROM, a RAM 403, an EEPROM 402, a timer 404, and a program ROM 401 via a data bus 451 and an address bus 452.
The communication port 405, the parallel I / O 406, and the R, G, and B input image memory 407 are connected. The input image memory 40
7 is prepared for each of R, G, and B. Also, CR
The AGDC 410 controlling the display of the T display 300 is
AGDC address bus 462 and AGDC data bus 461
, A kanji ROM 412, a working RAM 413, and a VRAM 411. The VRAM 411
Are prepared for each of R, G, B, C1, and C2.

The program for the CPU 400 is stored in the program ROM 401. The EEPROM 402 is used to store parameters for adjusting the variation of each device. The RAM 403 is used for storing various variables necessary for executing the above-mentioned program. Timer 40
Reference numeral 4 is used to generate a predetermined timer value from a clock signal according to a setting from the CPU 400. Communication port
Reference numeral 405 is used for transmitting and receiving information to and from an external device. The parallel I / O 406 is used for outputting a control signal for controlling a peripheral device and for inputting a status signal of the peripheral device. The input image memory 407 is used to store an image read by the one-dimensional color CCD 800.

The AGDC 410 controls the display on the CRT display 300 by controlling the contents of the VRAM 411. The CPU address bus 452 and the AGDC address bus 462, and the CPU data bus 451 and the AGDC
The data bus 461 is connected to the data bus 461 via the AGDC 410, whereby the input image memory 407 and the VRAM 411 are connected.
Transfer between devices is possible.

As shown in FIG. 8, the parallel I / O 406 drives a scanner motor for moving the illumination unit 550, the first mirror 501, the second mirror 502, and the third mirror 503 in the sub-scanning direction. Circuit, filter driving circuit for moving filter block 570 in accordance with operation mode, carrier 70
0, a film carrier detection mechanism for detecting the type (size) of the film, a drive circuit of a cooling fan for cooling the inside of the film scanner device 30, and an illumination unit.
A lamp control circuit for controlling on / off of a halogen lamp 550 and a lighting voltage, a lamp unit for detecting a type of a mounted lamp, and an imaging lens 520
Operation panel 350 provided with a lens drive unit for moving the camera according to the film size, a tab key 352, etc., a track ball 351, an internal panel 360, a power-on signal, and the like. An image processing circuit for transmitting and receiving image data, transmitting and receiving image data, a second and third mirrors 502 and 503 for changing the imaging magnification according to the size of the film, and a mirror for moving the lens back mirror section. It is connected to the drive unit.

[2-2] Outline of Image Data Processing FIG. 9 shows a process of processing image data read by the color CCD 800. The one-dimensional color CCD 800 decomposes the transmitted light from the film 790 into B, G, and R, and reads it in line units. Hereinafter, the B signal will be described as an example, and the description of the G signal and the R signal will be omitted in principle.

The B signal output from the CCD 800 is amplified by a video amplifier. The amplification factor is set from the data bus via the D / A converter so that the MAX value becomes a predetermined value. That is, at the MAX level, it is possible to correct a difference in BGR sensitivity due to a difference in film type and to correct a difference in exposure condition. The B signal output from the video amplifier is A / D converted. At this time, the shading correction is performed with reference to the reference data of the shading correction memory. The B data after the shading correction is RG
The data is input to the B position adjusting unit to correct the timing difference between the G data and the R data. The shift is color C
This is caused by the interval between the B, G, and R lines of the CD 800.

The B data output from the RGB interposition unit is subjected to a normalization process by a look-up table LUT. The data of the look-up table LUT is
As will be described later, rewritable from the bus side of the CPU 400. In the look-up table LUT, a process for keeping the amplitude of output data constant with respect to input data is executed. That is, the look-up table LU is controlled so that the output amplitude is constant at the MAX value and the MIN value of each of the RGB signals.
The contents of T are changed. The above look-up table L
With the processing in the UT and the processing in the video amplifier, it is possible to perform correction based on differences in film type and exposure conditions without using a special memory. Note that these correction processes are not operated in the case of a positive film. Even in the case of a negative film, if the balance of the MAX value and the MIN value of B, G, and R exceeds a predetermined range, it is prohibited by software.

The B data output from the look-up table LUT is input to a .gamma. Correction / negative / positive reversal processing section, and the data is corrected by a negative / positive film and a .gamma. Is given. The output of the .gamma. correction / negative / positive reversal processing section is branched into a route to the printer and a route to the CRT display 300.

The output to the printer is input to the color adjustment / color correction section, where the feedback of the color adjustment processing using the CRT display 300 and the output image data of the apparatus are performed.
A process is performed to match the data with the data on the digital color copying machine 900 side. The output of the color adjustment / color correction unit is input to a scaling / moving unit, which performs scaling / movement of image data in the main scanning direction.

The output to the CRT display 300 side is C
Input to the memory for display on the RT. The output from the memory is input to a color adjustment / color correction unit, where the feedback of the color adjustment processing using the CRT display 300 and the output image data of the present apparatus are output to the CRT display 300.
A process for adjusting to the data on the side is performed. On the CRT display 300 side, a memory for characters used when setting the mode is provided. The character data
The data is synthesized with the image data in the plane mix unit, D / A converted, and output to the CRT display 300 as analog RGB signals.

[3] Control of Film Scanner Next, the processing executed by the CPU 400 will be described. [3-1] Main Routine: FIG. 10 FIG. 10 shows the main routine of the processing executed by the CPU 400.

In the CPU 400, for example, the processing is started when the power is turned on. First, the system is initialized, such as clearing the RAM 403 and resetting peripheral devices (S
11). Next, an initial screen for setting a copy mode is displayed on the CRT display 300 (S13). Further, shading correction is performed to initialize the CCD 800 (S15). With the above processing, preparation for reading an image with the film scanner device is completed.

After the above processing, the processing of steps S21 to S37 is executed. If the scan flag is set to 1 (S21: YES), the image reading control is executed (S2
3) The image reading control includes various processes necessary for reading an image, for example, a process for controlling sub-scanning and the like. If the scan flag is reset to 0
(S21: NO), cursor input processing is executed (S25). Car
In the cursor input process, the setting and movement of the trimming area and the setting of the copy mode are performed in accordance with the position of the cursor moved by the track ball 351 and the operation of the tab key 352.

Further, irrespective of the scan flag, the film carrier processing (S31), the panel key input processing (S33),
Communication processing with the printer (S35) and AF processing (S37) are executed. In the film carrier processing (S31), the detection of the film size and the like are performed in accordance with the setting / pulling-out of the film carrier 700. Panel key input processing (S33)
Then, as will be described later, input operations of various keys shown in FIG. 4 are accepted. Further, in response to the operation of the image input key 353 without the film carrier 700, display processing of the light source color and the like are performed. In the communication process with the printer (S35), communication with the digital color copying machine 900 is performed.
For example, the result of the copy mode setting on the CRT display 300, the progress of the copy, and the like are communicated. AF processing
In (S37), the lens 520 is automatically set to the focal position.

[3-2] Panel Key Input Process: FIG. 11 Next, the panel key input process (S33) will be described with reference to FIG. Panel key input processing is performed using various keys shown in FIG.
This is a process corresponding to the input operation.

First, the scan flag is determined in step S101. The scan flag is a flag that is set to 1 in response to the operation of the image input key 353 or the print key 355 (see S123 and S133). In step S101,
If the scan flag is set to 1 (S101: YES) and an input from the stop key 354 is detected in this state (S151: YES), the scan flag is reset to 0.
(S153). That is, the scan is stopped. Also step
If the scan flag has been reset to 0 in S101 (S101: NO), the image input key 353, print key 355,
Operation input of the internal panel key group 360 is awaited (S111).
If the stop key 354 is operated during this standby, the operation input is ignored.

When an input is made from the image input key 353 during a standby state in which the scan flag is reset to 0, first, it is determined whether or not the film carrier 700 is in the trolley 750. (S121). As a result, if the film carrier 700 is present (S121: YES), the scan flag is set to 1 (S123), and the image input mode is set as the scan mode (S125). Thereby, the image of the film of the film carrier 700 is read,
It is displayed on the CRT display 300. Further, other image input key processing (S127) such as displaying a message on the screen is executed.

On the other hand, when it is determined that the film carrier 700 is not in the trolley 750 in step S121 when the input from the image input key 353 is performed (S121: NO).
Then, the light source color simulation processing (S129) is executed.
The light source color simulation process (S129) is a process for causing the image area 301 of the CRT display 300 to emit light in a plain color. The details will be described later.

If an input is made from the print key 355 during a standby state in which the scan flag is reset to 0, first, the film carrier 700 is moved to the trolley 75.
It is determined whether it is within 0 (S131). As a result, if the film carrier 700 is present (S131: YES), the scan flag is set to 1 (S133), and the image output mode is set as the scan mode (S135). As a result, the image of the film on the film carrier 700 is read and output to the digital color copying machine (printer) 900 side. Further, other print key processing (S137) such as displaying a message on the screen of the CRT display 300 is executed. If the input from the print key 355 is made and it is determined in step S131 that the film carrier 700 is not in the trolley 750 (S131: NO), the input is ignored.

If an input is made from any key on the internal panel 360 during standby with the scan flag reset to 0, processing corresponding to that key is executed. (S141).

[3-3] Light source color simulation processing: FIG.
2 to 13 Next, the light source color simulation processing (S129) will be described with reference to FIGS. In the light source color simulation processing, the image area 301 of the CRT display (monitor) 300 is displayed (light-emitting) in a solid light source color to be adjusted.

First, the image area 301 is displayed in plain white (S201). Here, the white display area is the image area 301
May be a whole or a part. As the white color to be displayed, a display in which the maximum voltage is applied as an analog voltage of the monitor 300 may be used.
It is characterized in that the display image of 0 and the output image to the printer 900 are substantially the same. For this reason, the printer 90
The same white color as the paper set to 0 is desirable. For this purpose, the color of the paper set in the printer 900 may be detected, and the monitor 300 may be colored based on the detection result. Set. For this reason, here, it is assumed that the paper is colored.

The color of the paper is represented by Y = 86.4, x = Y in the CIE Yxy color system (standard of the International Institute of Illumination).
0.273, y = 0.295. The data for producing a white color greatly differs depending on the setting conditions of the monitor 300, but here, experimentally, Rw = 19
4, Gw = 251, Bw = 255, and A
The display of the monitor 300 is controlled by the GDC 410.

In step S203, a light source color adjustment menu is displayed as shown in FIG. As can be seen from the comparison with the initial screen display of FIG. 3, switch buttons (switch areas, the same applies hereinafter) for increasing / decreasing R, G, and B of the light source color, cancel switch button, end switch button, output setting A switch button and the like are displayed. In the message area 302, a message stating "the light source color can be adjusted" is displayed.
Message is displayed.

In step S211, it is determined which of the various switch buttons has been selected.

For example, in step S 211, the light source color R · G
When one of the switch buttons for adjusting B is selected, R, G, and G corresponding to the switch button are selected.
The B data is increased or decreased (S251, S261, S271, S281), and the result is set in the plane of the VRAM (S253, S263, S27).
3, S283). The image area 301 of the monitor 300 emits light with the value adjusted in this manner. Thereafter, the flow returns to step S211 again. The D + and D- switch buttons are switches for increasing or decreasing the R, G, and B data at a time.
• Each is set on the GB plane.

FIG. 15 is a Lab chromaticity diagram showing the correspondence between the adjustment of R, G, and B and the emission color of the image area 301 of the monitor 300 that emits light based on the adjustment. In the figure, the intersection of the six lines is the emission color when a voltage corresponding to each of the R, G, and B data of 255 is applied to the monitor 300. This is L
As is clear from being close to the origin of the ab chromaticity diagram, the color is white. When G and B are reduced from this white display state while keeping R = 255, finally, R = 255, G =
0, B = 0, and reaches point R in the figure. Similarly, B =
When G and R are reduced at 255, B = 255, G =
0, R = 0, and reaches the point B in the figure. When B and R are decreased while G = 255, G = 255, B = 0, R = 0
And reaches the point G in the figure. Also, R = 255, G =
When B is decreased while keeping 255, the point finally reaches the Y point. When G is decreased while keeping R = 255 and B = 255, the point reaches the M point. Similarly, G = 255, B = 2
If R is decreased with 55, the point C is reached.
When the D switch button is adjusted, the L component (brightness) on the Lab chromaticity diagram changes, so that no change appears on the graph. As described above, by adjusting the R, G, and B switch buttons, the RYGC on the Lab chromaticity diagram is adjusted.
The color within the range surrounded by the BM is reproduced on the monitor 300.

On the other hand, if the output setting switch button is selected in step S211, an image in which the light emission color displayed by the adjustment data at that time is used as the light source color is reproduced on paper. Is performed. First, the set data of the look-up table LUT is calculated based on the R, G, and B data set at that time.
(S241), and the calculation result is stored in each lookup table LUT.
Is set to (S243). As a result, when outputting image data to the printer 900 side, the data of the above light source color is applied to the image data read by the CCD 800,
As a result, an image in which the light source color is added is reproduced on the paper.

FIG. 16 shows the relationship between the input and output of each of the RGB look-up table LUTs and the above-described adjustment of R, G, and B. Here, each of the look-up tables is shown. The LUT is luminance data. The larger the data, the higher the luminance and the lower the density of the image on the paper. That is, as the adjustment amount of the light source color adjustment value increases, the maximum value of the luminance data decreases, and the minimum density (base color) of the image on the paper increases. In this way, the adjustment result of the light source color adjustment value is generated as the base color of the sheet output by the printer 900.

In the present apparatus, as described above, the light source color is added to the reproduced image on paper only after the output setting switch button is selected. In other words, when the output setting switch button is not selected, the above-described adjustment of RGB is limited to the simulation of the light source color on the monitor 300.

On the other hand, if the cancel switch button is selected in step S211, the light source color adjustment menu is not displayed (S231), and the look-up table LUT set in step S243 is reset. (S233), and
The screen is displayed in black (S235), and the process ends.

If the end switch button is selected in step S211, the light source color adjustment menu is not displayed (S221), and the process is terminated. When a switch button other than the above is selected, a process corresponding to the switch button is executed (S291).

[0059]

According to the present invention, a plain light source of a specific color which is uniformly illuminated can be obtained by a simple operation.
Further, when this surface light source is used as a backlight, a plurality of frames of film images can be checked at a time and in a comfortable posture. For this reason, the work efficiency of film image confirmation is good.

Further, when the color of the surface light source is configured to be adjustable, the positive film on which the building, the costume, the interior, etc. are shown is held in front of the display, so that the color of the scene of the building can be changed. Simulation, color simulation of costumes or interiors under various indoor lighting can be easily performed.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a system configured by an embodiment apparatus and a copying machine.

FIG. 2 is an explanatory diagram of an outline of an embodiment apparatus.

FIG. 3 is an explanatory diagram showing a display example of a CRT display of the apparatus of the embodiment.

FIG. 4 is an explanatory view of an operation panel of the embodiment device.

FIG. 5 is an explanatory diagram of a configuration of an optical system of the embodiment device.

FIG. 6 is an explanatory diagram showing how a carrier is set on a minecart.

FIG. 7 is a block diagram illustrating a configuration of a control circuit of the device according to the embodiment.

FIG. 8 is a block diagram showing a connection relationship between a parallel I / O of the control circuit and peripheral devices.

FIG. 9 is a functional block diagram of an image processing circuit of the embodiment device.

FIG. 10 is a flowchart showing a main routine of processing by a control CPU of the embodiment device.

FIG. 11 is a flowchart showing a process in step S33 of FIG. 10;
It is a chart.

FIG. 12 is a flowchart showing a part of the process in step S129 of FIG. 11;

FIG. 13 is a flowchart showing the rest of the process in step S129 of FIG. 11;

FIG. 14 is an explanatory diagram illustrating a display example of a light source color menu on a CRT display of the example device.

FIG. 15 is a characteristic diagram showing a Lab chromaticity diagram.

FIG. 16 is an explanatory diagram showing the relationship between the input and output of each look-up table and the presence / absence of data adjustment.

[Explanation of symbols]

 30 Film Scanner 300 CRT Display (Monitor) 301 Image Area 302 Message Area 350 Operation Panel 351 Track Ball 352 Tab Key 353 Image Input Key 354 Stop Key 355 Print (Copy) Key 360 Internal Panel 700 Film Carrier 750 Dolly 900 Digital Color Copier

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-296463 (JP, A) JP-A-5-168024 (JP, A) JP-A-62-257279 (JP, A) JP-A-62-257279 293889 (JP, A) JP-A-62-293890 (JP, A) JP-A-1-298339 (JP, A) JP-A-1-63262 (JP, U) JP-A-1-63265 (JP, U) (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 1/00-1/00 108 H04N 1/04-1/207

Claims (4)

(57) [Claims] 1. A filter set at a predetermined reading position.
The system reads the transmitted image of the system and converts it into an electrical signal.
Display the film image on the display based on the
In the image reading apparatus shown in the figure, a light source color input means for instructing display of a light source color , and a display corresponding to an operation input from the light source color input means.
Light source color display mode using A as a light source for illuminating the film
A mode control means for setting a mode, and when a light source color display mode is set, a predetermined mode of the display is set.
And a drive control unit for performing surface emission in a specific color of a plain color in the area of (i) . 2. An apparatus according to claim 1, further comprising an adjustment input means for adjusting the plain specific color.
The mode control means includes a light source color display mode.
The specific color corresponding to the operation input from the adjustment input means.
An image reading device for setting an adjustment mode for adjusting the image reading. 3. The image reading apparatus according to claim 1, wherein the specific color is white. 4. An image reading apparatus which reads a film document at a predetermined reading position, generates image data, and displays the image data on a display, comprising: detecting means for detecting the presence or absence of the film document at the reading position; Input means for instructing reading of a document, and when a film document is not present at the read position when reading of the film document is instructed by the input means, a predetermined area of the display is displayed in a plain specific color. An image reading apparatus, comprising: drive control means for performing surface emission.