JPH08214209A - Film picture inputting device - Google Patents

Abstract

PURPOSE: To automatically display a picture inputted from a film on a TV monitor at the same aspect ratio as that of printing by simple constitution of a mono-focus optical system. CONSTITUTION: In a film picture inputting device for displaying a picture formed on a film on the screen of a TV monitor, an optical picture on a developed silver salt film is converted into an electric signal by a line sensor 3 and the attribute of the optical picture is read out by an aspect ratio reading part 1. This electric signal is converted into an optimized video signal by a TV signal conversion part 2 based upon the read attribute.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film image input device for displaying an image recorded on a film on a TV monitor.

[0002]

2. Description of the Related Art Conventionally, various proposals have been made for a film image input device for picking up an image recorded on a photographic film and outputting an image signal of the image to a TV monitor. For example, according to Japanese Patent Laid-Open No. 5-30419, an image signal obtained by picking up an image of a photographic film and a frame signal indicating a frame having the same aspect ratio as that at the time of photographic printing generated by a frame generation unit are imaged. By synthesizing by the synthesizing means and outputting the synthesized signal to the TV monitor,
A method has been proposed in which a monitor image can be viewed in the same image as an actual photographic print.

[0003]

However, in the method disclosed in Japanese Unexamined Patent Publication (Kokai) No. 5-30419, the alignment of the image with respect to the frame is performed by an optical zoom lens or film movement (x, y directions). The device has a complicated and large-scale structure.

Further, it is impossible to automatically adjust the screen input from the film to the aspect ratio such as service size or panorama size, which is inconvenient.

The present invention has been made in view of the above problems, and an image input from a film is automatically TV-monitored by a simple structure of a single-focus optical system with the same aspect ratio as when printing. It is an object of the present invention to provide a film image input device capable of displaying on a screen.

[0006]

In order to achieve the above object, a film image input device according to claim 1 is a film image input device for displaying an image on a film on a screen of a TV monitor device. A reading means for converting an optical image of the developed silver salt film into an electric signal, and a converting means for converting the read electric signal into an optimized video signal based on the attribute of the optical image. It is characterized by having.

Further, in the film image input device according to the present invention, the attribute of the optical image is aspect ratio information at the time of print processing or top-bottom information of the image.

Further, in the film image input apparatus according to a third aspect of the present invention, the optimized video signal has an image aspect ratio on the screen of the TV monitor apparatus based on aspect ratio information at the time of print processing. It is characterized by setting.

[0009]

The film image input device of the present invention is a film image input device for displaying an image on a film on a screen of a TV monitor device, and an optical image of a developed silver salt film is electrically read by a reading means. The converted electrical signal is converted into a signal, and the read electrical signal is converted into an optimized video signal by the conversion means based on the attribute of the optical image.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First, a conceptual configuration of the film image input device according to the present invention will be described. FIG. 1 is a block diagram showing a conceptual configuration of a film image input device according to the present invention.

The asspect ratio reading unit 1 automatically reads the service ratio, high-definition size, panoramic size (hereinafter referred to as service, high-definition, by reading the asspect ratio information recorded on a film (not shown).
Each size such as panorama) is discriminated, and this discrimination information is output to the TV signal conversion unit 2.

The line sensor 3 reads image data in a range corresponding to each size of the discrimination information from the film and outputs the image data to the TV signal conversion unit 2 via the image input unit 4. This TV signal conversion unit 2 has the same dimension in the short side direction regardless of size.
Convert to signal. The film used in this example is a film having an information recording section including a magnetic recording section and an optical recording section.

FIG. 2 is a block diagram showing the conceptual construction of another film image input apparatus according to the present invention. The aspect ratio setting unit 5 outputs the aspect ratio information set by the user to the TV signal conversion unit 2. Line sensor 3
Reads image data in a range corresponding to each size such as service and panorama from a film (not shown) according to the aspect ratio information, and transfers the image data to the TV signal conversion unit 2 via the image input unit 4. Output. The TV signal converting unit 2 converts the TV signal into a TV signal with the same dimension in the short side direction regardless of the size.

Detailed embodiments of the present invention having the above characteristics will be described below. FIG. 3 is a block diagram showing the configuration of the film image input apparatus according to the embodiment of the present invention.

In the figure, RISC (REDUCED INS
TRUCTION SET COMPUTER (RISC) type microcomputer 1
1 includes a line sensor 12, a clamp circuit 13, a sample hold circuit 14, an amplifier 15, and an analog / analog circuit.
A digital conversion (hereinafter referred to as A / D conversion) circuit 16;
DMA (DIRECT MEMORY ACCESS; DMA) circuit 17
Via the image memory 18, the latch circuit 19, and the A / D
The conversion circuit 20 and the encoder 21 are connected.

Further, in the RISC type microcomputer 11, a light source section 23 via a driver 22 for illumination, a film feeding motor (M) 25 via a motor driver 24, and a photo reflector via a perforation detection circuit 26. (PR) 27 and magnetic head 2 via magnetic circuit 28
9, a display unit 30, and a group of operation switches (hereinafter, switches are referred to as SW) group 31 are connected.

In addition, R (red) of the line sensor 12,
The G (green) and B (blue) signal lines are connected to the clamp circuit 1 described above.
3, sample and hold circuit 14, amplifier 15, A / D conversion circuit 16, image memory 18, latch circuit 19, A / D
The conversion circuit 20 is connected in series to the encoder 21. Further, the R, G, B signal lines connecting the A / D conversion circuit 16 and the memory 18 are connected to the RISC type microcomputer 11, respectively.

The overall control of the film image input apparatus is a high-speed RIS that is a controller.
It is performed by the C-type microcomputer 11. Although the controller may be configured by a custom gate array, the use of the RISC type microcomputer 11 can reduce the number of ICs (integrated circuits) to be used and simplify the configuration. Further, the RISC microcomputer 11 may be used instead of the RISC microcomputer 11 as long as the microcomputer operates at high speed.

In the block diagram shown in FIG. 3, if there is a RISC type microcomputer that includes each of the constituent blocks, the number of constituent blocks can be reduced by incorporating the constituent block portion into the RISC type microcomputer. Needless to say.

The line sensor 12 as an image input unit is of the R, G, B output type. They include a sensor whose output line is divided into three lines of R, G, and B, or one line.
, Or two lines, one of which is dedicated to the G signal and the other of which outputs the R and B signals alternately (for example, Matsushita Electric Industrial Co., Ltd. ) Line sensor MN367
1A) is used. Note that no matter which type of line sensor described above is applied, only the address and timing stored in the image memory 18 are different.

Next, the operation of the film image input apparatus of this embodiment will be described. First, the flow of signals and the configuration of the apparatus when processing the video signal output to a home TV monitor by the film image input apparatus will be described.

The film from which the image data is captured is illuminated by the light source section 23 via the illumination driver 22 in accordance with the instruction from the RISC type microcomputer 11. A fluorescent lamp, a halogen lamp, a light emitting diode (hereinafter referred to as an LED), or the like can be applied to the light source unit 23.

The image data for each line of the illuminated film is used as the line sensor 12 constituting the image input section.
Is input to The R, G, and B signals output from the line sensor 12 pass through a clamp circuit 13, a sample hold circuit 14, an amplifier 15 that amplifies the signal, and an A / D conversion circuit 16 that converts an analog signal into a digital signal. The analog signals of the R, G and B signals are converted into digital signals and stored as image data in the image memory 18 which is a storage means.

The image data stored in the image memory 18 is sequentially read by the DMA circuit 17 and latched by the latch circuit 19 for each pixel. This latch circuit 1
The image data latched in 9 is converted from a digital signal to an analog signal by a D / A conversion circuit 20 for converting a digital signal into an analog signal, and then converted into a video signal by an encoder 21 and output.

If a multi-port video RAM is used as the image memory 18, the DMA circuit 17 is not particularly necessary, and an image for one line is displayed from the RISC type microcomputer 11 to the SAM section (data register) of the multi-port memory. It is possible to synchronize with the video signal simply by giving an instruction to transfer.

The video signal can be output in any signal format of a composite signal or an R, G, B signal for video monitor. The image memory 18 has a capacity of 200,000 to 400,000 pixels because it is used for the output of a normal home TV monitor.

Further, in this film image input device,
When the image data of the film is taken in by the line sensor 12, it is necessary to feed the film by a predetermined amount each time a unit line is read. A certain amount of this film can be fed by R
A film feeding motor (M) 25 is fed through a motor driver 24 controlled by the ISC type microcomputer 11.
Is driven. Here, a stepping motor is applied to the film feeding motor (M) 25. It is technically equivalent to drive the line sensor 12 itself by providing a drive motor for driving the line sensor 12 separately from the film feeding motor (M) 25. Needless to say, the control microcomputer for driving in this case may be a normal microcomputer other than the RISC type microcomputer 11.

At the time of feeding the above-mentioned film, a photo reflector (hereinafter,
The film feeding motor (M) 25 is continuously rotated while feeding the film while confirming the number of film frames and the position of the film by means of PR. At this time, when the image is input by the line sensor 12, the film feeding is
The film feeding motor (M) 25 is step-driven according to the reading pitch of the line sensor 12.

Photographing information magnetically recorded on the film, such as aspect ratio and top-bottom information, is read by the magnetic head 29 and taken into the RISC microcomputer 11 via the magnetic circuit 28. Further, when the photographing information is written on the film as magnetic data, it is also written via the magnetic head 29. For reading,
It goes without saying that the write magnetic heads may be provided independently of each other.

Further, the number of film frames during capturing of the image data from the film, the photographing information read from the film, and the like are displayed on the display unit 30 including a liquid crystal display device (LCD).

Further, the operation switch (SW) group 31 is used to instruct each operation to the film image input apparatus. Next, a signal flow when outputting an image signal of high resolution digital RGB data having a resolution of 1 million pixels or more per screen for a personal computer (hereinafter referred to as a personal computer) or the like will be described.

Normally, in an apparatus in which all of the above-mentioned image data of 1 million pixels or more is taken into the image memory 18, a very expensive large-capacity image memory 1 for 1 million pixels or more is used.
8 is required, and it is difficult to use as a consumer device in terms of cost.

Therefore, in the present film image input device, when outputting an image signal of high resolution digital RGB data, the line sensor 12 does not need the above-mentioned large capacity memory of 1 million pixels or more. The RISC type microcomputer 11 converts the image data into an image signal of digital RGB data and outputs the image signal.

That is, the R, G, B signals output from the line sensor 12 are the clamp circuit 13, the sample hold circuit 14, the amplifier 15, and the A / D conversion circuit 1.
It is input to the RISC type microcomputer 11 via 6 and this RI
With the SC type microcomputer 11, the SCSI (SMALL
COMPUTER SYSTEM INTERFACE (SCSI), which can be output to a SCSI signal that can be output. By performing the processing as described above, the large-capacity memory required for high resolution is not necessary for the image memory 18, and the required memory capacity can be reduced to 1/2 or less.

At this time, the line sensor 12 performs integral reading of the image data of the film line by line, that is, the film feeding motor (M) 25 is driven by one step to drive the film by one line. , Read the next line. Therefore, the image data for one line may be stored in the image memory 18 and then converted into a SCSI signal.

When outputting an image signal to a personal computer or the like, it is not necessary to connect the image signal to a home TV monitor, so the image memory 18 stores the SCS.
There is no problem even if it is used as the I buffer memory.

Although the output signal of the image signal of the digital RGB data is described as the SCSI output, it is GPI.
B (GENERAL-PURPOSE INTERFACE BUS, IEEE / IE
C) and RS-232C (RS-232C INTERFACE, E
IA / JIS) or other output signal formats, the principle of data conversion operation is the same.

FIG. 4 is a perspective view showing the arrangement of mechanisms around the film feeding section of the film image input apparatus of this embodiment. As shown in the figure, the film 42 sent out from the cartridge 41 is driven by the film feeding motor (M) 25 through the switching drive system 43 and wound on the spool 44. Perforations 42a and 42b are provided on the film 42 above and below the screen 42c of the film 42 as shown in FIG.

The feeding position of the film 42 is PR27.
At the above-mentioned perforations 42a,
It is determined by detecting the position of 42b. Needless to say, the PR 27 may be replaced by a photo interrupter (PI) having light emitting and light receiving sensors on both sides of the film 42.

The light from the light source section 23 passes through the film 42 and the optical system 45 composed of a lens system to form a linear image on the image forming surface of the line sensor 12. If necessary, an optical system or a diffusion plate may be inserted between the light source unit 23 and the film 42. Further, the magnetic head 29 is in contact with the magnetic recording portion 42d of the film 42 and reads the photographing information recorded on the magnetic recording portion 42d.

When the film 42 is rewound, the switching drive system 43 is switched, and the cartridge shaft 4 of the cartridge 41 is rotated.
This is performed by rotating 1a. FIG. 5A is a layout diagram showing the positional relationship between the film, the optical system, and the magnetic head in the film feeding direction.

As shown in the figure, the magnetic head 29 is arranged so that it is positioned on the side of the cartridge 41 by about one frame with respect to the reading position on the film 42 of the line sensor 12. Further, the PR 27 that detects perforations may detect other perforation positions as long as the reading start position of the line sensor 12 can be limited.

The reason why the above-mentioned positional relationship in the film feeding direction is adopted is that when the image is read by the line sensor 12, it is inevitably a low speed and a step operation, so that a certain speed and a constant speed are required. This is because the magnetic reading becomes difficult. With the above positional relationship, when the film 42 reaches the reading start position of the line sensor 12, the magnetic reading of the corresponding frame can be already finished.

Therefore, by moving the film 42 continuously at high speed up to the reading start position of the line sensor 12, the film is recorded on the magnetic recording portion 42d of the frame before the line sensor 12 starts reading an image. It is possible to read the recorded shooting information.

In the film image input apparatus of the present embodiment, the output format of the image data, for example, whether to output a home video signal or a high resolution digital RGB image data signal, is adjusted according to the output state. The optical system 4 to adjust the reading condition of the image data on the film.
5 is moved to adjust the focus state on the line sensor 12, respectively.

That is, in the state of the positional relationship shown in FIG. 5A, the high resolution reading is performed and the digital RG is read.
The positional relationship when outputting the B data (personal computer output signal) is shown, and the state where the optical system 45 is positioned at the RGB position 45A which is just in focus with respect to the line sensor 12 is shown.

FIG. 5B is a diagram showing a positional relationship when the above video signal is output. As shown in FIG.
5 is slightly shifted from the RGB position 45A of the just focus and is positioned at the video position 45B. By shifting the focus in this way, no trouble occurs even when the line sensor 12 reads the film 42 at a relatively coarse pitch at high speed.

It is of course possible to skip the line sensor 12 while keeping the just focus state shown in FIG. 5 (a). In this case, the image becomes a little stepped, but if it is within the allowable range, skip reading for video signal output may be performed in the state shown in FIG.

FIG. 6 is a view showing an example of a film containing the aspect ratio information used in this embodiment. This film is a film having a magnetic recording portion as disclosed in Japanese Patent Application Laid-Open No. 6-82905, and the magnetic recording portion 42d has an aspect ratio, that is, service, high-definition, panorama, etc. as data. Will be recorded. In this case, photographing is performed based on the HDTV 61H, and the service 61S and the panorama 61P shown in FIG. 6 are printed based on the magnetic information recorded in the magnetic recording unit 42d.

The information on the aspect ratio may be other than the magnetic information described above.
The latent image data may be imprinted on the portion corresponding to the second magnetic recording portion 42d. In this case, if there is 2-bit information, the aspect ratio can be determined.

FIG. 7 shows an example of the currently used 135 standard film used in this embodiment. As shown in the figure, the film 71 is a photograph of a service 71S and a panorama 71P.

In this case, the service 71S and the panorama 7
There is no data to detect the aspect ratio, only 1P switching. However, in the case of the panorama 71P, it can be determined that the outside of the image frame is not exposed.

FIG. 8 shows the film 42 and the line sensor 12.
It is the figure which showed the positional relationship with. The image of the film 42 passes through an optical system 45 including a lens and is formed on the line sensor 12 including a CCD. CCD during panorama
The image data formed in the range indicated by a above is used, and the image data formed in the range indicated by b is used during service or high-definition. At the time of panorama, compared with the time of service or high-definition, the data of about 2/3 range will be read.

Next, the display range in the horizontal scanning direction when displaying on the TV monitor is determined by how many pixels are divided in the image memory 18 and the display time "1 / f" for one pixel. . Here, f is a basic clock for image processing.

FIG. 9 is a diagram showing an example in which the short side direction of each aspect ratio is displayed as the same size in this embodiment. As shown in the figure, a horizontal panorama 91P, a high-definition 91H, and a service 9 are displayed in the TV monitor 91.
1S is displayed or the vertical panorama 92P,
Hi-vision 91H and service 91S are displayed. At this time, as shown in the figure, the number of pixels in the short side direction of the aspect ratio is the maximum panorama 91P, which must be displayed.
It is necessary to basically consider the display size at 92P.

Next, the scan pitch of the CCD as the line sensor 12 (hereinafter referred to as CCD scan pitch) will be described. In this embodiment, the film is to be fed (scanned), but since it is the same regardless of which one is relatively scanned, it will be described as a CCD scan.

The reading pitch of the line sensor 12 is set to PL
Then, when outputting to a personal computer or the like, naturally, the aspect ratio of 1: 1 is ideal, so the scan pitch PS is PS = PL (1). Therefore, the scan pitch of the CCD is based on the equation (1). However, when displaying on a TV monitor, it depends on the clock "1 / f" for one pixel, and the image is distorted when scanning with PS = PL shown in the equation (1).

Here, the effective display time of one scanning line is Th
(Th ≈ 53.6 μs in the NTSC system, Th ≈ 53 μs in the PAL system), the number of effective scanning lines is L (L = 525 lines in the NTSC system, L = 625 lines in the PAL system), and one pixel corresponding to the scanning line pitch. If the display time is Pt,
Since the aspect ratio of the TV monitor is 3: 4 for both the PAL system and the NTSC system, the relationship of Pt = Th / (4/3) × L (2) holds.

Here, assuming that the screen display basic clock is f, the scan pitch Sp for one pixel when the screen distortion is eliminated on the TV monitor is Sp = (1 / f) ÷ Pt = (4 / 3) × (1 / fTh L) (3)

For example, when 512 memories for one scan are used and f = 14.318 MHz is used, 1024
Assuming that a CCD of pixels is used and considering the case of NTSC display, Pt = 81.38 ns (4) The effective screen display time PtN is PtN = 512 × (1 / f) = 35.84 μs ... (5) Therefore, the aspect ratio of the panorama is 1: 3,
The required number LN of scanning lines is LN = (PtN / Pt) × (1/3) = 146 (6)

FIG. 9 shows an example in which the above example is displayed on the TV monitor. Here, if the number of sensors in the range of a shown in FIG. 8 is adjusted to a multiple of the scanning line number LN, it becomes easy to display in the horizontal display. If the number of sensors in the range of a = LN × 4
= 548 pixels and the number of sensors in the range of b = 3/2
If a = 890 pixels, a CCD of 1024 pixels can be effectively used.

Although an example of a CCD of 1024 pixels is given as an example, a CCD of 2048 pixels or other number of pixels is used.
It goes without saying that the idea is the same when using.
At this time, considering the scan pitch SP, the CCD inputs an image at an average of 4 pixels or at a pitch of 4 pixels,
The scan pitch Sp can be calculated from the equation (3) as follows: SP = (4/3) × (1 / fTh L) = 0.858 (7) From 0.87 × 4 = 3.5 pixel average for four pixels, Alternatively, it may be read at a 3.5 pixel pitch. In the case of service and high-definition, the scanning lines on the TV monitor display are the same as 146, so every 6 pixels of the CCD,
The scan pitch SP is 0.858 × 6≉5.2.

In the above, the case of the horizontal display in which the length direction is displayed horizontally on the TV monitor has been described, but since film may be photographed by holding the camera vertically,
As shown in FIG. 9, the image read from the film is
A case of vertical display in which the display is rotated by 0 ° and the length direction is displayed vertically is also conceivable. The operation when controlling with a RISC type microcomputer will be described below. The following operation is for the NTSC system.

10 and 11 are flowcharts showing the processing of the RISC type microcomputer 11 as the operation of the film image input apparatus of this embodiment. When the image input from the film 42 is started (step S1), first, the RIS
The C-type microcomputer 11 determines whether the image 42c is a panorama (step S2). Regarding this determination, when the photographing information is recorded in the magnetic recording unit 42d, the photographing information is followed, and when the photographing information is not recorded because the magnetic recording unit 42d is not included, the operation SW group 31 is used. Follow the input of. Here, in the case of panorama, the read lead pitch RP is set to 4 (step S3), while in the case of other than panorama (high definition, service), the read pitch RP is set to 6 (step S4). This is the value when the number of sensors in the range of a = 548 and the number of sensors in the range of b = 890, as described above,
If the settings are different, the lead pitch RP should be set accordingly.

Next, the actual sensor scan pitch SS is obtained by multiplying the lead pitch RP and the scan pitch SP for one pixel. Therefore, the sensor scan pitch SS is the scan pitch in units of the pixel size of the line sensor 12 (step S5).

Next, the RISC microcomputer 11 determines the screen direction (step S6). The magnetic recording unit 42
If the shooting information and the like are recorded in d, it can be determined from the top-and-bottom information and the like, and if the shooting information is not recorded because the magnetic recording unit 42d is not provided, the operation SW group 31 It judges according to the input from. Here, if the screen direction is vertical, the process proceeds to step S8, and the lead pitch RP and the sensor scan pitch SS are adjusted according to the TV monitor.
Is changed and the image data is stored in the image memory 18 by 90 ° conversion, that is, the memory address is converted by 90 ° and stored. Here, the description of the storage method in the image memory 18 is omitted, and the line sensor 1 including a CCD or the like is omitted.
Only the method of reading image data according to 2 will be described.

FIG. 12 is a flow chart showing the process of the "read skip pitch" subroutine in step S8 when the screen direction is vertical. Since the screen rotates 90 °, the lead pitch RP set in the lateral direction is substituted for the sensor scan pitch SS (step S31). Hereinafter, the sensor scan pitch SS in the lateral direction corresponds to the sensor reading pitch, but since this is not an integer, it cannot be converted as it is. Therefore, it is converted so that it can be read at an integer pitch.

First, the reading pitch Sf is set to "SS x SP
The obtained read pitch Sf is a numerical value including a small number (step S32). Next, N is set to 1
Then, the read pitch Sf multiplied by N is substituted into SN (step S34). continue,
The SN value obtained by rounding off the decimal part of SN is substituted for S (step S35).

Next, the RISC type microcomputer 11 selects | S /
It is determined whether SN | is smaller than a constant value (step S36). Here, if | S / SN | is not smaller than the constant value (for example, 0.01 [1%] as the constant value), N is incremented (step S39),
The process returns to step S34. Thus, step S3
4, S35, S36 and S39 are repeated until | S / SN | becomes smaller than a constant value. That is, the reading pitch Sf is multiplied by an integer, and N that makes the reading pitch Sf close to an integer is obtained.

Then, in step S36, | S /
When SN | becomes smaller than a certain value, the Sf value obtained by rounding off the decimal part of the reading pitch Sf is substituted for SF (step S37). Further, "S-SF × N" is substituted for C (step S38), the processing of this subroutine in step S8 is ended, and the process returns to step S9.

That is, SF is the reference value of the reading pitch Sf, and C is N times, when reading at the SF pitch,
It is an integer error when obtaining an image without distortion. Next, in step S6, in the case of the lateral direction, the lead pitch RP is an integer, so 1 may be substituted for N and 0 for C (step S7).

Succeedingly, in a step S9, the CCD is integrated while scanning by the sensor scan pitch SS.
Since the sensor scan pitch SS may include a small number, the sensor scan pitch SS may be integrated near the center of the sensor scan pitch SS. Note that this may be performed by a method equivalent to the processing in the "read skip pitch" subroutine shown in FIG.

Next, the RISC type microcomputer 11 sets C = 0.
It is determined whether or not (step S10). Here, when C = 0, there is no integer error, so 1 is substituted for I (step S11), and the process proceeds to step S15.
On the other hand, when C = 0 is not established, the read pitch Sf obtained by the "read skip pitch" subroutine shown in FIG. 12 is substituted into the read pitch Rp (step S).
12).

Subsequently, "N / | C |" is substituted for i (step S13), and the i value obtained by rounding off the decimal part of i is substituted for I (step S14), and step S15.
Then, the reading is performed according to the reading pitch of the CCD. Note that I indicates the number of times for correcting the error of C.

Next, in step S15, 1 is substituted for J and the lead pitch Rp is substituted for K. Where K is C
Since the CD reading pitch is Sf, the Kth sensor is read (step S16). The read start position is a position corresponding to the aspect ratio shown in FIG.

Next, the RISC type microcomputer 11 displays "J =
It is determined whether or not "I is an integral multiple of I" (whether or not the reading pitch Sf is corrected). If "J = an integral multiple of I", that is, if correction is not necessary, step S2
Move to 2. On the other hand, when “J = integer multiple of I”,
That is, when the correction is necessary, the process proceeds to step S18.

In step S18, it is determined whether C = 0 holds. Here, if C = 0, the process proceeds to step S22, and if C = 0 does not hold, the process proceeds to step S19.

In step S22, the lead pitch Rp is reset to K, and the process proceeds to step S23. Also,
In step S19 where correction is necessary and C = 0 does not hold, the RISC microcomputer 11
Determine the sign of C. Here, when the sign of C is "+", K is incremented (step S20), and when the sign of C is "-", K is decremented (step S21) and the process proceeds to step S23.

Next, in step S23, the RISC
The type microcomputer 11 determines whether J = N holds. Here, when J = N is not satisfied, that is, when J is less than the reference correction number N, the process proceeds to step S25,
Increment J and return to step S16.

Here, for example, N = 7, SF = 3, C =
The reading pitch Sf when the result of +2 is 3,
It suffices that the error component of C be added almost evenly, such as 3, 3, 3 + 1, 3, 3, 3 + 1. Of course, when C is negative, the pitch of the 3 + 1 portion becomes 3-1.

On the other hand, if J = N in step S23, the process proceeds to step S24, and it is determined whether or not the scanning range of the film 42 has ended. If not completed, the process returns to step S9 and the subsequent processes are repeated. On the other hand, if it is finished, this processing is finished.

The above is the operation when the NTSC system is used. Next, the case where the PAL system is used will be described. In the case of the PAL system, the lens may be switched for PAL, but the structure of the device becomes complicated. Then, considering the PAL display at the same optical position as the above-mentioned NTSC system, it is as follows. Basic clock for screen display f = 17.
73 MHz, number of scanning lines LN = 146, NTS
In common with the case of the C method, the scan pitch SP is 0.825. This is because the range displayed on the screen is slightly smaller than that of the NTSC system, and the change in the electrical system is minimal.

FIG. 13 is a diagram showing an image of the display range when the display is made in the PAL system in this embodiment. T
Panorama 131P, high-definition 1 in V monitor 131
The display ranges of 31H and service 131S are shown.

In the case of the aspect ratio setting method, the magnetic circuit 28 in the block diagram shown in FIG. 3 is replaced by a SW input or the like, and other configurations are the same as those in the above case. Therefore, the description is omitted here.

As described above, in the present invention,
The image captured on the film can be displayed on the TV monitor as an image similar to that at the time of printing by a simple calculation without requiring a complicated interpolation calculation.

In this embodiment, the image on the film may be input by scanning the film side or the CCD side which is a line sensor. Furthermore, in the present embodiment, the description has been centered on the conversion into a TV signal and display on a TV monitor, but it goes without saying that the same idea can be applied when displaying on a liquid crystal display (LCD).

According to the above embodiment of the present invention, the following configuration can be obtained. (1) In the image input device for inputting image data from the silver salt film on which the aspect ratio information at the time of printing and the film after development processing are input and displaying the input image on the TV monitor, A reading means for reading the aspect ratio information, a line sensor for inputting an image, and a TV when the aspect ratio is a panoramic size.
A pixel range that is a common multiple of approximately 1/3 of the number of effective horizontal scanning lines is read, and if the aspect ratio is the service size or high-definition size, the pixel range that is approximately 3/2 times the pixel range at the time of the panorama size is read. A film image input device characterized in that (2) When the read film image information includes top-bottom information, the image information is converted and displayed according to the information, and the film image input device according to the above (1). (3) The film image input device according to (1), wherein the image size displayed on the TV monitor does not depend on the aspect ratio, and the sizes in the short side direction are substantially the same. . (4) Input the image data from the silver salt film that can specify the aspect ratio at the time of printing, and input the input image to the TV.
In an image input device for displaying on a monitor, the above-mentioned aspect ratio designating means, a line sensor for image input, and when the designated asspect ratio is a panoramic size, the number of TV effective scanning lines is set. A film image input device characterized by reading a pixel range of a common multiple of about 1/3 and reading a pixel range of about 3/2 times the pixel range at the time of the panorama size when the aspect ratio is the service size. . (5) The film image input device according to (4), further comprising a processing circuit for rotating the image by 90 degrees, the processing circuit operating in response to an operation input of a manually operated member. (6) The film image input device according to the above (4), wherein the image size displayed on the TV monitor does not depend on the aspect ratio and the sizes in the short side direction are substantially the same. .

[0088]

As described above, according to the present invention, the image input from the film is automatically displayed on the TV monitor with the same aspect ratio as that at the time of printing with the simple structure of the single focus optical system. It is possible to provide a film image input device capable of performing the above.

[Brief description of drawings]

FIG. 1 is a block diagram showing a conceptual configuration of a film image input apparatus according to the present invention.

FIG. 2 is a block diagram showing a conceptual configuration of another film image input apparatus according to the present invention.

FIG. 3 is a block diagram showing a configuration of a film image input apparatus according to an embodiment of the present invention.

FIG. 4 is a perspective view showing an arrangement of mechanisms around a film feeding unit of the film image input apparatus of this embodiment.

FIG. 5A is an arrangement diagram showing a positional relationship between a film, an optical system, and a magnetic head in a film feeding direction,
(B) is a diagram showing a positional relationship at the time of outputting a video signal.

FIG. 6 is a diagram showing an example of a film with asphalt ratio information used in this example.

FIG. 7: Currently used 13 used in this embodiment
It is an example of a film of 5 standards.

FIG. 8 is a diagram showing a positional relationship between a film and a line sensor.

FIG. 9 is a diagram showing an example when the short side direction of each aspect ratio is displayed as the same dimension in the present embodiment.

FIG. 10 is a flowchart showing the processing of the RISC type microcomputer 11 as the operation of the film image input apparatus of this embodiment.

FIG. 11 is a flowchart showing the processing of the RISC type microcomputer 11 as the operation of the film image input apparatus of this embodiment.

FIG. 12 is a flowchart showing a process of a “read skip pitch” subroutine in step S8 when the screen direction is vertical.

FIG. 13 is a diagram showing an image of a display range when displaying in a PAL system in the present embodiment.

[Explanation of symbols]

1 ... Aspect ratio reading unit, 2 ... TV signal conversion unit, 3
Line sensor, 4 Image input unit, 5 Aspect ratio setting unit, 11 RISC (REDUCED INSTRUCTION SET)
Computer) type microcomputer, 12 ... Line sensor, 13
… Clamp circuit, 14… Sample and hold circuit, 15…
Amplifier, 16 ... Analog / digital conversion (A / D conversion)
Circuits, 17 ... DMA (DIRECT MEMORY ACCESS) circuit, 18 ... Image memory, 19 ... Latch circuit, 20 ... Analog / digital conversion (A / D conversion) circuit, 21 ... Encoder, 22 ... Driver, 23 ... Light source section, 24 ... Motor driver, 25 ... Film feeding motor (M), 26 ... Perforation detection circuit, 27 ... Photo reflector (P
R), 28 ... Magnetic circuit, 29 ... Magnetic head, 30 ... Display unit, 31 ... Operation switch (SW) group 31.

Claims (3)

[Claims] 1. A film image input device for displaying an image on a film on a screen of a TV monitor device, a reading means for converting an optical image of a developed silver salt film into an electric signal, and an attribute of the optical image. A film image input device, comprising: a conversion unit that converts the read electrical signal into an optimized video signal based on the above. 2. The film image input apparatus according to claim 1, wherein the attribute of the optical image is aspect ratio information at the time of print processing or top-bottom information of the image. 3. The optimized video signal sets an image aspect ratio on the screen of the TV monitor device based on aspect ratio information at the time of print processing. Film image input device.