JP3286255B2 - Image processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] The present invention relates to a recording apparatus such as a VTR for analog recording.
An image processor connected to the recording device and performing bidirectional communication with the recording device
The present invention relates to a processing device. [0002] 2. Description of the Related Art In recent years, image information centered on electronic computers
With the rapid development of processing systems, for example,
And processes the read image with an arithmetic processing unit.
Output from an image output device such as a laser beam printer.
An apparatus configured as described above has been proposed. [0003] However, there is a need for standing
To input body images to the above image information processing system
Is to take a picture once with a still photo, etc.
Reading photos with image reading means, such as a reader
The captured image cannot be processed directly without further input.
Therefore, there is a problem that the processing becomes very complicated.
Was. [0004] In addition, digital images can be stored in a computer.
Various processing and editing can be performed, and such editing can enhance expression.
Even if you generate a kana digital image, this edited image
Considering the case of recording on a VTR,
Configuration suitable for recording images edited with data on a VTR
Was not considered. In other words, recording with a general VTR
However, complicated operations are required for easy playback on a TV.
Was. For example, a computer digital image is converted to an analog
If you convert it and send it to a VTR,
Usually does not know the status of the VTR,
After confirming the status with the TR,
Was. In other words, a two-way communication connection between the computer and the VTR
Can perform recording operations according to each other's status.
Did not. The present invention has been made to solve the above problems.
The purpose is to check the status of the VTR
No need to generate video signal while digital
An image processing apparatus for recording an image subjected to image processing on a VTR
Image processing equipment that can be used very conveniently
Is to provide an installation. [0005] [MEANS FOR SOLVING THE PROBLEMS]
The present invention is connected to a VTR for analog recording,
An image processing apparatus that performs two-way communication with a VTR,
Image to be edited on the image data recorded
Editing means and storing the image edited by the image editing means
Storage means for converting digital image data into analog data.
D / A conversion means, the VTR, commands and data
Transmitting and receiving means for transmitting and receiving images, and
A data recording command is transmitted, and the recording
When a response to the recording command is received,
The image data to be transmitted latched in accordance with
A / D conversion means for outputting the D / A converted image data
In the video format and send it to the VTR
And control means for controlling
Is the image data latched according to the predetermined clock.
1 line of image data has been transmitted
If it is determined that there is no such signal, update without outputting the vertical sync signal.
Requesting the transfer of image data
When transmission of the next line is performed after transmission of
Outputs a direct sync signal to request further image data transfer
Things. [0006] [0007] FIG. 1 is an image processing apparatus showing an embodiment of the present invention.
To explain an example of an image processing system to which
FIG. In the figure, reference numeral 31 denotes a workstation.
(WS), the reader / printer interface 32,
Image compression unit (ICU) 33, professional
Gram memory (PMEM) 34, bit move unit
(BMU) 35, image memory (IMEM) 36,
Deoram (VRAM) 37, Central processing unit (CPU) 3
8, the bus 39 and the like.
Two-dimensional to expand and contract the code rate
Compression (high compression) is employed. PMEM34 is WS
Input / output device and WS31 provided around the terminal 31
OS program for controlling each unit in the
Application memory area.
A format for converting character codes into image data.
Memory area. [0009] The BMU 35 is displayed on the CRT display 40.
And edits an image (image processing).
Enlarging, reducing, rotating, or cutting images
It is. The IMEM 36 stores, for example, 4 Mbytes.
It has a capacity to store images from the reader 43,
U35 stores edited images, and ICU 33
To store expanded data, key code characters
Word processing code data, mixed data or key
Stores data obtained by converting character codes into images
Things. VRAM 37 is connected to CRT display 40
Stores image data to be displayed using bitmap codes
Is what you do. 44 is a hard disk drive and WS31
Store the data processed in. Reference numeral 45 denotes a floppy disk drive, which is a WS3
The data processed in step 1 is stored. 48 is an input unit.
-Board 48a, pointing device 48b, etc.
Be composed. The keyboard 48a is used to input characters and the like.
In the meantime, using the cursor on the CRT display 42
Specify a position. Pointing device 48b is CR
An arbitrary position on the T display 42 is designated. 49
A printer device serving as an image output means, edited by WS31.
Output the output image. 1 is a video control unit (VC)
U), the reader / printer interface in the WS 31
And a dedicated cable 1a.
Source 2. VCU1 is a reader / printer interface
Face 32 and a dedicated cable 1a.
It is driven by the power supply 2. A VTR 46 records a video signal.
47 is a TV camera, which converts the captured image into a video signal
I do. VTR 46 and TV camera 47 are connected to VCU1.
Have been. VCU1 is a reader 43, a TV camera 4
7, Input from VTR 46 to WS31 and input from WS31
The output to the linter device 49 and the VTR 46 is switched. Sa
In addition, the VCU 1 receives signals from the TV camera 47 and the VTR 46.
Analog input (video signal) is sampled and A / D
Convert and output digital information on bus 39 of WS31
And the digital information transmitted on the bus 39
, And D / A convert the analog information to VTR46
To send to. FIG. 2 shows an image information processing system according to the present invention.
FIG. 2 is an external view for explaining a system,
Are attached. As can be seen from these figures, the reader 43
Is read via VCU1 and cable 1a
Sent to WS31 and edited by WS31
The image information is sent to the printer 49 via the VCU 1.
It is. Further, a video signal output from the TV camera 47 is output.
Is converted to a digital image signal by VCU1 and
Is transmitted to the WS 31 via the
The digital image signal edited in step 1 is transmitted via the cable 1a.
The digital image signal is sent to the VCU 1
The A / A converted video signal is sent to the VTR 46. FIG. 3 illustrates the configuration of the VCU 1 shown in FIG.
FIG. In the figure, reference numerals 11a and 11b denote switching switches.
Switch 11a, the TV camera 47 or the VT
Video signal (NTSC signal) sent from R46 and end
Child T ₁ , T_Two To the amplifier 12 by switching
Power. The amplifier 12 operates as a switch of the changeover switch 11a.
Amplify the video signal selected in the operation. Reference numeral 13 denotes a synchronization separation circuit, which is amplified by the amplifier 12.
The analog image signal and the synchronization signal in the
To separate. Reference numeral 14 denotes a sample holder, which is a synchronous separation circuit 13.
The analog image signal separated by the
Sample and hold for each sampling clock SC
You. Reference numeral 16 denotes an A / D converter, which is a sample holder 1
The analog image signal sampled and held in step 4
For example, it is converted into an 8-bit digital image signal. 17 is the minute
In the separation circuit, the synchronization signal separated from the synchronization separation circuit 13 is
Further, the horizontal synchronizing signal HSYNC and the vertical synchronizing signal VSYNC
Separate into C. Separate horizontal sync signal HSYNC and vertical
The synchronization signal VSYNC is sent to the control unit 15. Reference numeral 18 denotes a data switch, which is provided from the control unit 15.
By the control signals LC1 and LC2, for example, 8-bit data
Data from the driver receiver 19 to the printer 49
Then, the image data sent from the reader 43 is
Transfer to the sheaver 19 and send out from the A / D converter 16
Transferring the digital image signal to the driver receiver 19,
Digital image data edited from the driver receiver 19
Data to the D / A converter 20, etc.
Switch the transfer. The D / A converter 20 is a data switch 18
8 bit digital image signal sent from
Convert to a analog image signal. Reference numeral 21 denotes a mixer, which is output from the D / A converter 20.
Analog image signal input and output from the control unit 15
The horizontal synchronization signal HSYNC1 and the vertical synchronization signal VSYNC1
Are mixed to generate a video signal (NTSC signal).
A video driver 22 is a video driver output from the mixer 21.
The video signal is transferred to the VTR 46 via the changeover switch 11b.
Send. 23 is a control signal driver receiver, which is a VTR 4
Controls the command signal and status signal sent from 6.
A receiving unit for transferring the command signal to the VTR
And a driver section for transferring the data to the driver 46. Next, the input / output processing will be described with reference to FIGS.
The operation will be described. FIGS. 4 and 5 show an image processing apparatus according to the present invention.
9 is a flowchart illustrating an example of an input / output processing procedure.
In addition, (1) to (30) indicate each step. A video signal from the TV camera 47 is used as a host.
The case of transferring to the side will be described. First, the VCU 1 is connected to the WS 31 serving as a host.
The ready state is notified (1). As a result,
The strike detects that VCU1 is ready, and
Mode to VCU1 from read mode, TV camera mode
Write the command of the command. Next, VCU1 is sent from the host.
Issue a start command to. VCU1 has a start command
Waiting for transmission (2), the start command is transmitted
VCU1 is a ready command set by the host
It is determined whether or not the password has been confirmed (3).
The changeover switch 11a shown in FIG. 3 is opened (4). Next, the VCU 1 is in the TV camera mode.
(5) If YES, changeover switch
11a to terminal T₁ Side (6) and the amplification shown in FIG.
Signal transmitted from the TV camera 47 by the device 12
(NTSC signal) and amplified by the sync separation circuit 13.
It is separated into the analog image signal and the synchronization signal.
The horizontal synchronizing signal HSYNC and the vertical synchronizing signal
And is sent to the control unit 15 after being separated into a period signal VSYNC.
You. Next, the vertical synchronization signal VSYNC becomes "1".
(7), and the vertical synchronization signal VSYNC rises.
When it rises, the vertical synchronization signal VSYNC further becomes “0”.
(8), and the horizontal synchronization signal HSYNC is
It waits until it becomes "1" (9), and the horizontal synchronizing signal HSYN
When C rises, the horizontal synchronization signal HSYNC is
It waits until it becomes "0" (10), and the horizontal synchronizing signal HSY
When the NC falls, the sampling clock of the video signal
Is sent from the control unit 15 to the sample holder 14.
You. In response to this, the sample holder 14
ON / O of the sampling clock SC for the analog image signal
Hold according to FF, sample-hold analog
The log image signal is converted by the A / D converter 16 shown in FIG.
For example, convert to 8-bit digital image signal and switch data
In the register in the device 18, the
Latch is performed in accordance with ON-OFF of the clock signal LC. Further, 8 bits latched in the register
Is transmitted from the control unit 15.
Driver receiver 1 according to enable signals BE and DR
9. Reader / printer interface via cable 1a
Source 32, that is, to the host side and (1
1), the controller 15 sends an e-mail
A strobe signal indicating that the data is
Output. On the other hand, the VCU 1 is transmitted from the TV camera 47.
Until the horizontal synchronization signal HSYNC becomes "1".
The operation of step (11) is repeated (12), and the horizontal synchronizing signal
When HSYNC becomes "1", it is sent from TV camera 47.
Indicating that one line of the output video signal has been completed
To the host side via the driver receiver 19 and the cable 1a
Notify (13). Next, the data is transmitted from the TV camera 47.
To determine whether the vertical synchronization signal VSYNC is “0”.
(14), if YES, return to step (10),
If NO, the transfer of the video signal for one frame is terminated.
Therefore, data transfer for one frame is sent to the host side.
The controller 15 informs the driver receiver 1 that the transmission has been completed.
9. Inform via the cable 1a (15). Also, it is set in the control unit 15.
Reset the start command. In response, VCU1
Capture video signal from TV camera 47 and send to host
Data transfer is completed and VCU1 is ready.
State to the host. Next, the video recorded by the VTR 46 is displayed.
The operation of transferring the E signal to the host will be described. First, the VCU 1 is connected to the WS 31 serving as a host.
The ready state is notified (1). As a result, the host makes the VCU 1 ready.
Status, and the host sends a request to VCU1.
Mode mode and VTR mode commands are written. Next
Then, the host issues a start command to the VCU 1. V
CU1 waits for the start command to be sent (2),
When the start command is sent, VCU1 sends a message from the host.
To determine whether the ready command has been
(3) If YES, the changeover switch 11a shown in FIG.
Open (4). Next, the VCU 1 is in the TV camera mode.
(5), the answer is NO.
Switch 11a to terminal T_Two (16), and the VTR 46
Is in the ready state by the control signal drive shown in FIG.
A ready signal is sent from the VTR 46 via the receiver 23.
It waits for it to be issued (17).
6 through the control signal driver receiver 23 shown in FIG.
To output a reproduction command signal (18). Next, the video transmitted from the VTR 46
The vertical synchronization signal VSYNC separated from the video signal is
Detects whether it is "1" (7), and if "1", vertical synchronization
It waits until the signal VSYNC becomes "0" (8). Less than
Below, the same operation as in the TV camera mode is performed. Next, the VTR 46 processes the data on the host side.
The recording operation of the digital image signal will be described. First, the VCU 1 is connected to the WS 31 serving as a host.
The ready state is notified (1). As a result,
The strike detects that VCU1 is ready, and
From the write mode to the VCU1
Write the command. Next, the host issues a start command to VCU1.
Issue a password. VCU1 sends a start command
(2) When the start command is sent, the VCU
1 indicates whether the read mode has been set by the host
Is determined (3). In this case, the write mode is set.
Therefore, the answer is NO, and the changeover switch 11b is connected.
Also, the changeover switch 11a is connected to the terminal T₁ (1)
9). Next, the control signal driver receiver
Waits for a ready signal transmitted through the bus 23 (2
0), when the ready signal is sent, the control signal driver
Output recording command to VTR 46 via sheaver 23
(21). Next, in response to the recording command to the VTR 46,
And the control signal driver receiver 23 from the VTR 46
Waits for a ready signal transmitted via
When the signal is transmitted, the control unit 15 outputs the horizontal synchronization signal HSYN.
C1 is sent to the mixer 21 (23), and
ON / OFF signal of the period signal VSYNC1 to the mixer 21
Send it out (24). Next, a data transfer request is sent to the host.
A command signal is output (25). Next, a digit for the data transfer request
Waits for an image signal to be sent to the bus 39 (2
6) If it exists on the bus 39, the controller 15
Output enable signals BE and DR to driver receiver 19
To read from the reader / printer interface 32.
Digital image signal to VCU1 internal bus (not shown)
Take in, ON-OFF signal of latch clock LC2
Therefore, an 8-bit directory is stored in the register in the data switch 18.
The digital image signal is latched. The digital image signal is stored in the register.
Data reception end command to the host
Strengthen (27). The data in the data switch 18 shown in FIG.
8-bit digital image signal latched in the register
Is converted into an analog image signal by the D / A converter 20, and
The horizontal synchronizing signal transmitted from the control unit 15 by the mixer 21
Signal HSYNC1 and the vertical synchronizing signal VSYNC1 and the aforementioned
The video signal (NTSC) is mixed with the analog image signal.
Signal) is created, and the VTR is
The data is recorded on a magnetic tape 46. Next, a video signal for one line is transmitted.
(28), and if NO, step
Returning to (25), if YES, further for one frame
It is determined whether a video signal has been transmitted (29).
If the determination is NO, the process returns to step (24), and YE
In the case of S, the control signal driver receiver 2
3 and outputs an end command to the host.
Command, and set in the control unit 15.
Reset the startup command (30), and
The recording operation to the VTR 46 ends. It should be noted that, in FIG.
If a video printer is connected to the
Hard copy of the embedded image or the processed image
Can be printed out. The A / D converter shown in FIG.
In step 16, even if it is a binary image, a predetermined pseudo-shade image
Once the processing is executed, a pseudo-shade image signal is sent to the host
it can. The analog image signal is converted to a digital image signal.
When converting to a signal, a single or multiple thresholds
By performing the conversion, a pseudo halftone can be expressed. Further
It is also possible to convert digital image signals into multi-valued
is there. [0047] As described above, the image processing of the present invention
According to the device, digital images are simply converted to analog and recorded.
Unlike recording, while recognizing the status of the VTR
Not only can send video signals, but also
For example, the image data is large, and as one line of the video signal
Even if it is too big for VTR recording,
One line of data is transferred to one line according to the latch clock.
Are transmitted in a divided manner, and can be recorded. Used by this
While checking the status of the VTR,
Performs digital image processing without the need to generate video signals.
Using an image processing device that records the
This has the effect that it can be used without permission.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating an example of an image processing system to which an image processing apparatus according to an embodiment of the present invention can be applied. FIG. 2 is an external view illustrating an image processing system to which the image processing apparatus according to the present invention can be applied. FIG. 3 is a block diagram illustrating a configuration of a VCU illustrated in FIG. 1; FIG. 4 is a flowchart illustrating an example of an input / output processing procedure of the image processing apparatus according to the present invention. FIG. 5 is a flowchart illustrating an example of an input / output processing procedure of the image processing apparatus according to the present invention. [Description of Signs] 1 VCU 1a cable 2 power supply 3 VTR 4 TV camera 11a changeover switch 11b changeover switch 12 amplifier 13 synchronization separation circuit 14 sample holder 15 control unit 16 A / D converter 17 separation circuit 18a register 18b register 19 Driver receiver 20 A / D converter 21 Mixer 22 Video driver 23 Control signal driver receiver 24 Bus driver 25 Bus receiver 31 WS 41 Reader 45 Printer

Continuation of front page       (56) References JP-A-60-5471 (JP, A)                 JP-A-60-87585 (JP, A)                 JP-A-60-256281 (JP, A)                 JP 54-14844 (JP, A)

Claims (1)

(57) [Claims] An image processing apparatus connected to a VTR for analog recording and performing bidirectional communication with the VTR, comprising: an image editing unit for performing image editing on digitally recorded image data; and an image edited by the image editing unit. send a storage means for storing, and D / a converting means for analog-converting the digital image data, and transmitting and receiving means for transmitting and receiving the VTR commands and data, the recording command of the image data to the VTR, When a response to the recording command is received from the VTR, the image to be transmitted latched according to a predetermined clock is transmitted.
Outputting the image data to the D / A conversion means;
The converted image data is converted to video format and
Control means for controlling transmission, and the control means further comprises a
After sending the touched image data, one line of image data
If it is determined that no
Requesting further image data transfer without outputting a signal,
The image data of the line is transmitted and the next line is transmitted
Output the vertical synchronizing signal to
An image processing apparatus for requesting data transfer .