JPS61126866A - Image processing system - Google Patents

Abstract

PURPOSE:To enable turning top and bottom of image inversely by changing transmission order of image information at the time of forming a possible image based on the image informing in parallel data. CONSTITUTION:When a command of output of image with the inverse turning of top and bottom is inputted from a keyboard 31 image information in a RAM34 is read out in the order, AD-N...AD-1, AD-0. When AD-N is outputted in bus 41, it is latched each eight bit by data latches 54 and 55 as a parallel image signal V3. Next, n-7-n are outputted to a shift register 56 from the data latch 55, and the shift register 56 outputs n-7- to D7-D0 terminals in a line. When the shift is performed by clock corresponding to an output equipment, an image signal is outputted from Q'0 in the order of n, n-1-n-7, and the image signal of n-15...n-8 is inputted in shift register in a line to be outputted from Q'0 in the order of n-8...n-15. Thus, the image forming whose top and bottom turns inversely against read time can be obtained by such action.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image processing system that processes electronically encoded image information.

It is known to record an image based on an image signal obtained by photoelectrically reading image information, or to transmit this image signal to a remote location.

Furthermore, a plurality of devices that handle image information as electrical signals can be connected via a transmission path, so that the output from any device can be transmitted to any device.

In such a system, the vertical direction of an image is transmitted between each terminal device in a fixed state. In other words, the vertical direction of the image information is determined by the image information reading direction. Therefore, in a terminal device or the like that displays an image vertically, the image may be displayed upside down depending on the input direction. Since image reading devices usually place originals horizontally, it is troublesome to unify the vertical direction.

Furthermore, even if it becomes necessary to provide a margin for binding output paper in an output device that forms an image on paper, etc., the margin cannot be changed by the image if the device cannot add a margin to a designated area.

The present invention has been made in view of the above points, and it is possible to form an image by reversing the vertical direction of the image information, regardless of the reading direction when inputting the image. Margins that can be added to paper or the like when outputting images can also be created at each corner without being limited by the output device.

Particularly, in a device that processes or stores image information in parallel for each predetermined bit, it is possible to quickly turn the image information upside down.

The present invention will be explained in more detail below using the drawings.

FIG. 1 is an external connection diagram of an image processing system to which the present invention is applied. Reference numeral 1 denotes a control section (referred to as a workstation) which includes a microcomputer for system control, an internal memory composed of RAM, ROM, etc., and an external memory composed of a floppy disk, a cartridge disk, etc. Reference numeral 2 denotes a document reader that converts document information of a document placed on a document table in the input section of a digital copying machine into an electrical signal using an image pickup device such as a COD.

Reference numeral 3 denotes a high-speed printer, such as a laser beam printer, which records an image on a recording material based on information converted into an electrical signal at the output section of the digital copying machine. 4 is an image file that has a recording medium such as an optical disk or a magneto-optical disk, and is capable of writing and reading a large amount of image information. Reference numeral 5 includes a microfilm search section for microfilm files, and a microfilm reader section for converting image information on the microfilm searched into an electrical signal using an image pickup device.

Reference numeral 6 has a photosensitive belt in which a photoconductive layer is provided on a transparent conductive band-shaped substrate, and the brightness and darkness of the image light is changed by irradiating the photoconductive layer with laser light that is modulated according to the input image signal through the substrate. An electrostatic latent image is formed on the photoconductive layer according to the image, and the formed latent image is developed with a conductive and magnetic toner (developer) held on a toner carrier to form a display image. It is a high-resolution soft display. Reference numeral 7 denotes a printer device such as a laser beam printer similar to the printer 3, but it is smaller and slower than the printer 3, and is installed as necessary. 8 is a digital copy machine and microfilm file input scanner (reader)
This is a CRT device that displays image information read photoelectrically or system control information.

Cables 10 to 16 electrically connect each input/output device. Further, reference numeral 20 denotes a keyboard provided in the control unit 1, and by operating this keyboard 20, system operation commands, etc. are issued. Reference numeral 21 denotes an operation panel for issuing operation commands for the digital copying machine, and includes setting keys for the number of copies, copy magnification, etc., a copy key 25 for supporting the start of copying, a number display, and the like.

FIG. 2 is a block diagram showing the circuit configuration of the image processing system shown in FIG. In FIG. 1, each corresponding block is given the same number as in FIG. First, each block within the control section 1 will be explained. Reference numeral 31 denotes a keyboard, which corresponds to the keyboard 20 shown in the first diagram, through which the operator inputs system operation commands. 32 is a microcomputer (for example, Motorola Isa o o
33 is a read-on memory ROM in which a system control program is written in advance, and the CPU 32 is a central processing unit (CPU) consisting of
Control operations are performed according to the program written in M33.

34 is a random access memory RAM, mainly C
It is used as a working memory of the PU 32 and a page memory for storing image signals exchanged between each input/output section. Reference numeral 35 denotes an external memory consisting of a floppy disk, which stores a system control program, a database for image retrieval from image files, etc., which will be described later.

Reference numeral 36 denotes a communication interface that enables information to be exchanged with other similar systems or terminals using a communication line such as a local area network.

37 is an input/output interface that accomplishes information exchange between the control unit 1 and each input/output unit. 39 is an optical disk interface for exchanging information with the image file 4, and 40 is a CRT interface for exchanging information with the CRT 8. Reference numeral 41 denotes a 16-bit path through which signals are transferred from each block within the control section 1. 1
1 to 16 are cables that electrically connect each input/output device as described above, and control signals and image signals are transmitted. Note that the arrows on the cables indicate the flow of image signals. Also,
Control signal flow is bidirectional in the cable.

As is clear from the figure, the document reader 2, high-speed printer 3, microfilm file, soft display 6, and small printer 7 of the digital copier 42 are connected to the input/output interface 37 by cables 11, 12, 14, 13, and 10, respectively. be done.

In addition, the image file 4 and CRT 8 are each connected to the cable 15.
．． 16 to each interface 39.40 of the control unit l.
connected to. The CRT 8 is provided with a display RAM 43 that stores image information to be displayed. Furthermore, since the image signal input/output at the input/output interface 37 is a serial signal, and the information on the bus 41 of the control unit 1 is a parallel signal, the input/output interface 37 has a serial/parallel signal for capturing the image signal. A register and a parallel-to-serial register for outputting image signals are provided.

Image signals output from the document reader 2 or the microfilm file 5 are input to the input/output interface 37 of the control section 1 line by line. The input/output interface 37 converts the serially inputted image signal into a parallel signal of every 16 bits and outputs it onto the bus 41. bus 4
The image signals outputted on 1 are sequentially input into the image area of the RAM 34 for one page. In this way, RAM34
The image signal stored in is outputted to the bus 41 again and outputted to the outside via the communication interface 36, or sent to the image file 4 via the optical disk interface 39 and written to the optical disk, or input/output interface. 37 to a high-speed printer 3, a soft display 6, or a small printer 7 for image formation.

Further, the image signal of the image file 4 read from the optical disk is written into the RAM 34 and then selectively transmitted to the high speed printer, the soft display 6 or the small printer 7 via the input/output interface 37.

The control related to the transmission of the image signal described above is executed by the CPU 32 in accordance with the operation command input by the operator using the keyboard 31.

FIG. 3 shows the reading method of the image reading device of the document reader 2. Reading proceeds line by line in the main scanning direction and in the sub-scanning direction.The read image information is sequentially sent to the input/output interface 37 as a serial image signal. Output to. In the input/output interface 37, the serial-parallel register converts the image signals into parallel image signals and outputs them to the bus 41. The image signals output to the bus 41 are sequentially stored in the RAM 34.
will be written to. The image information written in the RAM 34 is selectively transmitted to the high-speed printer 2, the soft display 6, and the small printer 7 via the input/output interface 37 in response to commands from the operator using the keyboard 31 to form an image. In this case, image information is read from the RAM 34 in the same order as when it is written. When image information is transmitted in this order, for example, in the soft display 6, the image information is transmitted in the main scanning direction as shown in FIG.
Image formation is performed line by line in the sub-scanning direction.

When reading by the document reader 2, if the document is set upside down with respect to the sub-scanning direction in FIG. 3, the output will be output to the soft display 6 upside down. R.A.
The image information stored in the M34 is simultaneously written into the RAM 43, and the image is displayed on the CRT 8. When the document reader 2 performs reading upside down with respect to the sub-scanning direction of FIG. 3, an upside down display is made on the CRT. In this case, the operator uses the keyboard 31 to issue a command to transmit the image upside down, and the CPU 32 sequentially outputs the image information written to the RAM 34, starting from the image information written last. C
An image display that is upside down compared to RT is obtained, and the image information is normal in the vertical direction.

FIG. 4 shows a storage method in the RAM 34 of image information read by the document reader 2 and output to the input/output interface 37. Image information is shown in Figure 4 (
b) are read as pixels such as 0, 1, 2, 3, etc.
. . . , n-1, and n are outputted to the input/output interface 37 as serial image signals in the order of n. The input/output interface 37 converts the serial image signal into a parallel image signal. This conversion is performed by, for example, a shift register 74L3299. 74LS299
A serial image signal transmitted from the high-speed printer 3 is input to the serial input of the printer. 74LS299 is set to right shift mode. 0.0 of the image information in FIG. 4(b).
1, 2. Shift register 74LS2 in the order of...
When a serial image signal is input to 99, it is shifted from the parallel output terminal Qo to Q7. When the image information of 7 is input, Q7゜Q6. ......, 0,1 for QO
,2. . . . 7 image information is output. At this point, the signals are aligned as parallel image signals using a latch element or the like.

FIG. 5 is a block diagram of a circuit that converts a serial image signal into a 16biL image signal. 0.1 as above,
2. ......, the image information of 7 is stored in the shift register 53
When the signal is output from the data latch 52, it is latched by the data latch 52 and output. Next, the shift register 53 has 8, 9, 10
．． .......

15 image information is input, Q7, Q6.

Q5. . . . The data latch 51 latches the data when it is output in parallel to Qo. At the same time as this latch, the data latch 50 outputs 0, 1, 2, .
. . . , the image information of 7 is latched and output. In this way, two 8-bit image information are combined to create 16
It is converted into bit image information. A 16-bit parallel image signal is output to the bus 41 in FIG. 2 and written to the RAM 34, and is input into the RAM 34 as 16-bit image information from AD-0 to AD-N as shown in FIG. 4(a). be remembered.

FIG. 6 is a block diagram of a circuit that converts image information in units of 16 biL read out from the RAM 34 into a serial image signal. The 16-bit parallel image signal is latched in 8-bit data latches 54 and 55. If 0 image formation is to be output in the vertical direction similar to reading, 16-bit image information is latched to data latches 54 and 55 in 8-bit increments. 1゜・・・・
7"-vertical touch 54 is read at 1 temperature of ..., O~7
The image signals of 8 to 1 are latched and sent to the data latch 55.
The image signal of No. 5 is latched.

Next, the image signals 0 to 7 are output from the data latch 54 to the shift register 56. In the shift register 56 to which image signals O to 7 are input in parallel, the output Q for the input D7 is
'7 is the serial image signal. Here, the shift register 56 is in right shift mode, and shifting is performed using the output device clock. In this way, the image information from 0 to n is transmitted to the image forming apparatus as a serial signal, and the image is formed in the same vertical direction as when reading.

Next, we will explain the operation of forming an image by reversing the vertical direction from when reading the image. When a command is input from the keyboard 31 to output an image with the top and bottom upside down, the image information in the RAM 34 will be A.
D-N, AD-(N-1),..., AD-1
, AD-0 are read out in the order of <, AD-N is read out in the order of pass 4.
1, 8 bits each are latched into data latches 54 and 55 as parallel image signal v3 in FIG. The data latch 54 latches n-15 to n-8, and the data latch 55 latches n-7 to n. Next, n-7 to n are outputted from the data latch 55 to the shift register 56. The shift register inputs n-7 to n in parallel to D7 to DO terminals. Output Q for DO
A serial image signal is output from 'O.

In this case, the shift register 56 is set to left shift mode. Then, when shifting is performed using the clock corresponding to the output device, from Q'0 there are n, n-1, n-2, .
..., the image signals are output in the order of n-7, and the image signals of the 0th order n-15 to n-8 are input in parallel to the shift register, n-8, n-7, -. -=-,' n-15
(7) Q'O is also given in order. Through such operations, the image information in the RAM 34 is changed to n, n-1,...
, 2°1, 0 can be transmitted as a serial signal to the output device in the order of 1, 0, and it is possible to form an image that is upside down compared to when it is read.

FIG. 7(a) shows a blank space for binding etc. that can be created by the high-speed printer 3.

This blank area is limited to the shaded area in the figure. however,
By transmitting the last image information written in the RAM 34, the high-speed printer 3 transmits the image information as shown in FIG. 7(b).
It is possible to create a margin in the shaded area shown in .

The small printer 7 is such that a blank space is forcibly created in the hatched area in FIG. 7 (&) depending on the device configuration. In an image output device in which a margin is forcibly formed in this way, it is possible to select the image output form as shown in FIG. 7(a) or as shown in FIG. 7(b) according to convenience.

As explained above, the image information for one page is stored. By changing the order in which image information is read from the RAM and switching the parallel-serial image signal conversion method according to the specification, it is possible to By transmitting a serial image signal of 1, it is possible to form an image that is upside down.

Furthermore, in an output device that forms an image on a single sheet of paper, when a margin is formed at the corner of the paper, it is also possible to form the margin on the opposite side according to preference.

[Brief explanation of the drawing]

Fig. 1 is an external connection diagram of an image processing system to which the present invention is applied, Fig. 2 is a block diagram showing the circuit configuration of the image system, Fig. 3 is a diagram showing an image information reading method, and Fig. 4 is an image in the RAM 34. Figure 5 is a block diagram of a serial-to-parallel conversion circuit; Figure 6 is a block diagram of a parallel-to-serial conversion circuit; Figure 7 is a diagram showing a blank area when outputting an image. , 1 is a control unit, 2 is a manuscript league, 3 is a high-speed printer, 4 is an image file, 5 is a microfilm file, 6 is a soft display, 7 is a small printer, and 8 is a CRT. Le L! ! ! 11 艮Iiwata serial fortune-telling sensoushin 5 1marashiru 1L-1 elephanti blindzai
) The main term is ``poor,'' meaning quantity.

Claims (1)

[Claims] When image information is processed in parallel for each predetermined bit or when a storage element image processing system forms a visible image based on image information of parallel data, by changing the transmission order of the image information, it is possible to turn the image upside down. An image processing system characterized by comprising: