JP2793820B2 - Image reading processor - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading processing apparatus, and more particularly, to an image reading processing apparatus, which photoelectrically converts an image recorded on a recording medium by moving the recording medium manually. The present invention relates to an image reading processing device provided with an image reading device for outputting image data.

[Conventional technology]

In information processing such as document editing by an information processing device such as a personal computer or a word processor,
A simple image reading device has been proposed for incorporating an image recorded on a recording medium such as paper into an edited document.

The image reading apparatus includes an illuminating unit, a photoelectric conversion unit, a movement detecting unit, and a control unit. The image reading unit illuminates the recording medium by manually moving the image reading apparatus over the recording medium. However, the reflected light is photoelectrically converted into image data for each unit movement amount of the image reading device. The image data read in this manner often includes image data of an unnecessary area.
The unnecessary information is deleted and edited in the information processing apparatus by an input operation from the keyboard thereafter.

Japanese Unexamined Patent Publication No. Sho 62-125770 discloses a method in which position information obtained in accordance with a moving direction and an amount of an image reading device at the time of image reading is used as an address of image data in a memory section, and then this address is input. Discloses an image reading processing device for extracting necessary image data.

[Problems to be solved by the invention]

However, in these image reading devices, after the image reading device is moved on a recording medium to obtain image data, an input operation for processing such as image data extraction from a keyboard must be performed. However, there is a disadvantage in that it is cumbersome.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make it possible to process image data by a series of operations when manually moving an image reading device, and to simplify the subsequent image data processing device. is there.

The processing of the image data means erasing (extracting necessary image data) processing of image data in an unnecessary area, emphasizing processing and inversion processing of a predetermined area, and the like.

[Means for solving the problem]

To achieve this object, an image reading device that is manually moved on a recording medium and photoelectrically converts an image recorded on the recording medium for each unit movement amount and outputs image data,
A memory unit for storing image data output from the image reading device, and controlling these to store image data output from the image reading device in the memory unit, and storing the image data stored in the memory unit. In an image reading processing device provided with a control device for processing, the first and second inventions include, in the control device, a moving direction detecting means for detecting a moving direction of the image reading device;
In response to a direction detection signal indicating one direction output from the moving direction detection means, image data output from the image reading device is stored in the memory unit, and the image is output when a direction detection signal indicating another direction is generated. An image data processing unit that reads image data from the memory unit for each unit movement amount of the reading device and executes a predetermined processing operation, wherein the predetermined processing operation is performed by emphasizing the read image data with an emphasis pattern. The present invention is characterized in that it includes a process of adding data (first invention) or an inversion process of inverting read image data (second invention). A reading processing range switching switch, a moving direction detecting means for detecting a moving direction of the image reading device in the control device; In response to the direction detection signal indicating the direction, the image data output from the image reading device is stored in the memory unit, and when the direction detection signal indicating the other direction is generated, the image data is responded to the signal from the reading processing range switching switch. An image data processing unit for reading image data from the memory unit for each unit movement amount of the image reading device and executing a predetermined processing operation process.

[Action]

By reciprocating the image reading device on the recording medium, it is possible to read image data and to perform processing arithmetic processing such as emphasis processing and inversion processing of image data in an arbitrary area. The processing input operation can be simplified.

〔Example〕

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is a control block diagram of the entire apparatus for applying a field pressure in which the image reading processing apparatus according to the present invention is implemented by an information processing apparatus such as a word processor. 2, the image reading apparatus 10 includes an image reading section 11, a reading processing range switching switch 54, and an image signal on / off switch 53, and is connected to the interface circuit 9 of the main body via the cable 21. The cable 21 includes a direction (DIR) signal line 22, a start signal line 23, an image information signal line 24 for image data and data clock, a power supply line 25, and a read processing range switching signal line 26.
And an image information on / off signal line 27. Reference sign
Reference numerals 28, 29, and 30 denote cables for connecting a keyboard 15, a flexible disk device (FDD) 17 and a printer 19 to a keyboard controller 14, a flexible disk control device (FDC) 16 and a printer controller 18, respectively, in the main body. It is configured to transmit input data, print data and storage data via the cable.

A main control circuit mainly composed of a central processing unit (CPU) 1 which is a program storage type calculation unit in the main body stores a program executed by the CPU 1 in order to exhibit a function as an information processing device after power-on. Memory 2 for storing input information processing data, and image processing work memory 4 for storing image data input from the image reading device 10.
A character generator 5 which stores dot data expressing characters in a dot matrix as a character code as an index and outputs dot data corresponding to the input character code; and a liquid crystal for displaying an information processing state. A display device 8, a display memory 6 for storing display data for status display, and a liquid crystal controller 7 for transferring the data stored in the display memory 6 to the liquid crystal display device 8 at regular intervals and executing display control And a keyboard controller 14 for controlling the keyboard 15 and an FDC for controlling the FDD 17
16 and a printer controller 18 for printing information by controlling a printer 19, which are connected to the CPU 1 via a bus line 20.

3 (a) and 3 (b) are a vertical sectional side view and a vertical sectional front view showing the structure of the image reading device 10. FIG. Image reader 10
A pair of left and right rolling rollers 41 are provided below the front case 48, and a slit disk 40 is integrally provided on one of the rolling rollers 41. A first photo-interrupter 45 and a second photo-interrupter 46 provided opposite to the slit portion of the slit disc 40 are arranged at a predetermined interval in the rotation direction of the slit disc 40. At the bottom of the rear case 49,
A slit-shaped opening 43 is provided which extends in a direction perpendicular to the direction of movement of the image reading device 10 moving on 44. A light source 42 such as a light emitting diode array, which is a document illuminating means, is provided on the opening 43. A lens 50 is provided on the sensor substrate 52 at a position where the reflected light reflected from the document 44 can be received, an image sensor 51 is provided before the emitted light is formed into an image, and a second sensor for image signal ON / OFF is provided. A first switch 53 and a second switch 54 for switching a reading processing range are provided. Control board 47
On the top, a cable 56 for connecting the first photointerrupter 45 and the second photointerrupter 45 described above, the sensor substrate 52, and a cable for connection to the interface circuit 9 of the main control circuit of the main body. The control circuit unit 55 provided in the image reading unit 11 for controlling image reading is mounted on one of the terminals 21.

In the image reading device 10 configured as described above,
After performing the initial procedure for starting the operation, the image reading device 10 is set on the document 44 and is manually moved.
The rolling roller 41 rotates in conjunction with the movement, and the slit disc 40, the first photointerrupter 45, and the second
The movement of the image reading device 10 is detected by the photo interrupter 46, and the detection signal is input to the control circuit 55 in the image reading unit 11. At the same time, the light source 42 is also turned on, and the reflected light from the document 44 illuminated by this is imaged on the image sensor 51 via the lens 50 and photoelectrically converted, and input to the control circuit unit 55 as analog image data. Is done. The control circuit unit 55 controls the image sensor 51, the first photointerrupter 45, and the second photointerrupter 46 mounted on the control boards 47 and 52, and outputs the DIR signal as an output signal on the signal line 22. A start signal is generated on a signal line 23, an image information signal is generated on an image data signal line 24a, and a data clock is generated on a signal line 24b. Also,
The first switch 53 and the second switch 54 output an image signal ON / OFF signal and a read-out processing range switching signal ("0" level when the switch is turned on, and "1" level when the switch is turned off, respectively). Generated on the signal line 26. These signal lines 22, 23, 24a, 24b, 26, 27 and a power supply line 25 for supplying power to the image reading apparatus 10 are connected to a cable 21.
It will be decorated in.

Next, the configuration and operation of the control circuit unit 55 will be described with reference to FIG. The control circuit unit 55 includes an image data generation circuit 57, a movement direction detection circuit 58, and a start signal generation circuit 59.
And a data clock generation circuit 60. The image data generating circuit 57 is connected to the image sensor 51, and the moving direction detecting circuit 58, the start signal generating circuit 59, and the data clock generating circuit 60 are connected to the first photo interrupter 45 and the second photo interrupter 46 via signal lines 61, It is connected so as to input a first detection signal and a second detection signal, which are two signals having a phase shift output to 62.

Then, the image data generating circuit 57 drives the image sensor 51 based on a start signal and a data clock, which will be described later, and converts the analog image data obtained from the image sensor 51 into binary image data which is converted into a digital signal. On the signal line 24a.

The movement direction detection circuit 58 is configured to indicate a movement direction of the image reading device 10 based on the first detection signal and the second detection signal.
A signal is generated and output on a signal line 22.

The start signal generation circuit 59 generates a start signal which is a synchronization signal for indicating a valid period of the image data every time the image reading device 10 moves by a unit amount based on the first detection signal and the second detection signal. , On the signal line 23. Although the generation cycle of the start signal depends on the moving speed of the image reading device 10, the data valid period after the generation is constant.

The data clock generation circuit 60 generates a data clock, which is a transfer clock for transferring image data, based on the first detection signal and the second detection signal, and outputs the data clock on the signal line 24b.

FIGS. 5 (a), (b) and (c) show a moving direction detecting circuit.
58 shows a configuration and operation of the device. Since the first photointerrupter 45 and the second photointerrupter 46 are arranged at a predetermined interval in the rotation direction of the slit disc 40 as described above, the first photointerrupter 45 and the second photointerrupter 46 are separated from each other. The first detection signal having the transfer difference φs and the second detection signal
A detection signal is obtained.

FIG. 5A shows the waveforms of the first detection signal and the second detection signal when the rolling roller 41 rotates forward by the image reading device 10 moving in the forward direction. Since the first detection signal is ahead of the second detection signal by the phase φs in time, the second detection signal rises at the rising edge of the first detection signal.
The detection signal is always at the “0” level.

FIG. 5B shows the first detection signal and the second detection signal when the image reading device 10 is moved in the reverse direction and the rolling roller 41 rotates in the reverse direction.
3 shows a waveform of a detection signal. In this case, the first detection signal is delayed from the second detection signal by a time corresponding to the phase φs. Therefore, at the rising edge of the first detection signal, the second detection signal is always at the "1" level.

FIG. 5 (c) shows a moving direction detecting circuit 58 configured to detect the moving direction of the image reading apparatus 10 by logically processing the two detection signals shown in FIGS. 5 (a) and 5 (b). It is a block diagram. This circuit is composed of flip-flops,
When the rolling roller 41 rotates in the normal direction (when the image reading device 10 is moving in the forward direction), a DIR signal of a "0" level is generated, and in the reverse rotation (when the image reading device 10 moves in the reverse direction). DIR signal of "1" level is generated. In addition,
The reset signal is a signal necessary for initializing the circuit.

FIG. 6 shows the moving direction of the image reading device 10 and the rolling rollers.
41 shows the relationship with the rotation direction of 41. The image reading device
The rolling roller 41 rotates forward when the document 10 is moved on the original 44 in the forward direction, and rotates reversely when the document 10 is moved in the reverse direction.

The output timing of the DIR signal, start signal, image data and data clock will be described with reference to FIGS. 7 (a) to 7 (d).

The start signal responds when the image reading device 10 moves and the first detection signal and the second detection signal output from the first photo interrupter 45 and the second photo interrupter 46 change, and the image reading is performed. This is a positive pulse output from the start signal generation circuit 59 to the signal line 22 every time the device 10 moves by a predetermined amount. Therefore, the output cycle Tsp depends on the moving speed of the image reading device 10 on the document 44. That is,
If the moving speed is high, Tsp is short, and if the moving speed is low, Tsp becomes long.

The image data and the data clock are output during the period T1 immediately after the start signal is generated, and the data clock is used as a synchronous clock for transferring the image data. The period T1 is the data valid period, which is
In general, it can be expressed by T1 = (number of image sensor pixels) × (transfer clock cycle).

The DIR signal becomes “0” or “1” in synchronization with the generation of the start signal, depending on the moving direction of the image reading device 10 at that time.

Next, the configuration and operation of the interface circuit 9 between the image reading apparatus 10 and the main body will be described with reference to FIG.

The interface circuit 9 includes a first register 70 that stores status (state) information that can be read by the CPU 1 via the bus line 20, a second register 71 that can write a control signal, and an image reading device 10 A data conversion circuit 76 for converting the serial image data input from the CPU 1 into parallel data so that the CPU 1 can read the data, a third register 72 for storing the parallel data as parallel image data readable by the CPU 1, Is monitored, and the valid period of the image data after the start signal is generated (T1 period)
Is detected, and a start detection signal indicating the section is provided on a signal line 78.
Similarly to the reading start detection circuit 74 output above, the start signal is monitored, and the moving speed of the image reading apparatus 10 is calculated from the input cycle of the start signal (the number of inputs per unit time). A start pulse monitoring circuit 73 that detects the moving state of the image reading device 10 by comparing the moving speed with the set reference speed and outputs a state signal (“1” when moving and “0” when stopping) on a signal line 77. Have. The start pulse monitoring circuit 73 can be realized by hardware using a retriggerable multivibrator or the like or a CPU having software for executing signal processing. Reference numeral 75 denotes a counter for counting the data clock on the signal line 24b. A latch clock signal for transferring the image data converted into parallel data by the data conversion circuit 76 to the third register 72 is provided on the signal line 80. Data storage completion (RE in this embodiment) indicating that data storage in the third register 72 has been completed (8 bits in this embodiment).
Q) Generate a signal on the signal line 79. A first switch level detection circuit 85 for detecting the level of the image signal on / off signal on the signal line 27, which is the output signal of the first switch 53, and outputting a read inhibit signal on the signal line 82; A second switch level detection circuit 86 is provided for detecting the level of the read processing range switching signal on the signal line 26, which is the output signal of the second switch 54, and outputting a range signal on the signal line 83. A buffer 81 is a circuit for controlling whether or not any of the DIR signal, the start signal and the image information signal is input to the internal circuit of the interface circuit 9. The read inhibit signal on the signal line 82 is used as the control signal. Can be In particular,
When the first switch 53 is on, the read inhibit signal on the signal 82 goes to the "0" level, the buffer 81 is brought into the inactive state, and some of the DIR signal, start signal and image information signal are output. Is not input, and the image reading operation is not performed. Conversely, when the first switch 53 is off, the read inhibit signal on the signal line 82 is at the "1" level, the buffer 81 is activated and the image reading operation is performed.

Next, the configuration of the first register 70 will be described. The DIR bit is set or reset according to the level of the DIR signal. Specifically, when the moving direction of the image reading device 10 is forward / reverse, the rolling roller 41 rotates forward / reverse, and the DIR signal becomes “0” level / “1” level. This data can be read by the CPU 1, and the CPU 1 reads the data of the DIR bit to thereby
It is possible to know the rotation direction of 1 and the moving direction of the image reading device 10. The DIR bit data read by the CPU 1 is stored in the DIR flag area 109 in the program memory 2. The status bit is set or reset according to the level of the status signal on the signal line 77. Specifically, when the moving speed of the image reading device 10 is lower than a predetermined value, that is, when the moving speed is fast, the value becomes “0”, and when the moving speed is fast, the value becomes “1”. And this data
The data can be read by the CPU 1, and the CPU 1 can know the moving state of the image reading apparatus 10 by reading the data of this status bit. The start detection bit is set or reset according to the level of the start detection signal on the signal line 78. Specifically, it becomes "0" during the valid period (T1) of the image data and the data clock,
In other periods, it is “1”. The CPU 1 can thereby know the validity period of the image information signal. The REQ bit is set or reset according to the level of the REQ signal on the signal line 79. The REQ signal is a signal which is obtained by serially inputting image data via a signal line 24a to a third register.
When cutting out according to the 72-bit number (8 bits in this embodiment), it is used as a cut-out completion signal. Specifically, when the setting of the data to be read by the CPU 1 is completed in the third register 72, the value becomes "1". Becomes The range bit is set or reset according to the level of the processing range signal on the signal line 83. Specifically, when the second switch 54 is pressed down and turned on, the read processing range switching signal on the signal line 26 becomes "0" level, which is transmitted to the range bit as a processing range signal. When the second switch 54 is off, the read processing range switching signal becomes "1" level,
The range bit becomes "1". By reading the range bits via the bus line 20, the CPU 1 can know what operation area the image reading device 10 is in.

The second register 71 is a register to which the CPU 1 can write. The initial bit of the second register 71 outputs an initial signal on the signal line 84 by writing data by the CPU 1. This initial signal is input to the start pulse monitoring circuit 73, the read start detection circuit 74, the counter 75, and the data conversion circuit 76, and instructs initialization of each circuit.

The third register 72 is a register that can be read by the CPU 1, stores the image data converted in parallel by the data conversion circuit 76, and relays the image data to the CPU 1.

9 (a) to 9 (c) show directions of display characters for the liquid crystal display device 8 for displaying the image data read by the image reading device 10, and the data arrangement of the image processing work memory 4 and the display memory 6. It shows the interrelationship.

FIG. 9 (a) shows the direction of the characters displayed on the liquid crystal display device 8, and FIGS. 9 (b) and 9 (c) show the arrangement of the memories in any arrangement for the display of FIG. 9 (a). Indicates whether data should be written to Each memory array is defined such that the flow from left to right and the flow from top to bottom in the display are the forward direction, and the direction opposite thereto is the reverse direction. The CPU 1 stores the image data transferred from the image reading device 10 in the image processing work memory 4 and transfers the image data to the display memory 6 to execute the display processing. The data transferred to the display memory 6 is displayed on the liquid crystal display device 8 by the display operation of the liquid crystal controller 7. The display pixels of the liquid crystal display device 8 are the work memory 4 for image processing and the display memory 6.
Correspond to the data storage elements in units of one bit.

Next, among the programs executed by the CPU 1 of the main control circuit of the main body, an image reading processing program including the features of the present invention will be described with reference to FIG.

The image reading processing program is executed by a function selection input from the keyboard 15 and is executed.
The read image data is stored in the image processing work memory 4 and simultaneously written into the display memory 6 to be displayed on the liquid crystal display device 8.

 Processes 90 and 91 are pre-processes of the image reading operation.

A process 90 is a process for initializing each circuit in the interface circuit 9, work registers defined in the program memory 2, and a memory for storing data. The CPU 1 stores the data in the second register 71. To initialize the start pulse monitoring circuit 73, the read start detection circuit 74, the counter 75, and the data conversion circuit 76. The work registers have areas for storing position data x in the movement direction of the image reading device 10, position data y in a direction perpendicular to the direction (width direction), and data Nx and Ny which are the maximum values of each.
Each is initialized to a predetermined value.

Here, the position data x, y and the data Nx, Ny will be described with reference to FIG. FIG. 10 (a) shows the relationship between the read image and the position data x, y, Nx, Ny. The case where the image reading device 10 reads an image in the horizontal direction from left to right will be described as an example. The position data x is updated in synchronization with the generation of a start signal generated in response to the rotation of the rolling roller 41 due to the movement of the image reading device 10. The maximum value (right end value) of this position data x is Nx.
The position data y is photoelectrically converted by the image sensor 51 at the position of each position data x, and the image data generation circuit
The serial image data generated from 57 is cut out in parallel with the number of bits of the third register 72 (8 bits in this embodiment), parallelized, and updated each time it is read into the CPU 1.
The value of the maximum value Ny is defined by Ny = number of pixels of the image sensor 51 / cutout unit (8 bits).

The process 91 is a process for allowing the operator to input the direction of the read image from the keyboard 15 and the contents of predetermined arithmetic processing for image data processing. For example, if the read image is in the vertical direction with respect to the display screen, specify the vertical read,
If it is in the horizontal direction, a horizontal reading is designated. The CPU 1 stores the image data in the image processing memory 4 and the display memory 6 so that the image data is in the vertical direction with respect to the display screen when the vertical reading is specified, and when the horizontal reading is specified. Stores image data in the image processing memory 4 and the display memory 6 so as to be in a horizontal direction with respect to the display screen. The content of the predetermined arithmetic processing is a selection for specifying an arithmetic operation for erasing, shading, inverting, and the like for the image data.

The process 92 is a process for confirming the start of the image reading operation. The process 92 is repeatedly executed while the start detection bit of the first register 70 is "1". When the start detection bit becomes "0", the process proceeds to step 93.

A process 93 is a process for confirming the moving direction of the image reading apparatus 10, and is executed by checking the data of the DIR bit of the first register 70. If the DIR bit is "0",
This is an image reading operation in which the image reading device 10 moves in the forward direction, and the process proceeds to step 94. If "1", the image reading device 10
Indicates image reading by moving in the reverse direction, and the flow proceeds to processing 102.

In the process 94, the position data x is incremented (plus one).

In the process 95, an initialization process of the position data y is executed in order to start the reading operation of the image data for one line in the position data x updated in the process 94.

In a process 96, the REQ bit data of the first register 70 is checked, and whether the image data serially transferred from the image reading device 10 has been converted to parallel by the data conversion circuit 76 and stored in the third register 72 has been completed. Check if. While the REQ bit is "0", the process 96 is repeatedly executed, and R
When the EQ bit becomes "1", the process proceeds to step 97.

In the process 97, the image data stored in the third register 72 is taken into an internal register (not shown) of the CPU 1 via the bus line 20.

In step 98, the image data fetched into the internal register in step 97 is stored in the image processing work memory 4. For storage, the direction of the read image specified by the operator in process 91 is referred to. When the vertical direction is designated, the image data is stored in the image processing work memory 4 from the top to the bottom of the display screen. Also,
If the horizontal direction is specified, storage is from left to right.

In the process 99, the image data taken into the internal register of the CPU 1 in the process 97 is stored in the display memory 6. For storage, the direction of the read image specified by the operator is referred to in the same manner as described above. When the vertical direction is specified, data storage in the display memory 6 is performed from top to bottom with respect to the display screen. If the horizontal direction is specified, storage is performed from left to right. With this storage, the image data is displayed on the display screen.

The process 100 is a process executed after the image data stored in the third register 72 is completely stored in a predetermined memory.
The position data y is incremented in order to store the next image data in the position data x.

In the process 101, the updated position data y is compared with the maximum value Ny to confirm whether the image reading operation for one line in the position data x has been completed. If y = Ny, it is determined that reading of the read line has been completed.
Move on to If y <Ny, the process has not been completed, and the process returns to step 96 to read the next image data.

Process 102 is a process executed when the DIR bit is "1" in process 93 (when the image reading device 10 is moving in the reverse direction), and decrements (minus 1) the position data x. .

The following processing is processing for processing image data that has already been read and moved by the image reading device 10 in the forward direction and stored in the image processing work memory 4 and the display memory 6. Hereinafter, the image data of the area where the second switch 54 is pressed down is extracted (the image data of the area where the second switch 54 is not pressed down is deleted).
The following describes an example in which the calculation processing to be performed is specified.

In step 103, the on / off state of the second switch 54 is confirmed. Specifically, the range bit of the first register 70 is checked, and when the range bit is "1", the second switch 54 is not depressed and is off, so the processing is performed.
When the range bit is "0", the process proceeds to step 110 because the second switch 54 is depressed and turned on.

Steps 104 to 109 are executed when the second switch 54 is not depressed.

First, in step 104, as in step 95, the position data y
The initial processing of is performed.

In the process 105, as in the process 96, the R of the first register 70
The EQ bit is checked to confirm whether the storage of the image data in the third register 72 is completed. While the REQ bit is "0", the process is repeatedly executed, and when the REQ bit becomes "1", the process proceeds to a process 106.

In the processing 106 and 107, the data initialized in the processing 90 and the image data stored in the image processing work memory 4 and the display work memory 6 are selected and specified in the processing 91 by the processing 97, 98 and 99. A predetermined calculation process (here, an erasure calculation process) is executed. In the process 106, the image data of the image processing work memory 4 which is uniquely defined corresponding to the position data x and the position data y is read out, and the data calculation process is executed by a preset logic. In this embodiment, in order to erase the image data, the processing pattern data of "0" is read out from the character generator 5 and an arithmetic operation for calculating the logical product with the data is executed. It is stored in the target position of the memory 4. By this processing, the target image data in the image processing work memory 4 becomes "0", and the previously read image data is deleted.

In a process 107, the same arithmetic process as the process 106 is performed on the display memory 6 to delete the image data.

In these processes 106 and 107, when the image reading device 10 moves in the reverse direction, predetermined arithmetic processing is performed on the image data read from the memories 4 and 6, the result is stored in the target position, and the image data at the target position is stored. Even if the image data is updated, the same result can be obtained by performing predetermined arithmetic processing on the newly read image data, storing the result in the target position, and updating the image data at the target position.

After that, the position data y is incremented (plus 1) and updated in the processing 108, and the processing shifts to the processing 109.

In the process 109, the updated position data y is compared with the maximum value Ny, and it is confirmed whether the processing of the image data for one line corresponding to the position data x has been completed. If y = Ny, the process is terminated because y is completed, and the process proceeds to a process 114. If y <Ny, the process is not completed and the process returns to the process 105 for image data processing of the updated position data y. Run.

In the processes 106 and 107, by changing the contents of the arithmetic processing and the designation of the processing pattern data in advance, it is possible to perform shading enhancement processing and other processing in addition to erasure. Shading can be performed by a logical OR operation with the shading pattern data. When the solid black shading pattern data of "1" is used, the shading is performed. Erasing and filling can also be realized by replacement processing with “0” and “1”. The inversion can be performed by an exclusive OR operation with the pattern data of "1".

Steps 110 to 113 are executed when it is confirmed in step 103 that the second switch 54 is depressed and turned on. In steps 104 to 109, the image processing work memory 4
And the image data stored in the display memory 6 is erased by a predetermined arithmetic processing.
At 13, the target image data is not deleted.

In a process 110, an initialization process of the position data y is executed in order to start processing of one line of image data in the position data x updated in the process 102.

In a process 111, the REQ bit is checked, and when the REQ bit becomes "1", the process proceeds to a process 112, where the position data y is incremented. The end is checked, and if the end is confirmed, the process proceeds to step 114.

A process 114 is a process for checking whether or not a series of image reading processes has been completed, and confirms whether or not an image reading process in a predetermined range has been completed, or whether or not an image reading end instruction has been input from the keyboard 15. If not completed, the process returns to step 92.

In the above-described embodiment, the second switch 54 is not depressed and the arithmetic processing (erasing) is performed on the image data in the OFF area. On the contrary, the image processing is performed in the area where the switch 54 is ON. Arithmetic processing may be performed on the data. For example, in shading or inversion of a desired area,
If the process is executed in an area where the switch 54 is pressed down by the operator, the operator can easily specify the processing area.

FIGS. 10 (a) and 10 (b) show the relationship between the image to be read, the moving position of the image reading device 10, and the display image during the above-described image reading processing.

The image reading device 10 moves from the position P1 through the position P2 to the position P3.
After stopping at position P3, change the moving direction to position P
It moves in the course of reaching position P6 via 4, P5. In addition, the movement route between the positions is indicated by L1 to L5, and the routes L1 and L2 are forward movements, and L3, L4 and L5 are backward movements. And path L
Reference numeral 4 indicates that the second switch 54 is on.

Under the above conditions, when the image reading device 10 starts moving from the position P1, the read image data is stored in the image processing work memory 4 and the display memory 6 in accordance with the movement, and the display screen of the liquid crystal display device 8 is displayed. Is displayed as shown in FIG. 10 (b) (processes 90 to 101 in FIG. 1). At the position P3, reading of the whole area of the read image is completed and stopped.

Next, when the image reading device 10 is moved in the reverse direction from the position P3 to the position P4, the image data on the path L3 is deleted by the arithmetic processing (the processing 104 to 109 in FIG. 1).

The image reading device 10 is further moved to the position P5. However, since the second switch 54 is turned on, the image data of the path L4 is stored (extracted) as it is (the processing 11 in FIG. 1).
0-113).

Next, when the route L5 between the positions P5 and P6 is moved,
The image data on L5 is deleted by the arithmetic processing (first
Processing 104 to 109 in the figure).

As described above, according to the image reading processing device of the present invention, a series of moving operations of the image reading device 10 to the positions P1 to P6 and on / off operations of the second switch 54 provided in the image reading device 10 are performed. Thus, unnecessary areas can be deleted from the read image data and only the image data of the necessary areas can be extracted.

〔The invention's effect〕

As described above, according to the present invention, by reciprocating the image reading device on the recording medium, reading of image data and execution of processing arithmetic processing such as emphasis processing and inversion processing of image data in an arbitrary area are performed. This makes it possible to simplify the subsequent operation of inputting image data.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a flow chart of data processing at the time of image reading processing executed by a CPU in a main control circuit, FIG. 2 is a block diagram of an entire information processing apparatus, and FIG. (A) and (b) are a vertical side view and a vertical front view of the image reading device, FIG. 4 is a block diagram of a control circuit thereof, FIGS. 5 (a) and (b) are rotation detection signal waveform diagrams, and FIG.
FIG. 6C is a block diagram of the moving direction detecting circuit, FIG. 6 is a perspective view showing the moving direction of the image reading device and the rotating direction of the rolling roller, and FIGS. 7A, 7B, 7C and 7C. d) is a timing diagram of an image reading output signal, FIG. 8 is a block diagram of an interface circuit, FIGS. 9 (a), (b) and (c) are explanatory diagrams showing the relationship between a display screen and a data array of a memory. 10 (a) and (b) are explanatory diagrams of an image reading operation and an example of image display. 1 ... CPU, 2 ... Program memory, 3 ... Work memory for information processing, 4 ... Work memory for image processing, 8 ...
... Liquid phase display device, 9 ... Interface circuit, 10 ...
Image reading device, 11 Image reading unit, 15 Keyboard, 45, 46 Photointerrupter, 51 Image sensor, 54 Second switch, 55 Control circuit unit, 58
... movement direction detection circuit, 59 ... start signal generation circuit.

Claims (9)

(57) [Claims] 1. An image reading device which is manually moved on a recording medium, photoelectrically converts an image recorded on the recording medium for every unit movement amount, and outputs image data, and an image reading device which outputs the image data from the image reading device. A memory unit that stores the image data, and a control device that controls these, stores the image data output from the image reading device in the memory unit, and processes the image data stored in the memory unit. In the image reading processing device, the control device, the moving direction detecting means for detecting the moving direction of the image reading device, and in response to a direction detection signal indicating one direction output from the moving direction detecting means, Image data output from the image reading device is stored in the memory unit, and when a direction detection signal indicating another direction is generated, an image is read from the memory unit for each unit movement amount of the image reading device. An image data processing unit that reads data and executes a predetermined processing operation, wherein the predetermined processing operation includes a process of adding enhancement pattern data to the read image data. Read processing unit. 2. An image reading apparatus which is manually moved on a recording medium, photoelectrically converts an image recorded on the recording medium for each unit movement amount, and outputs image data, and an image reading apparatus which outputs the image data. A memory unit that stores the image data, and a control device that controls these, stores the image data output from the image reading device in the memory unit, and processes the image data stored in the memory unit. In the image reading processing device, the control device, the moving direction detecting means for detecting the moving direction of the image reading device, and in response to a direction detection signal indicating one direction output from the moving direction detecting means, Image data output from the image reading device is stored in the memory unit, and when a direction detection signal indicating another direction is generated, an image is read from the memory unit for each unit movement amount of the image reading device. An image data processing unit that reads data and executes a predetermined processing operation, wherein the predetermined processing operation includes an inversion process of inverting the read image data. apparatus. 3. An image reading apparatus which is manually moved on the medium, photoelectrically converts an image recorded on the recording medium for every unit movement amount, and outputs image data, and an image reading apparatus which outputs the image data from the image reading apparatus. A memory unit that stores the image data, and a control device that controls these, stores the image data output from the image reading device in the memory unit, and processes the image data stored in the memory unit. In the image reading processing device, the image reading device is provided with a reading processing range changeover switch, and the control device is provided with a moving direction detecting means for detecting a moving direction of the image reading device and an output from the moving direction detecting means. In response to a direction detection signal indicating one direction, image data output from the image reading device is stored in the memory unit, and when a direction detection signal indicating the other direction is generated. An image data processing unit that reads image data from the memory unit for each unit movement amount of the image reading device in response to a signal from the reading processing range changeover switch and executes a predetermined processing calculation process. Characteristic image reading processing device. 4. An image reading processing apparatus according to claim 3, wherein said predetermined processing operation includes a process of erasing read image data. 5. The image processing apparatus according to claim 4, wherein said predetermined processing calculation processing is processing for erasing read image data when said reading processing range changeover switch is depressed. Image reading processing device. 6. An image reading processing apparatus according to claim 3, wherein said predetermined processing operation includes a process of adding emphasized pattern data to the read image data. 7. A processing method according to claim 6, wherein said predetermined processing calculation processing is processing for adding emphasis pattern data to image data read when said reading processing range changeover switch is depressed. An image reading processing device characterized by the above-mentioned. 8. An apparatus according to claim 3, wherein said predetermined processing operation includes an inversion process for inverting the read image data. 9. A method according to claim 8, wherein said predetermined processing calculation processing is a reversal processing for reversing image data read when said reading processing range changeover switch is depressed. Characteristic image reading processing device.