JPH034150B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an image input device that can input only an image of a desired area.

[Technical background of the invention and its problems] With the development of information processing technology, attempts have been made to directly input various images. One of them is as shown in FIG. 9, in which a line sensor 1, a guide 2, a moving distance measuring device 3, etc. are built into the probe body 4.
There has been an image input device that can easily input a desired image portion by scanning the image. This device is characterized by being small, lightweight, inexpensive, and easy to operate. However, the actual sensor part of the line sensor 1 is hidden inside the probe body as shown in FIG. The operator cannot accurately know the position of the sense line when it is placed on the image. Therefore, for example, when it is desired to read only part of an image, there is a problem in that the sense line cannot be aligned with the start line of the desired read image. Even if the sensor part is attached to the long side of the line sensor 1 as shown by the dashed line in the bottom view of the probe body in FIG. Due to the influence of the thickness of the portion, the width of the guide, etc., problems similar to those described above occur.

For this reason, conventional methods have been used in which a large area including the desired area is input in advance, and unnecessary portions are trimmed using software in later editing operations. However, this editing work is very tedious and requires a certain level of skill on the part of the operator, and in order to accomplish the work, large-scale equipment is required, which is very inconvenient and impractical. There was a problem.

[Object of the Invention] The present invention improves the disadvantages of the conventional device described above, and allows the user to start inputting a desired image even if the exact position of the actual sense line attached to the bottom of the probe body is unknown. It is an object of the present invention to provide an extremely highly functional and practical image input device that can specify the end of input as intended by an operator.

[Summary of the Invention] In order to achieve the above object, in the present invention, the starting switch of the image input device equipped with the above line sensor, guide, moving distance measuring device, starting switch, etc. is turned on or off, and the front of the probe body is turned on or off. The reference position, for example, the front side position of this probe body,
means for controlling the reading of the image to start or end when the line sensor moves by the number of lines corresponding to the distance from the sensing section of the line sensor that actually reads the image; To provide an image input device that allows accurate input.

[Effects of the Invention] According to the present invention, by simply aligning the front reference position of the probe body with the start line and end line of the desired image, troublesome post-editing work, etc., can be done only for the desired image. This allows for accurate and easy input without any hassle, resulting in extremely high operability and practicality.

[Embodiments of the invention] The present invention will be explained in detail below with reference to the drawings.

FIG. 1 is a schematic diagram of an apparatus according to an embodiment of the present invention;
FIG. 2 is a sectional view of the main body used in the apparatus of FIG. 1. 1 is a line sensor, for example, a light source and a light sensor array arranged in one direction.
This line sensor 1 is attached to the probe body 4 with the image input surface facing downward. A guide 2 made of, for example, a rubber roller is attached to the probe body 4 slightly below the line sensor 1 so as to guide the probe body 4 perpendicularly to the arrangement direction (line direction) of the line sensor 1 with respect to the read image. It is placed prominently. Also, a rotary encoder 3 is adopted on the rotation axis of this guide 2 to detect movement and measure distance.
This generates a pulse signal each time the guide 2 rotates by a predetermined angle, that is, each time the probe body 4 moves a predetermined distance.
The data is input into the internal memory, read out, and displayed on the display screen. This control device 7 employs a microcomputer consisting of a CPU and the like. Reference numeral 6 denotes a start switch which can specify the start and end of reading by aligning the front side of the probe body 4 with the start line and end line of the read image. 8 is a mark indicating the senseable width.

Next, the general operation of the image input device will be explained with reference to FIGS. 3 to 6.

First, the letter "A" written on the manuscript as shown in Figure 3.
If you want to input only the input data and remove unnecessary parts, align the front side a of the probe body 4 with the input start line, turn on the start switch, and specify the start of input. The operator then moves the probe body perpendicular to the line direction, causing the line sensor to read the letter "A". However, as described above, since the input start line a and the actual sense line position b are different, unnecessary images are captured by the number of lines between ab and ab. Then, turn on the start switch for the number of lines corresponding to this interval,
When a movement pulse is generated from the movement distance measuring device, the input is fed by the number of lines mentioned above (the number of lines between ab and ab), and from the point when the input start position and the actual sensor position b match, that is, the operator It automatically matches the unknown sense line and starts inputting it into memory. Along with scanning, pulses from the moving distance measuring device control the image input, and each line is input into the memory.

Further, as shown in FIG. 4, when the input end line and the probe body match, the probe body is stopped, the start switch is turned OFF, and the probe body is moved to a certain extent. As described above, the number of lines is set to correspond to the distance between the input end line and the actual sense line position d, and the end is skipped between the input end line and the actual sense line, and the input is continued. The above-mentioned movement to a certain extent is sufficient to pass the letter "A" as shown in FIG. 5, and as a result, only the desired image in FIG. 6 can be input into the memory.

FIG. 7 shows a specific configuration of a control device that executes such control. Further, the control process is shown in the flowchart of FIG. First, at the start point, align the front side of the probe body with the input start line (step), and turn the start switch 7.
Turn on 4 (step). Then, a signal pulse from the start switch 74 causes the control I/O device 85 to be activated by a command from the microcomputer 71.
to the down counters 72 and 73 via the third
As shown in the figure, a value corresponding to the number of lines corresponding to the interval between ab and ≠ minutes is stored (step).
Next, when the probe body is moved, the moving distance measuring device 75 generates a number of pulses corresponding to the moving distance (number of lines) (step). This pulse is supplied as a clock to the down counter 72 via the AND circuit 80. As a result, the down counter 72 counts down (step), and when the count reaches 0, the F/F (flip-flop) 77 is set (step).
Further, the AND circuit 79 is opened by the signals from this F/F (flip-flop) 77 and the moving distance measuring device 75, and the OR circuit 83 and the control I/O
The signal is sent to the microcomputer 7 via the device 85.
Reach 1. And this microcomputer 7
1, the line sensor 76 senses data line by line from the start line of the desired area via the data I/O device 86. This data is sent to the microcomputer 71 via the data I/O device 86.
input into the memory of (step).

Then, when the front side of the probe body matches the input end line, the probe body is stopped and the start switch 74 is turned OFF (step). A signal from this start switch reaches the AND circuit 81 via the NOT circuit 84. By further moving the probe body, this AND circuit 81 opens a gate together with a pulse from the moving distance measuring device 75, and this signal is used as a clock to clock down the down counter 7.
3. As the movement continues, a pulse from the moving distance measuring device 75 causes the line sensor 76 to
continues to be input, and the down counter 73 counts down the stored value one line at a time (step). And this down counter 7
3 becomes 0 (step), the F/F (flip-flop) 78 is set and the AND circuit 82 is opened together with the pulse from the moving distance measuring device 75. With this pulse, the microcomputer 71 automatically ends the input via the OR circuit 83 and the control I/O device 85 (step).
As a result, a desired image can be accurately and easily input into the memory without any troublesome subsequent editing work, resulting in extremely high operability and practicality.

Note that the present invention is not limited to the above embodiments. For example, although the front reference position of the probe body is set at a in FIG.

Alternatively, the start switch may be turned OFF when the input end line coincides with the rear side of the probe body, and a counter may be provided to delete the number of extra lines taken in, and the number of lines between b and c in Figure 2. . Further, the above-mentioned starting switch may be modified in various ways without departing from the spirit of the present invention, such as using a touch sensor and turning on the switch automatically when the switch is gripped.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of the operability of the embodiment, Fig. 2 is a cross-sectional view of the probe body and its front side position a, rear side position c, and sensor position b.
Figure 5 shows the actual operation process viewed from above.
FIG. 6 is a diagram of the desired area obtained thereby, and FIG.
The figure is a block diagram of the hardware configuration, Figure 8 is a flowchart showing the flow, Figure 9 is a configuration diagram of a conventional probe main body device, Figure 10 is a bottom view of the probe body, and Figure 11 is a temporary line sensor. FIG. 3 is a bottom view of the probe body showing the position of the probe body. DESCRIPTION OF SYMBOLS 1... Line sensor, 2... Guide, 3... Traveling distance measuring device, 4... Probe body, 5... Gripping part, 6... Starting switch, 7... Microcomputer, 8...
...Arrow.

Claims (1)

[Claims] 1. A line sensor, a probe body to which the line sensor is fixed, a guide provided on the probe body to move the probe body perpendicularly to the line direction of the line sensor with respect to a reading image, and a guide for reading the line sensor. A moving distance measuring device that measures the moving distance with respect to the image, a starting switch, and after opening/closing the starting switch, the probe body moves a distance corresponding to the distance between the front reference position of the probe body and the sensing part of the line sensor. An image input device comprising means for controlling the line sensor to start or end reading an image when the line sensor moves.