JPS5994180A - Picture inputting device - Google Patents

Abstract

PURPOSE:To select picture data of any picture quality and input comparing binary coded picture patterns by binary coding signals obtained by scanning a form optically by many slice levels and storing. CONSTITUTION:A form 2 is carried by a form running mechanism 1, and an original picture 3 recorded on the form 2 is scanned optically by lamp 4 and a lens 5 and a picture signal converted to electric is outputted from a photoelectric conversion element 6. This picture signal is converted to digital signal by an A/D converter 8 and supplied to plural comparators 10A-10X. Different slice level set in slice level setting circuit 9A-9X are added to comparators 10A- 10X. Signals taken in by timing of an information taking in/storing timing generating circuit 11 are compared with each slice level by comparators 10A-10X and binary coded and stored in a picture information storing memory 12. Picture data of any picture quality on the form 2 is selected by a display and editing circuit 13 and displayed on a display 18.

Description

[Detailed description of the invention] [Field of application of the invention] This invention optically captures the image on the form.

An image whose image pattern is obtained by electrical conversion.

Regarding input devices.

[Prior art] 1° Conventional image input devices optically capture images on forms.

Converts the reflected light from the form into an electrical signal.

Then, this electrical signal is converted into an image pattern by binarizing it at a single slice level.

The image pattern is displayed on the display device, and after being checked by operator 2 (1), it is stored in the storage device or external device.

I saved it or printed it. For this device,

Only the images that match the rice level are very clear.

There is a point.

In addition, the amplitude of the electrical signal output from the photoelectric conversion unit and the
Some devices have a means to make the slice level of the digitization circuit variable, but with such devices, the form is conveyed several times and the optimal signal is selected among them.

Since this method selects the amplitude of the signal or the slice level for binarization, it has the drawback that the operation is complicated.

[Purpose of the invention]

An object of the present invention is to provide an image input device having a function of easily selecting the image quality of an input image.

　　　　　　　　　　　1-.

[Summary of the invention]

The feature of this invention is that the form can be processed optically.

The photoelectric conversion signals obtained by scanning the

Binarize and store these two values at the rice level.

The goal is to display and compare converted image patterns.

[Embodiments of the invention]

An embodiment of the present invention will be described in detail below with reference to the drawings.

Explain in detail.

FIG. 1 is a block diagram showing the configuration of an image processing apparatus in an embodiment of the present invention. FIG. 2 is a diagram showing an analog signal waveform of a photoelectrically converted image. FIG. 3 is a diagram showing the relationship between a signal obtained by converting an analog signal into a multivalued digital signal and the slice level. FIG. 4 is a diagram showing the timing at which signals binarized at a plurality of 1° slice levels are taken into the storage device. Figure 5 is memory.

Figure 6 shows an image pattern captured by the device. Figure 6 shows an image captured at multiple slice levels.

FIG. 6 is a diagram showing an example in which patterns are displayed simultaneously. , 5th 7th
The figure shows images captured at multiple slice levels.

FIG. 6 is a diagram showing an example of sequentially displaying image patterns.

Ru0 In Figure 1, the form traveling mechanism 1 is electrically operated.

Transport form 2 to be taken. Form 2 is transportation. .

・ 3 ・ Inside, the original image 3 recorded on the form 2 is optically scanned. That is, the lamp 4 illuminates the original image 3, and the reflected light is projected onto the photoelectric conversion element 6 by the imaging lens 5. By conveying the form 2, the irradiation position of the original image 6 is sequentially advanced. The photoelectric conversion element 6 is, for example, a one-dimensional semiconductor CCD.
The signal amplification circuit is composed of a sensor and sends electric signals corresponding to the black and white of the original picture 3 that are sequentially formed into images to the signal amplification circuit 7 by the evening and timing signals from the information acquisition/storage timing generation circuit 11. 7 amplifies the 1° electrical signal received from the charging conversion element 6 and converts it into analog and digital.

An electrical signal is sent to the switching circuit 8. analog digital.

The signal conversion circuit 8 receives the signals from the signal amplification circuit 7.

Converts analog electrical signals to multi-value digital signals.

exchange. For example, the analog input 1° electrical signal 26 shown in FIG. 2 may be converted into a multi-level digital signal shown in FIG.

Convert to No. 27. Analog/digital conversion port.

A circuit 8 compares the converted digital signal with a comparison circuit 10A.

Send to 10B, 10c, ... 10X. Comparison circuit 10A
, 10E,.

10c, . . . 10x are analog-to-digital conversion circuits.

・41 Information is taken in from the digital signal sent from 8/.

The information is taken in at the information take-in timing 29 (see FIG. 4) of the storage timing generation circuit 11, and is set in advance.

Gradually different slice levels set by the section.

5 slice level designation circuits 9A, 9B, 9C with 28428B, 28C...28X (see Figure 3)
... Compare with the slice level of 9X, binarize it, create an image pattern, and store it at a timing of 30.4, 30B.
, 30C...30X.

(See FIG. 4) to write the image information into the image information storage memory 12.

FIG. 5 shows ten image patterns stored in the image information storage memory 12 and the storage format 31. - The image information storage memory 12 has storage areas for each slice level divided into areas in advance, and image patterns are stored in a bit array of 1.
15 display editing circuit 13 is connected to image information storage memory 12.

The image data of each row of slices is retrieved and displayed.

Screen data written to and displayed in the image storage memory 16.

on the display control memory 14 corresponding to the response.

Writes the address of the display image storage memory 16.

The display/edit circuit 13 then displays the code information.

If so, the display code pattern on the display character 5 pattern memory 15 that has been set in advance.

Displays the address corresponding to the screen address.

write to control memory 14.

The display circuit 17 receives the image storage memory 16 and display character patterns from the display control memory 14.

Obtain the addresses on memory 15 and use these addresses.

Image patterns and character patterns stored in .

- is read out and sent to the display section 18.

The display unit 18 displays image patterns 51α, 51b, . . . 51 that are binarized at each slice level as shown in FIG.
．． 21- are simultaneously displayed side by side on the display 50. The operator selects which pattern is clear and optimal among the arranged patterns, and presses the keyboard 21.
Perform key operations to select the optimal pattern.

The selection signal input by key is sent to the data transfer control circuit 19 under the control of the keyboard control circuit 20. The data transfer control circuit 19 reads out the image pattern of the optimum slice level from the image information storage memory 12 according to the input selection signal, sends it to the storage control circuit 22, and transfers it to the storage device 23.
(for example, a flexible disk device), or
Or transmit the image pattern.

The signal is sent to the speed control circuit 24 and output to the external device 3 via the transmission line 25.

Note that the patterns 51α, 51A, . . . are displayed simultaneously.
.

51r can be arranged vertically or the screen 50 can be divided vertically and horizontally.

It is easy to think of displaying it in an easy-to-read manner.゛Not yet.
If the image to be input is thick, it may be possible to project patterns at each slice level of only 10 parts of the original image at the same time.

Furthermore, the same effect can be obtained by simultaneously displaying images on a single screen. For example, the screen 53 as shown in FIG.
A display pattern 52α of the upper slice level is displayed, and a table of the next slice level is displayed.

If the pattern 52 is displayed when a pattern is instructed from the keyboard 12, the pattern 52 can be displayed on the same screen.

The buttons 52α, 52b...52x are changed by operator's operation.

Therefore, the operator should compare the image quality.
.

This becomes possible, and the same effect as in FIG. 6 can be obtained. .

Furthermore, in this embodiment, slices are provided in stages.

Although various image qualities were obtained in this way, it is clear that similar effects can be obtained even in a single slice by applying a stepwise bias to the signal obtained from the photoelectric conversion element 6°.

Also, in this example, at separate slice levels.

The captured binarized data is divided into memory areas.

For example, each row of slices.

All 1941112 in the same area with length display etc.
The same effect can also be obtained by storing minute patterns in multiple values.

Additionally, although a flexi-pull disk device is used as the output device in this embodiment, it also includes a magnetic tape device, a source disk device, and a central processing unit in channel connection.

It may be placed in the same place.

〔Effect of the invention〕

As described above, according to the present invention, on the form.

Any image quality can be achieved by simply capturing the image once optically.

image data can be selected and input. .

・　8　・

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention. Figure 2 is a waveform diagram of the analog signal after charging conversion.
The figure shows the relationship between the signal/signal converted to a multi-level digital signal and the slice level. Figure 4 is a time chart showing the time and mink of capturing/storing a binarized image pattern. Figure 5 6 is a diagram showing the image pattern imported into the storage device and the storage format, and FIGS. 6 and 7 are diagrams showing the displayed image pattern.
I"・2...Form, 3...Original image, 6...Photoelectric conversion element, 7...Signal amplification circuit, 8...Analog digital. Le conversion circuit, 9A, 9B, 9C. ...9X...Slice level.Bell specified circuit, 10A, 10B, 10C...10
X...Comparison. Circuit, 11... Information acquisition/storage timing generation. Circuit, 12... Image information storage memory, 13.
··display. Editing circuit, 14...Display control memory. 15... Character pattern memory for display, 16... Image storage memory for display, 17... Display circuit. 18...Display section. U, 1 Otsu no -432-: 27 Ward

Claims (1)

[Claims] 1. In an image input device that optically captures an image on a form, converts the captured image into an electrical signal, and then binarizes it to obtain an image pattern, a large number of photoelectrically converted signals are used. The present invention further comprises a means for binarizing at a slice level, a storage means for storing a plurality of binarized image patterns, and a display means for displaying the plurality of image patterns. Feature 11: Image input device. 2. Multiple pulses of the photoelectrically converted signals at the same time. A patent that features binarization at the chair level. An image input device according to claim 1. 3. Claim No. 3, characterized in that the plurality of image patterns are simultaneously displayed at 1° on a display means. The image input device according to item 1. 4. The image on the form was captured optically and imported. After converting the image into an electrical signal, we decided to binarize it. means for stepwise amplifying a photoelectrically converted signal in an image input device to obtain an image pattern; and means for binarizing the signal at a single slice level at each stage;
The present invention includes a storage means for storing a plurality of binarized images/patterns and a display means for displaying the plurality of image patterns. Characteristic image input device. 5. The image input device according to claim 4, wherein the plurality of image patterns are displayed simultaneously on a display means.