JPH06215100A - Image filing equipment - Google Patents

Abstract

(57) [Summary] [Object] To provide an image filing technology capable of improving the visibility of individual monochrome binary image data when a plurality of monochrome binary image data are combined and displayed in color. [Structure] A control device 1, a scanner 2, a printer 4,
An image memory 3, an image storage unit 6 such as an optical disk, an image compression / decompression unit 5 for performing compression and decompression operations of image data, a display unit 15 for displaying image data in color, and an image display operation for this display unit 15. And a common bus 7. The display control unit 16 allocates a plurality of monochrome images to the R plane 9, the G plane 10, and the B plane 11 according to the priority order. An image filing device including a priority combining unit 12, a parallel / serial conversion unit 13, and a D / A converter 14 that controls each monochrome image to have a specific display color according to the priority order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image filing device, and more particularly to a technique effective when applied to an image filing device for synthesizing a plurality of monochrome binary image data, converting the data into color image data, and displaying the color image data.

[0002]

2. Description of the Related Art For example, as a method for rationalizing office work, etc., a large amount of documents and image data can be stored in a recording medium such as a large-capacity optical disc, and high-speed search / display / printing of registered data can be performed. The image filing device based on the above has become widespread.

By the way, there is an image filing apparatus having a function of synthesizing and displaying plural kinds of image data.

For example, in the technique disclosed in Japanese Patent Laid-Open No. 63-223972, when a plurality of types of image data are combined and displayed on a color image display means, only specific image data is displayed in color and The image data of 1 is controlled to be displayed in monochrome.

[0005]

However, in the case of the prior art as described above, since control is performed so that a specific one is a color image and the other is a monochrome image, three or more types of monochrome images are used. When it is desired to synthesize and display image data, there is a problem that a specific color image cannot be distinguished from other images. Also, because the processing is based on color images,
There is also a problem that conventional monochrome image data cannot be effectively used.

The problems in the combining process when an image is treated as digital data will be described in more detail below.

When a monochrome image is combined and displayed as it is, it is obvious that it is difficult to image the individual images after the combination. Similarly, when multiple monochrome images are combined and displayed in color,
For example, for three monochrome images, R plane and G plane, respectively.
Considering the case where the images are captured as plane and B plane images and combined, the monochrome image which is the original image has undergone color conversion, so that it can be viewed at a glance on the display screen. However, the area where the individual images are overlapped is displayed in another color, which makes it impossible to distinguish between a composite image and a portion without data, which causes a problem of low visibility.

It is an object of the present invention to provide an image filing technique capable of improving the visibility of individual monochrome binary image data when a plurality of monochrome binary image data are combined and displayed in color. It is in.

The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.

[0010]

Among the inventions disclosed in the present application, a brief description will be given to the outline of typical ones.
It is as follows.

That is, the image filing apparatus of the present invention synthesizes a color display image by synthesizing information storage means for storing a plurality of image data, image display means capable of color display, and a plurality of monochrome binary image data. Image conversion means for converting into data, the image conversion means includes a first means for giving priority to a plurality of monochrome binary image data corresponding to a specific display color, and individual monochrome binary image data, A second means for synthesizing so as to obtain different specific display colors corresponding to the priority order is configured.

[0012]

As an example, consider displaying and dividing three monochrome binary image data in three colors.

First, the first means uses each of the three monochrome binary image data as an R for use in the image display means.
It is sorted into planes, G planes, and B planes and stored. In this case, if the order of priority is R, B, and G, the monochrome binary image data to be displayed with the highest priority is sorted into R, B, and G in order.

Next, the second means synthesizes the images so as to follow the priorities of the R, B, and G planes.

That is, when the first priority monochrome binary image data is α, the second priority monochrome binary image data is β, and the third priority monochrome binary image data is γ, it is illustrated in FIG. 4A. A combination operation is performed by a logical operation.

As a result, the first priority monochrome image α is red, the second priority monochrome image β is blue below it, and the third priority monochrome image γ is black below it, in the white background. Since they are displayed in different colors, the monochrome binary image data of α to γ can be clearly displayed on the image display means according to their respective priorities.

Generally, for example, assuming that there are n pieces of monochrome binary image data, X ₁ , X ₂ , ... X _n are arranged in descending order of priority, and the first priority color is A ₁ , Assuming that the second priority color is A ₂ and the nth priority color is X _n , the first priority 2 means performs the logical operation illustrated in FIG. The value image data can be clearly displayed and divided in n colors corresponding to the priority order.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An image filing apparatus which is an embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing an example of the configuration of the image filing apparatus of this embodiment, and FIG. 2 is a block diagram showing a part thereof in more detail.

The image filing apparatus of this embodiment comprises a control unit 1 for controlling the whole, a scanner 2 and a printer 4 which are image input / output devices, an image memory 3 for temporarily storing image data, and image data. Image storage unit 6 such as an optical disk for permanently storing data, an image compression / decompression unit 5 for performing compression and decompression operations of image data when inputting and outputting the image data to the image storage unit 6, and displaying the image data in color. And a display control unit 16 for controlling an image display operation on the display unit 15.
They are connected via a common bus 7.

The display control unit 16 controls the R, G, and R of the three primary colors of light.
An R plane 9, a G plane 10, and a B plane 11 that temporarily hold B digital display data, a color conversion section 8 that controls writing to each of these planes, and read digital data from each plane. , A priority synthesizing unit 12 for performing a synthesizing operation in accordance with a priority order given to each plane as described later, a parallel / serial converting unit 13 for performing parallel / serial conversion of synthesized digital data, and digital R, G, It is composed of a D / A converter 14 for converting B data into an analog RGB signal.

The control device 1 controls the entire image filing device via the bus 7, and controls the scanner 2 and the printer 4.
Image input / output command to the image memory 3, address management on the image memory 3, image compression / expansion command to the image compression / expansion unit 5, image registration / search command to the image storage unit 6, and writing control to the color conversion unit 8. Issue a directive. Further, the image data is transferred from the image memory 3 to each of the R plane 9 to the B plane 11 via the bus 7.

The scanner 2 receives an image input command from the control device 1, separates an image on a desired input medium into RGB three primary colors, and stores it in the image memory 3 via the bus 7. The printer 4 receives the image output command from the control device 1, and receives the image from the bus 7
The data in the image memory 3 is read out via the and printed.

The image memory 3 temporarily stores the image data fetched from the scanner 2 as well as the compression waiting data and the decompressed image data output by the image compression / decompression unit 5.

Upon receiving the image compression command from the control device 1, the image compression / expansion unit 5 reads the image data from the image memory 3 via the bus 7, encodes it, and writes it to the image memory 3 via the bus 7. When receiving an image expansion command from the control device 1, the image compression waiting data is read from the image memory 3, expanded into image data, and written in the image memory 3.

When receiving the image registration command from the control device 1, the image storage unit 6 reads the image compression waiting data from the image memory 3 via the bus 7 and registers it in the image storage unit 6.

In the display control unit 16, the color conversion unit 8 is
When receiving a write command from the control device 1, the image memory 3
Image data is written to the R plane 9 or the G plane 10 and the B plane 11 via the bus 7.

The priority synthesizing unit 12 synthesizes the image data from the R plane 9, the G plane 10, and the B plane 11 based on the priority given to each plane.

The parallel / serial converter 13 serially converts the parallel digital image data into a D / A converter 14.
Send to.

The D / A converter 14 converts digital data into analog data.

The display control unit 16 includes a D / A converter 14
The analog image data sent from is displayed on the screen as a color image.

An example of the composite conversion of monochrome images in the image filing apparatus of the present embodiment having the above-mentioned configuration will be described.

FIG. 3 shows the first priority monochrome image as α,
Each of the cases where the second priority monochrome image is β, the third priority monochrome image is γ, the first priority plane is the R plane 9, the second priority plane is the B plane 11, and the third priority plane is the G plane 10. An example of the correspondence between an image and each plane is shown.

FIG. 2 shows an example of the circuit configuration of the priority synthesizing unit 12 which performs the color conversion priority synthesis in such a priority order.

The circuit configuration of the priority synthesizing unit 12 is, for example,
R plane 9 (first priority plane), G plane 10
A plurality of selectors 604, 605, and 606 that select the binarized image data of each of the (third priority plane) and the B plane 11 (second priority plane), and all the binarization of the selectors 604 to 606. An AND circuit 611 that obtains a logical product of the image data output after the logical inversion, an AND circuit 610 that obtains a logical product of the logical inversion value of the output of the selector 604 and the output of the selector 605, an output of the selector 604 and an output of the AND circuit 611. OR circuit 612 that takes the logical sum of the outputs of AND circuit 610 and AND circuit 611
And an OR circuit 613 that takes the logical sum of the outputs of
The selector 607, the selector 608, and the selector 609 that select the output of 2 and the output of the OR circuit 613, and the output of each of the AND circuits 611.

As a result, the priority synthesizing unit 12 is configured as shown in FIG.
The logical value of (a) is executed, and the truth table at this time is as illustrated in FIG.

As an example, consider a case where three image data of a map 501, which is a monochrome image, a route map 502, and a power transmission map 503 are combined and displayed. It is assumed that the priority order is from the highest to the power transmission map 503, the route map 502, and the map 501.

First, the color conversion unit 8 writes the first priority monochrome image α (power transmission diagram 503) fetched from the image memory 3 in the R plane 9 in accordance with the target priority order. Furthermore, the second priority monochrome image β (route map 50
2) on the B plane 11 and the third priority monochrome image γ
(Map 501) is written in the G plane 10, respectively.

Next, the priority combination unit 12 performs color conversion priority combination of each plane using the conversion formula illustrated in FIG. The image combined by the priority combining unit 12 is output to the display unit 15 via the parallel / serial conversion unit 13 and further the D / A converter 14.

By the above control, the composite image output to the display unit 15 becomes a composite image 504 illustrated in FIG. That is, the map 501 that is the third priority monochrome image γ, the route map 502 that is the second priority monochrome image β, and the power transmission diagram that is the first priority monochrome image α.
When 03 and 03 are color-converted and priority-combined by the priority composition unit 12 in accordance with the logical expression of FIG. Is
Below that, the second priority route map 502 is displayed in blue, and further below that, the third priority map 501 is displayed in black.

As a result, the power transmission diagram 50 set as the first priority
The operator can clearly imagine the corresponding relationship with the other second priority route map 502 and the third priority map 501 without damaging the information of No. 3.

Although the invention made by the present inventor has been specifically described based on the embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. Needless to say.

For example, a plurality of types of color image data
After each of them is once converted into monochrome binary image data, the above-described color-priority synthesis conversion is performed according to a desired priority order, so that the same effect as in the case of the above-described embodiment can be obtained with respect to a plurality of types of color image data. Can be obtained.

[0044]

The effects obtained by the typical ones of the inventions disclosed in the present application will be briefly described as follows.
It is as follows.

That is, according to the image filing apparatus of the present invention, when a plurality of monochrome binary image data are combined and displayed in color, the visibility of each monochrome binary image data can be improved. The effect is obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of the configuration of an image filing apparatus that is an embodiment of the present invention.

FIG. 2 is a block diagram showing a part thereof in more detail.

FIG. 3 is a conceptual diagram showing an example of an operation of the image filing device which is an embodiment of the present invention.

4A and 4B are explanatory views showing an example of the operation of the image filing device which is an embodiment of the present invention.

FIG. 5 is an explanatory diagram showing an example of the operation of the image filing device that is an embodiment of the present invention.

FIG. 6 is an explanatory diagram showing an example of the operation of the image filing device that is an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 control device 2 scanner 3 image memory 4 printer 5 image compression / decompression unit 6 image storage unit 7 bus 8 color conversion unit (first means) 9 R plane 10 G plane 11 B plane 12 priority combining unit (second means) ) 13 parallel / series conversion unit 14 D / A converter 15 display unit (image display unit) 16 display control unit (image conversion unit) 501 map 502 route map 503 power transmission diagram 504 composite diagram 604 to 606 selector 607 to 609 selector 610, 611 AND circuit 612, 613 OR circuit α First priority monochrome image (monochrome binary image data) β Second priority monochrome image (monochrome binary image data) γ Third priority monochrome image (monochrome binary image data)

Claims (1)

[Claims] 1. Information storage means for storing a plurality of image data, image display means capable of color display, and image conversion means for synthesizing a plurality of monochrome binary image data to convert them into color display image data. The image conversion means includes first means for giving a priority order corresponding to a specific display color to the plurality of monochrome binary image data, and each of the monochrome binary image data corresponds to the priority order. An image filing apparatus comprising: a second means for synthesizing so as to obtain specific display colors different from each other.