JPS62136982A - Image retrieval device - Google Patents

Abstract

PURPOSE:To obtain a reproduced image with high picture quality by storing a correction data corresponding to the characteristic of an input device with a bit of image information from each image input device, and correcting the bit of image information reproducing a corresponding correction data in a reproduction time. CONSTITUTION:The bit of image information is read out from an image storage device 4, and is supplied to a display device 6, and a correction is performed so as to obtain the image with good picture quality by adjusting a variable resistor 55 with an adjusting thumbscrew 54 watching a displayed image. Meanwhile, a voltage obtained at the variable resistor 55 is stored at a storage device 3 as the correction quantity of the correction data with an address through an A/D conversion circuit 51, an I/O port 50, and a controller 1. Next, in an image retrieval, by connecting a change-over switch 53 to (b) side with a switching signal SW, and indicating a bit of requested image information on a keyboard 2, the address and the correction data are read out from the storage device 3, and the correction quantity is supplied to a correction circuit 56, and also, the bit of image information is read out from the image storage device 4 by the address, and is supplied to the display device 6 after the correction at the correction circuit 56.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an image retrieval device that reads out color image information, moving image information, etc. filed on a video disc or the like.

[Background of the invention]

2. Description of the Related Art Conventionally, image search devices are known in which image information such as documents is recorded on a video disk such as an optical disk, and predetermined image information is reproduced based on an address attached to each piece of image information. (For example, JP-A-59-17
Publication No. 8567).

In such conventional technology, image information from an image input device is recorded on a video disc in advance, and various sources can be considered as the image input source.

By the way, such image retrieval devices can be used in a very wide range of fields. For example, when used as service equipment, a video camera or a video tape recorder is used as an image input device, and color images or moving images are used as image information. The results are recorded on a video disc. However, each such image input device has unique characteristics), and for this reason, image information from the image input device is recorded on a video disk, and then this image information is played back and displayed on a monitor. If you display the image in

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide an image retrieval device that solves these problems and can obtain reproduced images of good quality for image information from any image input device.

[Summary of the invention]

In order to achieve this objective, the present invention records image information from each image input device in an image storage device, and also stores correction data such as the type of correction and amount of correction according to the characteristics of the image input device. The present invention is characterized in that the image information is stored at the same time, and when the image information is reproduced, correction data corresponding to the image information is also reproduced, and the image information is corrected based on the correction data.

[Embodiments of the invention] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an image retrieval device according to the present invention, in which 1 is a controller, 2 is a keyboard, 3 is a storage device, 4 is an image storage device, 5 is a correction device, and 6
7 is a display device, and 7 is an image input device.

In the figure, the image storage device 4 is, for example, a video disk, and image information such as color images and moving images from the image input device 7 is stored in the address and left side, and correction data for each image information is stored in the image. It is stored in the storage device 3 together with the address for the image information in the storage device 4.

Such correction data is obtained by storing the -gI information in the image storage device 4, reading it out, and displaying the output information on the display device 6 so that a person skilled in image quality correction can obtain the best image quality. This is obtained by adjusting the correction device 5.

Next, when performing an image search, first use the keyboard 2
Specify the desired image information using .

As a result, the controller 1 reads out the address and correction data for this specified image information from the storage device 3, sends this correction data to the correction device 5, and also reads out the specified image information from the image storage device 4 based on the address. Let's do it. In the correction device 5, correction amounts are set for brightness, contrast, image quality adjustment, etc. based on this correction data, and image information read from the image storage device 4 is corrected. The corrected image information is supplied to the display device 6 and displayed.

FIG. 2 is a block diagram showing a specific example of the correction device 5 in FIG. 1, in which 50 is an I10 port, 51 is an A/D
(analog/digital) conversion circuit, 52 is a D/A (
53 is a changeover switch, 54 is an adjustment knob, 55 is a variable resistor, and 56 is a correction circuit. Parts corresponding to those in FIG. 1 are given the same reference numerals.

This specific example makes it possible to create correction data for each piece of image information stored in the image storage device 4 and to correct the image information using the correction data.

The operation of this specific example will be explained below.

All necessary image information is stored in advance in the image storage device 4 along with addresses. First, when creating correction data, under the control of the controller 1, the changeover switch 53 is activated by the changeover signal SF from the I10 boat 50.
is connected to the α side.

In this state, image information is read out from the image storage device 4 in address order and supplied to the display device 6 via the correction amount N56. By operating the adjustment knob 54 and adjusting the variable resistor 55 while looking at the displayed image at this time, the correction circuit 56 uses the image information so that an image of good quality can be obtained on the display device 6. Make corrections.

On the other hand, the voltage V obtained by the variable resistor 55 is converted into digital data by the A/D conversion circuit 51 and is supplied to the controller 1 via the I10 port 50, but the reproduced image of the best quality can be obtained by the display device 6. At this time, by operating the keyboard 2 (Fig. 1), the digital data supplied to the controller 1 at this time is taken in as the correction amount of the correction data, and is stored together with the address in the storage device 3 (Fig. 1). is stored in

Although only one adjustment means is shown in Figure 2, similar adjustment means are provided for each type of correction such as brightness, contrast, and image quality adjustment, and all of these adjustment means are When the adjustment is completed, by operating the keyboard 2, the controller 1 sequentially reads the correction amount for each υ, and the address of the image information displayed on the display device 6 in the image storage device 4.

This is stored in the recording device 3 as correction data together with data representing the type of correction.

The above operations are performed for each image information read from the image storage device 4, and addresses and correction data for all image information are stored in the recording device 3.

Next, in the case of image search, under the control of the controller 1, the switching signal 5FK from the I10 boat 50 connects the switching switch 53 to the b side. As explained above, when desired image information is specified using the keyboard 2 (Fig. 1), the controller 1 reads out the address and correction data for this from the storage device 3 (Fig. 1), and selects the corrected image information from among the correction data. Quantity I10 Boat 50, D/A
The signal is supplied to a correction circuit 56 via a conversion circuit 52 and a changeover switch 53.

On the other hand, specified image information is read from the image storage device 4 according to the address read from the storage device 3.

This image information is subjected to a predetermined correction by the amount of correction supplied by the correction circuit 56, and then supplied to the display device 6.

Of course, in this case as well, the correction circuit 56
A correction amount is supplied to K, and corrections such as brightness, contrast, and image quality adjustment are performed.

In addition, for example, in order to adjust the brightness and contrast, K is used as a correction circuit 56, such as the one published by Seibundo Shinkosha.
78779, [Mitsubishi Semiconductor Data Book JP3-73
The circuit described in can be used.

FIG. 3 shows a specific example of data stored in the storage device 3 when such a correction amount f5 is used.

As is clear from the figure, image information A, B, C0...
For each, an address indicating the storage position in the image storage device 4,
The amount of correction for each correction α, b, .

When searching for an image, the name of the image information to be searched is specified using the keyboard 2. Now, if we specify image information A with the keyboard 2, the controller 1 first retrieves the address ro0001J for this image information A from the storage device 3.
Correction amount of correction α1. Correction amount 1. ... is read out from the image storage device 4 using this address (oooolJ), and this image information A is converted into each correction amount of correction α, h, ... read out by the correction device 5. Correct accordingly.

In this way, the image information read from the image storage device 4 is corrected, and a reproduced image of good quality can be obtained on the display device 6.

When registering the data shown in FIG. 3 in the recording device 3, first, an image information name is input using the keyboard 2, and the controller 1 captures this.

Next, image information corresponding to this image information name is obtained from the image input device 7, and is written in a predetermined position of the image storage device 4 together with the address. This operation is performed under the control of the controller 1, and the controller 1 also holds an address for this image information. And the image storage device 4
This image information is read out from and supplied to the display device 6 via the correction device 5. In the correction device 5, correction adjustment of image information is performed as described above, and the display device 6
The correction amount when the best quality reproduced image is obtained is input to the controller 1. The image information name, address, and correction amount imported into the controller 1 are then registered in the storage device 6.

The above operations are performed for each piece of image information to be stored in the image storage device 4, so that the data stored in the storage device 3 becomes as shown in FIG.

When certain image information stored in the image storage device 4 becomes unnecessary and no longer needs to be searched, all data or the image information name for this image information in the storage device 3 may be deleted. As a result, it is no longer possible to search for the original image information, and this image information is isometrically deleted from the image storage device 4. therefore,
Even if the image storage device 4 is non-erasable, such as an optical disk device, the same effect as in the case of erasing can be obtained.

FIG. 4 shows another specific example of data stored in the storage device 3.

This specific example focuses on the fact that the amount of correction of image information obtained from different image input devices is different from each other, but the amount of correction of image information obtained from the same image input device is the same, and the data stored in the storage device 3 is This allows the amount to be reduced.

In this specific example, the data shown in FIG. 4 (α) and the data shown in FIG.
Two types of data, the data shown in I, are stored in the storage device 3. Now, assuming that different video cameras are used as the image input device 7, the data shown in FIG. 4 (C1 are image information names A and B.

C1... and addresses 100, 101, 102 representing the recording positions of these image information in the image storage device 4.
.

. . . and the type of image input device 7 from which the image information was obtained, that is, camera 1. Camera 2. It consists of camera 3... On the other hand, the data shown in FIG. 4 (A
@ ' Consists of the correction amount for N...

According to such data, image information A shown in FIG.
The amount of data stored in the storage device 3 is much smaller than in the case where the correction amount for each correction α* b I ON is stored.

Image search for this specific example is performed as follows.

Now, if you specify image information B on keyboard 2,
This is imported into the controller 1, and the data shown in FIG. 4 (α) in the storage device 3 is searched.

As a result, the address 11otJ for the image information B and data representing "camera 1" are read by the controller 1. The controller 1 further stores data in FIG. 4 (
The data shown in AI is searched and the correction amount of correction α for "camera 1" is 100. Correction amount 101 of correction C 110. Read...

The subsequent operations are the same as those described above for the data shown in FIG. A reproduced image with good image quality can be obtained on the display device 6.

The case where the correction data shown in FIG. 4 is stored in the storage device 3 is similar to the case where the correction data shown in FIG. 6 is stored, but the camera 1. Camera 2, camera 3. The data representing ... is input from the keyboard 2, and once corrected α#
Since there is no need to register the correction amount again for an image input device in which the correction amount for A I e I... is registered, for example, in FIG. 4, image information A obtained from the video camera 1 After registering the image information E, C, and D obtained from the same video camera 1, the image information E, C, and D obtained from the same video camera 1 are simply stored in the image storage device 4, and the image information name, address, and data representing the video camera 1 are stored. Climbing to device 3 is turned off.
This eliminates the need to set the correction amount in the correction device 5. Therefore, the time required for registration can be greatly reduced.

When deleting image information that is no longer needed, please refer to Figure 4 [α
) All of the data for this image information or the name of the image information may be deleted from the data shown in ).

〔Effect of the invention〕

As explained above, according to the present invention, even if image information from image input devices with different characteristics is stored in the image storage device, the image quality of the reproduced images obtained by reading out this image information is all good. , it is possible to solve the problems of the above-mentioned prior art and provide an image retrieval device with excellent functions.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an image retrieval device according to the present invention, FIG. 2 is a block diagram showing a specific example of the correction device in FIG. 1, and FIGS. 3 and 4 are respectively similar to those shown in FIG. FIG. 3 is a schematic diagram showing a specific example of correction data registered in a storage device in FIG. 1... Controller 2... Keychain 3...
・Storage device 4... Image storage device 5... Correction device 6... Display device 7... Image human power device

Claims (1)

[Scope of Claims] An image storage device that stores a plurality of pieces of image information, a control device that specifies and reads desired image information from the image storage device, and displays the read desired image information. an image retrieval device comprising: a storage means for storing correction data for each image information stored in the image storage device; and a storage means for storing the desired image information read from the image storage device. and a correction means for correcting based on the corresponding correction data read out from the image retrieval device, the image retrieval method is characterized in that the image retrieval device is configured such that the image quality of the image displayed on the display device can be corrected based on the desired image information. Device.