JPH0327481A - Picture processing device - Google Patents

Abstract

PURPOSE:To take in only a desired connected area component into a picture memory even in the case the circumscribed rectangles overlap each other by providing a specified data extracting means to give one label number to a connected picture element and extract only the data of the designated label number. CONSTITUTION:A data suppression circuit 7 is a gate circuit to connect a picture bus 4 and a picture memory 13, and a circuit to resist the data to be taken in the picture memory 13 in coformity to a decision signal 14. Namely, the label number is attached to the binary data on an original picture line by a labeling processing means 5, and only the picture data related to the designated label number is extracted by the specified data extracting means 7, and it is stored in the picture memory 13. Accordingly, it is unnecessary to execute segmenting work by the circumscribed rectangle, and in addition, it is unnecessary to remove an excess picture out of the segmented rectangle. Thus, picture extraction can be executed at high speed and in addition, surely.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to an image processing device.

(Prior Art) Conventionally, in research in biotechnology, for example, only images within a predetermined range have been extracted from images of red blood cells, genes, chromosomes, and the like.

An example of such an image processing method is to divide a binarized image into blocks through labeling processing, and extract images of regions with notable label numbers from a pile of blocked images. .

For example, multiple connected areas I, ■, ■ as shown in FIG.
When processing an image with The desired image is extracted.

Furthermore, based on the idea of finding a desired connected region I, ■, or ■ by cutting out such circumscribed rectangles, there is a device that aims to increase the speed by allocating multiple cutting processes to multiple processors at the same time. has also been proposed (Japanese Patent Application No. 63223016).

(Problem to be Solved by the Invention) However, in such a conventional method, when the circumscribed rectangles I, ■ or ■, ■ overlap each other as shown in FIG. In some cases, images of label areas may be included, and in this case, it is necessary to remove images of other label areas.

For example, when extracting the image within the circumscribed rectangle 2 from among the images shown in FIG. Unnecessary images must be removed from the images within. Therefore, after image data is once loaded into the image memory, unnecessary image data must be removed from the image memory, which poses a problem in that image extraction processing takes a lot of time.

Furthermore, since conventional image processing devices require a lot of processing time to extract a specific image, the image data imported into the image memory is not the label image itself, but the original image from a TV camera or videotape. In such a case, it is difficult to remove data corresponding to an unnecessary label area, so there is a problem in that real-time image extraction processing is difficult.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an image processing device that can quickly extract only an image of a specific region from an image, particularly an original image.

[Structure of the Invention] (Means for Solving the Problem) An image processing device of the invention for achieving the above object inputs binarized original image data and assigns one label number to each connected pixel. labeling processing means that outputs the image data with a label number outputted from the labeling processing means, and determining whether the image data with the label number output from the labeling processing means is the image data with the designated label number; The present invention is characterized by comprising a specific data extraction means for extracting only specific data, and an image memory for storing the image data extracted by the means.

(Function) In the present invention, a labeling processing means attaches a label number to the binarized data of the original drawing line, and a specific data extraction means extracts only the image data related to the designated label number, and stores this in the image memory.

Therefore, there is no need to cut out a circumscribed rectangle as in the conventional example, and there is no need to remove unnecessary images from the cut out rectangle, so that image extraction can be performed quickly and reliably.

(Example) Examples of the present invention will be described in detail below.

FIG. 1 is a block diagram of an image processing apparatus according to an embodiment of the present invention.

In FIG. 1, 4 indicates an image bus, and this image bus 4
A labeling processing circuit 5, a specific connected region determining circuit 6 as specific data extraction means, and a data suppression circuit 7 are connected to.

The labeling processing circuit 5 is connected to a binarization circuit 8, and inputs an analog signal imaged by a television (TV) camera 9 to the binarization circuit 8 as a digital signal via an A/D converter 10. Alternatively, the digital signal of the original image is directly input from an original image storage unit 11 such as a video tape. The specific quick connection region determination circuit 6
is connected to the host computer 12 as a controller,
An image memory 13 is connected to the data suppression circuit 7.

In the above structure, the labeling processing circuit 5 inputs the binarized signal of the original image data as shown in FIG. A label number corresponding to each area 1, II, ■ is attached to the image bus 4, and this is output to the image bus 4. Therefore, the scan data of the original image is sent to the image bus 4 in such a manner that each pixel is given a label number corresponding to the area 1, If, ■.

A specific connected area determination circuit 6 connected to the image bus 4 is a circuit that monitors image data transmitted via the image bus 4. That is, the specific connected area determination circuit 6 is given the label number of the connected area to be imported into the image memory 13 from the host computer 12. Thereby, the specific connected area determination circuit 6 monitors the image data transferred through the image bus 4 and determines whether the data has the label number specified by the host computer 12 or not. The determination result is output to the data suppression circuit 7 as a determination signal 14.

This judgment signal 14 is a 1-bit judgment signal, and if the specified data is specified, 1 is output, otherwise, O is output.

The data suppression circuit 7 is a gate circuit that connects the image bus 4 and the image memory 13, and is a circuit that limits data taken into the image memory 13 according to the determination signal 14. That is, if the determination signal is 1, the data from the image bus 4 is taken into the image memory 13, and if it is 0, the constant O is taken into the image memory 13.
It operates to import into. As a result, image data of only the designated connected area is captured in the image memory 13, and only the captured image data is displayed on, for example, a display device (not shown).

FIG. 3 shows an example in which the specific connected area determination circuit 6 is constructed of a register 15 and a comparator 16.

The register 15 holds the label number given from the host computer 12. The comparator 16 compares this label number with the label number of the image data transferred from the image bus 4, and if the two match, the comparator 16
A determination signal of 1 indicating a match is output from the data suppression circuit 7 to the data suppression circuit 7. If they do not match, a determination signal of 0 indicating mismatch is output. As a result, only the data of the label number specified by the host computer 5 is stored in the image memory 1 as described above.
3.

FIG. 4 shows another specific example of the specific connected area determination circuit 6, in which the register 15 and comparator 16 described above are replaced with a 1-bit RAM 17. In this example, the data of the label number of the image bus 4 is supplied to the RAM 17 as an address, and a 1-bit determination signal 14 is output when the address matches the designated label number.

FIG. 5 is a block diagram showing a specific example of the data suppression circuit 7. As shown in FIG.

In the figure, each AND gate 18 is a gate circuit that blocks or passes input data 19 input from the image bus 4, and this gate circuit is a gate circuit that blocks or passes input data 19 input from the image bus 4.
It is controlled by the determination signal 14 of. That is, judgment signal 1
If 4 were the value 1 to allow data to pass, then each AN
Since 1 is given to one terminal of the D gate 18, each A
The ND gate 18 is in an open state, and the input data 19 is AND
Image memory 1 as output data 20 via gate 18
3 is output. On the other hand, if the judgment signal has a value O that prohibits the passage of data, 0 is given to one terminal of each AND gate 18, each AND gate 18 is closed, and the output data 20 is all 0. The passage of one piece of input data is blocked.

FIG. 6 is a block diagram showing another embodiment of the present invention.

In this example, two image buses 4A and 4B are provided,
The configuration is such that original image data flows through one image bus 4B, and label number data flows through the other image bus 4A. The data suppression circuit 7 is connected to the image bus 4B, and compares the label number specified by the specific connected area determination circuit 6 with the label number on the bus 4A to determine whether the data is specified by the host computer 5 as in the above embodiment. The original image of the connected area of the label number is cut out and taken into the image memory 13.

As the original image, it is possible to extract the image regardless of whether it is a grayscale image or a binary image.

The present invention is not limited to these embodiments, but can be implemented with appropriate modifications without departing from the gist of the invention.

[Effects of the Invention] As described above, according to the present invention, even if the circumscribed rectangles of connected regions overlap, only a certain portion of the desired connected region can be captured into the image memory. Therefore, there is no need to remove unnecessary data after data has been taken in as in the conventional method, and image data can be extracted at high speed and reliably.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the image processing device of the present invention, FIG. 2 is an explanatory diagram of an original image used in this embodiment, and FIG. 3 is a block diagram showing a specific example of a specific connected area determination circuit. , FIG. 4 is a block diagram showing another specific example of the specific connected area determination circuit, FIG. 5 is a block diagram showing a specific example of the data suppression circuit, and FIG. 6 is a block diagram showing another embodiment of the present invention. , FIG. 7 is an explanatory diagram showing an example of an image. 4.4A, 4B...Image bus 5...Labeling processing circuit 6...Specific connected area determination circuit 7...Data suppression circuit 13...Image memory

Claims (1)

[Claims] Labeling processing means inputs binarized original image data and outputs a single label number for each connected pixel; A specific data extraction means for determining whether the image data is the image data of the specified label number and extracting only the data of the designated label number, and an image memory for storing the image data extracted by the means. Characteristic image processing device.