JPH05101169A - Image data input device - Google Patents

Abstract

PURPOSE:To provide an image data input device which can efficiently store a large amt. of necessary image data in a small-capacity memory. CONSTITUTION:An image data input device is constituted with a memory 3 stored with the image data, a read and write control part 4 which controls reading and writing of the image data from and to the memory 3, an image data address generator 5 which generates addresses of the input image data, a fetch area specifying means 6 which specifies a fetch area for the input image data, decision means 7 which decides whether or not image data addresses generated by the image data address generator 5 are in the fetch area specified by the fetch area specifying means 6, a memory address generator 8 which generates memory addresses when the decision means 7 decides that the image data addresses are in the fetch area, and write area specifying means 9 which specifies the write area of the fetched image data on the memory 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image data input device for writing image data in a memory.

[0002]

2. Description of the Related Art In the processing of image data in a data processing device, it has been generally practiced to control reading or writing of image data from a memory based on an address generated by an address generator.

Further, mask control is performed so that reading or writing of image data is executed or prohibited only in a specific mask area designated in the image data. That is, in this mask control, as shown in FIG.
Of the O and Δ images 10 and 11 on the input image A of the V camera, when only the O image 10 is written to the memory, the input image A and the designated area (mask area) M stored in the mask memory B are written. The data is masked by the calculation unit 20, and the specified range (coordinates STX, ED) on the memory image C is shown as shown in the figure.
Only the image 10 of the required O is written in the rectangular area S surrounded by X, STY, and EDY (Japanese Patent Laid-Open No. 14767/1989).
No. 8).

[0004]

However, in the conventional mask control described above, since the input image and the address of the memory are in one-to-one correspondence, when writing a plurality of images, the number of the images is changed. There is a problem that a memory having a proportional capacity is required.

The present invention has been made in view of the above problems, and an object thereof is to provide an image data input device capable of efficiently storing a large number of necessary image data in a small capacity memory. It is in.

[0006]

In order to achieve the above object, the present invention provides a memory for storing image data and a read / write control for controlling the read or write of the image data in the memory.
A writing control unit, an image data address generator for generating an address of input image data, a capture area designating unit for designating a capture area of input image data, and an image data address generated by the image data address generator Judging means for judging whether the image data address is within the acquisition area specified by the area specifying means, and a memory address generator for generating a memory address when the image data address is judged by the judgment means. When,
It is characterized in that the image data input device is configured to include a writing area designating unit for designating a writing area of the captured image data to the memory.

[0007]

According to the present invention, the determining means determines whether or not the address of the input image data generated by the image data address generator is within the capture area designated by the capture area designating means. The memory address generator is caused to operate when is entered in the capture area, and the memory address is generated in the memory address generator. Then, this memory address designates the write start address by the write region designating means, and the read / write controller writes the image data in the capture region on the memory starting from this start address.

Therefore, according to the present invention, a necessary portion of the image data is sequentially written to an arbitrary address on the memory, and even if the memory has a small capacity, a large number of images required for the memory are required. Data can be stored.

[0009]

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

FIG. 1 is a block diagram showing the configuration of an image data input device according to the present invention. In FIG. 1, 1 is a TV camera as an image pickup means, and 2 is a TV camera control unit for controlling the TV camera 1. is there.

Thus, the image data input device according to the present invention includes a memory 3 for storing image data, and a read / write control for controlling the reading or writing of the image data in the memory 3.
A writing control unit 4, an image data address generator 5 for generating an address of input image data, a capture area designating unit 6 for designating a capture area of input image data, and an image generated by the image data address generator 5. Determining means 7 for determining whether or not the data address is within the capture area designated by the capture area designating means 6, and a memory address when the determining means 7 determines that the image data address is within the capture area. And a memory address generator 8 for generating the
And a writing area designating means 9 for designating a writing area for writing.

Next, the operation of the image data input device will be described with reference to FIG.
Will be described with reference to. FIG. 2 is a diagram showing how the TV camera input image is subjected to data processing and written at a predetermined position on the memory image.

When the TV camera 1 captures an image of an object and captures image data under the control of the TV camera controller 2,
The image data address generator 5 receives the control signal of the TV camera controller 2 and generates an address of the input image data.

Here, when the TV camera input image A obtained by the image pickup by the TV camera 1 includes the images 10 and 11 of O and Δ as shown in FIG. 2, only the image 10 of O is predetermined in the memory 3. Consider the case of writing to an address.

By the way, the acquisition area designating means 6 is
Data CSTX and CED for designating a capture area (area partitioned by lengths XL and YL) M of the image data shown in FIG.
X, CSTY, CEDY are stored, and the judging means 7 determines whether or not the address of the input image data generated by the image data address generator 5 is within the capture area M given by the capture area designating means 6. To judge. Then, when the address of the input data enters the fetch area M, the judging means 7 operates the memory address generator 8 to generate a memory address.

On the other hand, the write area designating means 9 stores write start addresses STX and STY for designating a point at which writing of image data should be started on the memory 3, and is generated by the memory address generator 8. As the memory address, the write start addresses STX and STY stored in the write area designating means 9 are designated, and the read / write controller 4 is operated. Then, as shown in FIG. 2, the read / write control unit 4 writes the data of the image 10 in the capture area M on the memory image C starting from the write start addresses STX and STY.

As described above, in this embodiment, as shown in FIG.
The data of the image 10 of the circle in the capture area M on the TV camera input image A shown in FIG. Area) S, so
A large number of necessary image data can be regularly packed and stored in the memory 3 from the end, and even if the capacity of the memory 3 is small, a large number of image data can be stored therein.

Therefore, for example, when the present invention is applied to a chip mounter for positioning a chip which is an electronic component by image processing, a diagram obtained by a camera capable of wide-field input such as a line sensor when inputting image data. Three
, A plurality of chip images a on the TV camera input image A,
b and c can be sequentially written on the memory image C sequentially and regularly.

[0019]

As is apparent from the above description, according to the present invention, a memory for storing image data, a read / write control unit for controlling reading or writing of image data to the memory, and an input image data An image data address generator for generating an address, a capture area designating means for designating a capture area of input image data, and a capture area for which the image data address generated by the image data address generator is designated by the capture area designating means. Of the captured image data, a determination means for determining whether the image data address is within the capture area, a memory address generator for generating a memory address when the determination means determines that the image data address is within the capture area, Since the image data input device is configured to include the writing area designating means for designating the writing area to the memory, Will be a necessary part of the data is sequentially written to any address in memory, even a small amount of memory, there is an advantage that it is possible to store a large number of image data required to.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an image data input device according to the present invention.

FIG. 2 is a diagram showing how a TV camera input image is subjected to data processing and written at a predetermined position on a memory image.

FIG. 3 is a block diagram showing an application example of the present invention.

FIG. 4 is a diagram for explaining conventional data input (mask control).

[Explanation of symbols]

 3 Memory 4 Read / Write Control Unit 5 Image Data Address Generator 6 Capture Area Designating Means 7 Judging Means 8 Writing Area Designating Means 9 Memory Address Generator

Claims (1)

[Claims] 1. A memory for storing image data, a read / write control unit for controlling reading or writing of image data to the memory, an image data address generator for generating an address of input image data, and input image data. Capturing area designating means for designating a capturing area, and determining means for determining whether or not the image data address generated by the image data address generator is within the capturing area designated by the capturing area designating means, A memory address generator for generating a memory address when the determining means determines that the image data address is within the capture area; and a write area designating means for designating a write area of the captured image data to the memory. An image data input device comprising: