JPH1023216A - Image processor and image transfer method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image processor and image transfer method by which a required image is recognized immediately. SOLUTION: This image processor is connected to other image processor, through a communication line and an image area IMAGA8b, a block image area IMAGB8c, and a table area TBL8d are provided in a RAM8 of the image processor. In the case of operating a transmission key SKEY2a, image data stored in the image area IMAGA8b are divided into a plurality of blocks and coordinate data 41 at an upper left of each block, coordinate data 42 at lower right and block image data are stored in the block image area IMAGB8c. According to a sequence table, received from a receiver side, block portion of block image data and the coordinate data 41, 42 are transmitted. After the transmission of one block, a reply from the receiver side image processor is confirmed, and when an instruction of transmission stop is received, the processing is terminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus and a method for transmitting or receiving an image.

[0002]

2. Description of the Related Art Conventionally, there has been known an image processing apparatus which creates an image using a word processor or a personal computer and transmits the created image. Since image transmission takes a lot of time, image data is generally transmitted as compressed instead of as it is.

[0003] If you want to know the whole image quickly,
It has also been proposed to transmit a rough mosaic-like image first and then gradually transmit precise information.

[0004]

However, in the former case, since images are transmitted sequentially from the end of the image, there is a problem that it takes time to know whether or not the image is necessary.

[0005] In the latter case, there is a problem that it cannot be clearly understood unless the image is received near the end of the image.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an image processing apparatus and an image transfer method capable of immediately knowing a required image.

Another object of the present invention is to provide an image processing apparatus and an image transfer method capable of stopping transmission of an unnecessary image.

[0008]

According to a first aspect of the present invention, there is provided an image processing apparatus for transmitting an input-edited image. Image dividing means, and a transmitting means for transmitting the image divided in the block unit to a receiving side.

According to a second aspect of the present invention, there is provided an image processing apparatus for receiving an image on which input editing has been performed, a receiving means for receiving an image divided into block units from a transmission side, and Output means for outputting in units of blocks.

According to a third aspect of the present invention, there is provided an image processing apparatus.
The transmission side instructing the transmission side of the divided image to the transmission side.

According to a fourth aspect of the present invention, in the image processing apparatus according to the first aspect, the transmitting unit transmits the divided images according to a transmission order instructed by the receiving side. I do.

According to a fifth aspect of the present invention, there is provided an image processing apparatus according to the second aspect.
The image processing apparatus according to the above, further comprising transmission stop instruction means for instructing the transmission side to stop transmission during reception of the divided image.

In the image processing apparatus according to a sixth aspect, in the image processing apparatus according to the first aspect, the transmission unit includes a transmission stop unit that stops transmission when an instruction to stop transmission is received from the receiving side. It is characterized by the following.

According to a seventh aspect of the present invention, in the image processing apparatus according to the second aspect, when the receiving unit receives all the images divided in the block unit, the receiving unit converts the divided image into the divided image. The image data is converted into an image before being stored and stored.

An image transfer method according to claim 8, wherein in the image transfer method for transferring an image from a transmission side to a reception side, the image is divided into blocks on the transmission side, and the image is divided into blocks. Is transmitted to the receiving side, the receiving side receives the image transmitted from the transmitting side, and outputs the received image in the block unit.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the image processing apparatus according to the present invention will be described. The image processing apparatus according to the present embodiment is connected to another image processing apparatus via a communication line. FIG. 1 is a block diagram illustrating a configuration of an image processing apparatus according to an embodiment. CPU1 is a central processing unit,
Each part connected to the bus line (BL) 6 is controlled. The keyboard (KB) 2 has various input keys and cursor keys. Of these, three keys that are particularly important in the present embodiment will be described.

SKEY 2a is a transmission key for instructing transmission. JKEY2b is a reception key for instructing reception.
CKEY2c is a stop key for instructing stop of transmission. L
The CD 3 is a color display, and displays image data written in the VRAM 4 which is a write-only memory for display.

The hard disk (HD) 5 is an external storage device and stores image data. The ROM 7 is a read-only memory, and is internally divided into a plurality of parts, each of which is used for a specific purpose. Among them, PRG7a is CPU
1 is a program area for controlling the first program. FONT7
b is a font area for storing character patterns.

The RAM 8 is a nonvolatile memory, the inside of which is divided into a plurality of parts, each of which is used for a specific purpose.
Among them, the WORK 8a is a calculation area used to operate the above-described program, and is a temporary save area. The IMAGA 8b is an image area for storing image data, and the IMAGB 8c is a block image area for storing image data in a format in which the image data stored in the image area IMAGA is rearranged for each block when the image data is divided into a plurality of blocks. . The TBL 8d is a table area for storing an order table indicating a block order when image data is rearranged into a plurality of blocks.

A modem (MODEM) 9 is a control device for transmitting and receiving images.

First, the operation of the image processing device on the transmitting side will be described. FIG. 2 is a flowchart illustrating a transmission operation procedure of the image processing apparatus. Keyboard (KB) 2 in advance
To create image data in the image area IMAGA 8b of the RAM 8. When creating the image data, the image data stored in the hard disk (HD) 5 may be read instead of drawing a new image. The created image data is composed of a dot pattern, is stored in the image area IMAGA8b as an aggregate of digital information, and
The data is written to the RAM 4 and displayed on the LCD 3.

When the transmission key SKEY2a is operated, first, the image data stored in the image area IMAGA8b of the RAM 8 is divided into a plurality of blocks (step S).
21). FIG. 3 is an explanatory diagram showing image data divided into a plurality of blocks. In this case, it is divided into seven blocks A to G. The upper left coordinate data 41, the lower right coordinate data 42 of each divided block, and the image data (block image data) in the block are R
It is stored in the block image area IMAGB 8c of AM8. FIG. 4 is an explanatory diagram showing the correspondence between the image area IMAGA8b and the block image area IMAGB8c.

Subsequently, the image processing apparatus on the receiving side instructs the transmission order from which block to transmit (step S22). The transmission order is shown in the order table in which the order of the blocks is described, and is stored in the table area TBL8d of the RAM 8.

Then, a transmission preparation signal is sent to the reception side to urge the image processing apparatus to prepare for reception (step S23). The block image data and the coordinate data 41 and 42 for one block are transmitted according to the order table. FIG. 5 is an explanatory diagram showing the order table stored in the table TBL8d. Since the head of the order table is an E block, first, the E block of the block image area IMAGB8c is first set.
Data corresponding to the block (coordinate data and block image data) is transmitted (step S24).

After transmitting one block, a reply from the image processing apparatus on the receiving side is confirmed (step S25). It is determined whether or not there is a transmission stop instruction from the receiving side (step S).
26). If there is an instruction to stop transmission, the transmission process ends. On the other hand, if there is no transmission stop instruction, it is determined whether all blocks have been transmitted (step S27). If not all blocks have been transmitted, the process returns to the next block transmission process (step S24), and Is transmitted, an end signal is transmitted (step S28), and the transmission processing ends.

Next, the operation of the image processing apparatus on the receiving side will be described. FIG. 6 is a flowchart illustrating a reception processing procedure of the image processing apparatus. When the reception key JKEY2b is operated, the reception order is determined. Figure 3 shows the image block
When the image is divided into seven as in A to G, the reception order of the seven blocks is determined. However, when the image is to be sent from the image at the center, a number corresponding to each block is set. FIG. 7 is an explanatory diagram showing the transmission order of a plurality of divided blocks. That is, when the user wants to send in the order of E, D, F,.
Create the order in d. As shown in FIG. 5, the reception order of each block is determined in the table area TBL8d (step S31).

The order table stored in the table area TBL8d is transmitted to the image processing apparatus on the transmitting side (step S).
32) Wait for a reply as to whether or not the transmission side is ready. Continue sending the order table until a reply is received (step S
33).

When the image processing device on the transmitting side is ready, the first data (coordinate data and block image data) from the transmitting side is received (step S34). Then, it is determined whether or not the signal is an end signal (step S3).
5) If it is not the end signal, the block image data for one block is stored in the block image area IMAGB 8c of the RAM 8.
And written in the VRAM 4 and displayed on the LCD 3. The LCD 3 displays the block image data at a position based on the coordinate data among the received data (step S36).

When one block is displayed, the keyboard K
It is determined whether the stop key CKEY2c of B2 has been operated (step S37). If the stop key CKEY2c has not been operated, a reply is transmitted to the image processing apparatus on the transmission side to transmit the data of the next block (step S3).
8) Return to the signal receiving process (step S34) again.
On the other hand, when the stop key CKEY2c is operated, a stop instruction signal is transmitted to the image processing apparatus on the transmission side (step S39).

On the other hand, when the end signal is transmitted from the image processing apparatus on the transmission side in step S35, since all the image data has been transmitted, the block image area IM
This means that all the block image data has been prepared in the AGB 8c. At this time, the LCD 3 displays the entire image data, but the block image area IMAG divided for each block is displayed.
It is necessary to convert the block image data of B8c into the original image data. That is, the block image area IMAGB8
All the block image data stored in c is converted into the form of the image data stored in the image area IMAGA8b on the transmission side, and stored again in the image area IMAGA8b on the reception side (step S40).

As described above, according to the image processing apparatus of the present embodiment, the receiving side can receive the block image data in the desired block order, and the receiving can be interrupted on the way.

In this embodiment, the transmission order is set in the order shown in FIG. 7, but it goes without saying that the transmission order can be arbitrarily changed on the receiving side. FIG. 8 is an explanatory diagram showing another transmission order. The transmission order is set when the user wants to see the image slightly to the right of the center first.

In this embodiment, the image is divided into seven blocks. However, the image may be divided into any number of blocks and shapes. FIG. 9 is an explanatory diagram showing a case where the image data is divided into 16 rectangular blocks. However, in this case, it is necessary to make the block division form common between the transmitting side and the receiving side.

Further, in the above-described embodiment, the case where both the transmitting side and the receiving side are image processing apparatuses capable of transmitting and receiving is described. However, an image processing apparatus which performs only transmission or only reception may be used.

Further, in the above embodiment, it is determined whether or not the stop key CKEY has been operated at the time of receiving one block. However, the stop key CKEY is operated even while receiving the block image data of one block. In this case, the transmission may be interrupted and transmitted to the transmission side to stop the transmission. Thereby, transmission of unnecessary image data can be stopped earlier.

Further, the present invention may be applied to a system constituted by a plurality of devices, or may be applied to an apparatus constituted by a single device. Needless to say, the present invention can be applied to a case where the present invention is achieved by supplying a program to a system or an apparatus. In this case, by reading out a storage medium storing a program represented by software for achieving the present invention into a system or an apparatus, the system or the apparatus can enjoy the effects of the present invention.

[0037]

According to the image processing apparatus according to the first aspect of the present invention, when transmitting an image that has undergone input editing, the image is divided by the image dividing means into blocks, and the image is divided into blocks by the transmitting means. Since the divided images are transmitted to the receiving side, only the necessary images can be transmitted immediately. Therefore, the receiving side can immediately know the required image.

According to the image processing apparatus of the present invention, when receiving an image on which input editing has been performed, an image divided into blocks by a receiving unit is received from a transmitting side, and the received image is received by an output unit. Since the image is output in the block unit, a necessary image can be immediately known.

According to the image processing apparatus of the third aspect, since the transmission order instructing means for instructing the transmitting side of the transmission order of the divided images is provided, it is possible to determine from which part of the image the image is to be transmitted. The receiving side can instruct the transmitting side.

According to the image processing apparatus of the fourth aspect, the transmitting unit transmits the divided images in accordance with the transmission order specified by the receiving side. You can decide from which part to send.

According to the image processing apparatus of the fifth aspect, the transmission side includes transmission stop instruction means for instructing the transmission side to stop transmission during reception of the divided image. , It is possible to immediately instruct the transmitting side to stop the transmission if it is determined that the transmission is unnecessary, and the transmitting side can stop the transmission of the unnecessary image by interrupting the transmission of the image according to the instruction.

According to the image processing apparatus of the present invention, when the transmission unit receives the transmission stop instruction from the receiving side, the transmission unit includes the transmission stop unit for stopping the transmission. Can be stopped.

According to the image processing apparatus of the present invention, when all the images divided in the block unit are received, the receiving means converts the divided image into the image before the division. Since the data is stored, the image editing after reception can be facilitated.

According to the image transfer method of the present invention, in the image transfer method for transferring an image from the transmitting side to the receiving side, the transmitting side divides the image into blocks.
Since the image divided in the block unit is transmitted to the receiving side, the receiving side receives the image transmitted from the transmitting side, and outputs the received image in the block unit. Only the necessary images can be transmitted immediately, and the receiving side can immediately know the necessary images.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an image processing apparatus according to an embodiment.

FIG. 2 is a flowchart illustrating a transmission operation procedure of the image processing apparatus.

FIG. 3 is an explanatory diagram showing image data divided into a plurality of blocks.

FIG. 4 shows an image area IMAGA8b and a block image area I
It is an explanatory view showing correspondence with MAGB8c.

FIG. 5 is an explanatory diagram showing an order table stored in a table TBL8d.

FIG. 6 is a flowchart illustrating a reception processing procedure of the image processing apparatus.

FIG. 7 is an explanatory diagram showing a transmission order of a plurality of divided blocks.

FIG. 8 is an explanatory diagram showing another transmission order.

FIG. 9 is an explanatory diagram showing a case where the image data is divided into 16 rectangular blocks.

[Explanation of symbols]

 1 CPU 2 Keyboard 2a Send key SKEY 2b Receive key JKEY 2c Cancel key CKEY 8b Image area IMAGA 8c Block image area IMAGB 8d Table area TBL

Claims (8)

[Claims] 1. An image processing apparatus for transmitting an image on which input editing has been performed, comprising: an image dividing unit configured to divide the image into blocks; and a transmitting unit configured to transmit the image divided into blocks to a receiving side. An image processing apparatus comprising: 2. An image processing apparatus for receiving an image on which input editing has been performed, a receiving means for receiving an image divided in block units from a transmission side, and an output means for outputting the received image in block units An image processing apparatus comprising: 3. The image processing apparatus according to claim 2, further comprising transmission order instructing means for instructing the transmission side of the transmission order of the divided images. 4. The image processing apparatus according to claim 1, wherein the transmitting unit transmits the divided images according to a transmission order specified by the receiving side. 5. The image processing apparatus according to claim 2, further comprising transmission stop instruction means for instructing the transmission side to stop transmission during reception of the divided image. 6. The image processing apparatus according to claim 1, wherein the transmission unit includes a transmission stop unit that stops transmission when an instruction to stop transmission is received from the receiving side. 7. The image processing apparatus according to claim 7, wherein the receiving unit converts the divided image into the image before the division and stores the image when all the images divided in the block unit are received. 3. The image processing device according to 2. 8. An image transfer method for transferring an image from a transmission side to a reception side, wherein the transmission side divides the image into block units, transmits the image divided into block units to the reception side, An image transfer method, wherein the receiving side receives an image transmitted from the transmitting side, and outputs the received image in the block unit.