JPS59224967A - Picture information processing unit - Google Patents

Abstract

PURPOSE:To conduct the test of a picture information processing unit in a simple way by providing a non-conducting mode controlling a write speed and a read speed to/from a line memory in an identical speed. CONSTITUTION:A selector 6 is operated by a mode signal from a non-converting mode module 9 so as to select alternately a content of a memory 5A and a content of a memory 5B. Then output original picture information SPiX-out having a line number the same as a line number input original picture information SPiX-in is outputted. Thus, so long as a picture information processing unit 1 is operative at all times, a facsimile signal CPiX-in to be converted and a facsimile signal CPiX-out being the result of conversion are brought into the identical signal. Then the normality of the operation of the unit 1 is tested.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to an image information processing device, particularly for converting a facsimile signal from an A4 size facsimile terminal to a facsimile signal for an A5 size facsimile terminal, and vice versa. In such an image information processing device, a non-conversion mode is provided in the line processing section, which is the heart of the above conversion.
The present invention relates to an image information processing device that allows easy functional checking of conversion processing in the image information processing device.

(B) Technical background and problems For example, in order to output a facsimile screen input from an A5 facsimile terminal to an A4 facsimile terminal, or vice versa, an image information processing device is used to intervene. There is.

As will be described later, such an image information processing apparatus decodes a converted facsimile signal to obtain original image information, converts (enlarges or reduces) the number of lines, and encodes it again to obtain a converted facsimile signal.

In the case of such an image information processing apparatus, it is essential to check whether the conversion process is being performed in a normal manner. As a check method for this purpose, for example, the following method can be considered. In other words, A5 whose correctness of operation is guaranteed.
A version facsimile terminal and an A4 version facsimile terminal were prepared, a test screen was input from the A5 version facsimile terminal, and the obtained converted facsimile signal was supplied to the image information processing device under test to correspond to the A4 version. A possible method is to convert the data into a facsimile signal, supply the result to an A4 size facsimile machine to generate an output screen, and then compare the test screen and the output screen by an operator. However, this method requires complicated operations because it is done manually, and it is not always possible to perform accurate tests due to the possibility of erroneous operations.

In order to improve this point, input original image information for testing and correct original image information of the conversion result are prepared in memory, and output original image information obtained from the conversion result obtained by the image information processing device under test and the above An automatic verification system that compares the information with the correct original image information will be considered.

However, in the case of this method, it is necessary to prepare an expected value in the program for each type of conversion, for example from A5 version to A4 version, from A4 version to A5 version, etc. The economical burden of development is large when considering things like reeds and program debugging.

In addition, to obtain input original image information for testing, it is easier to create image information from the actual terminal, but it is a heavy burden to obtain correct original image information. In other words, at the stage when the image information processing device itself is being developed, it is not possible to use an image information processing device that is guaranteed to operate correctly.
Other tools must be used, making it difficult to obtain the correct answer.

(q) Purpose and Structure of the Invention The present invention aims to solve the above-mentioned problems, and provides a non-conversion mode in which the image information processing device performs exactly the same conversion process, but does not perform the conversion process. It is an object of the present invention to provide an image information processing device that enables the above-mentioned test to be performed easily by providing the information processing device with a function.For this purpose, the image information processing device of the present invention provides a function that allows the above-mentioned test to be performed easily. a decoding unit that decodes the original image information into original image information, and a line input unit that inputs the decoded original image information.
An image information processing device comprising: a line processing section that includes a memory and converts the number of lines in connection with write and/or read processing for the line memory; and a code section that codes the output from the line processing device. The present invention is characterized in that, corresponding to the line number conversion process by the line processing section, a non-conversion mode is provided in which the write speed and read speed for the line and memory are controlled to be the same. This will be explained below with reference to the drawings.

Φ) Embodiment of the Invention FIG. 1 shows the configuration of an embodiment of the image information processing device of the present invention, and FIG. 2 shows the configuration of an image information processing device shown in FIG. This shows an image information system that has functions for outputting and testing.

In FIG. 1, 1 is an image information processing device, 2 is a decoding unit, 3I/'iMoA and 5B are line memories, and 6 is a selector that selects from 5 line memories in response to the MOD signal shown in the figure. 7 is an enlargement mode control module; 8 is a reduction mode control module; 9 is a non-conversion mode control module which is provided in the present invention; IOA, l0
BFi gate circuit, 111/i selection circuit, 12/f
i Represents a bypass route that can be taken as needed.

The converted facsimile signal CP is sent to the image information processing device 1.
(When X −4n is supplied, it operates as follows,
A conversion result facsimile signal CPiX-out is output. That is, the input original image signal 5P (X-IsK) is demodulated by the signal Cp4X-in/ri decoder 2.

The signal 8P(X-(%) is the line memory selection signal LM
Based on the SEL, the contents of the memory 5A are written to the 5 line memories and 5B alternately for each line.For example, when enlarging an A5 version to an A4 version, the content of the memory 5A is The selector 6 is controlled to select the contents twice in succession and then select the contents of the memory 5B once,
Output original image signal 5P (X - o
Output ut. In addition, when reducing the 4-person version to the A5 version, the MOD signal from the module 8 causes the selector 6 to output the contents of the 5-person memory and the contents of the memory 5B in a dot-by-dot OR logic. , the number of lines is 1/
The output original image signal 5PjX-ost, which is set to 2, is output.

The signal 8PiX is the result of converting these screen sizes.
-out Ifi The signal is processed as necessary and guided to the code unit 4, and the conversion result facsimile signal CPiX
-out outputs.

As described above, the image information processing device 1 performs conversion processing, but as described above, it is quite difficult to test whether or not the image information processing device is operating correctly. There was a method of automatically comparing the correct answer data corresponding to each mode of enlargement and reduction, such as having the operator perform a conversion operation on the actual screen...
・.

For this purpose, in the present invention, a non-conversion mode control module 9 as shown in the figure is provided, and when the non-conversion mode is instructed, the MOD signal from the module 9 causes the selector 6 to select the contents of the memory 5A and the memory 5B. The content is selected alternately. That is, input original image information 5P4X
-(%K) Output original image information 8P<X-ost having the same number of lines as the number of lines in The conversion result facsimile signal CPj .

In addition, in some cases, the bypass loop shown in FIG.
It is used when it is necessary to output as out.

Using the non-conversion mode described above, the signal CP4X -out
However, the bypass route 12 has the advantage that no processing time is required. However, when the bypass route 12 is used, it cannot be used alone for testing the internal functions of the image information processing device 1.

FIG. 2 shows an image information system that uses the image information processing apparatus shown in FIG. 1 to convert a facsimile signal, output it to a line, and perform a test.

Reference numeral 1 in the figure corresponds to FIG. 1, and indicates CCFi, central control unit, 13 picture information disk channel, 14 facsimile machine, 15 Fi line unit, 16 picture information path switching unit, and 17 line. There is.

Times l1Ii! Converting the facsimile signal to be converted from 17 or the facsimile signal to be converted from facsimile device 14 is performed as follows. That is, the facsimile signal to be converted is first transferred to the channel 13, then supplied from the channel 13 to the image information processing device 1, the conversion result facsimile signal 0P (X-ost) is generated, and the signal is transferred to the channel 13. and times m17
Or it is guided by facsimile snow making 14.

During testing, it operates as follows. That is, a test original image is input from the facsimile device 14, and the original image information is supplied to the central controller CC through the channel 13 as the above-mentioned correct original image information (also the test original image information). As a result, the central control device CC tests the image information processing device 1. That is, the signal CPiX -i
n is given, the image information processing device 1 operates in the above-mentioned non-conversion mode, and the conversion result facsimile signal CP(X
-Generate out. This signal OP<X-ost is guided to channel 13. Then, the appearance original image information obtained from the signal is sent to the central control unit CC, and is automatically compared with the correct original image information.

(E) As described in detail, according to the present invention, it is possible to easily obtain test original image information, correct answer original image information, and output original image information necessary for testing, and to test the image information processing device 1. This can be done in a simple way.

[Brief explanation of drawings]

FIG. 1 shows the configuration of an embodiment of the image information processing device of the present invention;
The figure shows how a facsimile signal is converted using the image information processing device shown in Figure 1! This figure shows an image information system that has the function of performing a test. In the figure, 1 is an image information processing device, 2 is a decoding unit, and 311t
Line processing section, 4 is code section, 5 line. 6 represents a memory, 6 represents a selector, and 7 to 9 each represent a control module.

Claims (1)

[Scope of Claims] A decoding unit that decodes encoded image information into original image information, a line into which the decoded original image information is input, and a memory, and processes for reading and/or reading the line memory. In an image information processing device, the image information processing device includes a line processing unit that converts the number of lines in relation to the line processing unit, and a code unit that codes the output from the line processing device,
Corresponding to the line number conversion process by the line processing section. An image information processing device characterized by having a non-conversion mode in which the writing speed and reading speed for the line memory are controlled equally.