JPS6041868A - monitor device - Google Patents

Abstract

PURPOSE:To obtain a monitoring device displaying a density level with high accuracy, ease of operation and simplified constitution by assigning an address to each picture element of a solid-state image pickup element and also displaying digitally the picture element density level of a designated address. CONSTITUTION:The mode is executed designating the picture element data of the solid-state image pickup element CCP displaying the picture element data of the address. A CPU8 displays the initial state of display devices 18, 19 at first, the operator inputs the address of a read picture element data of the CCD from a ten-key on a keyboard 16 and inputs an ''SET'' key after the end of input. Then the read address of the inputted picture element data is inputted and the average value processing is executed. When the average value processing is finished, the read picture element data is converted into a 4-digit BCD code, which is converted into a display pattern corresponding to the BCD code and displayed on the display devices 18, 19.

Description

TECHNICAL FIELD The present invention relates to a monitor device, and particularly to a monitor device that digitally displays a signal after A/D conversion of an output signal from a pixel of a solid-state image sensor.

BACKGROUND OF THE INVENTION Conventionally, in order to examine desired pixel data of a solid-state image sensing device, it has been necessary to use a ΔIII device such as an oscilloscope or a logic analyzer. Moreover, since the position of pixel data must be compared with the transfer lock of one pixel data, it is very difficult to read rapidly changing pixel data at a specified position with an oscilloscope, and the density level of the read pixel must be compared. is analog data and has poor accuracy, for example, 64 after 6-bit Δ/D conversion.
It was not possible to obtain as much precision as gradation.

Furthermore, although logic analyzers can read pixel data digitally, they are always expensive and difficult to decipher where the desired pixel data is displayed.
The operation was also complicated.

Purpose The present invention has been made in view of the above-mentioned drawbacks, and has an eleventh object to realize a monitor device that can accurately digitally display the density level of a pixel designated by a solid-state image sensor with a simple configuration and with easy operation. shall be.

Another object of the present invention is to read the pixel data at least twice for the pixel at the position specified by the solid-state image sensor/- and display the maximum difference between the pixel data and the pixel data read by the solid-state image sensor. An object of the present invention is to provide a monitor device that digitally displays variations in the amount of data.

Embodiments Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings. .

FIG. 1 is an external view of a video monitor device according to an embodiment of the present invention.

The video monitor device d'1 of this embodiment has a connector 23°26.
is connected to an image information reading device and an image information processing device. Part A in the figure is a power switch and ten-key switch part, and part B is a mode selection key switch part. These mode selection keys, except for the "SET" key, are illuminated key switches, and the LE button is located at the top right of the key top.
D is provided, and lights up when the mote is selected, so that the mote S currently being executed can be visually confirmed.

The second display section 18 is composed of a 7-segment LED that displays the address of the pixel data of the solid-state image sensor fC to FCCD of the image information reading section, which will be described later, and 19 is a 7-segment LED that displays the pixel data of the COD. This is an LED.

FIG. 2 shows a block diagram of the video monitor device of this embodiment.

In the figure, 2 is an input buffer 7 that receives pixel data output from the image information reading COD converted into a digital signal of the image information reading device 25 via the connector 23, and An output buffer for sending pixel data to the processing device 28 for simultaneous processing; 3 a holding register consisting of a shift I register for temporarily holding pixel data from the input buffer 2; 4 a holding register; A reading register for reading pixel data; 8 is a microcomputer (hereinafter abbreviated as CPU) that controls the entire monitor device such as display processing of COD pixel data; 5 holds an address for reading CCD pixel data from CPU 8; do7
address register; 6 is a 10-base subtraction counter that counts a 4-digit pixel data read address; 7 is a NAND gate; 9. IO is a decoder, 18° 19 is a 7-segment LED display with the same number as shown in Figure 1, 20
1 is the LED for illuminating the mode selection key shown in Fig. 1, 11, 12, 13 is the above-mentioned display or LED dryer, 16 is the keyboard of this device, and 14 is the output of the CPU 8 on the keyboard. A driver 15 for transmitting the information is a key manual power register that transmits the state of the keyboard's key manual power to the CPU 8. 17 is an address switch for manually inputting 1211, ie, the maximum address, of 1547 pixel data in the main scanning direction of the image reading device connected to the connector 23 to the CPU 8. Further, 25 is an image information reading device that reads image information using a CCD and converts the read analog signal into a digital signal. 23 is inserted or directly connected to the IC to extract pixel data, a clock CLK30 to be described later, and a data load timing signal LDE 29. Reference numeral 28 denotes an image processing device that takes in pixel data and processes the image information, and outputs pixel data from this device to the IC socket 27 of the IC for manual operation of the image processing device 28.

Although the image information reading device 71 and the image processing device are shown as separate devices here, if the interior y1 is integrated, pixel data is read into this device by converting the pixel data read by the CCD into an analog By connecting to a back 7m IC after digital conversion using an IC clip or the like and extracting various signals, pixel data can be monitored without making any changes to the image information reading section or processing section.

FIG. 3 is a diagram schematically showing the COD, in which each pixel element A, B, C, D, . ..., all pixels r- are given a number, and from now on, this number corresponding to each pixel r will be referred to as an address.

The operation of the apparatus of this embodiment will be explained below with reference to the operation control flowchart of the CPU 8 shown in FIG.

Incidentally, the order shown in this flowchart is stored in advance in the memory ROM built into the CPU 8.

In the video monitor device of this embodiment, the execution modes shown above are selected and executed using the mode selection switch on the keyboard. There are seven types of execution modes as follows.

, l, a mode in which the address of CCD pixel data is specified and the pixel data at that address is displayed (see Figure 4 (C
)) 2. A mode in which pixel data of the COD pixel data from 17 address 0 to the maximum address specified by the address switch 17 is sequentially displayed (Fig. 4 (D)) 3. Address of the pixel data of the solid-state image sensor A mode that displays maximum and minimum value data among pixel data from 0 to the maximum address (Fig. 4 (E)) 4. Displaying pixel data from address 0 to maximum address of the solid-state image sensor Mode for displaying a number greater than or equal to a specified value in pixel data (Figure 4 (F)) 5. Indicating the address of pixel data of the solid-state image sensor''
1, reads the pixel data, turns at least once to read the address data, and displays the maximum value of the difference between those data and the address (Fig. 4 (G)
)) 6. Specify the address of the pixel data of the solid-state image sensor,
Mode for displaying the difference between adjacent pixel data (Figure 4)
H)) 7. Using the low-speed monitor mode, read the pixel data for 1 line in the horizontal scanning direction of the image, read and display the desired number of pixels for each 1 scan, and repeat this to display all the pixels for one line. Display mode (Fig. 4 (I)) In addition to the above seven modes, the number of times data is read from the numeric keypad after the mode selection key is pressed When you input , and then select mode 1 to 4.6, the CPU 8 reads pixel data for one address the specified number of times, and
Processing is performed in which the average value of the input pixel data is used as pixel data at that address (as shown in FIG. 4 (K)).

The operation when executing the second person mode will be explained with reference to FIG.

As shown in FIG. 4(A), when the power of the embodiment device is turned on, initial processing is executed in step 42 and various flags and registers are initialized, followed by mode key manual processing in step 44. The system waits for the key from the keyboard 16 to be pressed manually.

The mode key manual processing in step 44 is shown in FIG. 4(B). First, in step 46, the mode selection key manual data is read from the key manual power register 15, and as shown in step 48, it is checked whether or not a new key manual operation has been performed.If there is no new key manual operation, do nothing and change to mode f. Key Ends manual processing.

If the mode key was manually input, the process proceeds to step 50 and subsequent steps, and in steps 50 to 64 it is checked which mode key was input. Then, execution mode processing is performed according to each mode key manually.

If it is determined in step 64 that the "'average" key is manually operated, the process proceeds from step 64 to step 66, where it is checked whether the 11-yen flag is set or not. This is to check whether average value mode processing was performed in the previously executed execution processing mode.If average value mode processing was performed previously and the average flag was set, the average value is 4f.
It is assumed that i-mode has been canceled, the average flag is reset, and mode key manual processing is terminated.

If the average flag is not set in step 66, this means that average value processing will be performed in the execution mode processing to be selected thereafter, and the number of times the pixel data is read will be input using the numeric keypad, and the "S E T" key will be input. is monitored in steps 68 and 76.

If the average value processing is not executed, +lr degree ""tt uniformity.

Pressing the key is considered to be a cancellation, and the process proceeds to step 76 (YES) to cancel the average value processing.

When performing average value processing, the operator manually enters the number of times pixel data is read using the numeric keypad, then press "SE'r".
+- is done manually. When "SET" +- is input, the process proceeds to step 70, and the CPU 8 executes i17. for calculating the input average value. The average number of readings is manually calculated, an average flag is set in step 72, and 1+1 average fri processing is performed in the subsequent execution mode process 4i.

Mode key "Mode t" of mode selection key by manual processing
When the key is pressed manually, the process proceeds from step 50 to step 51, mode 1 processing. The details of this mode 1 to 1 processing are shown in Fig. 4(C).

When the ``°mode 1°'' key of the mode selection keys is input, the process proceeds to execution mode 1 processing (step 51), and then step 90 is executed. In step 90, the CPU 8 outputs the output port P6. From P7, decoders 9, 10 . The initial state shown in FIG. 5 appears on the display 18.19 via try/to 11.12! C1 display.

In this state, the operator inputs the address of the read pixel data of the CCD using the numeric keys of the keyboard 16, and after entering the input path r manually presses the "'S ET" key. CPU
8 monitors whether or not the "SET" key is input in step 92, and when the "SET" key is input manually, inputs the input pixel data read address in step 94, and performs average value processing in step 80. Execute.

The details of this average value processing are shown in FIG. 4 (10).

In the average value processing, first, in step 190, it is checked whether the average flag is set and C or not. This is to check whether the 11 yen (fi mode processing) is specified in order to execute the average value mode processing in steps 64 to 76 of the mode key manual processing, and the average value mode processing is specified and the average flag is is set, the processing from step 191 onward is performed, and when the average value mode processing is not performed, only the reading processing of step 82 is performed.Details of the reading processing of step 82 are explained in the fourth section.
Shown in Figure (J).

In the reading process (step 82), first step 180
In this step, the CPU 8 first outputs the returned pixel data read address from the output capacitor hP7 to the address register 5 and decoder 9 as a 4-digit BCD code. Decoder 9
The output address is decoded by the decoder 9 and automatically displayed on the display 18 via the driver 11.

After outputting four digits of address data to the address register, the CPU 8 outputs an address latch enable signal (LE double signal) from the output port P8 in step 181.
Set the output address to the 7 trace register. The address data set in this address register is sent to the C counter 6 at the time when the LDE signal 29 synchronized with the CCD address "0" sent from the image information reading device 25 is input to the load input terminal LD of the counter 6. Preset. Further, in step 182, the CPU 8 outputs an output permission signal (high level) from the output port P9 to the NAND gate 7, thereby causing the reflock signal C
LK30 is input to the clock input terminal CK of the counter 6. This CLK30 is a pixel data transfer lock.
This is a clock that is output for one pixel data, and in synchronization with this CLK30, pixel data is sent from the image information generating section 25 to the socket 24. The input signal is input to the input cover sofa 28 via the connector 23. This transferred pixel data is sequentially stored in the holding register 3 in synchronization with CLK30. When the pixel data is stored in the holding register 3 and the NAND gate 7 is satisfied, the CLK signal is also input to the counter 6, and the counter 6 is counted up in order from the value of the address register 5 preset by the LDE signal 29 mentioned above. Ru. Then, the CLK signal 30 is counted down in order, and the number of CLK signals 30 specified by the address register 5 is counted down.
is manually input to the counter 6, and when the pixel data at the designated address position is input to the holding register 3, the counter 6 outputs a borrow signal BLW31. This BLW
The signal 31 is an interrupt input (IN'r) of the CPU 8 and a set signal to the read register 4.
The pixel data at the address position of the CCD designated by P7 is set in the read register 4, and an interrupt request is issued to the CPU 8.

After the CPU 8 sets the output port P9 to high level in step 182, the process proceeds to step 183, and the interrupt terminal INT
When the pixel data at the desired address is set in the read register 4, the interrupt request signal is received, so the process proceeds to step 184, and the pixel data in the read register 4 is input to the capo-1-P. The pixel data is read from L and stored manually in step 185. Then, the reading process ends.

If the average flag is set in step 190 of the average value processing (step 80), the process advances to step 191, and step 70 of the mode key manual processing (step 44) is performed.
After reading out the average number of times set in , perform the above-mentioned reading process (step 82), read out the pixel data, proceed to step 193, and check whether the reading process has been executed for the number of f chest times that was calculated by 1fNi in step 191. If the data has not been read for the average number of times, the reading process (step 82) is performed for the 11th average number of times. and step 1
At step 94, the pixel data obtained by averaging the pixel data read for the average number of units is used as effective pixel data, and the averaging process (step 80) is terminated.

Here, the average number of reads and the read pixel data are held in a RAM (random access memory) built into the CPU 8 (not shown).

In the J2 execution mode I process (step 51), when the average value process in step 80 is completed, the process proceeds to step 96, where the read pixel data is converted into a 4-digit BCD code. Then, the 4-digit B converted in step 97
CL) Code IS is output to the decoder 10 from the output port P6 of the CPU 8, and the decoder IO converts it into a display pattern of the 7-segment LED display corresponding to the BCD code,
Dry/<12 is displayed on the display 19. After that, wait for 1 second in step 98, and select another execution mode.
It is checked in step 44 whether the pixel data has been read out, the hold process is executed in step 84, and then the process returns to the I7-average process in step 80 to update the read pixel data. The pixel data is read out repeatedly until the execution mode is selected, and the display data is updated.

The hold processing in step 84 will now be explained. Details of this hold processing are shown in FIG. 4(L). In the hold process (step 84), it is first checked in step 196 whether or not there is an input from the keyboard 16. If there is no input from the °'Hold °' key, the process returns and ends. If there is a human power for the "Hold °" key, the CPU 8 outputs power from P5 to drive the driver 13 to turn on the illumination LED for "Hold processing", and in step 197, the "Hold ° ° key is input again". This means that after pressing the “Hold” key, the pixel data will not be read or the display data will be updated.
This is to put the device in a bold state, and by pressing the hold key again, the illumination LED for the hold process is turned off from output P5, the hold process is ended, and the process returns.

The CPU 8 controls the illuminated LEDs of the illuminated keys on the keyboard 16 from the output port P5 in the same manner as described above for the corresponding LEDs each time the mode selection key is pressed.

Furthermore, the display data on the displays 18 and 19 maintains the current display state unless updated.

When the "°mode 2'" key is pressed to execute execution mode 2, the process proceeds from step 52 of the mode key manual processing (step 44) to step 53, and executes the mode 2 (step 53) processing shown in FIG. 4(D). do.

First, in step 100, the address to be read 1 is set to 0', and then the above-mentioned average value processing in step 80 is executed, pixel data at address O is read out, and step 102
The pixel data read in is changed into a 4-digit BCD code, outputted from the output port P6 of the CII U 8, and displayed on the display 19. After waiting for 0.5 seconds in step 104, the mode key manual processing in step 44 and the hold processing in step 84 are executed. Next step 10
At B, check whether the pixel data address currently being displayed is the maximum address specified by the address switch 17,
If it is not the maximum address, the pixel data read address is set to 1-1 and the processes from step 8o onwards are repeated, and pixel data is displayed sequentially for each attack. When the maximum address and the address of the pixel data being displayed are equal, the process returns to step 100 and pixel data is displayed sequentially from address 0 again.

The maximum address specified by this address switch 17 is mainly for the solid-state image sensor (CC) in the image information reading device 25.
It is determined by the number of pixels in D).

When the mode 3 key is pressed to execute execution mode 3, the process proceeds from step 54 of mode key manual processing (step 44) to step 55, and mode 3 processing (step 55 and subsequent steps) shown in FIG. 4(E) is executed. .

First, in step 110, 0'' is set as the pixel data read address, and the average value processing in step 80 is executed, and the pixel data at address O is first read. Next, in step 112, it is checked whether the read pixel data is the minimum value, and in step 113, it is checked whether the pixel data is the maximum value.
If it is l or the minimum value, the maximum value or minimum value and its address are recorded t1 in step 114 or step l i 5. In the case of address O, since there is no previous read data, the value is set to the minimum value. Maximum weight 1/], after storing the minimum value and its address, and maximum (++'i or IJ
If it is not the minimum (+rt), proceed to step 116, check whether pixel data has been read up to the previous address set by the address switch 17, and if it has not been read, proceed to step 118 to read the pixel data up to the IS address set by the address switch 17. Step 80 and subsequent steps are executed in order to add 1 to the pixel data at the new address and perform the process again on the pixel data at the new address.After reading all the pixel data, in step 117, the minimum value ((14 is displayed on the display 19,
The addresses are displayed on the display 18, respectively. After that, wait for 1 second in step 11.9, execute the remote key manual processing in step 44, and the hold processing in step 84, then change the value to the minimum value in step 121, and display the maximum value on the display 19.
The address is displayed on the display 18. Then, after waiting for 1 second in Step 22, executing the mode key manual operation in Step 44 and the bold processing in Step 84, the pixel take is read again from address 0, and the maximum 1iri is updated to the minimum 1 (14).

Select Execution Mode 4 (4J) (To select Execution Mode 4, press the "More 4" key on the keyboard 16. "°More 14°."

When a key is pressed, remote key manual processing (step 44)
), proceed from step 56 to step 57# in Figure 4 (F
) is executed (step 57).

In execution mode 4 processing, first, in step 130, the display 18
and υ19 are set to the initial display state as shown in FIG.
Step 131) - Wait until the reference pixel data is entered manually using the numeric keypad 16 and the "SET" key is pressed. When the "SET" key is input, step 13
The reference pixel data input in step 2 is read, and the read reference data is output from the CPU 8.・Output from P6, set decoder 10 and driver 12 to A, display 19
to be displayed. Then set the pixel readout address to °゛0“
The designated counter is cleared, and then the average value processing in step 80 is executed. Then, the read take read out in step 134 is set based on the set data.
The specified counter is incremented by 1 only if it is greater than or equal to Q'take, and if the address is less than or equal to the maximum address specified, that is, reading of all pixels has been completed. If not, the address is incremented by 1 in step 138, and .l'1'-J processing JIII in step 80 is executed to process the next IS-less pixel data. If reading of all pixel data has been completed in step 136, that is, if the maximum address has been read, the process proceeds to step 137, where the value of the specified counter is read, that is, the pixel take from The number of CP
Decoder 9 and I.Lyme 11 from the output door of U8
The screen is displayed on the display 18 via the step 13.
After the display is continued for 2 seconds at step 9, the mode key is pressed manually at step 44, and the halt processing at step 84 is executed, and the process returns to step 132, where the pixel data is read again and the take is updated.

To execute execution mode 5, press the "mode 5" key on the keyboard 16 manually. When the "mode 5" key is input, the mode key manual processing (step 44) proceeds from step 58 to step 59, and the mode 6 processing shown in FIG. 4(G) is executed.

First, in step 140, the displays 18 and 19 are set to the initial state as shown in FIG.
Wait for the key to be pressed manually. The operator first inputs the address of the pixel data to be read using the numeric keys on the keyboard 16, and then presses the "S ET" key.S E
When the T” key is pressed manually, steps 141 to 142
The program proceeds to , reads the manually entered address, and outputs the read address from the output port P7 and displays it on the display 18.

Then, proceed to step 143 and press the next 'SET' key.The operator inputs the address manually and then inputs the number of readings using the numeric keypad and presses the 'SET' key. , the process proceeds from step 143 to step 144, where the input designated number of readings is read.Then, the data reading process of step 82 is performed the designated number of times (step 82 and step 146 are looped).When the data has been read for the designated number of times, step 146 is performed. Proceed to step 1.47 and read the read pixel data l?il.
The maximum value of the difference between the pixel data determined in step 148 is outputted to the output capacitor 1-P 6 and displayed on the display 19 via the decoder 10 and driver 12. After the display continues for 2 seconds, the manual key processing in step 44 and the hold processing in step 84 are executed.
') +=Return to step 14 and update the data.

To execute execution mode 6, press the ``mode 6'' key on the keyboard 16''.

When the "Mode 6" key is pressed and input, the process proceeds from step 60 to step 61 in manual key processing (step 44) to execute the mode 6 processing shown in FIG. 4(H).

In mode 6 processing (step 61), first step 150
The display is set to the initial state Jfi'1 as shown in FIG. After entering the specified address and response using the 16 numeric keys, press “”
SET” key manually.

When the "SET" key is input, the process proceeds from step 151 to restep 152, where the designated address entered by one person is read, and the designated address is output from the output port P7 and displayed on the display 18.

Then, the average value processing in step 80 is executed and the pixel data at the specified address is read in. Next, in step 154, the specified address is incremented by 1, and the average value processing in step 80 is executed, and the pixel data at the specified address 71 is read out. After that, the difference between the two pixel data read in step 156 is determined, and the difference determined in step 157 is outputted from the output port P6 of the CPU 8 and displayed on the display 19.

Thereafter, in step 149, the display on the display 19 is continued for 2 seconds, and then the mode key manual process in step 44 and the hold process in step 84 are executed. and step 1
Returning to step 44, the pixel data difference is updated.

To execute execution mode 7, press ° on the keyboard 16.
゛Press the low-speed park key manually. “Low speed °.

When a key is input, mode key manual processing (step 44)
) During execution Step 62 leads to Step 63, where the low speed mode processing shown in FIG. 4(I) is executed.

In the low speed mode processing (step 63), first step 16 is performed.
0, the operator inputs an arbitrary number of pixels using the numeric keys on the keyboard 16'', and waits for the operator to input the ``SET'' key.

When the operator manually inputs the number of pixels and inputs the "'SET" key, the process advances from step 160 to step 161, where the input designated number of pixels is read, and then at step 162, the maximum address specified by the address switch 17 is manually input. Divide by the specified number of pixels. If the quotient is an integer (), round up the decimal point. This total r1 result is set to N6.Then, the process proceeds to step 163, and the start address is set to "0°°.In step 164, the start address is set to the pixel data read address, and the average value processing in step 80 is executed. The pixel data that is 1 to the right of the address i+'tr is extracted by 1, the pixel take read out in step 166 is displayed on the display 19, and then in step 167 it is 0.
After waiting for 5 seconds, the mode key manual processing in step 44 and the hold processing in step 84 are executed. l, :, and in step 169, add 4 (ti N) obtained in step 162 to the read address. Then, in step 170, add N
Check to see if the address added is less than or equal to the maximum address specified by address switch J7. If the address is less than or equal to the maximum address in step 170, the process advances to step 171 and the start address is incremented by 1. In step 172, it is checked whether the added start address is greater than or equal to the maximum address. If the start address is not greater than or equal to the maximum address, the process returns to step 163 and sets the start address to par 0' again, and performs the following process.If the start address is not greater than or equal to the maximum address, the process proceeds to step 164.
1.Set the address as the pixel data read address,
Execute the following processing.

As explained above, the A of the pixel of the solid-state image sensor 1' (CCD)
/D conversion output signal is microcomputer'--1 (C
Since processing is performed by the PU 8), the dark Hid level of a desired pixel can be displayed with high accuracy and high speed.

By selecting and executing the execution mode IS'1, the pixel data at the address specified by the ccD is immediately displayed on the display unit. Therefore, it is easy to read pixel data that changes at high speed at the required address, specify it sequentially, and then
Can be determined. By using this, it is possible to know the shading characteristics of the light source during image reading preparation, and based on this shading characteristic, light source correction 11. ．． A small screen for correcting the pixel data and pixel data will appear.

By selecting and executing execution mode 2, pixels are sequentially displayed in order of IS response. This mote allows the operator to measure pixel data without specifying an address.In addition, the pixel data of a CCD, such as a video signal that changes at high speed, is displayed at regular intervals, making measurement easy. Since the pixel data to be displayed is displayed in the order of address IS, it is possible to grasp the pixel take over the entire address range.
I'll come.

By selecting and executing execution mode 3, the maximum (1ri) and minimum (
+ri and its address are displayed. This eliminates the need for the operator to sample all pixel data. Furthermore, by setting the maximum (iI'i) and the minimum if to 4 (11), it is possible to know the dynamic range of the CCD, which is useful for image processing.

By selecting and executing execution mode 4, the specified i+r
Pixel data from i to 2 is displayed. Therefore, when the image reading device is connected to an image processing device such as a printer, the correlation between the original dark I piece, the pixel data value, and the print density can be determined very easily. By using this as data, highly accurate correction can be easily performed.

The specified AI by selecting and executing execution mode 5.
・It is possible to display the maximum difference (++'i) between the pixel data by including the number of times the finger > i4 times.This take allows you to read the pixel data of the CCD and perform A/D conversion. Variations can be determined by A111, and the resolution of the image can be determined very easily.

By selecting and executing execution mode 6, the difference between the address designated by the CCD and the adjacent hit is determined: 1llI. This is measured in a certain period out of the image reading life, and the accuracy of reading the density of the original and the CO
D surface It can be used for surface illumination point alignment, etc.

By selecting execution mode 7 (low speed mode I) and executing it, pixel signals that are read out at high speed are sampled every several seven to several hundred (N determined in step 162) and displayed at high speed. The change in the pixel data signal read out by 1
/N can be displayed. This allows the flow of pixel data signals to be visually monitored.

In addition, in average value processing, the pixel data is averaged by reading the pixel data for a specified number of times for a certain address and averaging the value by 1i as the pixel take at that address, which solves the problem of temporal variations in pixel take. It can be eliminated. In this way, by eliminating the problem of temporal variations in reading, it is possible to determine the A111 for determining temporal changes in the light source luminous intensity of the image reading device, the light receiving intensity of the CCD, etc.

Also, by pressing the ``Bold'' key during execution of each mote process and setting the hold mode, the contents displayed at that time are maintained in the state 1t;. By using this mode 1ζ, it is possible to temporarily stop display contents that change at regular intervals and easily record them.

In addition, in this embodiment, the pixel data is captured by the latching of the pixel data on the image reading device board. It never slows down the flow.

In addition, the captured pixel data is returned to the 1-strip board 111 is also an RJF function, and it goes without saying that it is also possible to use a configuration in which there is only one input/output coil connector and it is connected to the IC chip on the image reading device board with a clip or the like. be.

Also, it is of course possible to connect each input/output signal to a separate clip that can be easily connected to the IC's leg ＼'JIC clip A<, similar to a logic analyzer, etc., instead of connecting it to a logic analyzer. . An example of using individual grips to send and receive input/output signals is shown in No. 614.

In the figure, 201a to 201e are individual clips.

As explained above, according to the present invention, it is possible to digitally display the detected density level of a desired pixel of a solid-state image sensor by an in-process operation. Therefore, it is possible to easily know the 4-v shading property of a light source in an image reading device or the like. Based on this shading characteristic, light source correction and pixel data supplementation iE can be easily performed.

Furthermore, according to the present invention, the pixel data of the pixel at the designated position of the solid-state image sensor f- is read a fixed number of times, and the monitor device capable of digitally displaying the difference between the read pixel data of 71 & This makes it possible to measure variations in pixel data reading and A/D conversion of the solid-state image sensor -f, making it possible to know the image density resolution extremely easily.

Further, according to the present invention, pixel data is captured from the image reading device board 1. It is pin-compatible with ICs such as pixel data latches, so it does not stop the flow of pixel data on the image reading device board.

It is also possible to return the captured pixel data to the board 1-, and the number of input/output connectors is reduced to one, which can be connected to the IC depth on the image reading device board with a clip or the like.

In addition, by using individual clips for individual output signals that can be easily connected to IC legs or IC clips, similar to logic analyzers, etc., instead of using connectors, a monitoring device with no restrictions on input/output signal exchange can be created.

[Brief explanation of the drawing]

FIG. 1 is an external view of a monitor device according to an embodiment of the present invention, FIG. 2 is a block diagram of the device of this embodiment, FIG. 3 is a diagram schematically representing a solid-state image sensor (CCD), and FIG. Figures (A) to (L) are the control flowchart 1 of the device of this embodiment, Figure 5 is a diagram showing the initial display state of the display section of the device of this embodiment, and Figure 6 is the number of people in the device of this embodiment. It is a figure which shows another example of a "crab" connector. In the figure, 3... Holding register, 4... Read register, 5... Address register, 6... Counter, 8... Microcomputer (CPU), 16
...Keyboard, 17...Address switch, 18
．． 19...Display unit, 2o...Keyboard LED group,
23.26...connector, 25...image reading device. (...-A' Figure 2, 14 (A):'', 5[゛Figure 4 (3) 4th day (C) Ishi 4121 (D) Figure 6

Claims (4)

[Claims] (1) A monitor device that digitally displays density level data of digitized pixels from the solid-state image sensor after analog-to-digital conversion of an image information reading device that reads images using a solid-state image sensor, It is characterized by comprising an address designation step for assigning an address to each pixel of the image sensor and designating a specific address, and a display means for digitally displaying the agricultural level of one pixel at the address designated by the address designation means. monitoring device. (2) A monitor chain for digitally displaying digitized pixel data from the solid-state image sensor after analog-to-digital conversion of an image information reading device that reads images using a solid-state image sensor; an address specifying means for assigning an address to each pixel and specifying a specific address; a number specifying means for specifying the number of times pixel data at the address specified by the address specifying means is read; and a reading for reading the pixel data a specified number of times. means, and a detection means for detecting the maximum difference between the read data in the first reading stage;
A monitor device comprising display means for digitally displaying the maximum difference between the read pixel data detected by the detection means. (3) The monitor device according to claim i1, wherein an IC connector is used to send and receive signals, and the captured pixel data can be returned and output. (4) The monitor device according to claim 1, wherein the signal is transmitted and received by means of a lip that is directly connected to an IC chip of the image information reading device.