JPH06125452A - Image data processing device and image data processing method - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an image data processing device and an image data processing method that do not require precise timing management, and do not require a page buffer. [Configuration] When performing format data combination, The image is assembled (SB2), the image data for 10 lines is read and transferred to lines 2 to 11 of the image data buffer (SB3). Further, one line of image data is transferred to line 1 of the image data buffer (SB4), and the image data from line 2 to line 10 of the image data buffer is changed to "line 1".
The lines are transferred and combined (SB5). Next, from line 1 of the image data buffer, the data for one line is
When it is transferred to the printer and printed (SB6), the loop of SB4 to SB7 is repeated until the processing of line 11 is completed, and the loop of SB3 to SB8 is repeated.
Complete the screen printing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image data processing device and an image data processing method used for obtaining a composite image.

[0002]

2. Description of the Related Art Conventionally, a device conceptually shown in FIG. 17 is generally known as a device used for obtaining a composite image. That is, the image reader 1 is composed of a lens and a CCD that scans an image of a subject formed by the lens, and outputs image data for each line. On the other hand, the ROM 2 stores font data, and the font data read from the ROM 2
The image data output from the image reader 1 is input to the printer unit 4 via the switching circuit 3. Therefore, the image data is transferred to the printer unit 4 when the switching circuit 3 is switched to the image reader 1 side, and the font data is transferred to the printer unit 4 when the switching circuit 3 is switched to the ROM 2 side. By performing printing based on this, a composite image in which the image of the subject and the image based on the font data are mixed can be printed.

[0003]

However, in such a conventional apparatus, a path on the image reader 1 side for outputting image data and an RO for outputting font data.
By providing a path on the M2 side, switching both paths, and selectively supplying both data to the printer unit 4,
It is configured to print a composite image. Therefore, in order for the printer unit 4 to properly print a predetermined composite image based on the image data and the font data, the switching circuit 3 is accurately switched in accordance with the print timing of the printer unit 4 to output both data. Since time-division input is required, precise timing management is required.

It is also conceivable to provide a page buffer and create a print image for one page that has been completed in advance in this page buffer, but this requires a memory for one page. There is a drawback that printing cannot be started until the screen shooting is completed and the composite image is completely created in the page buffer.

The present invention has been made in view of such conventional problems, and provides an image data processing apparatus and an image data processing method which do not require precise timing management and do not require a page buffer. That is the purpose.

[0006]

In order to solve the above problems, in an image data processing apparatus according to the present invention, an image of a subject is formed by an optical system, and the image forming surface is scanned by a line sensor. Image data creating means for creating image data for each line, and a line buffer for storing the image data for one line created by the image data creating means,
Data generating means for generating data for synthesizing with the image data for each line, data for one line generated by the data generating means, and image data for one line generated by the image data generating means The gist of the present invention is to include a composite data creating means for creating composite data by combining in the line buffer and a composite data output means for outputting the composite data created by the composite data creating means.

In the image data processing method according to the present invention, the image data creating process for creating the image data line by line and the data generating process for creating the data for combining with the image data line by line. And a combined data creation process for creating one line of combined data by combining the one line of data generated by the data generation process and the one line of image data created by the image data creation process in the same buffer. And an output process for outputting one line of data created by the data creating means.

[0008]

In the image data processing device having the above structure,
The image data of one line created by the image data creating means is stored in the line buffer, while the data generating means generates the data to be combined for each line and the data to be combined with the image data of one line. Are combined in the line buffer. Therefore, since the combined data for one line obtained by combining the both data is prepared in the line buffer in advance, it is not necessary to output the both data in a time-division manner or to store in the page buffer, and the combined data is output. By doing so, a composite image based on the composite data can be printed.

Further, in the image data processing method according to the above configuration, after the image data and the image data are created and generated one line at a time, the composite data is created based on the both data. By outputting the created composite data, a composite image based on the composite data can be printed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. That is, FIG. 1 shows an external structure of an image-pickup copying apparatus to which the present embodiment is applied. This image-pickup copying apparatus is an apparatus for directly transferring a subject onto thermal paper, and is an apparatus main body 1
A movable lens 12 is mounted on the front surface of the lens 1.
Further, on the side surface of the apparatus body 11, a mode key 13 for switching between a combination mode for combining the format data and the image data stored in advance and a normal mode, and one of a plurality of format data stored in advance A select key 14 for selecting is provided.

Further, on the side surface portion, when character data such as a title or a document name is combined at a predetermined position (item entry column) of the format data selected by the select key 14, the external information device 15 sends the character data. An external input terminal 16 for inputting key input data, an execution key 17 operated when synthesizing the format data selected by the select key 14 and the key input data from the external input terminal 16, and the mode switching and A display unit 18 for displaying the operation status such as format selection is provided.

A start button 19 that is operated when starting a printing operation is provided on the upper surface of the apparatus main body 11, and a viewfinder 20 for visually recognizing a subject image input through the lens 12 is provided. There is.
Then, by operating the area designating key 21 while looking through the finder 20, the area to be imaged in the subject image is designated. Further, an opening 22 is provided on the upper surface of the apparatus main body 11, and a roller 29 provided on a printer 23 for thermally transferring a subject image onto the thermal paper P is mounted on the opening 22.

FIG. 2 is a block diagram showing the internal structure of the image pickup copying apparatus. A line sensor 30 having CCDs vertically arranged is movably arranged behind the lens 12 and the line is arranged. The sensor 30 moves the image plane of the lens 12 in the horizontal direction (arrow direction) to
Read the screen image. That is, the line sensor 30
Is vertically arranged, for example, 1760 dot / Li
Scan the vertical direction of the image plane by the CCD of ne
The image signals of the lines are output, and the image signals are sequentially output for each vertical scanning line along with the movement in the horizontal direction.

The image signal output from the line sensor 30 is amplified by the preamplifier 31, the gain is adjusted to be constant by the AGC amplifier 32, and the edge enhancement is corrected. The image signal output from the AGC amplifier 32 is processed by the shading correction circuit 33 to correct the brightness of the central portion and the peripheral portion of the image, and then binarized by the binarizing circuit 34 and binarized. The binarized image signal is input to the image data processing circuit 35. Details of the binarization circuit 34 and the image data processing circuit 35 will be described later.

The controller 36 controls the entire system, and operation information of various keys shown in FIG. 1 is input from the key input unit 29. Then, the controller 36
Controls the AGC amplifier 32, the binarization circuit 34, the image data processing circuit 35, and also controls the thermal head control unit 37 and the motor control circuit 38 based on the input operation information and the like. The motor control circuit 38 includes a CCD moving motor 39 for driving the line sensor 30 in the horizontal direction, a lens moving motor 40 for driving the lens 12 in the optical axis direction for focusing, and the roller 2.
4 (FIG. 1) is driven to control the feed motor 41.

Further, the thermal head controller 37 is
The thermal head drive unit 42 is controlled based on the position control signal output from the controller 36, the combined data output from the image data processing circuit 35, and the like. The thermal head drive unit 42 operates according to an input control signal or the like, whereby the roller 2
An image for one screen when the line sensor 30 horizontally moves once on the image forming surface of the lens 12 is thermally transferred onto the thermal paper P which is fed and driven by 4.

FIG. 3 is a block diagram showing the details of the binarization circuit 34. The comparator 111 compares the image data sent through the shading correction circuit 33 with a threshold value and binarizes it. In addition, a pseudo halftone is realized by swinging this threshold value by a dither table.
The dither table is stored in the dither table storage unit 112 as a table of 4 rows and 4 columns. Although various patterns of this dither table are known, for example, a pattern called Bayer shown in FIG. 4 is stored.

The dither table storage unit 112 is designated by the dither table address counter 113. A line clock synchronized with one line of image data is supplied from the controller 36 to the dither table address counter 113, and a designated column is updated in synchronization with the one line clock, and four threshold data for one column are dithered. Forwarded to 114.

The dither register 114 consists of four digits of registers 0 to 3, and the digit is addressed by the dither register counter 115. Four threshold value data are sequentially read in synchronization with one dot of image data. , To the comparator 11. The dither register counter 115 is supplied with a reference clock synchronized with one dot of the image data from the controller 36, and the digit designated by the dither register 114 is sequentially updated in synchronization with this reference clock. Then, the comparator 111 compares the threshold value supplied from the dither register 114 with the image data, and outputs the binarized data according to the comparison result.

FIG. 5 is a block diagram showing details of the image data processing circuit 35. An area designating signal is supplied from the controller 36 to the area designating unit 351 in response to the operation of the area designating key 21. That is, finder 2
An image area can be designated by operating the area designation key 21 while looking at 0. However, the area designation unit 351 distinguishes image data in the designated area from data outside the designated area, And outputs only the data to the zoom processing circuit 352. Zoom processing circuit 352
Is supplied from the controller 36 with a synchronous clock and a double cycle clock having a cycle twice that of the synchronous clock.

FIG. 6 is a block diagram showing details of the zoom processing circuit 352. The magnification register 251 stores the magnification input from the controller 36 as 8-bit data, and inputs the stored 8-bit magnification data to the selector (8: 1) 252. The synchronous clock (a) output from the controller 36 is input to the 3-bit counter 253 and the selector (2: 1) 524. The 3-bit counter 253 sequentially outputs the 3-bit counter value (c) of 0 to 7 to the selector (8: 1) 252 based on the synchronous clock (a). Selector (8: 1)
252 sequentially inputs only the bit corresponding to the counter value (c) input from the 3-bit counter 253, out of the 8-bit data input from the magnification register 251, to the selector (2: 1) 254.

The selector (2: 1) 254 has a double synchronous clock (b) composed of the synchronous clock (a) and twice the frequency of the synchronous clock (a) (therefore, the cycle is 1/2 of the synchronous clock). ) And are input from the controller 36. Then, the selector (2: 1) 254 selects the synchronous clock (a) when the magnification register value output (d) input from the selector (8: 1) 252 is “0”, and “1” is output. If it is “2,” the double synchronization clock (b) is selected and the count clock (f) is set to 4
Output to the bit counter 255.

The 4-bit counter 255 synchronizes the selected address (g) consisting of 4-bit data with 16-bit F. F (Fl
(ip-Flop) block 256 and the 8th and 16th count output unit 258. 16 bit F. Image data D ₁ is input to the F block 256 via the area designating unit 351 and a selection address (g) is input.
Is input and 16 bit F. The F block 256 latches the image data D ₁ at the corresponding bit at the input timing of the selected address (g).

The upper and lower selectors 257 are the eight 16th
In synchronization with the 8/16 count output (h) from the th count output unit 258, the upper 8 bits and the lower bits of the 16-bit FF block 256 are switched. And 8
8 bits of the enlarged image data consisting of bits
Image data output alternately from the t side and the lower 8 bit side, and the output image data is supplied to the line 1 of the image data buffer 354 and stored therein via the block selection circuit 353 of FIG.

The block selection circuit 353 of FIG. 5 is connected to the controller 36 via a data and address bus, and also has a data transfer control unit 355, a format data storage unit 356, and a key input data storage unit 35.
7. The combined format data storage unit 358 is connected. The format data storage unit 326 is composed of a ROM, and stores a plurality of formats including frame data corresponding to image data obtained from a subject and fixed format data such as a title display set in a part thereof.

FIG. 7 shows an example of a format stored in the format data storage unit 356. (1) in the figure
Is a format when frame composition is not performed, and this format is composed only of data capable of printing the cutoff lines K on both sides of the photographing screen S formed by the image data. Also, (2) in the figure is a format for frame composition, and this format is the cutoff line K.
Besides, it is composed of a frame W, a title display portion T, a center marker M, and date / time D printable data. In the format of FIG. 2B, the frame line W, the cutoff line K, and the like are configured by the number of dots shown in FIG. For example, the cut line K has a length of 1680 dots (the length of the short side in A4 size thermal paper) and a width of 8 do.
The distance between t and the cutoff line K is 2376 dots, and the frame line W, the title display portion T, the center marker M, and the date D are configured by the number of dots shown.

The key input data storage unit 357 is a RAM
The key input data such as the title and document name transferred from the external input terminal 16 via the data transfer control unit 355 is stored. Synthesized format data storage unit 3
Reference numeral 58 denotes a RAM that stores the format data selected and extracted from the format data storage unit 356 and the key input data read from the key input data storage unit 357 in accordance with the operation of the execution key 17 when the combination mode is set. It is composed and stored. Image data buffer 354
Is line 1 to line 11 (1760 bit = 220b)
11 line buffers, and a block selection circuit 359 is also provided at the output stage of the line buffers.

Here, the line 1 of the image data buffer 354 is a buffer for composition, and the zoom processing circuit 352.
When the image data is supplied from, the block selection circuit 353 selects the line 1 and the line 1 stores the image data for one line. Further, the image data of 10 lines read from the combined format data storage unit 356 is stored in line 2 to line 11 sequentially selected by the block selection circuit 353, one line at a time.

When one line of image data is stored in the line 1, the block selection circuit 359 provided in the output stage first selects the line 2 and inputs the image data stored in the line 2. It is transferred to the block selection circuit 353 of the stage. Then, the block selection circuit 35
3 selects line 1 and stores image data in line 1. The image data and the image data for one line stored in the line 1 are combined by 1 byte, and the combined data obtained by combining the image data and the image data is sent to the print data processing unit 340 via the block selection circuit 359. Supplied.

The print data processing unit 340 uses 1 byte.
220 by for one line of composite data transferred by e
It is converted into serial data of te and transferred to the thermal head controller 37. The thermal head controller 37
The thermal head drive unit 42 is controlled based on the printer head control signal input from the controller 36 and the composite data, and the thermal head drive unit 42 operates according to the input signal, so that the roller 24 feeds and drives. Line 1 for thermal paper P
Printing for one line is performed by the combined data for one line that is combined in.

When the next one line of image data is stored in line 1 of the image data buffer 354, the block selecting circuit 359 in the output stage selects line 3 and the line 3 is stored. The image data is transferred to the line 1 and is combined with the image data on the line 1 in the same manner as described above, and then output from the print data processing unit 340. Similarly, one line of image data sequentially stored in line 1 and the image data of lines 4, 5, ... 11 are combined and printed line by line. Then, when the composition of the image data stored in the lines 2 to 11 is completed, the image data for the next 10 lines is merged with the format data storage unit 35.
6 is stored in lines 2 to 11 selected by the input stage block selection circuit 353, and the synthesis is performed line by line in the same manner.

If the image data stored in lines 2 to 11 and the image data for the next 10 lines are the same data, the data for the next 10 lines from the combined format data storage unit 356 will be used. Line 2 to line 11 without reading the image data of
The previously used image data stored in is used as is. That is, the image data of the frame W schematically shown in FIG. 9 is the combined format data storage unit 356.
Was assumed to be stored in each When data group 10 lines and a, and a ₁ and a _n, differs whereas the other 10 lines data _{a 2 ~a n-1, a} 2 To an _-1 are data that can print three horizontal ruled lines, and are all the same data.

Therefore, in this case, 1 which constitutes a ₂
When the image data for 0 lines is stored in the lines 2 to 11 and the synthesizing with the image data is completed line by line, the image data a ₃ for the next 10 lines is stored in the combined format data storage unit 356. The data is similarly read using the data of a ₂ stored in the line 2 to line 11 again without reading from. Then, if the image data for 10 lines forming a ₂ is used to synthesize n-2 times in succession, the format data and the image capable of printing three horizontal ruled lines a _{2 to} a _n-1 are displayed. The composition with the data is completed. Therefore, a ₁ without reading n times,
By reading a ₂ and a _n and storing them in lines 2 to 11, the entire image data shown in FIG. 9 can be combined with the image data.

Next, the operation of the present embodiment having the above configuration will be specifically described. That is, when capturing an image of a subject such as a blackboard, look into the finder 20 to confirm the subject to be captured, and if necessary, specify the area designation key 21.
By operating, the area to be captured in the subject image is specified. Next, when the start button 19 is operated, the line sensor 30 is activated to output the image data of one vertical line at the left end on the image plane of the lens 12.
The image data for one line is stored in the preamplifier 31, AG
2 via the C amplifier 32 and the shading correction circuit 33.
It is input to the digitization circuit 34.

The binarization circuit 34 operates according to the flow chart shown in FIG. 10 and the timing chart shown in FIG. 11. When the line clock is output from the controller 36, the dither register address counter 11
5 is reset (SA1). As a result, the value of the dither register address counter 115 becomes "0", and the threshold value previously stored in the register 0 of the dither register 114 is designated at the timing of the basic clock as shown in FIG. Then, the comparator 111 compares the threshold value stored in the register 0 corresponding to the value of the dither register address counter 115 with the image data for one dot input from the shading correction circuit 33 in synchronization with the basic clock. Then, if the image data is above the threshold value, it is converted to black, and if it is less than the threshold value, it is converted to a white digital image signal,
Thereby, the image data is binarized (SA2).

Next, the controller 36 determines whether or not the reading of the 1-line data is completed (SA3), and if it is not completed, it continues to output the reference clock, and the dither register address counter 115 outputs the next clock. The value is updated at the timing of the basic clock (SA4). Therefore, in the same manner as described above, the comparator 111 inputs the image data for one dot input at the same basic clock timing as the threshold values of the registers 0 to 3 designated by the updated value of the dither register address counter 115. And outputs the binarized data. That is, the loop of SA2 to SA4 is repeated until the reading of one line data is completed, so that the dither register address counter value becomes 0 → 1 → 2 → 3 → by the timing of the basic clock as shown in FIG. It changes in the order of 0 ... Then, registers 0 to 0 of the dither register 114 designated by this dither register address counter value
The image data is sequentially binarized by the dither value stored in No. 3 and output.

When the reading of 1-line data is completed and the binarization of 1-line data is completed, the dither table address counter 113 is updated (SA5).
The value of the dither table address counter 113 indicates the next column in the dither table storage unit 112 after the column that has been shown so far. Subsequently, four pieces of data in the column indicated by the dither table address counter 113 are read out, and the read four pieces of data are written in the respective registers 0 to 3 of the dither register 114, and the dither register 114 is read.
Is updated (SA6). Therefore, at the time when the flow shown in FIG. 10 becomes END, each of the registers 0 to 3 of the dither register 114 stores four threshold values to be used for binarizing the next 1-line data. There is.

Therefore, when the next one-line clock is output from the controller 36 and the operation according to the flowchart of FIG. 10 is executed in the same manner as described above, the dither table storage unit 112 stores the next line in the previous column. Binarization of 1-line data is executed using the four threshold values that have been set. That is, at the time of binarization, one of the threshold values of 4 rows and 4 columns stored in the dither table storage unit 112 is 1
One line is sequentially stored in the dither register 114 for each line of image data, and the image data of one line is binarized by using the threshold value forming the one column. The image data is the image data processing circuit 3
Input to 5.

In the image data processing circuit 35, the area designating unit 351 cuts the image data outside the designated area in accordance with the area designating signal supplied from the controller 36 by the operation of the area designating key 21 at the start of image pickup. , And supplies only the image data in the area to the zoom processing circuit 352. Then, the zoom processing circuit 352
Operates according to the time chart of FIG. 12 showing the states of points (a) to (h) of FIG. That is, the synchronous clock (a) having a predetermined cycle is the 3-bit counter 25.
3 and selector (2: 1) 254, and 3 bits are input.
The counter 253 outputs the 3-bit counter value (c) of 0 to 7 in synchronization with the rising edge of the synchronous clock (a).
Then, the secreter (8: 1) 252 outputs the scale factor register value output (d) from the 3-bit counter 253 in synchronization with the 3-bit counter value (c). That is, as shown in the lower part of FIG. 12, the content of the magnification register 251 is “001.
If it is 10010 ", the magnification register value output (d)" 00110010 "is sequentially output corresponding to each of the 3-bit counter value (c)" 01234567 ".

The count clock (f) from the selector (2: 1) 254 is the synchronous clock (a) if the scale factor register value output (d) is "0", and the scale factor register value output (d). ) Is "1", it is a double synchronization clock (b). Therefore, if the scale factor register value output (d) is “00110010” as in this example, the scale factor data output value (d) is 1 when the 3-bit counter values (c) 2, 3 and 6 are 2 Count clocks (f) are output and the 3-bit counter value (c) is "7".
11 clocks are output by the time.

On the other hand, the 4-bit counter 255 outputs the 0th to 16th latch selection addresses (g) in synchronization with the count clock (f), and the 16-bit F / F block 256 outputs the latch selection address (g). The image data (e) is latched at the timing. Therefore, the image data (e) becomes 11 by the time the 3-bit counter value becomes 0 to 7.
Will be latched once.

That is, as shown in (1) of FIG.
Assuming that eight pieces of image data corresponding to an arbitrary part of forming the image A are input to the serial, and the magnification data of the magnification register 251 is “00110010” at this time, the value of the magnification data is “1”. ", The corresponding image data is latched twice at the timing of the double synchronization clock, and the 8-bit image data is output as 11-bit expanded data. Therefore, if the expanded data that is output in 11-bit units with respect to the 8-bit image data is transferred in 8-bit units by the operation of the upper and lower secretors 257, it will be 11/8 that of the image before expansion.
Image data for one line capable of thermally transferring an image enlarged in the vertical direction by a factor of 1, that is, 1.375 times is stored in line 1 of the image data buffer 354 via the block selection circuit 353. Therefore, if the printer 23 is operated by using the image data for one line sequentially stored in the line 1, the image enlarged in the vertical direction is printed at 1.375 times as shown in (2) of FIG. can do.
The horizontal expansion of the image to be printed is realized by continuously printing the image data for one line stored in line 1 a plurality of times in accordance with the enlargement ratio.

On the other hand, when the mode key 13 is operated to set the composite mode before the start button 19 is turned on, the format data storage section 356 shown in FIG.
Among the plural types of format data stored in, the format data selected by operating the select key 14 in advance is read. Further, when the title or the like to be combined with the format data is input by the external information device 15 such as a personal computer and the key input data is input from the external input terminal 16, the key input data is stored in the data transfer unit 355. And is stored in a predetermined storage area of the key input data storage unit 357.

On the other hand, in response to the operation of the execution key 17, the controller 36 starts the operation according to the flowchart of FIG. 15 and determines whether or not the format composition should be performed based on the operation mode currently set. (S
B1). If the current operation mode is the combining mode, the font data is transferred from the format data storage unit 356 to the combined format data storage unit 358 in order to perform the format combination, and an image is assembled in advance (SB2). Further, the operation A shown in FIGS. 16 and 17 is executed to execute the combined format data storage unit 3
Image data for 10 lines is read from 58 and transferred to lines 2 to 11 of the image data buffer 354 (SB3).

Subsequently, the operation C is executed to transfer the image data for one line from the zoom processing circuit 352 to the line 1 of the image data buffer 354 (SB4).
Next, the operation B is executed to transfer one line of the image data from the predetermined line of the lines 2 to 10 of the image data buffer 354 to the "line 1" and combine them (SB5). Further, operation D is executed to transfer one line of data (combined data) from line 1 of the image data buffer 354 to the printer 23 for printing (SB6). Then, it is determined whether or not the above processing has been executed up to line 11 of the image data buffer 354 (SB7), and SB4 to SB4 until the processing of line 11 is completed.
The loop of SB7 is repeated.

Therefore, the loop of SB4 to SB7 is repeated 10 times until the processing of the line 11 is completed, whereby the printing based on the combined data of 10 lines is completed. At this time, as shown in the timing chart of FIG. 15, while the printer 23 is printing one line,
The operations C, B, and D described above are sequentially executed. Therefore, when the printer 23 completes the printing of one line,
Generation of the combined data of the next one line has been completed, which enables smooth and continuous printing of each line.

When the printing based on the composite data for 10 lines is completed in this way, it is judged whether or not the above processing has been executed up to the final line of all image data (SB8), and the processing up to the final line. If is not completed, it is further determined whether the image data for the next 10 lines is the same as the image data for the previous 10 lines (SB9). If the image data for the next 10 lines is the same as the image data for the previous 10 lines, the loop of SB4 to SB7 is repeated again. As a result, composite data for 10 lines is generated using the same image data as previously stored in lines 2 to 11, and printing based on this is completed. If the image data for the next 10 lines is different from the image data for the previous 10 lines, the processing from SB3 is executed to combine the newly read image data for 10 lines with the image data. Printing is executed based on this composite data. And line 2 to line 10
When the data read out to become the final line of the image data becomes YES in SB8, the printing for one screen is completed.

In this embodiment, lines 1 to 1
Although the image data buffer 354 having the line buffers up to the line 11 is used, the image data buffer having only a single line buffer is used, and the RA
The image data may be read line by line from M (combined format data storage unit 356) and the image data and the image data may be combined in a single image data buffer.

[0049]

As described above, the present invention creates image data for each line, generates data for combining with the image data for each line, and combines both data in a line buffer. Then, the synthetic data was created. Therefore, when printing is performed based on the combined data, since the combined data for one line is created in advance, precise timing management is required by sequentially transferring the combined data to the printer unit. Instead, a composite image can be printed.

Furthermore, since the image data and the data to be combined with the image data are combined and output line by line, the memory for one page is not required,
Further, even if the shooting of one screen is not completed, the printing of the combined image can be started based on the combined data which is sequentially output line by line.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external configuration of an image pickup copying apparatus to which an embodiment of the present invention is applied.

FIG. 2 is a block diagram showing an internal structure of the imaging copying apparatus.

3 is a block diagram showing details of a binarization circuit in the block diagram of FIG. 2. FIG.

FIG. 4 is a diagram showing an example of a dither pattern.

5 is a block diagram showing details of an image data processing circuit in the block diagram of FIG.

6 is a block diagram showing details of a zoom processing circuit in the block diagram of FIG.

FIG. 7 is a diagram showing an example of an image printed by image data.

FIG. 8: do of image printed by image data
It is a figure which shows t number.

FIG. 9 is a diagram showing an example of a data configuration for every 10 lines of image data.

FIG. 10 is a flowchart showing the procedure of a binarization process executed by the binarization circuit.

FIG. 11 is an operation timing chart of the binarization circuit.

12 is a timing chart showing the states (a) to (f) shown in FIG.

FIG. 13 is an explanatory diagram showing the processing content of image data enlargement processing.

FIG. 14 is a flowchart showing an operation procedure of the image data processing circuit.

FIG. 15 is an operation timing chart of the image data processing circuit.

FIG. 16 is a conceptual diagram showing a process of creating composite data in the image data processing circuit.

FIG. 17 is a block diagram showing a conventional technique.

[Explanation of symbols]

 11 Device Main Body 12 Lens 23 Printer 30 Line Sensor 34 Binarization Circuit 35 Image Data Processing Circuit 252 Zoom Processing Circuit 354 Image Data Buffer 355 Data Transfer Section 356 Format Data Storage Section 357 Key Input Data Storage Section 358 Combined Format Data Storage Section

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location G09G 5/36 8121-5G

Claims (23)

[Claims] 1. An image data forming means for forming an image of a subject by an optical system, scanning an image forming surface by a line sensor to create image data for each line, and an image data forming means for forming the image data. A line buffer for storing one line of image data, a data generating unit for generating data for combining with the image data for each line, one line of data generated by the data generating unit, and the image data creation Composite data creating means for creating composite data by combining the one-line image data created by the means in the line buffer, and composite data output means for outputting the composite data created by the composite data creating means An image data processing device comprising: 2. The image data processing apparatus according to claim 1, wherein the image data creating means has an enlarging processing means for enlarging the image data for each line obtained by scanning the line sensor. . 3. The enlargement processing means outputs a reference clock and a frequency-divided clock having a frequency that is a predetermined multiple of the reference clock, and enlargement of image data obtained by scanning the line sensor. Enlargement magnification input means for inputting a magnification, and a clock selection for selecting a reference clock and a frequency-divided clock output by the clock means on the basis of the enlargement magnification input by the enlargement magnification input means, and outputting as an enlargement clock 3. A latch means for latching and outputting the image data input by the image data input means in synchronism with the expanded clock output by the clock selecting means. Image data processing device. 4. The image data processing apparatus according to claim 1, wherein the image data creating means has a binarizing means for sequentially binarizing image data obtained by scanning the line sensor. 5. The binarizing means includes a line detecting means for detecting a scanning line of the line sensor, a dither pattern storing means for storing a threshold value of a two-dimensional dither pattern, and the line detecting means for detecting. A threshold value designating means for designating a threshold value of the two-dimensional dither pattern corresponding to the scanning line in the dither pattern storing means, and scanning the line sensor based on the threshold value of the two-dimensional dither pattern designated by the threshold designating means. The image data processing apparatus according to claim 4, further comprising: a binarizing unit that sequentially binarizes the obtained image data. 6. The image data processing apparatus according to claim 1, wherein the data generating means is a memory in which the data to be combined is stored in advance. 7. The data stored in the memory is used for transferring a cut line indicating a boundary of one screen onto the paper when a one-screen image is transferred onto the paper based on the composite data. 7. The image data processing device according to claim 6, wherein cutoff line data is present. 8. The image data according to claim 6, wherein the memory stores a plurality of types of the data to be combined and further comprises a selection unit for selecting any one of the plurality of types of data. Processing equipment. 9. The image data processing apparatus according to claim 1, wherein the data generating means is an external information processing apparatus connected to the image data processing apparatus. 10. An image data forming means for forming an image of an object by an optical system and scanning an image forming surface by a line sensor to form image data for each line, and an image data forming means for forming the image data. A line buffer for storing image data of one line, a data generating unit for generating data to be combined with the image data, a data buffer for storing at least a part of the data generated by the data generating unit, and the data Composite data creating means for creating composite data by synthesizing one line of data stored in the buffer and one line of image data created by the image data creating means in the line buffer; A composite data output means for outputting the composite data created by the composite data creating means; Data processor. 11. The image data processing apparatus according to claim 10, wherein the composite data creating means creates the composite data by repeatedly using the data stored in the data buffer. 12. The image data processing apparatus according to claim 10, wherein the image data creating means has an enlarging processing means for enlarging the image data for each line obtained by scanning the line sensor. . 13. The enlargement processing unit outputs a reference clock and a frequency-divided clock having a frequency that is a predetermined multiple of the reference clock; Enlargement magnification input means for inputting a magnification, and a clock selection for selecting a reference clock and a frequency-divided clock output by the clock means on the basis of the enlargement magnification input by the enlargement magnification input means, and outputting as an enlargement clock 13. Means, and latching means for latching and outputting the image data input by said image data input means in synchronization with the expanded clock output by said clock selecting means. Image data processing device. 14. The image data processing apparatus according to claim 10, wherein the image data creating means has a binarizing means for sequentially binarizing the image data obtained by scanning the line sensor. 15. The binarizing unit includes a line detecting unit that detects a scanning line of the line sensor, a dither pattern storing unit that stores a threshold value of a two-dimensional dither pattern, and the line detecting unit. A threshold value designating means for designating a threshold value of the two-dimensional dither pattern corresponding to the scanning line in the dither pattern storing means, and scanning the line sensor based on the threshold value of the two-dimensional dither pattern designated by the threshold designating means. 15. The image data processing apparatus according to claim 14, further comprising: a binarizing unit that sequentially binarizes the obtained image data. 16. The image data processing apparatus according to claim 10, wherein the data generating means is a memory in which the data to be combined is stored in advance. 17. The data stored in the memory is used to transfer a cut line indicating a boundary of one screen onto the paper when a one-screen image is transferred onto the paper based on the composite data. The image data processing device according to claim 16, wherein cutoff line data is present. 18. The image data according to claim 16, wherein the memory stores a plurality of types of the data to be combined, and further comprises a selection means for selecting any one of the plurality of types of data. Processing equipment. 19. The image data processing apparatus according to claim 10, wherein the data generating means is an external information processing apparatus connected to the image data processing apparatus. 20. An image data creation process for creating image data line by line, a data generation process for generating data line by line for combining with the image data, and a line generation process for the line generated by the data generation process. The data and the 1-line image data created by the image data creation process are combined in the same buffer to create 1-line composite data, and the 1-line image created by the data creating means. An image data processing method comprising: an output process for outputting combined data; 21. An image data creation process for creating image data line by line, a data generation process for generating data to be combined with the image data, and data generated by the data generation process for each line transfer. And a combined data creation process for creating one line of combined data by combining the one line of data transferred by the transfer process and the image data created by the image data creating process in the same buffer. An image data processing method, comprising: an output process for outputting one line of combined data created by the data creating means. 22. The image data processing method according to claim 21, wherein the composite data creation process is executed between the transfer process and the output process. 23. The image data processing apparatus according to claim 21, wherein the group of data generated by the data generating process is repeatedly transferred line by line to execute the combined data creating process.