JPS63155865A - Picture processor - Google Patents

Abstract

PURPOSE:To attain the reading of an original and to display it in an erected display, even when the original is set upward or downward by providing a light transmissive original platen, an optical path changing means and an inverting means to invert a picture information having been photoelectrically converted, in parallel while sandwiching an photoelectric converting part. CONSTITUTION:When a picture is read from the bottom surface of a reader, a switching signal is H and in an inverting mode. An inverted plane image- formed on a sensor 13. In the inverting mode, a writing method in a line memory 8a is the same as a hot inverting mode, but an action at the time of reading is different. Namely, at the time of the inverting mode, in a read address generation circuit 86, the address of an even number line is outputted in a reversed order, like DOR FF, DOR FD..., when a horizontal address 83 is inputted in the order 0, 1, 2.... Besides, when the horizontal address 83 is inputted in the order 80, DOR 81, DOR 82..., the address of an odd number line is outputted in the reversed order like DOR 7F, DOR 7E, DOR 7D .... at the time of the inverting mode, a bit inversion circuit 8c bit-inverts and outputs an input data, and an erected picture information is stored in a picture memory 9.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an image processing device that reads, displays, compiles, and stores a document, and particularly relates to an image processing device that reads, displays, compiles, and stores a document, and particularly relates to an image processing device that reads a document, displays it, compiles it, and stores it. This relates to image processing gtcriL that can be set and read.

[Conventional technology]

Recently, the image of a document is detected by photoelectric conversion means, converted to electrical image information, and then the image information is displayed on a display device and edited or stored in a storage device.

A variety of image processing devices have been devised for carrying out countermeasures.

In such an image processing device, the image of the original is read by a scanner with a photoelectric conversion function installed under the optically transparent original table, so the side to be scanned of the original must be set facing downward. This caused the following problems.

(1) Since the user cannot read the document while checking the side to be scanned, reading errors are likely to occur.

(2) It is difficult to read the manuscript, which involves editing work such as extracting or overlapping parts of the manuscript.

In order to solve the above-mentioned problems, a reading device has been devised that can read an image of a document with the surface to be read of the document facing upward. A known example of such a device is the one described in Japanese Unexamined Patent Publication No. 60-72475. In this known example, the object to be read is scanned as a main scan by a scanner having a main power conversion function provided on the top surface of the document table.
Further, this scanner is moved on the document table to perform sub-scanning.

FIG. 2 is a diagram 18 of a known device! A side view for explaining the reading section is shown. Reference numeral 1 denotes a scanner for reading an original, which is composed of a reflecting mirror 11, a convergent ballast 7, an eyeglass 12, and a contact type CCD line image sensor (sensor) 15 that main scans the image of the original and performs photoelectric conversion processing. Q' is a light-transmissive original cover, Q is an original table, and 0 is a sheet-like original sandwiched between the original cover Q' and the original table Q. This image reading section operates as follows.

First, one main scanning line Δ of the original is detected by a light source (not shown)!
When irradiated, the reflected light is guided to the light converging glass fiber 12 by reflection m11 and is imaged on the sensor 13. After photoelectrically converting the image, the sensor 13 sends an image signal of one main scanning line to a control circuit (not shown). In this way, reading in the main scanning direction is performed. Reading in the sub-scanning direction is performed by moving the scanner in the R direction shown in FIG. 2, that is, perpendicular to the main scanning direction.

[The period and point of view that the invention attempts to solve]

The above-mentioned known device is effective when reading thin sheet-like originals, but when reading thick originals, it is necessary to increase the thickness of the device, which poses the problem of increasing the size of the device. Ta.

The purpose of the present invention was to solve such conventional problems, and even if the document is set with the surface to be read facing upward,
It is an object of the present invention to provide a small-sized image processing device that can be read even when set face down and can be displayed upright on a display device.

[Means for solving problems]

The above object is achieved by providing a light-transmissive document table, an optical path changing means, and an inverting means for inverting the photoelectrically converted image information in parallel above and below, sandwiching the photoelectric conversion section.

[Effect]

Regardless of whether the original is set on the upper or lower document table, the reflected light from the original is guided to the photoelectric conversion section by the optical path changing means, an image is formed on the photoelectric conversion section, and the image information of the horizontally reversed image is obtained by the reversing means. Invert.

By operating each means as described above.

It is possible to provide a small-sized image processing device that can set a document with the surface to be threaded facing either upward or downward, and that can always obtain an erect image.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a functional block diagram of an image processing apparatus according to the present invention. Reference numeral 2 denotes a reader having a photoelectric conversion section, which reads an image of a document, converts it into image information, and outputs it.

Reference numeral 14 denotes a rotary knob attached to an optical path changing means for guiding the reflected light of the original image to the photoelectric conversion section, and the switch 7α is turned on/off in conjunction with this rotary knob 14.8
is an image inversion circuit for horizontally inverting the image information inputted from the reader 2 according to the on/off state of the switch 7α, and is composed of, for example, an address generation circuit 80, a line memory 8α, and a bit inversion circuit 8C.

FIG. 3 shows a perspective external view of the reader 2 of the image processing apparatus of the present invention. Reference numerals 21 and 21' denote optically transparent document tables, which are attached to the top and bottom surfaces of the reader 20. Reference numeral 1 denotes a scanner installed between an original table 21 and an original table 21', which will be explained below. Reference numeral 15 denotes an fIE layer COD line image sensor (sensor) with a tt variable function, which main scans, for example, one line of 1024 pixels in time series and converts it into an electrical signal. The sensor 13 and the original convergent glass fiber 12 are fixedly attached to the carriage 17. A rotary knob 14 for rotating the reflecting mirror 11 and a switch 7α for indicating the rotation state are attached to one end of the reflecting mirror 11, and a carriage 17 is attached to the other end so as to be rotatable.
It is attached to. An interlocking pulley 1C is installed on the scanning motor 1α, which is capable of forward and reverse rotation, and a driven pulley (not shown) is installed at the other end, and a timing belt 19 is installed between these pulleys.
is obscured. A portion of this timing belt 19 is connected to the carriage 17 by a fixing member (not shown). As a result, the constant strain sleeve 1α rotates forward and backward, so that the carriage 17 moves in a wired direction away from the guide shaft IAK.

Next, a method of reading a document from the top and bottom sides of the reader 20 will be described. Figure 4 is a side view for explaining the operation of the reader 2 of the image processing apparatus of the present invention. 16a
1" is a light source that is only used to irradiate document 0*"', and light source 1# and light source 1 can be switched on and off by turning switch 7α.
6' is lit. Incidentally, by installing the light source in a part of the reflecting mirror 11, it is possible to easily reduce the number of light sources to one. Reference numeral 11 denotes a rotatable reflective arm, which is used to guide the reflected light of the original image from the top and bottom surfaces of the reader 20 to the sensor 13.

First, the operation when reading an image of a document from the top surface of the reader 20 will be described. Original 0 is set on the original table 21 with the 'gL reading surface facing downward. When the surface to be read of document 0 is irradiated by light source 1#, the reflected light in the section Δ) is changed in its optical path by the fixed reflector 11 as shown by the solid line, and is reflected onto the sensor 13 by the original converging glass fiber 12. image is formed.

Next, the operation when reading an image of a document from the bottom surface of the reader 2 will be explained. A document 0' is sandwiched between a flat base P such as a table and a document table 21'. At this time, the user can check the contents of the original theory 0' through the document table 21, 21'i. When the surface to be read of the document 0' is irradiated by the light source 1 gl, the reflected light in the section of Δl' is changed in its optical path by the reflecting mirror 11 fixed in a dotted state, and is sent to the sensor 13 by the original converging glass fiber 12. image on top.

Here, if the sensor 13 is arranged in such a direction that an erect image is formed on the sensor 13 when an image is read from the top surface of the reader 20, on the other hand, when an image is read from the bottom surface of the reader 2, an erect image is formed on the sensor 13. A mirrored image is formed. This will be explained with reference to FIG.

FIG. 5 (α1 is a diagram showing an example of an image of a document.
Figures (6+ and 6+ are images showing the image when the original surface is removed from the top surface of the reader 20, and it can be seen that an erect image can be obtained. FIG. 3 is a diagram showing an image when the camera is rotated, and it can be seen that an image with left and right sides reversed is obtained.

FIG. 6 shows circuit blocks of the image processing apparatus of the present invention. The configuration of the image processing device will be explained below with reference to this diagram.

6 is a CPU (central processing unit) that controls the entire system;
It is connected to each block by an address bus 61 and a data bus 62. The address bus 61 and the data bus 62 include an operation panel 3 in which a keyboard, a display section, etc. are arranged, a set meal motor drive device 1d for controlling the scanning motor 1α, and an image memory 62 for storing image information. It is connected.

The image processing circuit 7 is connected to the sensor 13 and to the sensor 1 and to the sensor 13 and to the sensor 1 and to the sensor 13 and to the sensor 1.
A switch 7α generates a switching signal 72 corresponding to the state of the A/D converter 75 and the reflecting mirror 11 for binarizing the analog image signal output from the converter 3 and converting it into 8-bit image information. When Tokiri 5115 No. 72 is 1H°, it becomes inversion mode and performs inversion processing of one line of image information, and when it is 'L'', it becomes non-inversion mode and switches with the surface image inversion circuit 8 that does not perform inversion processing of image information. Signal 72 is IH
The light source 1g' that lights up when e and the switching signal 72 are 11
It consists of a light source 1t that lights up when .

The image inversion circuit 8 has a line memory 8α that can store image information for two lines, and image memory addresses 85 and m output from an address generation circuit 80 that generates memory addresses.
The selector 76 and the switching signal 72 which switch the pUvcaa address bus 69 by the R/W signal 75 are
Bit inversion circuit 8C and MPU that performs 8-bit inversion processing when d° and does not perform bit inversion processing when ILI
It is composed of an OR circuit 78 which receives the R/W signal 63 outputted from the image memory 9, receives the R/W signal 73 outputted from the a-check circuit 71, performs a logical sum, and outputs the logical sum to the image memory 9.

Further, the address generation circuit 80 includes a horizontal address generation circuit 81 that generates a horizontal address 83 corresponding to the king'E:1 of the fixed tableware 1, and a vertical address 83 corresponding to the sub-scanning of the fixed tableware 1.
The vertical address generation circuit 82 that generates the image memory address 85, the horizontal address 83, and the vertical address 84 are input to the adder that generates the image memory address 85, and the address for reading the line memory 8α in normal order when the switching signal 72 is ILI. ,
A read address generation circuit 86 that generates an address for reading the line memory 8α in reverse order when the switch 100 72 is IHe, and a horizontal address 83 that is also used as an address for reading the line memory 8α. and a selector 88 for switching read address 87.

The function of the 7JO wing 8d is shown in the following equation.

Image memory address = horizontal address + vertical address × [
King ffi! line bit]÷8 FIG. 7 (α) is a diagram showing the configuration of a bit inverting circuit. 8C1&! It is an 8-bit data selector, equipped with two input terminals and one output terminal, and selects the B input when the S terminal is at °H° as shown in the Shinryu table in Figure 7 (bl). When the terminal is °L1, select A input'& -iW.Line memory data 8c is A
The inputs are connected in normal order, and the B inputs are connected in reverse order. Therefore, when the A input is selected, the output is not inverted, but when the B input is selected, the output is inverted.

FIG. 8 is a diagram showing the configuration of the read address generation circuit 86. 861 is an 8-bit data selector, and its size is the same as that of data selector 8c1. Horizontal address 8b with only A7 bits inverted by inverter 869 is applied to the A input, and inverter 8 is applied to the B input.
62 , 865 , 864 , 865 , 867°86
A signal with all bits inverted from 8, 869, and K is connected.

FIG. 9 is a diagram showing the data structure in the eline memory 8α. The line memory 8α has a total of 256 bytes, including fractional lines occupying the area from address 0 to p7F and addresses 580 to . It consists of even lines occupying the area up to $FF. One line is 128 bytes, which corresponds to several 1024 bits in the main scanning direction of the sensor 13. The odd lines of the line memory 8α store the image information of the odd lines read by the scanner 1 by sub-scanning, and the even lines store the image information of the even lines that have been removed by the IA constant scan.

FIG. 10 is a diagram showing the data structure within the image memory 9. The image memory 62 stores the original 1''-1 image. In the figure, X corresponds to the horizontal address 83, y corresponds to the vertical address 84, and x-)-y corresponds to the fine memory address 85. .One line is 128 bytes = 1024 bits, and consists of 1000 lines, similar to the line memory 8α.

Therefore, the capacity of the image memory 62 is required to be 151,072 bytes.

FIG. 11 is a diagram showing the operation timing of the image processing apparatus of the present invention. Below, according to Fig. 6 and M11, sensor 1
The circuit operation until the image information read in step 3 is stored in the image memory 62 will be explained.

First, the circuit operation when reading an image from the top of the reader 20 will be explained. At this time, the switching signal 72 is 1L", that is, in the non-inversion mode. When the royal image is formed on the sensor 13, the sensor 13 outputs an analog image signal in synchronization with the clock 68. This i-t is connected to the amplifier 66. is amplified by A/D converter 67 and outputted to line memory data bus 86.Horizontal address generation circuit 81 is
Changes at frequency division intervals and outputs "o, 1, 2..., $7FJ" and horizontal address 83. Selector 88 outputs R/Il'
The i number 73 is controlled so that the A terminal is selected for the period T1 to 14 specified by the basic link 74, and the S terminal is selected for the period T5 to T8. During the T1 to T4 period, the line memory 8α is in write mode due to the R/W signal 73, and when the horizontal address 85 is from 0 to 57F, the data on the odd line is stored, and when the address indicated by the horizontal address 85 is from $80 to 5FF, the data on the even line is stored. It gets sucked in.

When the horizontal address 83 is inputted as "o, 1, 2..." from the read address generation circuit 86, the addresses of the even lines are sequentially r$ao, , $81, , $
82,...'' is output. Also, the horizontal address 83 is "580* S 8' e, $82 t...
If you input something like ".", the addresses of the odd lines will be output in normal order like "l"o, 1.2...". During the period from T5 to T8, the line memory 8α is activated by the R/W signal 73.
is controlled to read mode and outputs 1 byte of data at the address indicated by read address 87 to bit inversion circuit 8c.

Bit inversion circuit ftl, F3c is switching signal 720 input or l
Since it is in Ll, that is, non-inversion mode, input data is output to the data bus 62 as is. During the period from T5 to 18, the image memory 85 is controlled to write mode by the R/l'1= signal 73, and the output data from the bit inversion circuit 8c is written to the address indicated by the image memory address 85.

Through the above-described operations, an image for one document is stored in the image memory 85.

Next, the circuit operation when reading an image from the bottom of the reader 2 will be explained. At this time, the switching signal 72 is "Hl", that is, it is in the inversion mode. An inverted image is formed on the sensor 13. In the inversion mode, the method of storing it in the line memo IJ 8α is the same as in the non-inversion mode. However, the operation at the time of reading is different.The read address generation circuit 86 &
In inversion mode, horizontal address 83 or “o*tp
2 +...” enters an even lie/+7)7)”L
/s is in reverse order K r5FF, 91E, sFD.

..." is output. Also, when the horizontal address 83 is inputted as "lower so #, $811, $821...", the odd-numbered line's at vy is in the reverse order t/Crp7F,
57E, 57D,.

..." is output. Also, the bit inversion circuit 8c
In the inversion mode, the input data is bit-inverted and output.

According to the above-mentioned operation 9, the image information of one line is inverted, and the royal image information is stored in the image memory 85.

As described above, according to the present invention, it is possible to read a document whether it is set facing up or down on the surface to be read, and it is possible to display a royal display directly above the display. The image processing device can be used on a real machine.

〔Effect of the invention〕

According to the present invention, it is possible to read a document whether the surface to be read is set facing upward or downward, so that it is possible to select a setting method suitable for the shape of the object to be read. Further, since the image memory always stores erect image information regardless of the setting method, it is possible to easily display an erect image on the screen of the display device. Furthermore, the small size of the scanner makes it possible to read thick originals.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram of the image processing device of the present invention, and FIG.
The figure is a diagram for explaining the image reading unit of a known example of fe[,
FIG. 5 is a perspective external view of the reader of the art processing device of the present invention;
Figure 4 is a side view to explain the operation of the reader, Figure 5 (α) is a diagram showing an example of an image of a manuscript, Figure 5 <CR is a diagram showing an image when a document is read from the bottom of the reader; Figure 6 is a circuit block diagram of the image processing device of the present invention; Figure 7 (α) is the bit inversion circuit 1111g
FIG. 7 TbI is a diagram showing the function of the circuit in FIG. 7 (α), FIG. 8 is a diagram showing the configuration of the read address generation circuit, and FIG. 9 is a diagram showing the data configuration of the line memory circle. , @
FIG. 10 is a diagram showing the data structure in the image memory, and FIG. 11 is a diagram showing the operation timing of the image processing apparatus of the present invention. Explanation of symbols 1... Stroke f: instrument 11... Reflector 12.
... Original convergence glass fiber 1t... Sensors 21, 21'... Original table 0.0'... Original s14... Rotation knob 15... Switch 72... Switching signal 86... Read address generation circuit 8α...Line memory 8C...Bit inversion circuit
M Figure 17 Figure (α) ■ Dimension (b) Connection] Table 1 B Record Jb q Mouth 1″Lf3 t＼゛ito=+024σItoyama 10
Kuchiyama 11th Σ≧Yu, Lee L issue '73

Claims (1)

[Claims] 1. A photoelectric conversion unit for photoelectrically converting the image of the original; a light-transmissive original table sandwiching the photoelectric conversion unit above and below; and changing the optical path of the reflected light from the image of either one of the originals to perform the photoelectric conversion. What is claimed is: 1. An image processing apparatus comprising: an optical path changing means for guiding the image information to the photoelectric conversion section; and an inversion means for inverting the image information photoelectrically converted by the photoelectric conversion section.