JPS62120160A - Picture parameter processor - Google Patents

Abstract

PURPOSE:To calculate exactly a read scan area by calculating the input scan area of an original corresponding to the coordinate values of a (head crown) and a (jaw part) on a face photograph original to be read-scanned and an output dimension. CONSTITUTION:The input original 38 of a face photograph to be read is placed on a carrier sheet part 32. The kind of the face photograph is designated by pen-touching an item key within a parameter key part 35. Thereby, each of output dimsnsion values can be held on a memory. Next, two points, a (head part) and a (jaw), are pen-touched, and their coordinate values are fetched in a calculation unit. And the input scan area of the face photograph original is calculated with the calculation unit based on an input coordinate value and an output dimension in which the kind of the face hotograph is designated. Thus, a simplified scan area in a picture reading can be geiven automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an image parameter processing device for calculating a scanning area for image reading, which is necessary for an image reading device for reading black-and-white originals and images such as 'Yomahara Masaaki'. .

BACKGROUND OF THE INVENTION Image reading devices that have been used in the past include four types of Glocks as described below. 1, 1) A so-called scanner scanning mechanism section that optically and mechanically scans an input document and obtains an analog image signal through photoelectric conversion.

2) An image signal processing unit for obtaining a desired output image signal from an analog image signal.

3) Input the control data that instructs the reading area of the parameters during both signal processing Data input kite 4) Control the overall flow of operation Department,
.

Further, the image reading device is configured such that following the input operation of various control data to the control data input section, the sequence control section issues a command to the image signal processing section and the scanner scanning mechanism section, and the operation is started. There is.

To specify the reading range in such an image reading device, consider a two-dimensional coordinate system with the physical origin of the image reading device as the reference point, and calculate the coordinate values of the two vertices on the diagonal of the document to be read. A method for inputting coordinate values from the control data input section and controlling the reading area based on the data.
There are methods such as using the numeric keypad and using a digitizer.

However, in the above method, it is necessary to accurately grasp the physical origin of the image reading device and the positional relationship of the document to be loaded, which makes it difficult to improve the accuracy of the reading position and also makes the operation difficult.

For this purpose, there is a known method of specifying a reading area using a mount (hereinafter referred to as a carrier sheet) for mounting a document on an image reading apparatus, as shown in FIG.

)・A conventional carrier sheet will be explained using FIG.

For the carrier sheet 51, use a Mylar sheet or other film with low elasticity and good translucency.
1 is a mark 52 called a register mark that indicates the physical origin of the image reading device when it is attached to the image reading device, a frame 53 that shows the readable range, and a scale that makes the coordinate values easy to read. 54 is printed, and furthermore, a register pinhole 55 is provided for accurately aligning and mounting the carrier sheet 51 on the scanner scanning mechanism of the image reading device. A register pin that matches the register pinhole 55 is attached to the scanner scanning mechanism section of the image reading device to which such a carrier sheet 51 is attached, and when the carrier sheet 51 is attached, the ■ symbol and the physical structure of the image reading device are attached. It is constructed so that the origin of the target coincides exactly.

Normally, various parameters of a document read by an image reading device are as follows.
This can be done by an image parameter processing device that is connected to or built into the image reading device.

This image parameter processing device includes the carrier sheet 5
Input of coordinates that instruct the reading scanning range for multiple input documents pasted on 1, various parameters to control the image reading device according to the type and characteristics of the documents, i.e. presence or absence of similar enlargement/reduction, transformation. A configuration that allows parameters such as the presence or absence of enlargement/reduction, document density level values such as white level, black level, and slice level, edge enhancement, gradation correction, and output scanning line density to be input from the digitizer using a pen stylus. is adopted. Each of these parameters is displayed on a character display and confirmed by the operator.

In this way, the image parameter processing device is designed to allow easy control of the image reading device.

Furthermore, when the image reading device is used for producing newspaper pages, an original document containing a facial photograph is often scanned and inputted into the image parameter processing device. There are more than 0 types of face photo manuscripts that can be used on newspapers, and each type has fixed output dimensions such as ``face size'' and ``margins'', and how many sheets can be printed? Care must be taken to ensure that even if they are lined up and printed on paper, they will not appear out of order.

However, the input documents to be processed have completely different types of noise, and it is necessary to precisely calculate the scanning area from the enlargement/reduction ratio depending on each document.

Problems to be Solved by the Invention However, the above-mentioned scanning area cannot be adjusted by inputting the "face size", "margin", "vertical/horizontal size", etc. according to each type of facial photograph. In the calculation method, it takes time to calculate these coordinate values.

In particular, when inputting a large number of facial photos of candidates in elections, etc., it places a considerable burden on the operator, making it difficult to accurately calculate the scanning area, and reducing the operational efficiency of the device. Deteriorate.

The present invention was made to solve the above problems, and it is possible to prepare the output dimensions according to each type of face photograph in advance, and automatically adjust the scanning area of the input document based on the instruction value input from the digitizer. The purpose is to calculate the

Means for Solving the Problems The present invention provides a registration buffer memory for inputting and storing in advance each output size according to the type of original of a facial photograph, and is placed on the digitizer and pasted on the mount for the original device. The above object is achieved by input information on the coordinate values of two designated points of the input facial photograph document and scanning parameter information of output dimensions selected according to the type of the facial photograph.

Effects With the above-described configuration, the present invention can provide a simple scan area for image reading when inputting a facial photograph original, and at the same time, it is possible to accurately calculate the read scan area.

EXAMPLE Hereinafter, one example of the present invention will be described in detail. First, the configuration of each part related to the present invention will be explained.

FIG. 1 is a block diagram of an image parameter processing device in one embodiment of the present invention.

In Fig. 1, 1 is a digitizer that inputs coordinate values and other data, 2 is a microprocessor unit that controls the entire device, 7 is a microprocessor unit (MPU), and 3 is a microprocessor unit 2 that inputs information from the digitizer 1. 4 is a read/write nonvolatile registration buffer memory that stores the output dimensions according to the type of face photo; 5 is a registration buffer memory 4;
The editing buffer memo 1c6 for temporary storage stored in the same format as
a display controller that controls the display on the screen of 9;
This is a video controller that controls the display timing of 8idcRT9. 10 is a calculation unit that calculates the input scanning area of the face photo original based on the coordinate values of the face photo input from the digitizer 1 and the output dimension values according to the specified type of face photo; 11 is the calculation unit from the calculation unit 10; This is a communication unit that controls the transmission of the determined scanning parameters to an external image reading device, etc.

Note that FIG. 2 shows a face photo parameter setting screen that is displayed on the CRT 9 screen of FIG. 1 and allows the operator to input in advance each output dimension according to the type of document for the face photo.

In FIG. 2, 20 is a CRT display screen section.

21, 22, 23, and 24 are the parameters ``Ko'', ``Aki'', ``Vertical'', and ``Horizontal'' that determine the output dimensions according to the type of face photo, respectively. rDJ, “C” for the face photo output dimensions in the figure, respectively.
, rAJ, 1E3J.

On the other hand, FIG. 3 shows a configuration example of the digitizer unit 1 connected to the serial I/F unit 3 shown in FIG. It consists of a menu key part 33 for inputting scanning parameters, and a carrier sheet part 32 for inputting coordinate values of an input document.

Further, a menu key part 33, a data key input part 34,
It is composed of a parameter key input section 35, a function key input section 36, and a cursor movement key input section 37. It is possible to call up the above-mentioned face photo parameter setting screen, or to input each output size according to the type of face photo. Also, gear 1
The 1-sheet section 32 is an effective coordinate input section of the input document.
By placing the face photo original 38 on top of this and touching the two points of the face photo original, ``head'' and ``chin'',
The input coordinate values of this face photo can be obtained.

The operation of the above configuration will be explained below with reference to the flowcharts shown in FIGS. 5 and 6.

First, the flow of work up to the setting of face photo parameters will be explained with reference to FIG.

(Stcpl) By touching the face photo setting key in the function keys 36 arranged on the menu sheet section 33,
The facial photo parameter setting screen shown in FIG. 2 is called up (FIG. 5 (a)). That is, for each process flow in FIG.
By pressing the function key 36, the face photo setting parameter file is set from the registration buffer memory 4 to the -H editing buffer memo 1J5t [thus, the display buffer memory 7], and the parameters are displayed on CBr4.

(Figure 5 (b)) <5tep2> On this CBr4 screen, for each type of face photo, enter the output dimensions of the face photo's ``cover'', ``open'', ``vertical'', and ``horizontal'' parts using the data keys. Enter using the number keys in 33.

These dimensions are "D", "C", and r in FIG. 4 above.
They correspond to AJ and rBJ, respectively. (Figure 5 (c)
) During this data input operation, the facial photograph parameters are transferred between the editing buffer memory 5 and the display buffer memory 7, which are controlled by the microprocessor 2.

<5tep3> After checking the input parameter data (see Figure 5), by touching the registration key in the function key 36 section, these face photo parameter files are set in the registration bar memory 1. Ru. (
As described above, since the registration buffer "γ memory 4 is composed of a non-volatile memory, its contents can always be retained unless the face photo parameters are changed. In this embodiment, The example shows the types of facial photos displayed on one screen, but if there are many types of facial photos, the parameter setting screen may be displayed across multiple screens. You may also be able to input it using .

Next, the flow of work from the original device to the calculation of the coordinate values of the input scanning area will be explained according to the facial photograph parameters.

(Step> As shown in FIG. 3, the input document 38 containing the facial photograph to be read is placed on the carrier sheet section 32 and fixed so that it does not move.

<5tep2> Item keys (selection keys for face photo type) that are pre-classified in the parameter key 35 section on the menu key 33
Specify the type of face photo by touching the button.

This results in the aforementioned output dimensions rDJ, “C”, rAJ
, rBJ are uniquely determined. Each output dimension value is held in the calculation unit 10 memory.

<5tep3> Bent-touch two points, the "head" and "chin", on the face photo input document shown in Figure 6, and calculate their input coordinate values (XDI, MDI).
) and (XD2, YD2) and input them from the serial I/F unit 3 to the calculation unit 10 in the microprocessor-2.

(Step 4> The input coordinate values (XDl, YDl), (XD2, YD2
) and the designated output size of the face photo type, the calculation unit 10 calculates the input scanning area of the face photo original.

<5tep5) The coordinate values in the X and Y directions obtained from the above are transmitted to the image reading device 12 via the communication I/F unit 11.

Next, an algorithm for determining the input scanning area in the calculation unit 10 will be explained using a flowchart of an off-line diagram.

With <5tcp4>, the coordinate values of the two points of "head" and "chin" (XD
t, YDt), (XD2, YD2) (off diagram (A)) and press, for example, the completion key in the function key 36, the center coordinate values of the face (XD, YD) are respectively set as XD = (I XD2). -XDI 1) / 2Y
It is determined from D = (YD2-YDt)/2. (Off diagram (b), (c), to)) Here,
The origin of the digitizer part 31 is considered to be the upper right corner of the carrier sorting part 32 as a reference point.

Next, the above-mentioned output size rB corresponding to the specified face photo type
J, rDJ is taken out (E)), upper right (
Find the X coordinate XO of R, T) (off diagram (to)), and from
Find the X coordinate X1 of the lower left (BL) (off diagram (g)).

Here, DY refers to the size of the "-head" and "chin" in the Y direction of the input face photo original.

Similarly, the Y coordinate YO of the upper right (R, T) is determined from the specified face photo type (Fig. ),
Find Yl of the Y coordinate of the lower left (BL) (off diagram 0
)).

In this way, by executing the similar enlargement/reduction process by aligning the center of gravity of the face, the coordinate values of the input scanning area in the X and Y directions can be immediately determined (off diagram Q→).

Note that if the slopes of the coordinate values of the two points "face" and "chin" are tilted, that input coordinate value may be discarded and a message may be displayed to inform the operator of this fact.

These input scanning areas are displayed on the screen of the CRT 9 and simultaneously notified to the image reading device through the communication 1/F' unit 10 as described above.

Effects of the Invention As explained above, according to the present invention, the scanning area of the input facial photograph original is determined from the registered facial photograph parameter file based on the designated output dimension value, and the scanning area of the input facial photograph original is determined from the registered facial photograph parameter file. There is no need to accurately calculate the coordinate values that you want to read each time, it is possible to calculate a highly accurate reading area with easy operations, and it is possible to automatically provide a scanning area for simple image reading. It is.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an image parameter processing device according to an embodiment of the present invention, Figs. 1 and 2 are plan views showing face photo parameter setting screens of the device, and Fig. 3 is a digitizer screen showing the main parts of the device. Fig. 4 is a conceptual diagram showing each output dimension parameter of a face photograph by the device, and Fig. 5 is a flowchart of the operation of setting face photo parameters by the device. , FIG. 6 is a conceptual diagram showing the designated coordinates of a face photo input document and its input scanning area coordinates by the same device, the off-line diagram is a flowchart of the operation of calculating the input scan area of a face photo document by the same device, and FIG. 8 is a conventional diagram. FIG. 3 is a plan view of the carrier sheet of FIG. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6
+ JBL(X/,'1
'υ Figure 7

Claims (2)

[Claims] (1) a first input means for inputting in advance an output size corresponding to the type of facial photograph original; a storage means for storing the plurality of types of output dimensions inputted by the first input means; and a reading means. a second input means for inputting the coordinate values of two points of the "top of the head" and "jaw" of the facial photograph document to be scanned;
a third input means for inputting selection information for selecting a unique output size corresponding to the facial photograph document to be read and scanned from among the output sizes stored in the storage means;
The only output dimension stored in the storage means is read based on the selection information inputted from the input means, and the reading and scanning are performed from the output dimension and the coordinate points of the two points inputted to the second input means. 1. An image parameter processing device comprising: arithmetic means for calculating an input scanning area of a face photograph original. (2) The image parameter processing apparatus according to claim 1, wherein the first, second, and third input means are input by the same digitizer.