JPH0896155A - Document creating apparatus and image processing method - Google Patents

Abstract

(57) [Abstract] [Purpose] In addition to "pencil" and "eraser", the purpose is to draw and erase images with the feeling of "ballpoint pen" and "sand eraser". [Structure] When the pen is moved on the screen after setting the writing mode, the control unit 11 determines the current writing mode, and in the case of the "ballpoint pen" mode, sets the ballpoint pen information for each pixel that the pen has passed. , In the "pencil" mode, set the pencil information. When the pen is moved on the screen after setting the erase mode, the control unit 11 determines the current erase mode, and in the "eraser" mode, clears the pencil information for each pixel that the pen has passed, In the case of the "sand eraser" mode, the ballpoint pen information and the pencil information are cleared.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document creating device such as a Japanese word processor, and more particularly to a document creating device having an image creating function and an image processing method.

[0002]

2. Description of the Related Art Conventionally, some document creating apparatuses such as Japanese word processors have an image creating function.
This is a function of drawing an image directly on the document screen using a pointing device such as a pen. With this function, it is possible to add an illustration or the like to the created document, or to input a handwritten character to add a simple memo or the like.

In addition, this type of image creating function usually has an erasing function, and an image drawn on the screen can be erased along the movement locus of a pointing device such as a pen.

[0004]

By the way, in the conventional image creating function, drawing and erasing of an image are in other words a relation between "pencil" and "eraser", and an image drawn by "pencil" is called "eraser". It means to erase with. Therefore, when erasing an image, an image that was not scheduled to be erased with the "eraser" may be erased.

Further, conventionally, there is no security function for prohibiting image erasing. For this reason, there has been a problem that an image such as an important memo or a signature is erased by an erroneous operation, or another person arbitrarily erases it.

The present invention has been made in view of the above points, and in addition to "pencil" and "eraser", "ballpoint pen".
It is an object of the present invention to provide a document creation device and an image processing method capable of drawing and erasing an image with a feeling of "sand eraser". Another object of the present invention is to provide a document creation apparatus and an image processing method that can prohibit the deletion of images as needed.

[0007]

[Means for Solving the Problems]

(1) The document creating apparatus according to the present invention includes a designating unit for designating a position on the screen, a writing mode setting unit for setting the first or second writing mode, and the writing mode setting unit for setting the first writing mode. When the writing mode of is set,
The first image information having an attribute that is easy to erase is drawn on the screen along the movement locus of the designating means, and the second image having an attribute that is difficult to erase when the second writing mode is set. Drawing means for drawing the image information of the image information on the screen along the movement trajectory of the specifying means, and an erase mode setting means for setting the first or second erase mode,
When the first erasing mode is set by the erasing mode setting means, only the first image information is erased from the screen, and when the second erasing mode is set, the first image information is erased. And an erasing unit for erasing the first and second image information from the screen.

(2) The document creating apparatus of the present invention comprises a designating means for designating a position on the screen, a drawing means for drawing image information on the screen along the movement trajectory of the designating means, and a password. Only when the password input means for inputting information and the password information input by the password input means match preset password information, the image information is moved along the movement trajectory of the designating means. And an erasing means for erasing from the screen.

[0009]

According to the above configuration (1), the first image information having the attribute easy to erase or the second image information having the attribute hard to erase can be drawn on the screen by the mode setting. In this case, the first image information can be erased in the first or second erase mode, and the second image information can be erased only in the second erase mode. With configuration (2) above, setting the password information makes it possible to prohibit the deletion of the image information.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a document creating apparatus having an image creating function. This device is provided with a control unit 1
1, a key input unit 12, a pen input unit 13, a display unit 14, and a storage unit 15.

The control unit 11 is composed of a microprocessor and controls the entire apparatus. In addition to the document creating process, the control unit 11 has an image drawing processing unit 11a, an image erasing processing unit 11b, and a security processing unit 11c. Then, various image processing is executed. Image drawing processing unit 11a
Performs image drawing processing according to the writing mode of "pencil" or "ballpoint pen". Image erasing processor 11b
Performs the image erasing process according to the erasing mode of "eraser" or "sand eraser". Security processing unit 1
1c performs an image erasure prohibition process using a password.

The key input section 12 comprises a keyboard,
Enter data and give instructions. The pen input unit 13 is composed of a coordinate input device (tablet) and uses a dedicated pen to specify a position on the screen. The display unit 14 is an LCD (Liquid
It consists of a display device such as Crystal Display) and displays data.

The storage unit 15 is composed of a RAM and stores various kinds of information necessary for this apparatus. Here, the document information storage unit 15a, the image information storage unit 15b, the mode information storage unit 15c, and the password information storage unit 15d. Have. The document information storage unit 15a stores document information. The image information storage unit 15b stores image information associated with the document information. The mode information storage unit 15c stores various mode information such as a writing mode and an erasing mode set at the time of image processing. The password information storage unit 15d stores password information for prohibiting deletion of image information.

FIG. 2 is a diagram showing the structure of image information in the embodiment. The image information is composed of a plurality of bits of element data per pixel. When the image information is drawn on the screen in the "pencil" mode, the pencil information is set as element data for the target pixel. When the image information is drawn on the screen in the "ballpoint pen" mode, the ballpoint pen information is set as element data for the target pixel.

FIG. 3 is a view showing various mode setting screens in the embodiment. FIG. 10A shows a writing mode setting screen. In addition to selecting the pen tip of “large”, “medium”, and “small” as the writing mode, here, the pen type is “pencil” mode or “ballpoint pen”. It is designed to select a mode. By selecting the "pencil" mode, it is possible to create image information of pencil writing. When the "ballpoint pen" mode is selected, it is possible to create image information of ballpoint pen writing.

FIG. 2B shows an erase mode setting screen.
The "eraser" mode or the "sand eraser" mode is selected as the erase mode. "eraser"
When you select a mode, you can erase the pencil image information. If you select the "sand eraser" mode,
Both pencil and ballpoint pen image information can be erased.

FIG. 1C shows a security mode setting screen, in which password information for a predetermined number of characters is input. This password information is used when prohibiting deletion of image information.

Next, the operation of the embodiment will be described. Here, the image information processing will be described separately for each operation of (a) image drawing processing, (b) image erasing processing, and (c) security processing.

(A) Image drawing process FIG. 4 is a flow chart showing the operation of the image drawing process in the embodiment. When drawing the image information on the document screen, first, the writing mode (pen tip and pen type) is selected on the writing mode setting screen shown in FIG. The mode information selected at this time is stored in the mode information storage unit 15c of the storage unit 15. here,
When the pen is moved on the document screen, the control unit 11 executes the following image drawing processing through the image drawing processing unit 11a.

That is, the control section 11 judges whether the current writing mode is the "ballpoint pen" mode or the "pencil" mode based on the mode information stored in the mode information storage section 15c (step A11). . In the "ballpoint pen" mode (Yes in step A11), the control unit 11 sets ballpoint pen information for each pixel passed by the pen (step A12). As a result, image information having an attribute that is difficult to erase is drawn on the document screen.

In the "pencil" mode (No in step A11), the controller 11 sets pencil information for each pixel passed by the pen (step A13). As a result, the image information having an attribute that can be easily erased is drawn on the document screen.

In this way, the image information is drawn (blackened) on the portion traced with the pen. At this time, by changing the attribute attached to the image information, both the pencil writing function and the ballpoint pen writing function are performed. Can be realized.

(B) Image erasing process FIG. 5 is a flow chart showing the operation of the image erasing process in this embodiment. When erasing the image information drawn on the document screen, the erasing mode is selected on the erasing mode setting screen shown in FIG. 3B. The mode information selected at this time is stored in the mode information storage unit 1 of the storage unit 15.
5c. Here, when the pen is moved on the document screen, the control unit 11 executes the following image erasing process through the image erasing processing unit 11b.

That is, the control unit 11 judges whether the current erasing mode is the "eraser" mode or the "sand eraser" mode based on the mode information stored in the mode information storage unit 15c (step B11). ). In the "eraser" mode (Yes in step B11), the control unit 11 clears the pencil information for each pixel passed by the pen (step B12). As a result, the image information that is easy to erase is erased from the document screen.

In the case of the "sand eraser" mode (No in step B11), the controller 11 clears the ballpoint pen information and the pencil information for each pixel passed by the pen (steps B12 and B13). As a result, both the image information that is easy to erase and the image information that is difficult to erase are erased from the document screen.

As described above, the image information traced with the pen is erased (whitened). At this time, the image information having the pencil attribute can be erased with the "eraser", while the image information having the ballpoint pen attribute can be erased. By not erasing it, it is possible to protect important image information and improve the handwriting feeling.

The document creation apparatus has a partial deletion function for partially deleting the writing within the specified range and a full-text deletion function for collectively deleting the entire document. This deletion function also erases the image information. May be performed. In this case, both ballpoint pen information and pencil information are cleared by the same function.

(C) Security Process FIG. 6 is a flow chart showing the operation of the security process in this embodiment. For example, when an important memo or signature is input as an image, if the deletion of the image information is prohibited, password information for a predetermined number of characters is input in the security mode setting screen shown in FIG. The password information input at this time is stored in the password information storage unit 15d of the storage unit 15. Here, when the image information erasing operation is performed, the control unit 11 executes the following security processing through the security processing unit 11c.

That is, as described in the image erasing process of (b) above, when the "sand eraser" mode is set as the erasing mode and the pen is operated to specify the erasing range (step C1), the control section 11 It is checked whether or not there is a pixel for which ballpoint pen information is set within the designated range (step C2).

As a result, when the ball-point pen information exists (Yes in step C2), the control unit 11 requests input of password information (step C3), and stores the password information input at that time and the password information storage unit 15d. Compare with the password information provided (step C
4). If both password information match (step C
4), the controller 11 clears the ballpoint pen information (step C5).

On the other hand, when the password information of both does not match (No in step C4), the control unit 11 does not clear the ballpoint pen information, but only the pencil information (step C6).

In this way, considering that the ballpoint pen is generally used for describing important items such as a signature, when the pixel for which the ballpoint pen information is set is designated to be erased, it cannot be erased without inputting the password information. By doing so, it is possible to prevent accidental erasure by an erroneous operation and erasure by others.

[0033]

As described above, according to the present invention, a "pencil" is used.
In addition to "Eraser", you can draw and erase images with the feeling of "ballpoint pen" and "sand eraser". Therefore, it is possible to realize an image creating operation that further pursues the feeling of handwriting.

Further, according to the present invention, by setting the password information, the deletion of the image information can be prohibited. Therefore, you may erase important memos, signatures, and other images by mistake, or
It is possible to prevent others from erasing them without permission.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a document creation device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a structure of image information in the embodiment.

3A and 3B are diagrams showing various mode setting screens in the embodiment, in which FIG. 3A is a writing mode setting screen, and FIG.
Is a deletion mode setting screen, and FIG. 7C is a security mode setting screen.

FIG. 4 is a flowchart showing the operation of an image drawing process in the embodiment.

FIG. 5 is a flowchart showing the operation of image erasing processing in the embodiment.

FIG. 6 is a flowchart showing an operation of security processing in the embodiment.

[Explanation of symbols]

11 ... Control unit, 11a ... Image drawing processing unit, 11b ...
Image deletion processing unit, 11c ... Security processing unit, 1
2 ... key input unit, 13 ... pen input unit, 14 ... display unit, 1
5 ... Storage unit, 15a ... Document information storage unit, 15b ... Image information storage unit, 15c ... Mode information storage unit, 15d ... Password information storage unit.

Claims (4)

[Claims] 1. A designation means for designating a position on a screen, a writing mode setting means for setting a first or second writing mode, and the writing mode setting means for setting the first writing mode. If it does, the first has an attribute that is easy to erase.
Image information is drawn on the screen along the movement trajectory of the designating means, and when the second writing mode is set, the second image information having an attribute that is difficult to delete is designated by the designating means. Drawing means for drawing on the screen along the movement track, erasing mode setting means for setting the first or second erasing mode, and when the erasing mode setting means sets the first erasing mode. Means for erasing only the first image information from the screen and erasing the first and second image information from the screen when the second erasing mode is set. A document creation apparatus comprising: 2. A designation means for designating a position on the screen, a drawing means for rendering the image information on the screen along a movement locus of the designation means, and a password input means for inputting password information. And an erasing means for erasing the image information from the screen along the movement track of the designating means only when the password information input by the password input means matches the preset password information. A document creation device characterized by being provided. 3. An image processing method for a document creating apparatus having a designation means for designating a position on a screen, wherein a first or second writing mode is set, and the first writing mode is set. In this case, the first image information having an attribute that is easy to erase is drawn on the screen along the movement trajectory of the designating means, and when the second writing mode is set, the attribute that is difficult to erase Is drawn on the screen along the movement locus of the designating means, the first or second erasing mode is set, and when the first erasing mode is set, Only the first image information is erased from the screen, and when the second erase mode is set, the first and second image information are erased from the screen. Characteristic image Di-processing method. 4. An image processing method for a document creating apparatus comprising a designating unit for designating a position on a screen, wherein image information is drawn on the screen along a movement locus of the designating unit, and password information is displayed. The image processing method, characterized in that the image information is erased from the screen along the movement trajectory of the designating means only when the password information is input and the password information is set in advance. .