JPH06236441A - Image processor - Google Patents

Abstract

PURPOSE:To produce an excellent void leading line having the uniform width of an outline and also to freely change the shape of a triangular part and the angle of an oblique line. CONSTITUTION:This processor is provided with a contour point generating part 5 which calculates a double bag-shaped contour coordinate string to produce a void leading line based on the coordinate values of the start, middle and end points stored in a start/middle/end point storing part 2, a contour point storing part 3 which stores the contour coordinate string calculated by the part 5, and a polygon area-filling part 6 which reads the contour coordinate string stored in the part 3 and connects between the contour points by a straight line to develop two bag-shaped leading line outline images in an image storing part 4, thereafter detects two picture elements of value '1' while scanning the raster in the main scanning direction in order to fill an area with the picture elements defined as 1 and then draws a white-on-black leading line by filling the areas of two bag-shaped leading line outline images.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus, and more particularly to an image processing apparatus capable of performing a layout in which sentences, photographs and figures are mixed, and setting and outputting a lead-in line.

[0002]

2. Description of the Related Art FIG. 8 is a block diagram showing an example of a conventional image processing apparatus, FIG. 9 is an explanatory view showing a drop line in an image processing apparatus, and FIG. 10 shows position information when setting a drop line in the example of FIG. FIG. 11 is a first explanatory view showing a state in which a drop line is made thick in the example of FIG. 8, and FIG. 12 is a state in which a drop line is made thick in the example of FIG. A second explanatory view, FIG. 13 is a first explanatory view showing a method of forming a triangular portion at the tip of the service wire in the embodiment of FIG. 8, and FIG. 14 is a diagram showing a triangular portion at the tip of the service wire in the embodiment of FIG. Second explanatory view showing the forming method, FIG.
FIG. 5 is an explanatory diagram showing a method of forming a leading line for each element in the embodiment of FIG. 8, and FIG. 16 is an explanatory diagram showing a method of forming a white leading line by logical calculation of an image in the embodiment of FIG.

In a conventional image processing apparatus for performing a layout in which sentences, photographs and figures are mixed and finally outputting the result as a printed matter, after the photographs and figures are read by a scanner and taken in the apparatus, the apparatus is used. Some of them are output in combination with the text data created within.

Such an image processing apparatus has a function of creating a so-called service line for indicating an arbitrary portion inside a photograph or a figure (image) with an arrow and adding a description thereto. This function is generally used to generate a straight line over an image, attach an arrow to the tip of the straight line on the image side, and write a description at the opposite end that is not related to the straight line image. is there. For example, as shown in FIG. 9, a photograph 21 is laid out on a page area 20 serving as a background, and in order to explain each part of the photograph 21, a lead-in line 22 and a description 23 are created and added.

An example of a conventional image processing apparatus capable of creating such a service line will be described with reference to FIGS.

When the service line is created, a straight line is digitally recorded on the image storage unit 14 by an algorithm called digital differential analysis (DDA: a coordinate component of a straight line or a circular arc is generated only by repeating integer operations). A method of drawing as an image is generally adopted. For example, as shown in FIG.
When the control unit 19 recognizes that the coordinate data of 0, the middle point 31 and the end point 32 is input from the input unit 11, the control unit 19 stores them in the start point / middle point / end point storage unit 12. Next, when the control unit 19 issues a processing request to the straight line generation unit 13, the straight line generation unit 13 outputs the coordinate data of the start point 30, the middle point 31, and the end point 32 from the start point / middle point / end point storage unit 12. As shown in FIG. 10, the start point 30 and the midpoint 31 and the midpoint 31 and the end point 32 are connected by straight lines 33 and 34, respectively, as shown in FIG. At this time, the straight line 33
The continuous coordinate data of 34 and 34 are generated by the DDA method.

The straight line generation unit 13 transfers the coordinate data of the straight lines 33 and 34 to the perpendicular line generation unit 15. Vertical line generator 1
5 receives the coordinate data of the straight lines 33 and 34, passes through the points on the straight lines 33 and 34, and then the straight line 33 or 34.
A straight line of constant length perpendicular to is generated on both sides of the lines 33 and 34. By this processing in the perpendicular line generation unit 15, the straight lines 33 and 34 are converted into straight lines having a constant thickness.

For example, as shown in FIG. 11, at the midpoint 31, straight lines 35 having a constant length perpendicular to the straight line 33 connecting the starting point 30 and the midpoint 31 are generated on both sides of the straight line 33. This process is performed by a straight line 33 from the midpoint 31 to the start point 30.
When each coordinate is performed, a straight line 40 having a constant thickness as shown in FIG. 12 can be created.

Further, as shown in FIG. 13, the length of a straight line perpendicular to a straight line 33 connecting the starting point 30 and the midpoint 31 is
As shown by the straight line 50 and the straight line 51, the triangular portion 52 as shown in FIG. 14 can be created by decreasing from the midpoint 31 toward the starting point 30 at a constant rate and setting it to 0 at the starting point 30.

By combining the processes in the perpendicular line generating unit 15 as described above, as shown in FIG.
It is possible to create a drop line in which a triangular portion 60 and a straight line 61 and a straight line 62 are drawn between three points of 0 and the middle point 31 and the end point 32.

The service line created in this way is expanded to a specified position on the image drawing unit 16 and the image storage unit 1
4 and the sentences, pictures and figures drawn directly from the input unit 11 in the image storage unit 14 are output to the display unit 17 and the printing unit 18 in response to a processing request from the control unit 19.

As shown by a lead-in line 24 in FIG. 9, when a white lead-in line is required, the conventional image processing apparatus does not have a function of directly drawing such a white lead-in line. Therefore, as shown in FIG. 16, after the service line 70 having a large shape is created and drawn in the image storage unit 14, the service line 71 having a smaller size than the service line 70 is drawn.
Is drawn, and the lead-in wire 71 is drawn in the lead-in wire 70 so that the width D becomes substantially constant. By setting the write mode of the lead-in line 71 at this time to a mode in which it is synthesized by the logical calculation of the exclusive OR (EXOR), the white lead-in line 7
3 is created.

[0013]

As described above, the conventional image processing apparatus does not have a function of directly drawing a white lead-in line when a white lead-in line is required. Create two similar drop lines and check them so that the width between them is almost constant.
It has a drawback that it must be synthesized by the logical calculation of XOR.

Further, since the resolution of the display unit is generally lower than the resolution of the printing unit, even if the alignment is performed so that the widths of the two service lines are substantially constant on the screen of the display unit, the output of the printing unit is output. The width is often non-uniform on the printed matter. Therefore, the conventional image processing apparatus has a drawback in that the same work must be repeatedly performed and the setting work must be performed so that the width becomes uniform.

Further, when drawing a white lead-in line, DD
The service line is created by the method A, but in a normal image processing apparatus, several types of reference line segment patterns and triangular patterns are prepared, and one of them is selected to create the service line. Therefore, there is also a drawback that it is not possible to draw a drop line having a free shape.

[0016]

An image processing apparatus according to the present invention includes an input section for indicating a developed position of an image such as a text, a photograph, a figure, or a lead-in line, an image storage section for storing the image, and the image storage. A display unit for displaying the image drawn in the unit, a printing unit for printing the image drawn in the image storage unit, a starting point, a middle point, and an ending point of the expansion position of the service line instructed from the input unit. A double point for creating a white lead-in line from the start point / middle point / end point storage section for storing the coordinate values of and the coordinate values of the start point, the middle point and the end point stored in the start point / middle point / end point storage section. A contour point generation unit for calculating a bag-shaped contour coordinate sequence, a contour point storage unit for storing the double bag-shaped contour coordinate sequence calculated by the contour point generation unit, and a contour point storage unit. The double bag-shaped contour coordinate sequence is read out, the contour points are connected by a straight line, and two bag-shaped lead-in outline images are developed in the image storage unit, and then the value is 1 while raster-scanning in the main scanning direction. A polygonal-filled portion that draws a white lead-in line that fills the inside of the two bag-shaped lead-in outline images by performing two-pixel fill-in by detecting two pixels, and the start point / middle point .A control unit that stores data in the end point storage unit, issues a processing request to the contour point generation unit and the polygon filling unit, and controls output processing operations to the display unit and the printing unit Is.

[0017]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is an explanatory view showing position information when setting a service line in the embodiment of FIG. 1, and FIG. 3 is a view of the service line in the embodiment of FIG. FIG. 4 is an explanatory diagram showing information on the basic shape of the triangular portion at the tip, FIG. 4 is a first explanatory diagram showing a method of calculating the contour points of the triangular portion at the tip of the service line in the embodiment of FIG. 1, and FIG. 2 is an explanatory view showing a method of calculating contour points of a triangular portion at the tip of a drop line in the embodiment of FIG. 6, and FIG. 6 is an explanation showing a method of calculating contour points at the midpoint and the end of the drop line in the embodiment of FIG. FIG. 7 and FIG. 7 are explanatory views showing a filling method in the embodiment of FIG.

In FIG. 1, an input unit 1 is a device such as a keyboard, a scanner, a mouse or the like for instructing a development position of an image such as a sentence or a photograph or a figure. Start point / Middle point /
The end point storage unit 2 stores the coordinate data of the starting point, the middle point, and the end point of the expansion position of the service line input as the setting position information of the service line from the input unit 1. The contour point generation unit 5 is a device for calculating a line that is the contour of the service line, and creates a white service line from the coordinate data of the start point, middle point, and end point stored in the start point / middle point / end point storage unit 2. For 2
Calculate the double sack-shaped contour coordinate sequence (outline coordinates of the white lead-in line). The contour point storage unit 3 stores the double bag-shaped contour coordinate sequence (outline coordinates of the white lead-in line) calculated by the contour point generation unit 5. The polygon filling unit 6 reads out the double bag-shaped contour coordinate sequence (outline coordinates of the white lead-in line) stored in the contour point storage unit 3 and connects each contour point with a straight line to form two bag-shaped contours. After the outline image is developed in the image storage unit 4, two pixels having a value of 1 are detected while raster-scanning in the main scanning direction so that the pixels between the two are filled in to form two bag-like incoming lines. Draw a white lead-in line that fills the inside of the outline image. The image storage unit 4 develops, as image information, an output image of a text, a photograph, or a graphic whose expansion position is designated by the input unit 1 and an outline lead-in line drawn by the polygon filling unit 6. The display unit 7 outputs and displays the image information expanded in the image storage unit 4. The printing unit 8 outputs and prints the image information expanded in the image storage unit 4. The control unit 10 stores data in the start point / middle point / end point storage unit 2, issues a processing request to the contour point generation unit 5 and the polygon filling unit 6, and performs an output processing operation to the display unit 7 and the printing unit 8. And control.

When the service line setting function is activated in the image processing apparatus configured as described above, the operator inputs the service line setting position from the input unit 1. Control unit 10
Receives this input data, stores the coordinate values of the start point, the middle point, and the end point in the start point / middle point / end point storage unit 2, and issues a processing request to the contour point generation unit 5.

Upon receiving the processing request from the control unit 10, the contour point generation unit 5 reads the coordinate data of the start point, the middle point and the end point of the service line to be set from the start point / middle point / end point storage unit 2. The contour point generation unit 5 has information on the basic shape of the arrow to be generated inside, and from the basic shape information of this arrow and the coordinate data of the start point of the service line, the arrow part of the service line (triangular part) The contour points of are calculated. The contour point generation unit 5 also calculates the contour point of the lead line portion (straight line portion) of the white lead-in line from the coordinate data of the start point, the middle point, and the end point of the lead line. As a result, two bag-shaped lead-in line outlines that form the white lead-in line are required. The contour point generation unit 5 temporarily stores this in the contour point storage unit 3.

When the outline data of the white lead-in line is completely stored in the contour point storage unit 3, the contour point generation unit 5 notifies the control unit 10 of the end of the processing, and the control unit 10 which has received this notification, A processing request is issued to the polygon filling unit 6.

The polygon filling unit 6 reads out outline data of the white lead-in lines stored in the contour point storage unit 3 and connects the contour points with a straight line by the DDA method. At this time, first, the outline of the outside service wire is displayed in the image storage unit 4.
To the image storage unit 4
Expand to. When the outline data of the white lead-in line is drawn, the polygon filling unit 6 performs a raster scan on the image storage unit 4 as the next process, and every time it detects two pixels having the value 1, the pixels between them are detected. The filling process is performed by changing the value of 1 to 1. As a result, a white lead-in line is created by filling the space between the outer contour line and the inner contour line. The polygon filling unit 6 stores this in the image storage unit 4 and notifies the control unit 10 of the end of processing.

When the operator issues an output request, the control unit 10 which has received the notification of the end of processing from the polygonal filling unit 6 detects that the text or photograph or figure developed in the image storage unit 4 and the white lead-in line. The mixed image information,
Output to the display unit 7 or the printing unit 8.

Next, the details of the above-mentioned operation of creating the white lead-in wire will be described with reference to FIGS.

When the coordinates of the start point, the middle point and the end point of the service line are input from the input section 1, such information is stored in the start point / middle point / end point storage section 2. The coordinate data stored in the start point / middle point / end point storage unit 2 are the X coordinate and Y coordinate of the start point 30, the middle point 31, and the end point 32, as shown in FIG. These are expressed as follows.

Starting point 30 = (X0, Y0) Middle point 31 = (X1, Y1) End point 32 = (X2, Y2) At this time, a diagonal line from the coordinate values of the starting point 30 and the middle point 31 to a horizontal line (X axis) 64. The inclination angle α of the portion 65 is calculated by the following equation.

[0028]

In this image processing apparatus, as one function of the control unit 10, a function for setting print initial information as a system is prepared, and the control unit 10 wants the contour point generation unit 5 to create by this function. Information about the basic shape of the arrow at the tip of the service wire is stored. The basic shape information of this arrow is, as shown in FIG.
And an arrow width 67 that is the width of the portion outside the line width 66 of the arrow portion (triangular portion), an arrow length 68 that is the length of the arrow portion (triangular portion), and the outline of the white lead-in line. And the contour line width 69 that is the thickness of the. These are parameters that can be changed to arbitrary values by setting the print initial information by the operator.

Here, the contour point generation unit 5 is configured by the contour point storage unit 3
The coordinate data of the start point 30, the middle point 31, and the end point 32 are read from and the coordinate values of the points forming the outer and inner contours of the white lead-in line are calculated. As preprocessing at this time, as shown in FIG.
As shown in, each point Q ₀ · Q ₁ · Q ₂ · Q ₇ · Q ₈ · R ₀ · R ₁ · R ₂ · R forming the arrow part (triangular part)
Calculate the coordinate value of ₇ · R ₈ first. When the white lead-in line is vertically symmetrical (α = 0) about the origin with respect to the origin, the coordinates of the points Q ₀ · Q ₁ · Q ₂ · Q ₇ · Q ₈ are as follows.

Q ₀ = (Q0X, Q0Y) = (0,0) Q ₁ = (Q1X, Q1Y) = (arrow length 68, line width 66
/ 2 + Arrow width _{67) Q 2 = (Q2X,} Q2Y) = ( arrow lengths 68, line width 66
_{/ 2) Q 7 = (Q7X} , Q7Y) = ( arrow lengths 68, - line width 6
_{6/2) Q 8 = (Q8X,} Q8Y) = ( arrow lengths 68, - (line width 66/2 + Arrow width 67) by) this calculation, to form an outer contour line of the arrow portion (triangular section) The coordinate value of each point can be calculated.

Then, from the coordinate values of these points, the coordinate values of the points forming the inner contour line of the arrow portion (triangular portion) are calculated. If the angle of the tip of the arrow part (triangular part) is β,

[0033]

Further, the angle γ is defined as follows.

Γ = (90 ° -β) / 2 From these angles β and γ and the contour line width 69, the point R ₀ · R
The coordinate values of ₁ · R ₂ · R ₇ · R ₈ can be calculated as follows.

[0036]

The calculation of the coordinate values of 10 points forming such an arrow portion (triangular portion) is performed only once at the start of processing in the image processing apparatus, and the result is stored in the contour point storage unit 3. I'll do it.

When converting this into the coordinate value at the position of the starting point 30 designated by the operator, as shown in FIG. 5, the original coordinate position 80 is rotated by the angle α by the rotational affine transformation to obtain the rotated coordinate position 81. , And the position of the tip is moved in parallel from the origin O to the starting point (X0, Y0) 30 to form a moving coordinate position 82.

Midpoint (X1, Y1) 31 and end point (X
2, Y2) each point 32 about contour Q ₃ · Q ₄ · Q ₅
- coordinate values of Q _6, as shown in FIG. 6, it is calculated by the following equation.

[0040]

Also, the inner points R ₃ , R ₄ , R ₅ , R ₆
The coordinate value of is calculated as follows.

First, the coordinates of the inner end point 92 obtained by moving the contour line width 69 from the end point (X2, Y2) 32 to the left side of the X axis are obtained.

Inner end point 92 = (X2-contour line width 69 × flag, Y2) Further, as the inner line width 91, a value obtained by subtracting twice the contour line width 69 from the original line width 66 is obtained.

The inner line width 91 = (line width 66-contour line width 69 × 2) midpoint (X1, Y1) 31, and ₄ · Q ₅ · point Q ₃ · Q with an inner end point 92 and the inner line width 91 If the same calculation as when obtaining the coordinate value of Q ₆ is performed, the points R ₃ · R ₄ · R ₅ ·
The coordinate value of R ₆ can be obtained. These coordinate values are also stored in the contour point storage unit 3.

The polygon filling section 6 reads the coordinates of the outline points (outline coordinates of the white lead-in line) stored in the outline point storage section 3 as described above, and as shown in FIG. A contour image of a bag-shaped outline figure, which is connected to the line 96 by a straight line by the DDA method, is created and drawn in the image storage unit 4. Since the work at this time is only the outline part of the service line, the amount of calculation is smaller than that of the filling work in the normal service line. Next, the polygon filling unit 6 scans the outline image of the white lead-in line drawn in the image storage unit 4 by the raster scan 97, and every time it detects two pixels having the value 1, the pixel values between them are set. By changing to 1, the filling process is performed.
As a result, the lead-in wire having an outline inside is developed on the image storage unit 4.

According to this method, even if the direction of the service line and the angle of the polygonal line are different, the service line is created by calculation from the coordinate values of the three points given each time, so the shape of the arrow part (triangular part) is formed. It is possible to freely change the angle of the diagonal line and the width of the contour line.

The image processing apparatus can also create a contour figure such as a circle or an ellipse in addition to creating the service line as described above.

[0048]

As described above, the image processing apparatus according to the present invention is a double-use system for creating a white lead-in line from the coordinate values of the starting point, the middle point, and the ending point stored in the starting point / midpoint / ending point storage section. A contour point generation unit that calculates a bag-shaped contour coordinate sequence of
A contour point storage unit that stores the double bag-shaped contour coordinate sequence calculated by the contour point generation unit, and a double bag-shaped contour coordinate sequence that is stored in the contour point storage unit are read, and a straight line is drawn between each contour point. After connecting two bag-shaped drop-out line outline images to the image storage unit, two pixels with a value of 1 are detected while raster-scanning in the main scanning direction to detect pixels between them by 1
By providing a polygonal fill part that draws a white outline that fills the inside of the two bag-shaped outlines of the outline with Can be created, and also the shape of the triangular portion and the angle of the diagonal line can be freely changed.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing position information when setting a service line in the embodiment of FIG.

FIG. 3 is an explanatory diagram showing information regarding a basic shape of a triangular portion at the tip of the service wire in the embodiment of FIG.

FIG. 4 is a first explanatory diagram showing a method of calculating a contour point of a triangular portion at the tip of the service wire in the embodiment of FIG. 1;

5 is a second explanatory diagram showing a method of calculating contour points of a triangular portion at the tip of the service wire in the embodiment of FIG. 1. FIG.

FIG. 6 is an explanatory diagram showing a method of calculating contour points at a midpoint and an end point of a drop line in the embodiment of FIG.

FIG. 7 is an explanatory diagram showing a filling method in the embodiment of FIG.

FIG. 8 is a block diagram showing an example of a conventional image processing apparatus.

FIG. 9 is an explanatory diagram showing service lines in the image processing apparatus.

10 is an explanatory diagram showing position information when setting a service line in the example of FIG. 8. FIG.

11 is a first explanatory diagram showing a state in which a thickness is generated in the service wire in the example of FIG. 8. FIG.

FIG. 12 is a second explanatory diagram showing a state when the lead wire is made thick in the example of FIG. 8; 0

13 is a first explanatory diagram showing a method of forming a triangular portion at the tip of the service wire in the embodiment of FIG. 8. FIG.

FIG. 14 is a second explanatory view showing the method of forming the triangular portion at the tip of the service wire in the embodiment of FIG.

FIG. 15 is an explanatory diagram showing a method of forming a lead wire for each element in the embodiment of FIG.

16 is an explanatory diagram showing a method of forming a white lead-in line by logical calculation of an image in the embodiment of FIG.

[Explanation of symbols]

1/11 Input section 2/12 Start point / middle point / end point storage section 3 Contour point storage section 4 14 Image storage section 5 Contour point generation section 6 Polygonal fill section 7/17 Display section 8/18 Printing section 10/19 Control Part 13 Straight line generating part 15 Perpendicular generating part 16 Image drawing part 20 Page area 21 Photograph 22.24.70.71 Service line 23 Explanatory text 30 Starting point 31 Midpoint 32 Ending point 33.34.35.40.50.51.61. 62
Straight line 52/60 Triangular part 64 Horizontal line (X axis) 65 Diagonal part 66 Line width 67 Arrow width 68 Arrow length 69 Contour line width 73 White lead-in line 80 Original coordinate position 81 Rotation coordinate position 82 Moving coordinate position 91 Inner line width 92 Inner end point 95/96 Contour line 97 Raster scan

Claims (2)

[Claims] 1. An input unit for indicating a developed position of an image such as a text, a photograph, a figure, or a service line, an image storage unit for storing the image, a starting point of the developed position of the service line instructed by the input unit, and To create a white lead-in line from the start point / middle point / end point storage section that stores the coordinate values of the middle point and the end point, and the coordinate values of the start point, middle point, and the end point stored in the start point / middle point / end point storage section Of 2
A contour point generation unit for calculating a double bag-shaped contour coordinate sequence, a contour point storage unit for storing the double bag-shaped contour coordinate sequence calculated by the contour point generation unit, and a contour point storage unit for storing the contour point storage unit. The double bag-shaped outline coordinate sequence is read out, the outline points are connected by a straight line, and two bag-like drop line outline images are developed in the image storage unit, and then the values are raster-scanned in the main scanning direction. A polygonal filling portion that draws a white lead-in line that fills the inside of the two bag-shaped lead-in outline images by detecting two 1-pixels and setting the pixels between them as 1. An image processing apparatus comprising: a control unit that stores data in a midpoint / endpoint storage unit and issues a processing request to the contour point generation unit and the polygon filling unit. 2. An input unit for indicating a developed position of an image such as a text, a photograph, a figure, a service line, an image storage unit for storing the image, and a display unit for displaying the image drawn in the image storage unit. A printing unit for printing the image drawn in the image storage unit; a starting point, a middle point, and an end point for storing the coordinate values of the starting point, the middle point, and the ending point of the unfolding position of the service line designated by the input section; A storage unit and a contour point generation unit that calculates a double bag-shaped contour coordinate sequence for creating a white lead-in line from the coordinate values of the start point, the middle point, and the end point stored in the start point / middle point / end point storage unit. And a contour point storage unit that stores the double bag-shaped contour coordinate sequence calculated by the contour point generation unit, and the double bag-shaped contour coordinate sequence stored in the contour point storage unit. Each contour After connecting two points with a straight line and developing two bag-like lead-in outline images in the image storage unit, two pixels with a value of 1 are detected while raster-scanning in the main scanning direction. A polygonal fill part that draws a white drop line that fills the inside of the two bag-shaped drop line outline images by filling, storing data in the start point / middle point / end point storage part and generating the contour point And a control unit that issues a processing request to the polygonal filling unit and controls output processing operations to the display unit and the printing unit.