JPS61206083A - Preparing device for picture data - Google Patents

Abstract

PURPOSE:To execute easily the tracing in case the next pattern is displayed by displaying the picture of an original picture and the picture of a brief line drawing on the same screen of a picture receiving tube and overlapping and displaying the picture of the brief line drawing to the picture of the original picture. CONSTITUTION:An original picture is photographed by a color video camera 11, a composite video signal is taken out, the signal is supplied to a converter 12, and converted to three primary colors R0-B0 of red, green and blue. The signal is supplied to a field memory 14, and one field part out of it is written in the memory 14. The digital signal written in the memory 14 is read, converted to the original analog signal by a D/A converter 15, and supplied through a switch circuit 21, etc., to a color image receiving tube. At a preparing circuit 30, by the operation of the tablet, mouse, etc., the video signal of a brief line drawing is formed, a mixing signal is supplied through adder circuits 22R-22B to the image receiving tube, and therefore, on the screen, the picture of the original picture and the picture of the brief line drawing are mixed and displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for creating videotex image data.

[Summary of the invention]

This invention attempts to facilitate the creation of images by mixing and displaying the created image with the original image in a Videotex image data creation device.

[Conventional technology]

The NAPLPS system is a videotex display system, and in the NAPLPS system, in the painting mode, all figures are displayed as combinations of points, line arcs, rectangles, and polygons. For example, in the case of a figure like Figure 4A, trapezoid (1) is POLYGON-FILL.
P 11. P L2. P13. P 1
4...(i) Ptt~Pt4: Displayed with the command "x, y coordinates of four vertices, rectangle (2) is RECTANGLE-FILL P2L, P22
...(ii) The x and y coordinates of the lower left and upper right vertices of P2t and P22B are displayed, and the rectangle (3) is REIC.
TANGLH-FILL P 31, P 32
...(iii) P3□+P3□: Displayed with the command x and y coordinates of the lower left and upper right vertices. Note that instructions (i) to (iii)
), "PILL" specifies that the inside of each figure is filled, and when it is not filled, "0(I
TIJNE" (colors of figures (1) to (3) are specified by separate commands, but will be omitted for simplicity).

Then, an instruction (i
) to (iii) are encoded into hexadecimal instruction codes, and this instruction code is stored in the Videotex center (host computer). When a request is made from a terminal device, the command code is transmitted from the center to the terminal device, and the terminal device decodes the command code and displays the graphic shown in FIG. 4A on the CRT display.

[Problem that the invention seeks to solve]

When the original image is converted into a line surface (comic-style image) as shown in FIG. 4A, coded, and stored in the center, a dedicated image data creation device is used in the following manner. That is, for example, an original image as shown in FIG. Trace.

Then, based on the movement of the tablet or mouse at that time, the corresponding route surface will be displayed as A in the same figure on another CRT display.
It is displayed as shown in , and an instruction code for displaying the route surface is formed.

However, with these devices and methods, the original image to be traced and the completed route surface must be viewed on separate CRT displays, which has drawbacks such as eye fatigue and inefficiency.

Therefore, it has been considered to superimpose the image of the road surface that is being completed on the image of the original drawing to be traced, and to display this superimposed image on a CRT display. That is, in this way, the original image and the route surface are displayed in a superimposed manner on the same screen, making it easy to see and preventing eye fatigue or inefficiency.

However, with this method, the following new problem arises. Namely, when tracing the original image, shapes <11~(
3), if figure (1) is displayed by command (i) and figure (2) is displayed by command (ii), the display screen at this time will be as shown in Figure 4C. The screen becomes a superimposed screen, and the inside of figure (2) is filled with "FILL'" of command (ii). Therefore, next, instruction (iii) creates figure (3)
When displaying , it becomes impossible to trace the part that should be this figure (3) (in this figure, the picture of the "window frame").

Therefore, when displaying figure (2), set "FILL" in command (ii) to "01lTLINI!". As shown in the figure, only the outline of figure (2) is superimposed and the inside is displayed. It is possible not to fill it in.

If you do this, then the command (ii) will create the figure (3)
When displaying , the part that should become this figure (3) can be easily traced. However, since NAPLPS does not have a command to repaint the inside of a figure (closed loop) that is already displayed, the figure (2) only has an outline, and the inside cannot be filled.

In this way, by superimposing the image of the road surface that is being completed on the original image, it is not possible to obtain the desired road surface (A in the figure).

This invention attempts to solve these problems.

[Means for solving problems]

Therefore, in the present invention, the video signal of the road surface is mixed with the video signal of the original image, so that the image of the road surface is mixed and displayed with the image of the original image.

[Effect]

Therefore, according to the present invention, the original image and the road surface image are displayed on the same screen of the picture tube (24), and the road surface image is displayed superimposed on the original picture. Therefore, even when displaying the next figure in the area filled with "FILL", the position of the next figure can be easily and accurately traced.

In addition, since the original map image and the route map image are displayed superimposed on the same screen, the eyes may not get tired or become inefficient, as would be the case if they were displayed on separate screens. There is no.

〔Example〕

In FIG. 1, an original image is captured by a color video camera (11), a composite video signal is taken out from the camera (11), and this signal is supplied to a converter (12) to generate three primary color signals of red, &t, and blue. The signal Re-Bo is converted to Ro-Bo, and this signal Re-Bo is sent to the A/D converter (13).
These signals are supplied to the field memory (14) and one field of them is written into the memory (14).

At this time, the video signal from the camera (11) is supplied to the forming circuit (40), and the converter (13) and memory (14) are processed from the synchronization pulse contained in the video signal.
), etc., are generated, and these signals are supplied to the appropriate circuits.

Then, the digital signal written in the memory (14) is repeatedly read out in synchronization with the horizontal scanning and vertical scanning, and this signal is supplied to the D/A converter (15) to generate the original analog signal Ro= B.

This signal Ro”Bo is converted into a switch circuit (2
1) It is supplied to the color picture tube (24) through the lines of - adder circuits (22R) to (22B) - drive amplifiers (23R) to (23B).

Also, at this time, the switch circuit (31) controls the control signal MI
It is turned off by X and the adder circuits (22R) to (22B
) is not supplied with any other signals.

Therefore, in this state, the original image captured by the camera (11) is displayed on the picture tube (24).

In addition, (30) forms a video signal of a road drawing according to the operation of a tablet or mouse, and also
) to (iii) This creation circuit (3) shows a creation circuit that creates instruction codes for NAPLPS display such as
Although the specific configuration of 0) is omitted, this is 16
It is composed of a BIT microcomputer. When creating an instruction code for displaying a road map, when the creation circuit (30) is set to mixed mode, the switch circuit (31) is turned on by the control signal MIX from the creation circuit (30), and the creation circuit (30) is turned on by the control signal MIX from the creation circuit (30). ), a video signal (three primary color signals) R1-B1 of a line drawing according to the operation of a tablet or a mouse is taken out, and these signals R1-B1 are supplied to adder circuits (22R) to (22B), respectively.

Therefore, as shown in FIG. 2, the adder circuits (22R) to (22B) take out mixed signals R2 to B2 of the signal Ro""Bo and the signals R1 to B1, and add B2 to this signal R2.
is transmitted through the amplifier (23R') to (23B) to the picture tube (
24), the original image and the road drawing image are mixed and displayed on the screen.

Therefore, for example, in the case of Fig. 4, the image of the original drawing shown in Fig. 4 is initially displayed on the picture tube (24), but by operating the tablet or mouse, the image (1)
When (2) is displayed using instructions (i) and (ii),
As shown in the same figure, the figures (1) and (2) are displayed superimposed on the original image, and the inside of figure (2) is the instruction (
Although it has been filled in by the "F mark" in ii), the original image (in this figure, the picture of "window frame") is displayed inside this figure (2). In other words, the position where figure (3) is to be displayed next is displayed more faintly than the original image.

Therefore, the position where the figure (3) should be next can be easily and accurately traced.

Note that when the creation circuit (30) is set to superimpose mode, the switch circuit (31) is activated by the signal MIX.
is turned off, and the third
Control signal SP synchronized with signals R1 to B1 as shown in the figure.
R is formed, and this signal SPR is sent to the switch circuit (21)
When the signals R1 to B1 are at black level, the signal Ro
= Bo, and the signals R3-B3 which become the signals R1-B1 when the black level is not are taken out, and these signals R3-B3 are sent to the adder circuits (22R) to (22B) and the amplifier (23R).
) to (23B) are supplied to the picture tube (24).

Therefore, in this case, the image of the road surface is superimposed on the original image and displayed, for example, "0[ITL
INB" is effective when only the outline is drawn.

Thus, according to the present invention, the original image and the road surface image are displayed on the same screen of the picture tube (24), and the road surface image is displayed superimposed on the original image. Therefore, even when displaying the next figure in the area filled with "FILL", the position where the next figure will be displayed can be easily and accurately traced.

In addition, since the original map image and the route image are displayed superimposed on the same screen, the eyes may not get tired or become inefficient, unlike if they were displayed on separate screens. There is no.

In addition, in the above, instead of the camera (11), the VT
It can be a video device such as R, video disk, video floppy, etc.

〔Effect of the invention〕

According to this invention, the original image and the road surface image are displayed on the same screen of the picture tube (24), and
Since the image of the road surface is displayed superimposed on the original image, even if you want to display the next figure in the area filled with "FILL", you can easily determine the position of the next figure.
And it can be traced accurately.

In addition, since the original map image and the route image are displayed superimposed on the same screen, the eyes may not get tired or become inefficient, unlike if they were displayed on separate screens. There is no.

[Brief explanation of the drawing]

FIG. 1 is a system diagram of an example of the present invention, and FIGS. 2 to 4 are diagrams for explaining the same. (14) is a field memory, and (30) is a creation circuit. Figure 4

Claims (1)

[Scope of Claims] A creating device that creates image data that becomes a videotex image and a video signal of the image according to input from a coordinate input means such as a tablet or a mouse, creating image data that is superimposed on the video signal of the image, and this superimposed signal is supplied to a picture tube so that the videotex image and the original image are superimposed and displayed on the screen of the picture tube. Device.