JPH03239290A - Video plotting device - Google Patents

Abstract

PURPOSE:To improve the visibility of a character-string integrated into a prescribed area of a background picture of a monitor screen irrespective of a person's eyesight and monitor installation environment, etc., by providing at least one or more in a data working part group consisting of a character size data working part, a luminance data working part and a tone data working part. CONSTITUTION:The device is provided with at least one or more in a data working part group consisting of a character size data working part M3, a luminance data working part M4, and a tone data working part M5 for detecting a tone in a prescribed area in a monitor apparatus screen, and for working inputted character-string video data MD to data which becomes that which compares a tone of a character-string with a detected tone. In such a state, an image of a character-string integrated into a prescribed area of a background picture is changed to an image of a tone compared with a tone of a detected prescribed area, for instance, by the tone data working part M5, and an image consisting of the background picture and the changed character- string is displayed on a screen of a monitor apparatus M. In such a way, the visibility of the character-string can be improved irrespective of a person's eyesight and monitor installation environment, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention [Field of Industrial Application] The present invention relates to a video drawing device that displays an image in which a character string is incorporated in a predetermined area of a background image on the screen of a monitor device.

[Prior Art 1] Conventionally, this type of video rendering device has been equipped with a music playback device that plays the musical score of a song and outputs the performance from a speaker.
It constitutes the so-called Nonoraoga device.

Then, while displaying on the monitor an image in which the character strings of the lyrics of the song are incorporated in a predetermined area of the background image using the video drawing device,
A musical performance is played using a music playback device, and the person singing the song can sing while looking at the lyrics □ on a monitor.

[Problems to be solved by the invention] 1.However, since the size of the string of lyrics displayed on the monitor is uniform, it is difficult to sing in a place far away from the monitor or in a hazy room due to smoking, etc. For people who are nearsighted or nearsighted, it may be impossible to visually recognize the lyrics string on the monitor screen.

Also, if you want to make the background image different each time the same song is played, by incorporating the lyrics string of that song into the background image, the color of the incorporated lyrics string and the color of the background image can be changed. may have the same color tone. If such a situation occurs, it may become impossible to visually recognize the lyrics character string on the monitor screen.

In order to solve the above-mentioned problems, the present invention improves the visibility of character strings (lyrics character strings) incorporated in a predetermined area of the background image of a playback card monitor screen, regardless of the person's visual acuity or the monitor installation environment. The purpose is to

■Machi Q Tsutsumi consideration [Means for solving the problem] The means adopted by the present invention to achieve the above object are as follows:
As the basic configuration is illustrated in the block diagram of FIG. background video data 1-(D and video data storage means M1 for storing the character string video data MD that is the basis for displaying the character string; and a video data storage means M1 for storing the background video data 1-(D) and the character string video data MDt for displaying the background video data 1-(D); Image information in which the character string is incorporated in a predetermined area of a background image on the screen is generated based on both of the captured video data, and an output signal based on the generated image information is output to the monitor device M. 4. The video control means M2 processes the captured character string video data MD into data in which the character size of the character string becomes a size specified by an external operation. a brightness data processing unit M4 that processes the captured character string video data MD into data such that the brightness contrast of the character string is a brightness contrast instructed by an external operation; and a predetermined area on the monitor device screen. a color tone data processing section M5 that detects the color tone of the character string and processes the captured character string video data MD into data such that the color tone of the character string is contrasted with the detected color tone; The gist is to have at least one or more of these.

[Function] 1] The video drawing device having the knee-writing configuration uses the video control device M2 to draw characters in a predetermined area of the background image based on the background video data HD and the character string video data MD taken in from the video data storage device M1. The image in which the columns are incorporated is displayed on the screen of the monitor device M.

At this time, if the font size of the character string is specified by an external operation, the font size data processing unit M3 changes the image of the character string incorporated in a predetermined area of the background image to an image of the character string of the specified size. Then, an image consisting of the background image and the changed character string is displayed on the screen of the monitor device M.

Also, if the brightness contrast of the character string is specified by an external operation, the brightness data processing unit M4 changes the image of the character string incorporated in a predetermined area of the background image to an image with the specified brightness contrast, and An image consisting of the image and the changed character string is displayed on the screen of the monitor device M.

Furthermore, the image of the character string incorporated in a predetermined area of the background image is changed by the color tone data processing unit M5, which detects the color tone of the predetermined area, into an image with a tone that contrasts with the detected color tone of the predetermined area. and the changed character string are displayed on the screen of the monitor device M.

Embodiment 1 Next, an embodiment of the video rendering device of the present invention will be described based on the drawings. FIG. 2 is a block diagram of a karaoke device using the video rendering device of the embodiment.

As shown in FIG. 2, the karaoke device 1 includes a video drawing device 5 that displays a background image incorporating lyrics character strings on a monitor 3, and an audio signal control section 9 that plays music from a speaker 7. ing.

The video rendering device 5 includes musical score data that is the basis of the accompaniment of the song;
A memory that stores various data such as video data that is the basis of the background image, lyric data that is the basis of the lyrics string of the song, and timing data that determines the output timing of each of these data] and a music selector that specifies the song. ] 3, a correction input device 15 having a size designation switch 15a for specifying the character size to double-width, quadruple-width, etc., and a brightness selection switch 15b for sharpening the brightness contrast of the characters in stages, and input video data and lyrics. An electronic control circuit 20 configured as a logic operation circuit includes an image control unit 17 that synthesizes an image from data, executes various processes such as changing character size and brightness contrast (color tone), and outputs it to the monitor 3. We are prepared.

The audio signal control unit 9 receives the input musical score signal (musical score data).
an accompaniment generation unit 9a that converts the signal into a musical accompaniment signal and outputs the signal;
9b for amplifying the input music accompaniment signal and the audio signal from the microphone 10 and outputting the audible sound to the speaker 7.

The electronic control circuit 20 reads musical score data, video data, lyrics data, etc. corresponding to the instructions from the music selector 13,
The video control unit 17 generates a display image signal incorporating the lyrics string in a predetermined area of the background image on the screen of the monitor 3.
At the same time, the musical score data is output to the audio signal control section 9, and the well-known CPU 21. ROM 22 that stores various programs to be described later. It is configured as a logic operation circuit centered around RAM23. These and common bus 2.
Input/output with the outside is performed through input/output ports 25 which are mutually connected via 4.

The input/output port 258- of the electronic control circuit 20 includes the memory 1]1 music selector]3. Correction input device 1
5. The accompaniment generation section 9a of the audio signal control section 9 and a video tube color tone detector (not shown) of the monitor 3 that detects the color tone of a predetermined area of the monitor 3 that displays lyrics character strings are connected to the video control section 17, etc. .

Note that it is also possible to directly analyze the display image signal output to the video control section 17 to determine the color tone of the area, and to omit this video tube color tone detector.

Next, the video drawing device 5 of this embodiment having the above-described configuration will be described.
The image generation routine performed by the computer will be explained based on the flowchart shown in FIG.

The flowchart shown in FIG. 3 is repeatedly processed at predetermined time intervals after initial processing, that is, clearing of the internal register of the CPU 21, is performed only when the power is turned on.

As shown in the figure, after the above initial processing, data (video data, lyrics data, timing data, etc.) necessary for generating an image corresponding to the instruction from the music selector 13 is read from the E memory 11 (step 100°). (Hereinafter, step will be simply referred to as S.)

After reading this data, the following 8
A series of processes from 105 to 5130 are executed.

In other words, the correction input device whether or not there is an instruction to correct the font size]5
It is difficult to judge from the operating state of the size designation switch 15a.
105), if this size designation switch 15a is not operated in any way, it is determined that the font size does not need to be corrected and
135. If it is determined that the size designation switch 15a has been operated, the operated character size (designated size) is determined (S110). For example, if the singer selects a double-width font size by operating the size designation switch 15a, depending on the singer's visual acuity, the haze of the air around the monitor 3, etc., the designated size (double-width)
Then, the loaded lyrics data is processed into data corresponding to the specified size (double size) (S120).

Next, it is determined whether the lyrics character string based on the processed lyrics data can be displayed in one column in a predetermined area of the screen of the monitor 3 (S125), and if it can be displayed in one column, the process moves to 5135, and it cannot be displayed in one column. If it is determined, the lyrics data is reprocessed into data in which the lyrics character strings are displayed in multiple columns such as two or three columns within a predetermined area (5130), and the process moves to 5135.

After the above-mentioned series of character size correction processing, the following series of processing from S] 35 to 5150 is performed in order to correct the brightness contrast of the lyric character string to be incorporated into the background image based on an external operation.

First, the presence or absence of a brightness contrast correction instruction is determined based on the operating state of the brightness selection switch 15b of the correction input device 15 (S135). If the brightness selection switch 5b is not operated at all, it is determined that brightness contrast correction is not required (S135). to move to.

If it is determined that the brightness selection switch 15b has been operated, the sharpness degree of the operation is determined (S140). For example, as in the case of the font size correction process described above, the singer operates the brightness selection switch 15b to increase the sharpness by +2 degrees (in this embodiment, the sharpness can be set from -4 to +4 degrees, and If you select a brightness contrast (the sharpness increases as the value increases), this sharpness (+2 degrees) is determined and the loaded lyrics data is processed into data corresponding to the sharpness specified (S
150).

After the above series of brightness contrast correction processing, the following series of processing from 5160 to 5190 is performed in order to correct the color tone of the lyrics character string to contrast with the color tone of the background image.

That is, the color tone of a predetermined area on the monitor 3 is read from the picture tube color tone detector (not shown) described above (S160).
, Compare the read color tone and the color tone of the lyrics character string based on the lyrics data based on a color tone contrast map (a two-dimensional map and 17 that shows the degree of approximation of various color tones to the color tone of a predetermined area) stored in the ROM 22. (S170).

From this comparison result, it is determined whether or not the tone of the lyrics character string is similar to the tone of the predetermined area (8175), and if the two tones are not similar, the process moves to step 5190 without making any modifications to the lyrics data. , a color tone that can be clearly contrasted with the color tone of a given area if it is similar;
That is, a color tone different from the color tone of the predetermined area is selected based on the color tone contrast map (S180). Thereafter, the lyrics data is processed into data that becomes a lyrics character string of the selected color tone (S] 90).

In this way, if there is an instruction to modify the font size or brightness contrast of a lyrics string, the lyrics data is processed based on the instruction, or after data processing is performed to obtain a lyrics string with a color tone that contrasts with the color tone of a predetermined area. An image in which a lyrics character string is incorporated into a background image is generated using the lyrics data, video data, etc. (S200). Then, the generated image signal is output to the video control unit 17 (S210), the image is displayed on the monitor 3 (S220), this routine is ended, and the process described in 2 is repeated.

As explained above, the video rendering device 5 of this embodiment can be used to monitor the visual acuity of the person who sings using the karaoke device 1 and the monitor 3.
The degree of peripheral haze (operation of the size designation switch 15a and brightness selection switch 15b); Fix it. Specifically, if the nearsighted person is a singer or the air is hazy due to smoking, etc., double angle,
Display lyrics strings with font size enlarged to 4x, etc., or display lyrics strings with sharp brightness contrast]
Or, if the color tone of the lyrics string is similar to the color tone of the background image, the lyrics string is displayed in a color tone that is easy to see and contrasts with the color tone of the background image.

As a result, according to the video drawing device 5, the visibility of the lyrics character string incorporated in a predetermined area of the background image of the monitor screen can be improved regardless of the person's visual acuity, the environment in which the monitor is installed, and the like.

Further, in this embodiment, when correcting the font size, a configuration is provided in which lyrics strings of enlarged font size are displayed in multiple rows in a predetermined area of the monitor screen. Therefore, the display change frequency (timing) of lyrics strings can be made the same as when displaying lyrics strings of normal size. In other words, the lyrics can be displayed with the same number of characters as the normal size lyrics string even though it is an enlarged lyrics string, so the singer can visually follow each character of the lyrics string without feeling uncomfortable.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment in any way, and it goes without saying that it can be implemented in various forms without departing from the gist of the present invention. be.

For example, it may include any one of a structure for correcting character size, a structure for correcting brightness contrast, and a structure for correcting color tone.

Effect of flame lighting As detailed above, according to the video drawing device of the present invention, the character size of the character string on the monitor screen is adjusted according to the level of human visual acuity, the degree of haze around the monitor, or the color tone of the background image. ,
Brightness contrast, color tone, etc. can be modified. Specifically, if a myopic person is looking at a monitor screen, if the air is hazy due to smoking, or if the color tone of the text string is similar to the color tone of the background image, double-angle, quadruple-angle, etc. It is enlarged l-7, the character string of the font size and the brightness contrast are 5
- A sharp character string or a character string with an easy-to-read color tone that contrasts with the color tone of the background image can be incorporated into the background image and displayed on the monitor screen.

As a result, the visibility of the character string incorporated in a predetermined area of the background image of the monitor screen can be improved regardless of the person's visual acuity or the environment in which the monitor is installed.

[Brief explanation of drawings]

FIG. 1 is a block diagram illustrating the basic configuration of a video rendering device according to the present invention, FIG. 2 is a block diagram of a karaoke apparatus using the video rendering device of the embodiment, and FIG. 3 is a video rendering device of the embodiment. 5 is a flowchart of an image generation routine performed by the device 5.

Claims (1)

[Scope of Claims] 1. A video drawing device that displays an image consisting of a background image and a character string on the screen of a monitor device, which displays the background image data and the character string that are the basis for displaying the background image. a video data storage means for storing character string video data to be used as a basis for the video data; , a video control means for generating an output signal based on the captured image data and outputting an output signal based on the generated image information to the monitor device, the video control means: a character size data processing unit that processes the string video data into data in which the character size of the character string is a size specified by an external operation; a brightness data processing unit that processes the data to have a brightness contrast specified by an operation; A video drawing device comprising at least one of a data processing unit group consisting of a color tone data processing unit that processes data to be contrasted with a detected color tone.