KR20140061064A - Apparatus for processing image of vehicle display panal - Google Patents

Abstract

Disclosed is an apparatus for processing the image of a vehicle display panel. A apparatus for processing the image of a vehicle display panel according to the present invention includes determining an edge region which is a curved or an inclined part between the edge color of an image and the background color outputted on a screen through a display panel and allowing the determined edge region to be changed into a color of the middle value of contrasting colors. Therefore, it can be corrected to effectively remove a step shape or a sawtooth shape generated in the edge region which is a curved or an inclined part.

Description

Technical Field [0001] The present invention relates to an image processing apparatus for a vehicle display panel,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus for a vehicle display panel, and more particularly to an image processing apparatus for a vehicle display panel for minimizing a contrast phenomenon between a background color on a screen and an edge color of an image output through a vehicle display panel will be.

Typically, a vehicle display panel displays images, objects and scenes made up of a plurality of pixels. Pixels are rectangular dots arranged in an array on a display screen.

In a color display, each pixel is defined by a specific color. The color of a pixel is typically specified as a color triplet, i.e., three representing the red, green, and blue components of the pixel color.

Suitably arranged as a whole, the pixels form an image, object or scene to be displayed.

Also, since the pixels are rectangular, it may be difficult to express the edges of the oblique or curved portion of the object without the edge of the object being stepped or serrated.

For example, in a conventional display panel for a vehicle, the edge of a curved portion or an oblique portion with respect to an image on the screen is expressed in a stepped shape or a sawtooth shape.

That is, in the conventional display panel for a vehicle, the edge of the curved portion or the diagonal portion with respect to the image on the screen is expressed not only in a stepped shape or a sawtooth shape, but also in a contrast with the background color around the image, Such a contrast phenomenon is caused not only by the relationship between the image and its background color, but also by the color contrast between other images overlapping the image.

There is a need for a solution to the problem of resolution degradation of such a conventional display panel for a vehicle.

Korean Patent Publication No. 10-2005-0048398 (2005.05.24)

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vehicular display panel that is capable of displaying a color image on a screen, And to change the determined edge period to a color having a median value of a contrasting color. The present invention also provides an image processing apparatus for a display panel for a vehicle.

According to another aspect of the present invention, there is provided a display device for a vehicle, comprising: an edge section that is a curved portion or an oblique portion of a boundary section between two or more images superimposed and output on a screen; And to provide an image processing apparatus for a vehicle display panel for changing to a color.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to a first aspect of the present invention, there is provided an image processing apparatus for a display panel for a vehicle, comprising: a display panel for displaying an image on a screen, the edge being a curved portion or an oblique portion, A correction unit for changing the edge interval to a color having an intermediate value between the background color and the edge color of the image, and an output unit for outputting the corrected screen to the vehicle display panel.

Preferably, the determination unit determines the edge period as an area indicating a predetermined pattern, which is predetermined from pixel data in each pixel forming the boundary section.

Preferably, the area indicating the predetermined pattern is a stepped or serrated pixel area.

Preferably, the correction unit specifies an interval in which the image correction for the edge period is performed.

Preferably, the section in which the image correction is performed is set to pixels that maintain the edge portion of the image in the edge section while forming a background color in contact with the edge of the image in the edge section.

Preferably, the period in which the image correction is performed is set to pixels forming the edge of the image in the edge section while maintaining the background color portion in the edge section.

Preferably, an edge attribute that can represent a reference line using pixel data related to a background color and an edge color of the image in the edge section is generated, and then an edge attribute indicating a pixel corresponding to a background color adjacent to the reference line And pixels associated with the image.

Preferably, if the color contrast between the background color in the edge section and the edge color of the image is equal to or greater than a predetermined color contrast value, the correcting section subdivides the section in which the image correction is performed into the detailed section of the degree order.

Preferably, the correction unit varies a section in which the image correction is performed.

Preferably, if the color contrast between the background color in the edge section and the edge color of the image is equal to or greater than a predetermined color contrast value, the correction section expands the width of the section in which the image correction is performed, corresponding to the determined color contrast value.

Preferably, if the color contrast between the background color in the edge section and the edge color of the image is less than a predetermined color contrast value, the width of the section in which the image correction is performed is reduced corresponding to the determined color contrast value, The width of the section where the image correction is performed is maintained.

Preferably, the correction unit performs correction for the edge period based on any one of a 32-bit ARGB format, a 16-bit ARGB format, a 16-bit RGB format, and a 24-bit RGB format.

In order to achieve the above object, according to a second aspect of the present invention, there is provided an image processing apparatus for a display panel for a vehicle, the display panel including a curved portion or a diagonal portion of a boundary section between at least two overlapped images, A correction unit for changing the edge interval to a color having an intermediate value between the overlapped images, and an output unit for outputting the corrected screen to the vehicle display panel.

Advantageously, said correction unit performs correction for said edge period based on a 32-bit ARGB format.

Preferably, the correction unit specifies an interval in which the image correction for the edge period is performed.

Preferably, the correction unit varies a section in which the image correction is performed.

Therefore, in the present invention, an edge section, which is a curved portion or an oblique portion, of a boundary section between a background color and an edge color of an image output on a screen is determined, and a determined intermediate section There is an advantage in that it is possible to perform correction for efficiently removing a stepped shape or a sawtooth shape that has occurred in an edge section which is a curved portion or an oblique portion of the image.

Further, in the present invention, an edge section, which is a curved portion or an oblique portion, of a boundary section between two or more images superimposed and outputted on a screen through a vehicle display panel is determined, and the determined edge section has an intermediate value of colors It is possible not only to perform correction for efficiently removing the stepped shape or the sawtooth shape occurring in the edge section which is the curved portion or the diagonal portion of the image by changing to the color but also an advantage of not leaving any trace by the correction on the screen have.

1 is a view of an image processing apparatus for a display panel for a vehicle according to an embodiment of the present invention.
FIG. 2 is a diagram showing an execution format of the correction unit shown in FIG. 1 as an embodiment.
3 is a diagram showing another embodiment of the execution format of the correction unit shown in FIG.
FIG. 4 is a diagram showing another embodiment of the execution format of the correction unit shown in FIG. 1. FIG.
FIG. 5 is a diagram illustrating an operation process of the image processing apparatus of the vehicle display panel shown in FIG. 1 according to an embodiment of the present invention.
6 is a view of an image processing apparatus of a display panel for a vehicle according to another embodiment of the present invention.
FIG. 7 is a diagram showing an execution result of the correction unit shown in FIG. 6 as an embodiment.
8 is a flowchart illustrating an operation of the image processing apparatus of the vehicle display panel shown in FIG. 6 according to an exemplary embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view of an image processing apparatus 100 of a display panel for a vehicle according to an embodiment of the present invention. As shown in FIG. 1, the image processing apparatus 100 of the vehicle display panel may include a determination unit 110, a correction unit 120, and an output unit 130.

The determination unit 110 determines the edge section, which is a curved portion or a slanting portion, of the boundary portion between the background color and the edge color of the image output on the screen through the display panel for the vehicle such as navigation.

For this, the determination unit 110 determines the background color, the image, and the edge color of the image being output on the screen, based on the pixel data corresponding to each pixel forming the screen of the vehicle display panel.

Then, the determination unit 110 may use the determination result to select a boundary section between the background color and the edge color of the image, and to specify an edge section that is a curved portion or a slanting portion of the image among the selected boundary sections.

Here, the determination unit 110 can specify an area representing a predetermined pattern, which is predetermined from pixel data in each pixel forming the selected boundary section, as a curved portion or a slanting edge portion of the image.

For example, when the determination unit 110 determines that a pixel region corresponding to a pattern that can be represented by a predetermined pixel array has a step shape or a sawtooth shape, it is possible to specify the stepwise or sawtooth pixel region as an edge region Do.

In addition, the correction unit 120 performs image correction to change the edge period determined by the determination unit 110 to a color having an intermediate value between the background color and the edge color of the image.

At this time, it is necessary to separately distinguish the section in which the image correction for the edge section of the correction section 120 is performed.

That is, the section where the image correction is performed can be classified into at least three types and classified.

First, an interval in which the image correction is performed may be set to pixels having a background color in contact with an edge of an image while maintaining an edge portion of the image, and may be changed to a color having the intermediate value with respect to such pixels.

Secondly, the period of image correction may be set to pixels constituting the edge of the image corresponding to the edge section while maintaining the background color portion, and it is also possible to change the color with the intermediate value for such pixels.

Third, an interval in which image correction is performed is performed by generating an edge attribute capable of representing a reference line using pixel data related to the background color in the edge section and the edge color of the image, and then generating an edge attribute related to pixels and images related to the background color adjacent to the reference line Pixels, and it is also possible to change to a color having such an intermediate value for such pixels.

If the color contrast between the background color and the edge color of the image is greater than or equal to a predetermined color contrast value, the correction unit 120 may divide the image correction period into a plurality of detail sections.

For example, pixels representing the first section of the multi-level detail section are changed to a first color that is an intermediate value between the background color and the edge color of the image, and pixels representing the second section of the multi- And a second color that forms an intermediate value between the background color and the first color filled in the pixels of the first section, and for the pixels representing the Nth section of the multi-level detailed section, And the M-th color is an intermediate value between the M-th colors filled in the pixels of the M-th color.

Furthermore, the correction unit 120 can change the interval in which the image correction is performed.

That is, when the color contrast between the background color and the edge color of the image is equal to or greater than a predetermined color contrast value, the correction unit 120 may extend the width of the section in which the image correction is performed corresponding to the determined color contrast value.

If the color contrast between the background color and the edge color of the image is less than a predetermined color contrast value, the width of the section where the image correction is performed is reduced corresponding to the determined color contrast value, or the default value It can be set to maintain the width of the section where the image correction is performed.

FIG. 2 is a diagram showing an execution format of the correction unit 120 shown in FIG. 1 as an embodiment. Referring to FIG. 2, the correction unit 120 may perform image correction based on a 32-bit ARGB format.

Here, the 32-bit ARGB format is composed of an 8-bit alpha component, an 8-bit red component, an 8-bit green component, and an 8-bit blue component.

The correction unit 120 can adjust the transparency level of the section where the image correction is performed by adjusting the alpha value using the 8-bit alpha component.

2, the alpha value for the interval in which the image correction is performed corresponds to the edge index red (i.e., 255, 255, 0, 0) and the background (i.e., 0, DC, DC, DC).

Here, DC refers to Do not Care.

2B), the alpha value for the interval in which the image correction is performed is red (i.e., 255, 255, 0, 0) and a white background (i.e., 255, 255, 255, 255).

That is, the alpha value of the diagram b) in FIG. 2 can be set by adjusting the transparency level indicating 'pink color'.

2, the alpha value for the interval in which the image correction is performed is divided into red (i.e. 255, 255, 0, 0) and red background (i.e., 255, 255, 0, 0 ). ≪ / RTI >

That is, the alpha value for the c) drawing in FIG. 2 can be set by adjusting the transparency level indicating 'red color'.

3 is a diagram showing another embodiment of the execution format of the correction unit 120 shown in FIG. Referring to FIG. 3, the correction unit 120 may perform image correction based on a 16-bit ARGB format or a 16-bit RGB format.

Here, the 16-bit ARGB format is composed of a 1-bit alpha component, a 5-bit red component, a 5-bit green component, and a 5-bit blue component.

That is, the correction unit 120 can adjust the alpha value using the 1-bit alpha component to set the interval in which the image correction is performed.

However, due to the limitation that the alpha component is composed of 1 bit, it is only possible to determine whether the image is corrected for transparency or non-transparency.

Since the alpha value for the section in which the image correction is performed is set to be non-transparent, the edge index red of the image (i.e., 1, 32, 0, 0) and It is possible to set the intermediate value of the background (i.e., 0, DC, DC, DC) as the color for the corresponding pixels.

Here, the intermediate values of the edge index red (ie, 1, 32, 0, 0) and the background (ie, 0, DC, DC, DC) of the image are red (ie, 1, 0, 0) and a non-background (i.e., 0, DC, DC, DC).

3 (b) and 3 (c) show the background, and in the case of FIG. 3 (b), the alpha value for the section in which the image correction is performed is set to be non-transparent, A color is set for pixels corresponding to an interval in which the image correction is performed to an intermediate value between an edge index red (i.e., 1, 32, 0, 0) of an image and a background (i.e., 0, DC, DC, DC) .

3, the alpha value for the section in which the image correction is performed is also set to be transparent as in the diagram b in Fig. 3, so that the edge index red of the image (i.e., 1, 32, 0, 0, 0) and the background (i.e., 0, DC, DC, DC).

FIG. 4 is a diagram showing another embodiment of the execution format of the correction unit 120 shown in FIG. Referring to FIG. 4, the correction unit 120 may perform image correction based on a 24-bit RGB format.

Here, the 24-bit RGB format is composed of an 8-bit red component, an 8-bit green component, and an 8-bit blue component.

That is, the correction unit 120 can generate an intermediate value to be applied to an interval in which the image correction is performed with RGB values.

If the pixel for the section in which the image correction is performed is not a predetermined transparent color (for example, black), color setting is performed, and the pixel for the section in which the image correction is performed If this is a predefined transparent color (eg black), do not set the color.

Here, the intermediate values (r, g, b) of the edge index red (i.e., 255, 0, 0) and the background (i.e., 0, 0, 0) of the image can be formed through a combination of RGB values.

4 (b) and 4 (b) illustrate the case where the pixel for the section in which the image correction is performed is a predetermined transparent color (for example, black) It is necessary to perform color setting, so that color setting can be performed through the intermediate value (r, g, b) for a pixel for an interval in which the image correction is performed.

In the case of FIG. 4C, since the pixel of the section in which the image correction is performed is not a predetermined transparent color (for example, black), it is necessary to perform color setting, (R, g, b) may be made for the pixel with respect to the pixel value of the pixel.

In addition,

It is possible to perform correction for the edge section based on any one of a 32-bit ARGB format, a 16-bit ARGB format, a 16-bit RGB format and a 24-bit RGB format, It is also possible to perform the correction.

FIG. 5 is a diagram illustrating an operation process of the image processing apparatus 100 of the vehicle display panel shown in FIG. 1 according to an embodiment of the present invention. As shown in FIG. 5, an image processing method for a vehicle display panel is started by determining an edge section, which is a curved portion or a slanting portion, of a boundary section between a background color and an edge color of an image outputted on a screen through a vehicle display panel (S100).

Thereafter, the image processing apparatus 100 of the vehicle display panel further specifies an interval in which the image correction is performed within the edge interval determined in step S100, and determines the interval between the background color and the edge color of the image (S102). ≪ / RTI >

Then, the image processing apparatus 100 of the vehicle display panel outputs a screen reflecting the image correction result executed in step S102 to the vehicle display panel (S104).

6 is a view of an image processing apparatus 200 of a display panel for a vehicle according to another embodiment of the present invention. 6, the image processing apparatus 200 of the vehicle display panel may include a determination unit 210, a correction unit 220, and an output unit 230.

The determination unit 210 determines an edge period that is a curved portion or a slanting portion of a boundary region between at least two overlapped images output on the screen through the vehicle display panel.

For this purpose, the determination unit 210 determines a boundary section between images on the screen based on the pixel data corresponding to each pixel forming the screen of the vehicle display panel.

Then, the determination unit 210 can use the determination result to specify an edge section, which is a curved portion or an oblique portion, of a boundary between images.

Here, the determination unit 210 can specify an area representing a predetermined pattern, which is predetermined from the pixel data within each pixel constituting the selected boundary section, as the curved portion or the slanting edge portion of the image.

In addition, the correction unit 220 performs image correction for changing the edge period determined by the determination unit 210 to a color having an intermediate value between any one image and another image.

The correction unit 220 performs image correction on the edge interval in a color having an intermediate value between three or more images when the number of images over the edge interval determined by the determination unit 210 is three or more. Hereinafter, description will be made based on two overlapping images.

At this time, the correction unit 220 can separately discriminate the section in which the image correction for the edge section is performed.

Referring to Fig. 7, the image correction of the present invention for two superimposed images will be described. Fig. 7 (a) is a diagram for explaining the image correction of the correction unit 220 by the 16-bit RGB format or the 24- .

In Fig. 7a), it is the case that, among the two superposed images, the first image is set as the superimposed image over the second image.

That is, the section where the image correction is performed for the two superimposed images is the "A" area, and the "A" area is the edge of the black color (that is, Calibration marks).

This is because, in the case of the 16-bit RGB format or the 24-bit RGB format, the intermediate value setting for the section in which the image correction is performed can be set only as transparent or non-transparent, That is, a correction trace) is formed.

On the other hand, FIG. 7A shows a case where the image correction of the correction unit 220 is performed by the 32-bit ARGB format.

Fig. 7b) shows the case where the first image among the two superimposed images is set as the superimposed image over the second image.

At this time, the "A" area in FIG. 7B does not have a border of black color (i.e., a correction mark) remains at the edge portion of the first image, unlike the "A" Do.

This is because the transparency level can be adjusted by setting the intermediate value for the section where the image correction by the 32-bit ARGB format is performed, so that the transparency level adjustment according to the color contrast of the first image and the second image in the "A & The border of the black color (i.e., the correction marks) is not formed at the edge portion of the first image.

The additional function or configuration of the corrector 220 for this embodiment can be explained through the relevant portion of the corrector 220 mentioned in FIGS.

In addition, the corrector 220 may perform correction for the edge interval based on the 32-bit ARGB format, as well as correction for the edge interval in another format (e.g., 16-bit 4444 ARGB format) It is also possible to perform.

FIG. 8 is a diagram illustrating an operation process of the image processing apparatus 200 of the vehicle display panel shown in FIG. 6 according to an embodiment of the present invention. As shown in FIG. 8, in the image processing method for a vehicle display panel, an edge section which is a curved portion or an oblique portion of a boundary portion between an edge color of an image outputted on a screen and an edge color of another image, (S200).

Thereafter, the image processing apparatus 200 of the vehicle display panel further specifies an interval in which the image correction is performed within the edge interval determined in step S200, and the intermediate image between the overlapped images Image correction for changing to color is executed (S202).

Then, the image processing apparatus 200 of the vehicle display panel outputs a screen reflecting the image correction result executed in step S202 to the vehicle display panel (S204).

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

Further, since the present invention minimizes the contrast phenomenon between the background color on the screen and the color of the edge of the image output through the display panel for a vehicle, it is not only a possibility of commercialization or sales, It is an invention that can be used for commercial use.

100, 200: Image processing apparatus 110, 210:
120, 220: a correction unit 130, 230:

Claims (16)

A determination unit for determining an edge section that is a curved portion or an oblique portion of a boundary region between a background color and an edge color of an image output on a screen through a vehicle display panel;
A correction section for changing the edge section to a color having an intermediate value between the background color and the edge color of the image; And
And outputting the corrected screen to the vehicle display panel. The method according to claim 1,
Wherein the determination unit determines an area indicating a predetermined pattern, which is predetermined from the pixel data in each pixel forming the boundary section, as the edge section. 3. The method of claim 2,
Wherein the area indicating the predetermined pattern is a stepped or serrated pixel area. The method according to claim 1,
Wherein the correction unit specifies an interval in which the image correction for the edge period is performed. 5. The method of claim 4,
Wherein the image correction unit is configured to set the pixels having the background color in contact with the edge of the image in the edge section while maintaining the edge portion of the image in the edge section. 5. The method of claim 4,
Wherein the period of the image correction is set to pixels forming the edge of the image in the edge section while maintaining the background color portion in the edge section. 5. The method of claim 4,
Wherein the edge correction section generates an edge attribute that can represent a reference line by using pixel data related to a background color in the edge section and an edge color of the image and then generates an edge attribute that is related to pixels and images related to the background color adjacent to the reference line And the pixels are set to the image processing apparatus. 5. The method of claim 4,
Wherein the correction unit subdivides an interval in which the image correction is performed into a detailed section of a degree order if the color contrast between the background color in the edge section and the edge color of the image is equal to or greater than a predetermined color contrast value. 5. The method of claim 4,
Wherein the correction unit varies a section in which the image correction is performed. 10. The method of claim 9,
Wherein the correction unit extends the width of the section in which the image correction is performed to correspond to the determined color contrast value if the color contrast between the background color in the edge section and the edge color of the image is equal to or greater than a predetermined color contrast value, Device. 10. The method of claim 9,
If the color contrast between the background color in the edge section and the edge color of the image is less than a predetermined color contrast value, the correction section reduces the width of the section in which the image correction is performed to correspond to the determined color contrast value, The width of the section in which the image is formed. The method according to claim 1,
Wherein the correction unit performs correction for the edge period based on any one of a 32-bit ARGB format, a 16-bit ARGB format, a 16-bit RGB format, and a 24-bit RGB format. A determining unit for determining an edge section that is a curved portion or an oblique portion of a boundary section between at least two overlapped images outputted on a screen through a vehicle display panel;
A correction section for changing the edge section into a color having an intermediate value between the overlapped images; And
And outputting the corrected screen to the vehicle display panel. 14. The method of claim 13,
Wherein the correction unit performs correction for the edge period based on a 32-bit ARGB format. 14. The method of claim 13,
Wherein the correction unit specifies an interval in which the image correction for the edge period is performed. 14. The method of claim 13,
Wherein the correction unit varies a section in which the image correction is performed.

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