Image display apparatus and operating method thereof
地域：
Suwon-si
摘要
An image display apparatus and a method thereof. The image display apparatus includes: a display; a processor; a memory including a first buffer and a second buffer; and at least one program stored in the memory and executed by the processor. The instructions included in the program cause the processor to perform graphics processing on a first image, convert an attribute of the graphics-processed first image, generate an on screen display (OSD) image and control the memory to store the OSD image in the second buffer, perform image quality processing on the first image of which the attribute is converted, and control the display to display the image-quality-processed first image and the OSD image.
說明書
This application claims priority from Korean Patent Application No. 10-2016-0111691, filed on Aug. 31, 2016, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety.
Apparatuses and methods consistent with aspects of one or more exemplary embodiments broadly relate to an image display apparatus and an operating method thereof, and more particularly, to an image display apparatus for displaying a 360° image and an operating method thereof.
An image display apparatus is an apparatus having a function of displaying an image which a user can view. The user may view a broadcast program through the image display apparatus. The image display apparatus displays a broadcast program selected by the user from among broadcast signals broadcast from broadcasting stations. Recently, there has been a trend whereby broadcasting technique has been changing from analog to digital broadcasting.
The digital broadcasting technique indicates a broadcasting technique of broadcasting digital images and voice signals. Compared with analog broadcasting, the digital broadcasting technique has less data loss due to robustness to external noise, is better in terms of error correction, has a higher resolution, and provides a clearer image. In addition, unlike the analog broadcasting technique, the digital broadcasting technique may provide an interactive service.
權(quán)利要求
What is claimed is:1. An image display apparatus comprising:a display; a processor; a memory; and at least one program stored in the memory and executed by the processor, wherein the at least one program comprises instructions which when executed by the processor cause the image display apparatus to:obtain a general image by decoding a first video content, store the general image in a first buffer, the first buffer being for storing a video image, obtain a planar-format image by decoding a second video content, wherein the general image and the planar-format image are represented by a first color space, perform graphic processing on the planar-format image to obtain a sphere-format image corresponding to the planar-format image, the sphere-format image represented by a second color space, select a partial sphere-format image among the sphere-format image based on a user input on the sphere-format image, perform graphic processing on the partial sphere-format image to obtain a partial planar-format image, change a color space of the partial planar-format image from the second color space to the first color space, for performing image quality processing on the partial planar-format image, store the partial planar-format image of which color space is changed from the second color space to the first color space in the first buffer, generate an on screen display (OSD) image, store the OSD image in a second buffer, the second buffer being for storing a graphic image, perform the image quality processing on the partial planar-format image of which the color space is changed from the second color space to the first color space and which is stored in the first buffer, and control the display to display the image-quality-processed partial planar-format image with the OSD image, wherein the processor is configured to store the general image in the first buffer without performing of the graphic processing and the change of the color space on the general image, and wherein the first buffer storing the partial planar-format image and the general image is configured separately from the second buffer storing the OSD image. 2. The image display apparatus of claim 1 , wherein the first color space is a YUV color space and the second color space is an RGB color space. 3. The image display apparatus of claim 1 , further comprising a color space converter (CSC), implemented by the processor, configured to change the color space of the partial planar-format image from an RGB color space to a YUV color space. 4. The image display apparatus of claim 1 , further comprising an image quality processor, connected to the first buffer, configured to perform the image quality processing on the planar-format partial image received from the first buffer and output the image-quality-processed planar-format partial image. 5. The image display apparatus of claim 1 , wherein the image quality processing comprises at least one of contrast ratio and color improvement, gamma correction, sharpness enhancement, and jagging phenomenon alleviation processing. 6. The image display apparatus of claim 1 , further comprising a video decoder configured to decode the second video content to obtain the planar-format image. 7. The image display apparatus of claim 1 ,wherein the processor is further configured to: map the planar-format image to the sphere-format image. 8. The image display apparatus of claim 7 ,wherein the processor is further configured to receive the user input for selecting the partial sphere-format image from the sphere-format image and extract the partial sphere-format image from the sphere-format image based on the user input. 9. The image display apparatus of claim 1 ,wherein the image quality processing on the partial planar-format image optimizes a cubic effect and a color sense of the partial planar-format image and enhances sharpness of the partial planar-format image by performing sharpness processing on edge portions of the partial planar-format. 10. The image display apparatus of claim 1 , wherein the processor is further configured to perform graphic processing on the partial sphere-format image by correcting distortion of the partial sphere-format image. 11. The image display apparatus of claim 1 , wherein the second video content corresponds to 360-degree video. 12. A method of displaying an image, the method comprising:obtaining a general image by decoding a first video content; storing the general image in a first buffer, the first buffer being for storing a video image; obtaining a planar-format image by decoding a second video content, wherein the general image and the planar-format image are represented by a first color space; performing, by a processor, graphic processing on the planar-format image to obtain a sphere-format image corresponding to the planar-format image, the sphere-format image represented by a second color space; selecting a partial sphere-format image among the sphere-format image based on a user input on the sphere-format image; performing graphic processing on the partial sphere-format image to obtain a partial planar-format image; changing a color space of the partial planar-format image from the second color space to the first color space, for performing image quality processing on the partial planar-format image; storing the partial planar-format image of which color space is changed from the second color space to the first color space in the first buffer, generating an on screen display (OSD) image; storing the generated OSD image in a second buffer, the second buffer being for storing a graphic image; performing the image quality processing on the partial planar-format image of which the color space is changed from the second color space to the first color space and which is stored in the first buffer; and displaying the image-quality-processed partial planar-format image and the OSD image on a display, wherein the general image is stored in the first buffer without the graphic processing and the change of the color space being performed on the general image, and wherein the first buffer storing the partial planar-format image and the general image is configured separately from the second buffer storing the OSD image. 13. The method of claim 12 , wherein the first color space is a YUV color space and the second color space is an RGB color space. 14. The method of claim 12 , wherein the performing the image quality processing on the partial planar-format image comprises performing at least one of contrast ratio and color improvement, gamma correction, sharpness enhancement, and jagging phenomenon alleviation processing. 15. The method of claim 12 , wherein the performing graphics processing on the planar-format image comprises:mapping the planar-format image to the sphere-format image. 16. The method of claim 15 , further comprising:receiving an input for selecting the partial image of the sphere-format image, and wherein the obtaining the partial sphere-format image comprises extracting the partial sphere-format image from the sphere-format image based on the user input. 17. The method of claim 12 ,wherein the image quality processing is not performed on the OSD image. 18. The method of claim 12 , wherein the image quality processing on the partial planar-format image optimizes a cubic effect and a color sense of the partial planar-format image and enhances sharpness of the partial planar-format image by performing sharpness processing on edge portions of the partial planar-format image. 19. The method of claim 12 , wherein the performing graphic processing on the partial sphere-format image comprises correcting distortion of the partial sphere-format image. 20. The method of claim 12 , wherein the second video content corresponds to 360-degree video. 21. A non-transitory computer-readable recording medium having recorded thereon program instructions, which when executed by a computer, perform the method of claim 12 .
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