Apparatus and method for processing three dimensional image on multi-layer display
An apparatus and method of processing three-dimensional (3D) images on a multi-layer display may generate virtual depth information based on original depth information, and display 3D images having various depth values using the generated virtual depth information. Also, the apparatus and method may appropriately provide color information to each of a plurality of display layers, thereby preventing an original image from being damaged.
1. An apparatus of processing images for a multi-layer display, the apparatus comprising:
a depth information conversion unit to convert original depth information of an input image to generate virtual depth information;
a color information conversion unit to adjust color information of the input image based on the virtual depth information to provide output color information to each of a plurality of display layers; and
a local dimming controller to reduce power consumption and increase contrast by modifying power applied to each of the plurality of display layers, based on the virtual depth information, such that relatively more power is applied to a respective display layer that is closer to an observer.
2. The apparatus of claim 1 , wherein the depth information conversion unit converts the original depth information of the input image using histogram equalization to generate the virtual depth information.
3. The apparatus of claim 1 , wherein the depth information conversion unit converts the original depth information so that available depth information elements included in the original depth information of the input image are dispersed, the available depth information elements being densely populated in a predetermined range before being dispersed.
4. The apparatus of claim 1 , wherein the depth information conversion unit increases distances between available depth information elements included in the original depth information of the input image to thereby generate the virtual depth information.
5. The apparatus of claim 1 , wherein the color information conversion unit adjusts saturation and brightness of the input image while maintaining hue of the input image based on the virtual depth information to thereby provide the output color information to each of the plurality of display layers.
6. The apparatus of claim 1 , wherein the color information conversion unit provides the output color information to each of the plurality of display layers based on a relation of the front-rear position between the plurality of display layers with respect to an observer or backlight, and based on the virtual depth information.
7. The apparatus of claim 1 , wherein the color information conversion unit adjusts brightness and saturation of the input image based on the virtual depth information to generate the output color information for at least one display layer from among the plurality of display layers, and generates the output color information for at least one remaining display layer based on the output color information for the at least one display layer.
8. The apparatus of claim 1 , wherein the plurality of display layers display output images using output color information, and the color information conversion unit generates the output color information to prevent displayed images, generated due to the output images, from distorting the color information of the input image.
9. The apparatus of claim 1 , further comprising:
a local dimming controller to control local dimming applied to the input image depending on the virtual depth information.
10. The apparatus of claim 1 , wherein the color information conversion unit includes:
a color space conversion device to convert a format of the color information of the input image from an RGB (Red, Green, Blue) format to a HSV (Hue, Saturation, and Value) format.
11. The apparatus of claim 10 , wherein the color information conversion unit further includes:
a medium color information generation unit to adjust the color information of the input image in the HSV format using the virtual depth information to generate mediate color information for each of the plurality of display layers; and
an output color information generation unit to convert a format of the mediate color information into the RGB format to generate the output color information, and to provide the output color information to the plurality of display layers.
12. The apparatus of claim 1 , wherein three-dimensional (3D) images having various depth values are displayed using the generated virtual depth information.
13. A method of processing images for a multi-layer display using an image processing apparatus, the method comprising:
converting original depth information of an input image to generate virtual depth information;
adjusting, by the image processing apparatus, color information of the input image based on the virtual depth information to provide output color information to each of a plurality of display layers; and
reducing power consumption and increasing contrast by modifying power applied to each of the plurality of display layers, based on the virtual depth information, such that relatively more power is applied to a respective display layer that is closer to an observer.
14. The method of claim 13 , wherein the converting converts the original depth information of the input image using histogram equalization to generate the virtual depth information.
15. The method of claim 13 , wherein the converting converts the original depth information, so that available depth information elements included in the original depth information of the input image are dispersed, the available depth information elements being densely populated in a predetermined range before being dispersed.
16. The method of claim 13 , wherein the adjusting adjusts saturation and brightness of the input image while maintaining hue of the input image based on the virtual depth information to thereby provide the output color information to each of the plurality of display layers.
17. The method of claim 13 , further comprising:
controlling local dimming applied to the input image depending on the virtual depth information.
18. At least one computer readable storage medium storing computer readable code comprising instructions implementing the method of claim 13 .
19. A method of processing images for a multi-layer display using an image processing apparatus, the method comprising:
receiving an input image;
calculating original depth information, based on the received input image;
converting the calculated original depth information into virtual depth information;
adjusting output color information, based on the input image and the virtual depth information, and transmitting the adjusted output color information to each corresponding plural display layers; and
reducing power consumption and increasing contrast by modifying power applied to each of the plurality of display layers, based on the virtual depth information, such that relatively more power is applied to a respective display layer that is closer to an observer.
20. The method of claim 19 , wherein the converting converts the original depth information, so that available depth information elements included in the original depth information of the input image are dispersed, the available depth information elements being densely populated in a predetermined range before being dispersed.
21. The method of claim 19 , wherein the adjusting adjusts saturation and brightness of the input image while maintaining hue of the input image based on the virtual depth information to thereby provide the output color information to each of the plurality of display layers.