System and method for determining colors of foreground, and computer readable recording medium therefor
View Patent ↗Provided are a system and method for determining a color of a foreground and a computer readable recording medium therefor. The system includes: at least one processor configured to implement a motion detector which detects a motion region from an image; and a color determiner which determines the color of the foreground in the motion region based on a difference between colors of the motion region and colors of a surrounding region of the motion region, for displaying the determined foreground color with the foreground at a display device.
1. A system for determining at least one color of a foreground, the system comprising:
at least one processor configured to implement:
a motion detector configured to detect a motion region from an image; and
a color determiner configured to
i) determine the color of the foreground included in the motion region based on a difference between at least one color of the motion region and at least one color of a surrounding region of the motion region
ii) generate a color histogram of the surrounding region and a color histogram of the motion region,
iii) obtain a color histogram of the foreground based on a difference between the color histogram of the motion region and the color histogram of the surrounding region, and
iv) determine the color of the foreground from the color histogram of the foreground, for displaying the determined color with the foreground at a display device,
wherein the color of the foreground is a representative color which has the highest frequency in two or more colors of the foreground shown in the color histogram of the foreground.
2. The system of claim 1 , wherein the motion region comprises a first section corresponding to the foreground and a second section corresponding to a remaining section of the motion region.
3. The system of claim 2 , wherein the color determiner is configured to determine at least one color of the first section as the color of the foreground, and
wherein the color determiner is not configured to determine any color from the second section to determine the color of the surrounding region or the color of the foreground.
4. The system of claim 2 , wherein the color determiner is configured to determine that the color of the second section is substantially similar to or the same as the color of the surrounding region, and remove the color of the second section from the color of the motion region to determine the color of the foreground.
5. The system of claim 1 , further comprising a display device configured to display the color of the foreground determined by the color determiner on a border of the foreground.
6. The system of claim 1 , wherein in an image frame comprising the motion region, the surrounding region is a region not including the motion region.
7. The system of claim 1 , wherein the color determiner is configured to determine the color of the motion region and the color of the surrounding region, and remove the color of the surrounding region from the color of the motion region to determine the color of the foreground.
8. The system of claim 1 , wherein the color of the foreground determined by the color determiner is a dominant color among a plurality of colors of the foreground.
9. A method of determining at least one color of a foreground, the method comprising:
detecting a motion region from an image; and
determining the color of the foreground included in the motion region based on a difference between at least one color of the motion region and at least one color of a surrounding region of the motion region, for displaying the determined color with the foreground at a display device,
wherein the determining the color of the foreground comprises:
generating a color histogram of the surrounding region and a color histogram of the motion region;
obtaining a color histogram of the foreground based on a difference between the color histogram of the motion region and the color histogram of the surrounding region; and
determining the color of the foreground from the color histogram of the foreground,
wherein the color of the foreground is a representative color which has the highest frequency in two or more colors of the foreground shown in the color histogram of the foreground.
10. The method of claim 9 , wherein the motion region comprises a first section corresponding to the foreground and a second section corresponding to a remaining section of the motion region.
11. The method of claim 10 , wherein the determining the color of the foreground comprises determining at least one color of the first section as the color of the foreground, and
wherein the determining the color of the foreground does not comprise determining any color from the second section to determine the color of the surrounding region of the color of the foreground.
12. The method of claim 10 , wherein the determining the color of the foreground comprises:
determining that the color of the second section is substantially similar to or the same as the color of the surrounding region; and
removing the color of the second section from the color of the motion region to determine the color of the foreground.
13. The method of claim 9 , further comprising displaying the color of the foreground determined by the determining the color of the foreground on a border of the foreground.
14. The method of claim 9 , wherein in an image frame comprising the motion region, the surrounding region is a region not including the motion region.
15. The method of claim 9 , wherein the determining the color of the foreground comprises:
determining the color of the motion region and the color of the surrounding region; and
removing the color of the surrounding region from the color of the motion region to determine the color of the foreground.
16. A non-transitory computer readable recording medium storing a program for executing the method of claim 9 .