Title:
画像の効果色自動抽出方法及び画像の元の色復元方法と、それを利用した画像データベース生成及び画像検索方法
Document Type and Number:
Japanese Patent JP3692040
Kind Code:
B2
Abstract:
The present invention relates to an effect color extracting method of an image and an image original color recovering method which are capable of automatically extracting an effect color of an image pictured in accordance with an environment of a certain illumination and a color lens (or filter) and a feature of a camera, adjusting the extracted effect color and recovering an original image color of the image for thereby enhancing a performance of an image search. In the method for recovering an image color pictured based on a certain effect of an original color or other colors or an effect color in accordance with a feature of a camera and a surrounding environment of an object, an image color recovering method includes the steps of comparing all pixels of a frame of the image and a first critical value, obtaining an average hue value Hue_Ave with respect to the hues of the pixels each having a crominance smaller than the first critical value, computing a hue corresponding to the average hue value Hue_Ave, and determining the computed hue as an effect color, and compensating the image color affected by the effect color using the computed hue and adjusting the image color to an original color.
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Inventors:
Kim Hyonjun
Lee, Jin Su
Lee, Jin Su
Application Number:
JP2000614206A
Publication Date:
September 07, 2005
Filing Date:
January 19, 2000
Export Citation:
Assignee:
LG Electronics Inc.
International Classes:
G06F17/30; G06T1/00; G06T7/00; G06T7/40; H04N1/46; G06T5/00; H04N1/60; H04N9/64; (IPC1-7): H04N9/64; G06T1/00; G06T7/00; H04N1/46; H04N1/60
Domestic Patent References:
| JP8275194A | ||||
| JP8037667A | ||||
| JP5344530A | ||||
| JP2153692A | ||||
| JP10040355A | ||||
| JP10191246A | ||||
| JP9186936A | ||||
| JP10162128A |
Attorney, Agent or Firm:
Masaki Yamakawa
Hiroro Kurokawa
Masayuki Konno
Osamu Nishiyama
Shigeki Yamakawa
Hiroro Kurokawa
Masayuki Konno
Osamu Nishiyama
Shigeki Yamakawa