영상 투영 장치에 대한 색 보정 장치 및 방법
    2.
    发明公开
    영상 투영 장치에 대한 색 보정 장치 및 방법 审中-实审
    修正影像投影设备颜色的装置及方法

    公开(公告)号:KR1020130088718A

    公开(公告)日:2013-08-08

    申请号:KR1020120111325

    申请日:2012-10-08

    CPC classification number: H04N9/3182 H04N9/3147

    Abstract: PURPOSE: An apparatus for correcting color for an image projection device and a method thereof are provided to minimize color correction procedure, by performing color correction using one sample image in a single projection or multi projection system. CONSTITUTION: A color correction device acquires a photographing image obtained by photographing a projected sample image in which an image acquisition device is projected (S100). The color correction device generates a 3D color cube by area on the basis of a color value of a block of the sample image and a color value of the photographing image, and selects a reference 3D color cube (S120,S140). The color correction device generates a look-up table for each area on the basis of the reference 3D color cube, and corrects the color of an input image by using the look-up table (S160,S180). [Reference numerals] (S100) Acquiring a photographing image obtained by photographing a projected sample image using an image acquisition device; (S120) Generating a 3D color cube by the area of the photographing image on the basis of a color value of a block of the sample image and a color value of the photographing image; (S140) Selecting a reference 3D color cube; (S160) Generating a look-up table (LUT) for each area on the basis of the reference 3D color cube; (S180) Correcting the color of an input image by using the look-up table

    Abstract translation: 目的:提供一种用于校正图像投影设备的颜色的设备及其方法,以通过在单个投影或多投影系统中使用一个样本图像进行颜色校正来最小化颜色校正过程。 构成:颜色校正装置获取通过拍摄投射了图像获取装置的投影样本图像而获得的拍摄图像(S100)。 颜色校正装置根据样本图像的块的颜色值和拍摄图像的颜色值,按区域生成3D颜色立方体,并且选择参考3D立方体(S120,S140)。 颜色校正装置基于参考3D彩色立方体为每个区域生成查找表,并且通过使用查找表来校正输入图像的颜色(S160,S180)。 (附图标记)(S100)获取通过使用图像获取装置拍摄投影的样本图像而获得的拍摄图像; (S120)基于所述拍摄图像的块的颜色值和所述拍摄图像的颜色值,通过所述拍摄图像的区域生成3D彩色立方体; (S140)选择参考3D彩色立方体; (S160)基于参考3D彩色立方体为每个区域生成查找表(LUT); (S180)使用查找表校正输入图像的颜色

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