公开(公告)号：US20120033885A1

公开(公告)日：2012-02-09

申请号：US13092438

申请日：2011-04-22

申请人： Joo Young HA ,  Won Tae CHOI ,  Bong Soon KANG ,  Byung Hyun KIM ,  Joo Hyun KIM ,  Sun Mi SIN ,  Won Woo JANG ,  Hak Yong HAN ,  Gi Dong LEE

发明人： Joo Young HA ,  Won Tae CHOI ,  Bong Soon KANG ,  Byung Hyun KIM ,  Joo Hyun KIM ,  Sun Mi SIN ,  Won Woo JANG ,  Hak Yong HAN ,  Gi Dong LEE

IPC分类号： G06K9/40 ,  G06K9/00

CPC分类号： G06T5/003 ,  G06T7/13 ,  G06T2207/20192

摘要： There is provided an apparatus for improving the sharpness of an image, which may prevent occurrence of distortion of an image in an edge enhancement process of the image by applying an active weight in accordance with a two-dimensional (2D) high pass filtering value of the image. The apparatus may include: a 2D high pass filter outputting a high frequency element value for the luminance values of pixels of an input image; a weight generating unit generating a weight changed depending on a magnitude of the high frequency element value; a weight applying unit applying the weight to the high frequency element value; and an edge enhancement image generating unit adding, to the luminance values of the pixels of the input image, the high frequency element value to which the weight is applied to thereby output an image of which an edge is enhanced.

摘要翻译： 提供了一种用于提高图像的清晰度的装置，其可以通过根据二维（2D）高通滤波值施加有效权重来防止图像的边缘增强处理中的图像失真的发生 图片。 所述装置可以包括：输出用于输入图像的像素的亮度值的高频元素值的2D高通滤波器; 权重生成单元，生成根据高频元素值的大小而变化的权重; 加权单元，将所述权重应用于所述高频元素值; 以及边缘增强图像生成单元，对输入图像的像素的亮度值加上加权的高频单元值，从而输出边缘增强的图像。