-
公开(公告)号：KR1020080056969A
公开(公告)日：2008-06-24
申请号：KR1020060130218
申请日：2006-12-19
Applicant: 삼성전자주식회사
CPC classification number: H04N1/6027 , G06T5/007 , G06T2207/20016
Abstract: An apparatus and a method for enhancing picture quality of a color image by using Laplacian pyramid are provided to carry out brightness improvement of total image illumination by using a low resolution approximate image and to carry out local brightness contrast ratio improvement by using a band pass image, in order to increase saturation proper to the brightness value of the input image and to improve picture quality. A picture quality enhancing method comprises the steps of; extracting light and darkness data from a color image data(S20); generating low resolution image data and band pass image data, by using Laplacian pyramid from the light and darkness data; generating the global brightness improved image data by receiving the low resolution image data(S40); generating local contrast ratio improved image data by receiving the band pass image data(S50); and combining the global brightness improved image data with the local contrast ratio improved image data to generate the improved light and darkness data(S60).
Abstract translation: 提供一种通过使用拉普拉斯金字塔提高彩色图像的图像质量的装置和方法，以通过使用低分辨率近似图像来实现全图像照明的亮度改善，并且通过使用带通图像来实现局部亮度对比度改善 ，以增加适合于输入图像的亮度值的饱和度并提高图像质量。 图像质量增强方法包括以下步骤： 从彩色图像数据中提取亮度和暗度数据（S20）; 通过使用拉普拉斯金字塔从亮度和黑暗数据生成低分辨率图像数据和带通图像数据; 通过接收低分辨率图像数据生成全局亮度改善的图像数据（S40）; 通过接收带通图像数据产生局部对比度改善图像数据（S50）; 并且将全局亮度改善的图像数据与局部对比度比改善的图像数据组合以产生改进的亮度和黑暗数据（S60）。
-
公开(公告)号：KR1020110048922A
公开(公告)日：2011-05-12
申请号：KR1020090105681
申请日：2009-11-03
Applicant: 삼성전자주식회사 , 한양대학교 산학협력단
Abstract: PURPOSE: A method for reducing noise using an integrated noise modeling method is provided to perform a noise filtering operation at a bayer domain. CONSTITUTION: An image photographing device establishes a plurality of noise models of bayer domain signals which are transmitted from an image sensor(S100). The image photographing device determines an integrated noise level based on the set noise models(S200). The image photographing device filters frame data of the bayer domain based on the set noise models(S300).
Abstract translation: 目的：提供使用综合噪声建模方法降低噪声的方法，以在拜耳域执行噪声滤波操作。 构成：图像拍摄装置建立从图像传感器发送的拜耳域信号的多个噪声模型（S100）。 图像摄影装置基于设定的噪声模型来确定积分噪声电平（S200）。 图像拍摄装置基于设定的噪声模型来过滤拜耳域的帧数据（S300）。
-
公开(公告)号：KR100925419B1
公开(公告)日：2009-11-06
申请号：KR1020060130218
申请日：2006-12-19
Applicant: 삼성전자주식회사
CPC classification number: H04N1/6027 , G06T5/007 , G06T2207/20016
Abstract: 여기에 개시된 본 발명의 화질 개선 방법은 상기 컬러 영상의 데이터로부터 명암데이터를 추출하는 제1 단계; 상기 명암데이터로부터 라플라시안 피라미드를 이용하여 저해상도 영상데이터와 대역통과 영상데이터를 생성하는 제2 단계; 상기 저해상도 영상데이터를 입력받아 상기 명암데이터의 전체 밝기를 개선한 글로벌밝기개선 영상데이터를 생성하는 제3 단계; 상기 대역통과 영상데이터를 입력받아 국부적으로 명암데이터의 명암도를 개선한 로컬명암비개선 영상데이터를 생성하는 제4 단계; 그리고 상기 글로벌밝기개선 영상데이터와 상기 로컬명암비개선 영상데이터를 결합하여 개선된 명암데이터를 생성하는 제5 단계를 포함한다.
-
-
Search Results
3
records
(took 0.046 seconds)
