公开(公告)号：EP1615168A1

公开(公告)日：2006-01-11

申请号：EP04425503.2

申请日：2004-07-09

Applicant: STMicroelectronics S.r.l.

Inventor： Spampinato, Giuseppe ,  Bruna, Arcagenlo Ranieri ,  Sanguedolce, Giuseppe

IPC: G06T3/40

CPC classification number: G06T3/4084

Abstract: A method of color interpolation of pixels of an image detected by a digital color sensor comprises the steps of interpolating separately the pixels belonging to each of a plurality of subdivision channels of the pixels of the detected image respectively for primary red-green-blue colors (RGB) or for base hues for generating weighted values relating to either said primary colors or to said base hues for each pixel of the image to be output.
This method generates images with enhanced details because it comprises the steps of defining wavelet coefficients of the wavelet sub-band LL depending on the values of the pixel of each channel; and estimating for each channel wavelet coefficients of the other wavelet sub-bands HL, LH and HH of the image to be output in function of said wavelet coefficients of the wavelet sub-band LL of the image to be output.

Abstract translation: 由数字颜色传感器检测的图像的像素的颜色插值的方法包括以下步骤：分别对属于检测图像的像素的多个细分通道中的每一个的像素分别插入用于初级红绿蓝色（ RGB）或用于生成与要输出的图像的每个像素相关的所述原色或所述基色调的加权值的基色调。 该方法产生具有增强细节的图像，因为它包括根据每个通道的像素的值来定义小波子带LL的小波系数的步骤; 并且根据要输出的图像的小波子带LL的所述小波系数的函数，估计要输出的图像的其他小波子带HL，LH和HH的每个信道小波系数。