圖像的規範化

Question

我有uint8類的大小爲（2048X3072X3）的RGB圖像，我想規格化RGB圖像的綠色和紅色通道。我寫了下面的代碼：

 Image_rgb=imread('RGB.jpg'); %Reading RGB image 
     Image_red = Image_rgb(:,:,1); %Reading R channel of image 
     Image_green = Image_rgb(:,:,2); %Reading G channel of image 
     x = double(Image_green(:)); 
     m = mean(x); 
     s = std(x); 
     x = (x - m)/s; % normalization of green channel 

但經過規範化的圖像x是尺寸6291456x1的而不是2048X3072。

任何人都可以請告訴我如何獲得2048X3072尺寸的標準化圖像？

Answer 1

試試這個：

x = double(Image_green); 
    m = mean(x(:)); 
    s = std(x(:)); 
    x = (x - m)/s; % normalization of green channel