图像的归一化

Question

我有一个带有uint8类的大小为(2048X3072X3)的RGB图像，我想对RGB图像的绿色和红色通道进行归一化。我写了以下代码：

      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

但是在归一化之后，图像x的维度是6291456x1，而不是2048X3072。

谁能告诉我怎样才能得到尺寸为2048X3072的归一化图像？

Answer 1

试试这个：

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