grouping the pixel pairs

7 次查看（过去 30 天）
uthara ravi
uthara ravi 2015-12-30
评论： Image Analyst 2015-12-30
I have the code for grouping the pair of pixel. The code executed correctly. Please help me to reverse the same to get the original pixel matrix of the image
%grouping the pixel pairs
img=imread('cameraman.tif');
[rows,cols]=size(img);
[x,y]=ndgrid(1:rows,1:2:cols);
ind=sub2ind(size(img),x,y);
ind_shift=sub2ind(size(img),x,y+1);
pixels1=img(ind);
pixels2=img(ind_shift);
pixels=[pixels1(:) pixels2(:)];
[row1,cols1]=size(pixels);

请先登录，再回答此问题。

回答（1 个）

Image Analyst
Image Analyst 2015-12-30
The function to reverse sub2ind() is called ind2sub(). Give it a try yourself first.
  1 个评论
Image Analyst
Image Analyst 2015-12-30
By the way, attached is an example where I scramble an image matrix, in case you might be interested.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Image Arithmetic 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by