Question

我想从内存中读取一系列大小为256 * 256的灰度图像并存储在一个数组中。后来我想从数组中访问每个图像的各个像素。我怎么能这样做？

Answer 1

你的意思是：

NumImages = 20;

% reading
for Ind = 1:NumImages
    % replace by your read image function
    ImgArray(:, :, Ind) = rand(256, 256);
end

% accessing the pixel in place (1, 2) of the 3rd img in array
SinglePixel = ImgArray(1, 2, 3);

Answer 2

假设您有6个256x256图像，由'IM1.jpg'命名为'IM6.jpg'，位于文件夹'C：\ ImagesSeq \'中。现在你想把它们读成Matlab。

IMArray=zeros(256,256,6); % preallocate the memonry for your image array 

for i=1:6 % you can replace 6 by any number you need
    Filename=sprintf('C:/ImagesSeq/IM%d.jpg',i);
    IMArray(:,:,i)=imread(Filename);
end

% you can now accessing the pixel as last answer shows by indexing the Image array
SinglePixel = IMArray(1, 2, 3);

我希望这就是你的意思.... :)

如何读取图像序列以及如何在matlab中访问单个像素

2 个答案: