How do I move an image into a cell?
显示 更早的评论
I built a 1*5 cell named N and need to copy an image (img)matrix into each entry in it what should I do? This is what I came up with but it doesn't work....
I'm trying to avoid for loops so my code will be faster.
function newImgs = imresizenew(img,scale) %scale is an array contains the scaling factors to be upplied originaly an entry in a 16*1 cell
N = (cell(length(scale)-1,1))'; %scale is a 1*6 vector array
N(:,:) = mat2cell(img,size(img),1); %Now every entry in N must contain img, but it fails
newImgs =cellfun(@imresize,N,scale,'UniformOutput', false); %newImgs must contain the new resized imgs
end
采纳的回答
Guillaume
2019-3-11
If I understood correctly,
function newImgs = imresizenew(img, scale)
newImgs = arrayfun(@(s) imresize(img, s), scale, 'UniformOutput', false);
end
Note that while more compact and more reliable than loops, arrayfun and cellfun are often slower (due to the extra cost of an anonymous function call). In any case, they're just loops in disguise, so using them "to avoid for loops so my code will be faster" won't work.
The loop equivalent:
function newImgs = imresizenew(img, scale)
newImgs = cell(size(scale));
for scaleiter = 1:numel(scale)
newImgs{scaleiter} = imresize(img, scale(scaleiter));
end
end
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Simulink 3D Animation 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
