Laplacian Image Pyramid Reconstruction

Question

Algorithms Analyst 2014-4-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/126122-laplacian-image-pyramid-reconstruction

编辑： Walter Roberson 2020-6-15

采纳的回答： Zhuofan Zheng

在 MATLAB Online 中打开

Hi all

I am generating a Laplacian pyramid based on Gaussian Pyramid.

img=imread('lena.bmp'); 512*512 size
pyr=cell(1,4);
pyr{1}=img;
pyr=impyramid(img,'reduce');
for p=2:4
pyr{p}=impyramid(pyr{p-1},'reduce'); %% this makes image hierarchy of 4 layers
end
%laplacian pyramid generation
lap=pyr{1}-impyramid(pyr{2},'expand');

gettting error to generate first laplacian image layer, because expansion of second gaussian layer size is less than the first layer of gaussian pyramid. How can I achieve that?

Thanks in advance