Cropping 3D image and save into mat files

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Fadhurrahman 2022-1-17

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1630290-cropping-3d-image-and-save-into-mat-files

评论： Fadhurrahman 2022-1-18

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Greetings,

So i want to crop a 3D images with 5x5x8 and save every single 5x5x8 into a mat files. the output has a 5x5x8 in it.

is there any reference to do it?

here is my code

Thank you very much for helping.

clear
close all
clc
R1 = geotiffread('1.tif'); 
R2 = geotiffread('2.tif'); 
R3 = geotiffread('3.tif'); 
R4 = geotiffread('4.tif'); 
R5 = geotiffread('5.tif'); 
R6 = geotiffread('6.tif'); 
R7 = geotiffread('7.tif'); 
R8 = geotiffread('8.tif'); 
stackb = cat(3,R1, R2, R3, R4, R5, R6, R7,R8)
% stackc=cat(3,R1, R2, R3, R4, R5, R6, R7)
c = images.spatialref.Cuboid([1,5],[1,5],[1,8]);
croppedVolume = imcrop3(stackc,c);
[rows, columns, numberOfColorChannels] = size(stackb);
N = rows;
for i = 1:N
    Icropped{i} = imcrop3(stackb,c);
end
save(name, 'Icropped')

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KSSV 2022-1-18

They are in a cell, you can extract them by using {}.

Icroped{1}, Icropped{2},..etc.

Fadhurrahman 2022-1-18

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@KSSV thank you. i have a new problem for saving it

so i want to save these "DCrop" for every iteration. but in the end it only save a single file

here's the code

N = 1000;
 name=sprintf('a_%3d')
 
 for i = 1:N
stackc = squeeze(stackc);
targetSize = [5 5 7];
win = randomCropWindow3d(size(stackc),targetSize);
Dcrop = imcrop3(stackc,win);
i=i+1
 end
 save(name,"Dcrop")