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How do I read images from a folder and save it in a folder ( all in a loop)

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Mansell Teh
Mansell Teh 2016-10-1
评论： Walter Roberson 2016-10-1
clear all
clc
%Detect objects using Viola-Jones Algorithm
imgdir = 'C:\Users\Lewis\Documents\MATLAB\testingimage';
DestDir = 'C:\Users\Lewis\Documents\MATLAB\violajones\croppedimage';
%To detect Face
FDetect = vision.CascadeObjectDetector;
images = imgdir('*.jpg');
numfiles = length(images);
myimage = cell(1,numfiles);
for k = 1:numfiles
myimage{k} = imread(images(k).name);
%Returns Bounding Box values based on number of objects
BB = step(FDetect,myimage{k});
for i = 1:size(BB,1)
rectangle('Position',BB(i,:),'LineWidth',5,'LineStyle','-','EdgeColor','r');
cropimage = imcrop(myimage{k},BB(i,:));
end
filename = ['testingimage' ,num2str(k),'.jpg'];
save(filename);
end
This is what I did, but I think there is some problem with it.

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采纳的回答

Walter Roberson
Walter Roberson 2016-10-1
images = dir( fullfile(imgdir, '*.jpg') );
and
myimage{k} = imread( fullfile( imgdir, images(k).name) );
and instead of
save(filename);
use
imwrite(croppedimage, fullfile(DestDir, filename));
  2 个评论
Walter Roberson
Walter Roberson 2016-10-1
To use as output the original name but with a suffix, then:
name_suffix = '(01)';
[in_dir, in_basename, in_ext] = fileparts( images(k).name );
filename = [in_basename name_suffix in_ext];
instead of
filename = ['testingimage' ,num2str(k),'.jpg'];

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