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Visualization.m
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Visualization.m
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load('mnist_all.mat')
digit = input('Enter Class Label: ');
if digit>=0 && digit<=9
testcase = input('Enter Item Number: ');
if digit==0
sz = size(train0);
if testcase<=sz(1)
t = train0(testcase,:);
shaped = reshape(t,[28,28]);
clear t
shaped= shaped';
level = graythresh(shaped);
img = im2bw(shaped,level);
imshow(img)
clear shaped
else
disp('Invalid Item Number')
end
elseif digit==1
sz = size(train1);
if testcase<=sz(1)
t = train1(testcase,:);
shaped = reshape(t,[28,28]);
clear t
shaped= shaped';
level = graythresh(shaped);
img = im2bw(shaped,level);
imshow(img)
clear shaped
else
disp('Invalid Item Number')
end
elseif digit==2
sz = size(train2);
if testcase<=sz(1)
t = train2(testcase,:);
shaped = reshape(t,[28,28]);
clear t
shaped= shaped';
level = graythresh(shaped);
img = im2bw(shaped,level);
imshow(img)
clear shaped
else
disp('Invalid Item Number')
end
elseif digit==3
sz = size(train3);
if testcase<=sz(1)
t = train3(testcase,:);
shaped = reshape(t,[28,28]);
clear t
shaped= shaped';
level = graythresh(shaped);
img = im2bw(shaped,level);
imshow(img)
clear shaped
else
disp('Invalid Item Number')
end
elseif digit==4
sz = size(train4);
if testcase<=sz(1)
t = train4(testcase,:);
shaped = reshape(t,[28,28]);
clear t
shaped= shaped';
level = graythresh(shaped);
img = im2bw(shaped,level);
imshow(img)
clear shaped
else
disp('Invalid Item Number')
end
elseif digit==5
sz = size(train5);
if testcase<=sz(1)
t = train5(testcase,:);
shaped = reshape(t,[28,28]);
clear t
shaped= shaped';
level = graythresh(shaped);
img = im2bw(shaped,level);
imshow(img)
clear shaped
else
disp('Invalid Item Number')
end
elseif digit==6
sz = size(train6);
if testcase<=sz(1)
t = train6(testcase,:);
shaped = reshape(t,[28,28]);
clear t
shaped= shaped';
level = graythresh(shaped);
img = im2bw(shaped,level);
imshow(img)
clear shaped
else
disp('Invalid Item Number')
end
elseif digit==7
sz = size(train7);
if testcase<=sz(1)
t = train7(testcase,:);
shaped = reshape(t,[28,28]);
clear t
shaped= shaped';
level = graythresh(shaped);
img = im2bw(shaped,level);
imshow(img)
clear shaped
else
disp('Invalid Item Number')
end
elseif digit==8
sz = size(train8);
if testcase<=sz(1)
t = train8(testcase,:);
shaped = reshape(t,[28,28]);
clear t
shaped= shaped';
level = graythresh(shaped);
img = im2bw(shaped,level);
imshow(img)
clear shaped
else
disp('Invalid Item Number')
end
elseif digit==9
sz = size(train9);
if testcase<=sz(1)
t = train9(testcase,:);
shaped = reshape(t,[28,28]);
clear t
shaped= shaped';
level = graythresh(shaped);
img = im2bw(shaped,level);
imshow(img)
clear shaped
else
disp('Invalid Item Number')
end
end
else
disp('Invalid Class Label.')
end
clear sz
clear level
clear img
clear digit
clear testcase