Practice with the tasks of image processing in Matlab

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Practice with the tasks of image processing in Matlab

The book "The Practice of the tasks of image processing in Matlab," was written in 2008. The book is available in the publication Exit.

Praktyka przetwarzania obrazów z zadaniami w programie Matlab

Below are the materials for the book in polish: the whole table of contents in pdf and supplemental materials containing many files which have their direct application in Matlab.

Pliki do pobrania

Examples of tasks for the book in Polish

Zadania z przetwarzania obrazów

1-5 6-10 11-15 16-20 21-25 26-30 31-35 36-40 41-45 46-50 51-55 56-60 61-65 66-70 71-75 76-80

Rozwiązanie zadania nr 41

Zaznacz wszystko

L1a=imread('Clock.tif');
L1a=double(L1a)/255;
L1b=imread('Airplane.tif');
L1b=double(L1b)/255;
figure; imshow([L1a,L1b])
for i=1:20
    L2=L1a*(i/20)+L1b*(1-i/20);
    Lx(1:size(L1a,1),1:size(L1a,2),1,i)=L2;
    imshow(L2)
    pause
end
mov=immovie(Lx*255,gray(256));
movie2avi(mov,'c:\film.avi');

Rozwiązanie zadania nr 42

Zaznacz wszystko

L1=imread('Airplane.tif');
L2=cat(3,L1,L1,L1);
for i=1:10
    imshow(L2)
    [x,y,k]=ginput(1);
    x=round(x); y=round(y);
    for z=1:10
    L2(y+z,x+z,1)=255;
    L2(y+z,x+z,2:3)=0;
    L2(y-z,x-z,1)=255;
    L2(y-z,x-z,2:3)=0;
    L2(y+z,x-z,1)=255;
    L2(y+z,x-z,2:3)=0;
    L2(y-z,x+z,1)=255;
    L2(y-z,x+z,2:3)=0;
    end
end

Rozwiązanie zadania nr 43

Zaznacz wszystko

L1 = ones([300 300]);
L1 = cat(3, L1, L1, L1); 
M3=size(L1,1)/3;
L1(1:end, M3:M3+4,:)=0;
L1(1:end, M3*2:M3*2+4,:)=0;
L1(M3:M3+4, 1:end, :)=0;
L1(M3*2:(M3*2)+4, 1:end, :)=0;
    figure; imshow(L1); hold on
for i=1:4
    [x,y,k]=ginput(1);
        text(x,y,'O','FontSize',30,'Color',[0 1 0])
    [x,y,k]=ginput(1);
        text(x,y,'X','FontSize',30,'Color',[0 0 1])
end
    [x,y,k]=ginput(1);
        text(x,y,'O','FontSize',30,'Color',[1 0 0])

Rozwiązanie zadania nr 44

Zaznacz wszystko

t1=0:(1/100):1;
L1=t1'*t1;
t2=0:(1/19):1;
L2=t2'*t2;
L3=cat(3,L1,zeros(size(L1)),zeros(size(L1)));
L3(21:40,21:40,:)=cat(3,L2,L2,L2);
figure; imshow(L3)

Rozwiązanie zadania nr 45

Zaznacz wszystko

[L1]=imread('Clock.tif');
figure; imshow(L1);
L2=zeros(size(L1)); L2([1:40,end-40:end],:)=1;
L2(:,[1:40,end-40:end])=1;
figure; imshow(L2)
h = fspecial('prewitt');
L3 = roifilt2(h,L1,L2);
figure; imshow(L3);

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Robert Koprowski

Image processing and analysis

Practice with the tasks of image processing in Matlab

Pliki do pobrania

Zadania z przetwarzania obrazów