43 lines
885 B
Mathematica
43 lines
885 B
Mathematica
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clear;
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close all;
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taille_ecran = get(0,'ScreenSize');
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L = taille_ecran(3);
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H = taille_ecran(4);
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load donnees;
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figure('Name','Tomographie : resolution par retroprojection','Position',[0.2*L,0,0.8*L,0.5*H]);
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% Affichage de l'image originale :
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subplot(1,3,1);
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imagesc(I);
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colormap gray;
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axis off;
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axis equal;
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title('Image d''origine','FontSize',20);
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% Affichage du sinogramme :
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subplot(1,3,2);
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imagesc(sinogramme);
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colormap gray;
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axis off;
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axis equal;
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title('Sinogramme','FontSize',20);
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drawnow;
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% filtrage du sinogramme :
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sinogramme = filtrage_sinogramme(sinogramme);
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% Rétroprojection :
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f = retroprojection(sinogramme,theta,nb_rayons,nb_lignes,nb_colonnes);
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% Affichage de la solution :
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subplot(1,3,3);
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imagesc(f);
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colormap gray;
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axis off;
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axis equal;
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title('Resultat de la tomographie','FontSize',20);
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imwrite(ind2rgb(im2uint8(mat2gray(f)), gray(256)), "saves/exo2_rick.png")
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