I want to interpolate extracted ROI. Please help me with coding.
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p= imread('knee.jpg');
figure;
imshow(p);
img = imcrop;
k=imshow(img);
imwrite(k,'knee2.jpg');
z=imread('knee2.jpg');
figure;
[x,y]=meshgrid(1:256,1:256);
a=2;
for i=1:256;
for j=1:256;
x1(i,j)=a*x(i,j);
y1(i,j)=y(i,j)/a;
end
end
% Do the interpolation
z1=interp2(x,y,z,x1,y1,'bilinear');
imshow(z1);
4 Commenti
John D'Errico
il 19 Gen 2016
Linear interpolation will not improve image quality. That only works in the TV shows, where you can blow up a single pixel into a readable picture of a license plate. Any problems that were in the original will still be there, with sometimes new artifacts introduced.
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