Image =imread("images/foto.png");
filters  = get_instagram_filters();
selectedFilterIndex = 2;
f=filters{selectedFilterIndex};


R=Image(:,:,1);
G=Image(:,:,2);
B=Image(:,:,3);

R1=f(:,:,1);
G1=f(:,:,2);
B1=f(:,:,3);

for ii=1:size(R,1)

    for jj=1:size(R,2)
y(ii,jj) = double(65.481/255*R(ii,jj)) + double(128.553/255*G(ii,jj)) + double(24.966/255*B(ii,jj));
cb(ii,jj) = -double(37.797/255*R(ii,jj)) -double(74.203/255*G(ii,jj)) + double(112/255*B(ii,jj)) ;
cr(ii,jj) = double(112/255*R(ii,jj)) -double(93.786/255*G(ii,jj)) -double(18.214/255*B(ii,jj));

endfor
endfor
for ii=1:size(R1,1)

    for jj=1:size(R1,2)
yf(ii,jj) = double(65.481/255*R1(ii,jj)) + double(128.553/255*G1(ii,jj)) + double(24.966/255*B1(ii,jj));
cbf(ii,jj) = -double(37.797/255*R1(ii,jj)) -double(74.203/255*G1(ii,jj)) + double(112/255*B1(ii,jj)) ;
crf(ii,jj) = double(112/255*R1(ii,jj)) -double(93.786/255*G1(ii,jj)) -double(18.214/255*B1(ii,jj));
endfor
endfor

y=y+ 16;
cb=cb+128;
cr=cr+128;

yf=yf+ 16;
cbf=cbf+128;
crf=crf+128;


ycbcrImage=uint8(cat(3,y,cb,cr));
ycbcrFil=uint8(cat(3,yf,cbf,crf));

figure,imshow(ycbcrImage);
y=ycbcrImage(:,:,1);
cb=ycbcrImage(:,:,2);
cr=ycbcrImage(:,:,3);

for ii=1:size(R,1)

    for jj=1:size(R,2)
   r(ii,jj) = y(ii,jj) + 1.402 *(cr(ii,jj) -128);

    g(ii,jj) = y(ii,jj) -0.34414 *(cb(ii,jj) - 128) -0.71414*(cr(ii,jj) - 128);

    b(ii,jj) = y(ii,jj) + 1.772 *(cb(ii,jj) - 128) ;


endfor
endfor

rgbImage=uint8(cat(3,r,g,b));
figure,imshow(rgbImage);