Convesion vector Index exceeds array bounds - matlab












1














I build some program in Matlab for "Histograma matching".

When I'm trying to implement the function "conVector" I get the error
"Index exceeds array bounds." anyone can help me with this error?



Here is my full code. Thank you!



function [newImage] = histShape (srcimg,destimg)
%find the histogram of the image

src = imgHist(srcimg);
dest = imgHist(destimg);

sna = normalizationHist(src);
dna = normalizationHist(dest);

conVector(sna,dna);

end

function [Hist] = imgHist (img)
[Rows,Cols] = size(img);
Hist = zeros(1,256);
for i=1:Rows
for j=1:Cols
Hist(img(i,j)+1)=Hist(img(i,j)+1)+1;
end
end

end


function [Ahist] = normalizationHist (hist)
[Rows,Cols] = size(hist);
Ahist = hist;
for i=2:256
Ahist(i)=Ahist(i-1)+hist(i);
end

Ahist = Ahist/(Rows*Cols);

end

function [cv] = conVector(SNA,DNA)
cv=zeros(1,257);
s = 1;
d = 1;
while s<=256
if DNA(d)<SNA(s)
d = d+1;
else
cv(s)=d;
s = s+1;

end
end
end









share|improve this question
























  • In the conVector function it looks like if DNA(end) >= SNA(end) you will keep incrementing d until it moves past the array bounds.
    – Matt
    Nov 22 at 18:10
















1














I build some program in Matlab for "Histograma matching".

When I'm trying to implement the function "conVector" I get the error
"Index exceeds array bounds." anyone can help me with this error?



Here is my full code. Thank you!



function [newImage] = histShape (srcimg,destimg)
%find the histogram of the image

src = imgHist(srcimg);
dest = imgHist(destimg);

sna = normalizationHist(src);
dna = normalizationHist(dest);

conVector(sna,dna);

end

function [Hist] = imgHist (img)
[Rows,Cols] = size(img);
Hist = zeros(1,256);
for i=1:Rows
for j=1:Cols
Hist(img(i,j)+1)=Hist(img(i,j)+1)+1;
end
end

end


function [Ahist] = normalizationHist (hist)
[Rows,Cols] = size(hist);
Ahist = hist;
for i=2:256
Ahist(i)=Ahist(i-1)+hist(i);
end

Ahist = Ahist/(Rows*Cols);

end

function [cv] = conVector(SNA,DNA)
cv=zeros(1,257);
s = 1;
d = 1;
while s<=256
if DNA(d)<SNA(s)
d = d+1;
else
cv(s)=d;
s = s+1;

end
end
end









share|improve this question
























  • In the conVector function it looks like if DNA(end) >= SNA(end) you will keep incrementing d until it moves past the array bounds.
    – Matt
    Nov 22 at 18:10














1












1








1







I build some program in Matlab for "Histograma matching".

When I'm trying to implement the function "conVector" I get the error
"Index exceeds array bounds." anyone can help me with this error?



Here is my full code. Thank you!



function [newImage] = histShape (srcimg,destimg)
%find the histogram of the image

src = imgHist(srcimg);
dest = imgHist(destimg);

sna = normalizationHist(src);
dna = normalizationHist(dest);

conVector(sna,dna);

end

function [Hist] = imgHist (img)
[Rows,Cols] = size(img);
Hist = zeros(1,256);
for i=1:Rows
for j=1:Cols
Hist(img(i,j)+1)=Hist(img(i,j)+1)+1;
end
end

end


function [Ahist] = normalizationHist (hist)
[Rows,Cols] = size(hist);
Ahist = hist;
for i=2:256
Ahist(i)=Ahist(i-1)+hist(i);
end

Ahist = Ahist/(Rows*Cols);

end

function [cv] = conVector(SNA,DNA)
cv=zeros(1,257);
s = 1;
d = 1;
while s<=256
if DNA(d)<SNA(s)
d = d+1;
else
cv(s)=d;
s = s+1;

end
end
end









share|improve this question















I build some program in Matlab for "Histograma matching".

When I'm trying to implement the function "conVector" I get the error
"Index exceeds array bounds." anyone can help me with this error?



Here is my full code. Thank you!



function [newImage] = histShape (srcimg,destimg)
%find the histogram of the image

src = imgHist(srcimg);
dest = imgHist(destimg);

sna = normalizationHist(src);
dna = normalizationHist(dest);

conVector(sna,dna);

end

function [Hist] = imgHist (img)
[Rows,Cols] = size(img);
Hist = zeros(1,256);
for i=1:Rows
for j=1:Cols
Hist(img(i,j)+1)=Hist(img(i,j)+1)+1;
end
end

end


function [Ahist] = normalizationHist (hist)
[Rows,Cols] = size(hist);
Ahist = hist;
for i=2:256
Ahist(i)=Ahist(i-1)+hist(i);
end

Ahist = Ahist/(Rows*Cols);

end

function [cv] = conVector(SNA,DNA)
cv=zeros(1,257);
s = 1;
d = 1;
while s<=256
if DNA(d)<SNA(s)
d = d+1;
else
cv(s)=d;
s = s+1;

end
end
end






matlab






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edited Nov 22 at 18:00









EBH

9,15832147




9,15832147










asked Nov 22 at 17:54









user2733981

61




61












  • In the conVector function it looks like if DNA(end) >= SNA(end) you will keep incrementing d until it moves past the array bounds.
    – Matt
    Nov 22 at 18:10


















  • In the conVector function it looks like if DNA(end) >= SNA(end) you will keep incrementing d until it moves past the array bounds.
    – Matt
    Nov 22 at 18:10
















In the conVector function it looks like if DNA(end) >= SNA(end) you will keep incrementing d until it moves past the array bounds.
– Matt
Nov 22 at 18:10




In the conVector function it looks like if DNA(end) >= SNA(end) you will keep incrementing d until it moves past the array bounds.
– Matt
Nov 22 at 18:10












1 Answer
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If all values in DNA(d:end) are smaller then the value in SNA(s) than the loop keep adding 1 to d but not to s, and finally goes out of bound because it conditioned only by s.



I guess you should either take the s = s+1 out of the inner condition, so it will be executed on every iteration, or add a condition on d to the loop, or convert it to a for loop.






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    0














    If all values in DNA(d:end) are smaller then the value in SNA(s) than the loop keep adding 1 to d but not to s, and finally goes out of bound because it conditioned only by s.



    I guess you should either take the s = s+1 out of the inner condition, so it will be executed on every iteration, or add a condition on d to the loop, or convert it to a for loop.






    share|improve this answer




























      0














      If all values in DNA(d:end) are smaller then the value in SNA(s) than the loop keep adding 1 to d but not to s, and finally goes out of bound because it conditioned only by s.



      I guess you should either take the s = s+1 out of the inner condition, so it will be executed on every iteration, or add a condition on d to the loop, or convert it to a for loop.






      share|improve this answer


























        0












        0








        0






        If all values in DNA(d:end) are smaller then the value in SNA(s) than the loop keep adding 1 to d but not to s, and finally goes out of bound because it conditioned only by s.



        I guess you should either take the s = s+1 out of the inner condition, so it will be executed on every iteration, or add a condition on d to the loop, or convert it to a for loop.






        share|improve this answer














        If all values in DNA(d:end) are smaller then the value in SNA(s) than the loop keep adding 1 to d but not to s, and finally goes out of bound because it conditioned only by s.



        I guess you should either take the s = s+1 out of the inner condition, so it will be executed on every iteration, or add a condition on d to the loop, or convert it to a for loop.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Nov 22 at 18:16

























        answered Nov 22 at 18:09









        EBH

        9,15832147




        9,15832147






























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