how to increase a pixel value

2013 1 18
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I have an M X N image named H. How can I increase the value of a particular pixel? Please help

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Algorithms Analyst
Algorithms Analyst 2013-1-18

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you need to find the location of that pixel and then need some operations. like
[Rows Cols NumberofColorChannels]=size(H) for i=1:Rows for j=1:Cols
%Now find the location e.g you want to change the vale at 3 row and 3col initially its 2 then u can
if i==3 && j==3 do it further

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Vishnu M S
Vishnu M S 2013-1-18
How can I increase the pixel value at a particular location?(say, I need to find the pixel at 5th row and 7th column and I need to increase that pixel value.)
Walter Roberson
Walter Roberson 2013-1-18
H(5,7) = H(5,7) + 1; %for example

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