# I have written the code to convert the RGB to different color ,in the command window result is correct but the resulting image was not displayed

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sudarshan r on 1 Mar 2017
Commented: Vandana Rajan on 8 Mar 2017
clc
close all;
clear all;
[fname path]=uigetfile('*.*','insert the pic');
imshow(a)
w=0;d=0;z=0;
b=zeros(size(a,1),size(a,2),size(a,3));
for i=1:size(a,1)
for j=1:size(a,2)
for k=1:size(a,3)
if a(i,j,k)<=80
b(i,j,k)=34;
w=w+1;
elseif a(i,j,k)<=120
b(i,j,k)=80;
d=d+1;
elseif a(i,j,k)<=255
b(i,j,k)=27;
z=z+1;
end
end
end
end
figure;
imshow(b);

Vandana Rajan on 1 Mar 2017
Hi,
It seems that there are some problems with the conditions you are giving.
a(i,j,k)<=120 includes all values below 120, which includes values below 80 too. May be you are thinking of values between 81 and 120? In that case you need to give 80<a(i,j,k)<=120. Similarly for a(i,j,k)<=255.
sudarshan r on 7 Mar 2017
hi,vandana rajan the IF condition you have written in the matlab as 80<a(i,j,k)<=120 is not accepted, it only allows a(i,j,k)<=120 as this way, writing the scalar value on the left side is illegal please find this.
Vandana Rajan on 8 Mar 2017
yeah. for that you need to write (a(i,j,k)>80 && a(i,j,k)<=120). What I provided above was the logic and not the exact syntax.