grayscale with color indices not matching up

im currently working on a grayscale picture with color save by ginput. Im having issues with my left indices not being the same size with the right. Can someone help me out

RGB = imread('bird.jpg');

hsvImage=rgb2hsv(RGB);

imshow(RGB)

[x, y] = ginput(1);

row = round(y);

column = round(x);

%Average Hue

AH = hsvImage(row,column, 1);

%input tolerance

TOL=AH*.1;

%Tolerance minimum

MinH=AH-AH*TOL/100;

%Tolerance max

MaxH=AH+AH*TOL/100;

[row,column]=size(RGB);

for i=1:row

for j=1:column

if (hsvImage(i,j,1)>=MinH)||(hsvImage(i,j,1)<=MaxH)

newimage(i,j,1)=RGB(:,:,1);

newimage(i,j,1)=RGB(:,:,2);

newimage(i,j,1)=RGB(:,:,3);

else

newimage(i,j,1) = (RGB(:,:,1)* 0.2989 + RGB(:,:,2)* 0.5870 + ...

RGB(:,:,3)*0.1140 );

newimage(:,:,2) = newimage(:,:,1);

newimage(:,:,3) = newimage(:,:,1);

end

end

end

Answer 1

[Image Analyst]

No, do not do this:

[row,column]=size(RGB);

do this instead:

[row, column, numberOfColorChannels] = size(RGB);

Why? See Steve's blog:

Too much information about the size function | Steve on Image Processing

[luke schneider]

that makes sense now, another issue unfortunatley is not storing a color i select with the ginput now.

[Image Analyst]

I could explain it, if you explain it first. Like did you use impixel()?