I have this code that detects vegetation from a picture. i want to remove it. how should i do that?

Image1 = im2double(imread('image\8.jpg'));
g=rgb2gray(Image1);
[row column page] = size(Image1)
mask = Image1(:,:,2) > Image1(:,:,1) & Image1(:,:,2) > Image1(:,:,3);
Image2 = Image1 .* mask(:,:,[1 1 1]);
figure,imshow(Image2);
title('light green');
mask = Image2(:,:,2) + 20 > Image2(:,:,1) & Image2(:,:,2) + 20 > Image2(:,:,3);
Image3 = Image2 .* mask(:,:,[1 1 1]);
figure,imshow(Image3);
title('dark green');

Answer 1

[Image Analyst]

See my color segmentation demos in my File Exchange http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862

Or else search on the tag "leaf".

Or else use imseggeodesic(). Look up examples in the help for it.

[charuleelaa vanilavarasu]

i tried your demo. For some reason it's not working for my own images. it does not ask me the option to choose the color but works for the demo

[Image Analyst]

Set a breakpoint on the call to menu(). Chances are you clicked somewhere and that popup dialog box then went underneath whatever you clicked on.

Answer 2

[Walter Roberson]

Remember when you im2double() you change the data to the range 0 to 1. Your value +20 suggests you are still thinking in terms of uint8 values in the range 0 to 255. If so then the corresponding increment in 0 to 1 range would be 20/255 rather than 20.