Hello ; this is my simple code for leaf disease , I find the disease on leaf. I just want to show the disease and remove other noises, could you help me guys? thanks!

close all;
clear all;
pic = imread('LEAF_0334.jpg');
I = imadjust(pic,stretchlim(pic));
g_im = rgb2gray(I);
eg = edge(g_im,'canny',0.3);
eg_1 = bwareaopen(eg,300);
bw = im2bw(eg);
se = strel('disk',3);
bw = imdilate(bw,se);
bw2 = imfill(bw,'holes');
r = bwlabel(bw2);
subplot(3,3,1),imshow(pic),title('original');
subplot(3,3,2),imshow(I),title('adjust');
subplot(3,3,3),imshow(g_im),title('grayscale');
subplot(3,3,4),imshow(eg_1),title('canny');
subplot(3,3,5),imshow(bw),title('dilate');
subplot(3,3,6),imshow(bw2),title('fill');
subplot(3,3,7),imshow(r),title('label');

[Image Analyst]

You forgot to attach 'LEAF_0334.jpg', or even a screenshot of your final figure, so what can we say?

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[eltaf kazemi]

thanks , I did it