extract leaf from background

I have a dataset of images like this I want to covert its background to white.Or extract only leaf from this image. Please somebody help.

Answer 1

[Selva Karna]

clc

clear all;

close all;

rgb=imread('your image');

%% Check second layer high intensity

%% Then set thresholf you got foreground

gray=rgb2gray(rgb);

bw=gray<thresold; %% second layer highe intensity value

bw2=imdilate(bw,'disk',2,2);

%% find the hols from above bw2

hls=find(bw2==0);

msk=zerso(h,w);

msk(hls)=255;

r=rgb(:,:,1);

g=rgb(:,:,2);

b=rgb(:,:,3);

r(hls)=0;

g(hls)=0;

b(hls)=0;

forground_image=cat(3,r,g,b);