Matlab Image Patch Extraction Code | Patch Extraction from an Image matlab code

In Image patch extraction mainly used for Content Based Image Retrieval (CBIR) and Patter recognition systems.Here we give the code for patch extraction from an Image.In patch extraction also get the features from each patches in CBIR system. It also used segmentation computation.Patches also used to Recognize Face Synthesis process and detect Nose, eyes,mouth.Patches also support improve the image quality and remove the noise from an images.You have apply the filters on each patches then you get quality images.

In below code used for Patch extraction from an Image.

clc

clear all

close all

input = rgb2gray(imread('041078.JPG')); %converted into RGB color

patchsize = 10; %10*10 path size

imsize = 10*25;

input = imresize(input,[imsize imsize]);

figure;imshow(input);

image_out = [];

for i = 1:patchsize:imsize

image_out_tmp = [];

for j = 1:patchsize:imsize

tmp_img = input((i+1-1):i+patchsize-1,(j+1-1):j+patchsize-1);

tmp_img = [ones(patchsize,1) tmp_img ones(patchsize,1)];

tmp_img = [ones(1,patchsize+2);tmp_img;ones(1,patchsize+2)];

image_out_tmp = [image_out_tmp tmp_img];

end

image_out = [image_out;image_out_tmp];

end

figure;imshow(image_out);

This script out put as follows..

In above output for patch extraction.Here we give the patch sizes is 10.Then we extract the 10x10 patches from an Image.

Kindly Bookmark and Share it: