การตรวจับสีผิวโดยใช้สี YCbCr

การตรวจับสีผิวโดยใช้สี YCbCr

clc,

close all,

clear all,

%%

img_orig=imread(‘car6.jpg’);

figure, imshow(img_orig)

img=img_orig; %copy of original image

%%

img_g = rgb2gray(img);

img_g1 = img_g;

%%

ycbcr = rgb2ycbcr(img);

y=ycbcr(:,:,1);

cb=ycbcr(:,:,2);

cr=ycbcr(:,:,3);

figure, imshow(cb), impixelinfo

figure, imshow(cr), impixelinfo

figure, imshow(y), impixelinfo

%%

[r c] = size(y);

%%

for i = 1:r

for j = 1:c

if cb(i,j) >= 110 && cb(i,j) <= 120 && cr(i,j) >= 137 && cr(i,j) <= 142

%img_g(i,j) = img_g(i,j);

img_g(i,j) = 255;

else

img_g(i,j) = 0;

end

end

end

figure, imshow(img_g), impixelinfo

%%

imf = imfill(img_g, ‘holes’);

figure, imshow(imf), impixelinfo

%%

imbw = bwareaopen(imf, 5000);

figure, imshow(imbw), impixelinfo

%%

m = img_g1 .* uint8(imbw);

figure, imshow(m), impixelinfo

%%

[rimbw cimbw] = size(imbw);

for iimbw = 1:rimbw

for jimbw = 1:cimbw

if imbw(iimbw,jimbw) == 1

%img_g(i,j) = img_g(i,j);

img_orig(iimbw,jimbw,:) =  img_orig(iimbw,jimbw,:);

else

img_orig(iimbw,jimbw,:) = 0;

end

end

end

figure, imshow(img_orig), impixelinfo

   ภาพ Input

                                                                ภาพ Output