Program for Bit plane slicing of Image using Matlab

 Program  for  bit plane slicing of Image using Matlab

 Bit extraction or Bit Plane Slicing can be defined as separating a digital image into its bit planes is useful for analyzing the relative importance played by each bit of the image, implying, it determines the adequacy of numbers of bits used to quantize each pixel , useful for image compression. 

For example, for 8-bit data representation there are 8 bit planes: the first bit plane contains the set of the most significant bit, and the 8th contains the least significant bit.

Program:

clc;

a=imread('D:\bird.jpg');

c=rgb2gray(a);

a=double(c);

r=input('which bit of image do you want to see MSB=1 LSB=8 :');

[row col]=size(a);

for x=1:1:row

    for y=1:1:col

        c=dec2bin(a(x,y),8);

        d=c(r);

        w(x,y)=double(d);

        if w(x,y)==49

            w(x,y)==255;

        else

            w(x,y)=0;

        end

    end

end

figure(1)

imshow(uint8(a))

 

title('Original Image')

figure(2)

imshow(uint8(w))

title('Bit extraction')

xlabel(sprintf('Bit value is %g',r))

           

OUTPUT: