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Contents

Que. 1

Que. 2

Que.3aQue.3b

Que.4

Que.5

Que. 6

all all

% NAme:Neha Patne

% Roll No.: 15

% Email Id : patne241991@gmail.com

% Sem: VIIth sem

% Section: A

% Lab03: Image Enhancement Using Gray level Transformations

Que. 1

%Q.1) Write a program to perform Image negative transformation on image

%lab03a.tif.

A=imread('lab03a.tif'

imshow(A),title( 'Original Image'

subplot(1,2,2),

title('Processed image using Image negative transformation'

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Que. 2

%Q.2) Write a program to perform Log transformation on image

%lab03b.tif.

B=imread('lab03b.tif'

imshow(B,[]),title( 'Original Image'

title('Processed Image using Log transformation'

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Que.3a

%Write a program to perform Power Log transformation on image

%lab03c.tif.

C=imread('lab03c.tif'

%here gamma is 0.5

%here gamma is 1.5

imshow(C,[]),title( 'Original Image'

imshow(Claw1,[]),title( 'Processed Image with gamma 0.5'

title('Processed Image with gamma 1.5'

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Que.3b

%Write a program to perform Power Log transformation on image

%lab03d.tif.

E=imread('lab03d.tif'

imshow(E,[]),title( 'Original Image'

imshow(Elaw1,[]),title( 'Processed Image with gamma 0.5'

title('Processed Image with gamma 1.5'

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Que.4

%Write a program to perform Gray level slicing with and without background

%on the image lab03e.tif.

% part (a)

D=imread('lab03e.tif'

for i=1:1:r

for j=1:1:c

if ((D(i,j)=200)) % A=130, B=200

% assign Lower level

else

% assign Higher level

end

end

end

% part(b)

for i=1:1:r for j=1:1:c

if ((D(i,j)=200)) % A=130, B=200

% assign original gray level as it is

else

% assign Higher level

end

end

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end

imshow(D),title( 'Original Image'

imshow(p,[]),title( 'Gray level slicing without background '

title('Gray level slicing with background '

Que.5

%Write a program capable of generating all the biplanes of an image and

%able to reconstruct the image using 4 higher order bitplanes.

%Display all the bit planes in a figure window and display the original

%image and reconstructed image in another figure window.

P=imread('lab03f.tif'

for k=1:1:8

subplot(4,2,k)

imshow(c,[])

title(sprintf( '%d bit plane'

end

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% obtaining original image by first 4 bit plane

for k=5:1:8

end

figure,subplot(1,2,1)

imshow(P,[])

title( 'original image' )

subplot(1,2,2)

imshow(d,[])

title( 'image obtained by higher 4 bit plane' )

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Que. 6

%Write a findbitplane function to return any of the 8 bit plane images of the

p=imread('lab03g.tif'

for k=1:1:8

subplot(4,2,k)

imshow(l,[])

title(sprintf( '%d bit plane'

end

% obtaining original image by first 4 bit plane

for k=5:1:8

end

figure,subplot(1,2,1)

imshow(p,[])

title('original image' )

subplot(1,2,2)

imshow(d,[])

title('image obtained by higher 4 bit plane' )

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Published with MATLAB 7.0.4