new to image processing and will like to get some guides for this question. Add sine wave noise to the image and then remove it by band-reject filtering and notch filtering.

Add sine waves to the face using the following commands. Then remove the noise using band-reject fltering or notch fltering.

[x,y]=meshgrid(1:256,1:256);
s=1+sin(x+y/1.5);
ep=(double(en)/128+s)/4;

Answer 1

[Image Analyst]

That's pretty much what my attached demo does. Adapt it as needed.

[Amad Kadir]

How do I incorparate the following three line in to the code you have?

[x,y]=meshgrid(1:256,1:256);

s=1+sin(x+y/1.5);

ep=(double(en)/128+s)/4;

[Image Analyst]

Just make s be either the gray scale image to be corrupted, or the image that corrupts the other image.

en = 127;
[x,y]=meshgrid(1:256,1:256);
s=1+sin(x+y/1.5);
grayImage = s;
imshow(grayImage, [])
ep=(double(en)/128+s)/4;

[Amad Kadir]

I have the following code but Im still getting error message. can you

guide me please?

im = imread('flower.tif');

noiseIm = imnoise(im, 'gaussian', 0.1); % adding the sine waves to the noise to image

subplot(2,3,1),imshow(noiseIm);

xlabel('Gaussian');

en = 127 ;

[x,y]=meshgrid(1:256,1:256 );

s=1+sin(x+y/1.5 );

grayImage = im ;

imshow(grayImage , [9 9])

ep=(double(en)/128+s)/4;

x = filter2(fspecial('average',3), noiseIm)/255; %removing nosie by the average filter method

subplot(2,3,2),

imshow(x);

label('Average Filter');

denoise2 = wiener2(noiseIm, []); %removing nosie by the wiener filter method

subplot(2,3,3), imshow(denoise2);

xlabel('Wiener Filter');

Im getting the following errors and im not sure what I should do to fix

it. anything ideas?

(Error using images.internal.checkDisplayRange (line 19)

HIGH must be greater than LOW.

Error in images.internal.imageDisplayValidateParams (line 58)

common_args.DisplayRange = images.internal.checkDisplayRange(common_args.DisplayRange,mfilename);

Error in images.internal.imageDisplayParseInputs (line 79)

common_args = images.internal.imageDisplayValidateParams(common_args);

Error in imshow (line 253)

images.internal.imageDisplayParseInputs({'Parent','Border','Reduce'},preparsed_varargin{:});

Error in imageprocessing (line 11)

imshow(grayImage , [9 9]))

[Image Analyst]

Replace

imshow(grayImage , [9 9])

with

imshow(grayImage , [])

also, there is no label() function. Maybe you meant xlabel() or bwlabel().