ow frequency+high frequency passes in the low pass filter & high pass filter in matlab need code & details

Please help me.....

Answer 1

[Image Analyst]

Try this:

% Low pass 1D signal:
windowWidth = 11; % Or whatever.
kernel = ones(1, windowWidth)/WindowWidth;
lowPassFilteredSignal = conv(signal, kernel, 'same');

% High pass 2D image
kernel = -1 * ones(windowWidth);
middleIndex = int32(floor(windowWidth/2));
kernel(middleIndex , middleIndex) = windowWidth^2-1;
kernel = kernel/windowWidth^2; % Normalize.
highPassImage = conv2(double(grayImage), kernel, 'same');
imshow(highPassImage , []);