plot
if true % code
endm5=1.78c6=0.00036c7=0.02c8=0.00004c9=0.1k6=167.00k8=623.00F = 80for w= 20:100:1000 x5(end+1) = F/(sqrt(((k6+k8)-(m5*w))^2+((c6+c7+c8+c9)*w)^2)) endplot (w,x5)clc; % Clear the command window.
close all; % Close all figures (except those of imtool.)
workspace; % Make sure the workspace panel is showing.
format long g;format compact;fontSize = 25;%===============================================================================
% Get the name of the first image the user wants to use.
baseFileName = 'A.jpg';folder = fileparts(which(baseFileName)); % Determine where demo folder is (works with all versions).
fullFileName = fullfile(folder, baseFileName);% Check if file exists.
if ~exist(fullFileName, 'file') % The file doesn't exist -- didn't find it there in that folder.
% Check the entire search path (other folders) for the file by stripping off the folder.
fullFileNameOnSearchPath = baseFileName; % No path this time.
if ~exist(fullFileNameOnSearchPath, 'file') % Still didn't find it. Alert user.
errorMessage = sprintf('Error: %s does not exist in the search path folders.', fullFileName); uiwait(warndlg(errorMessage)); return; endend%=======================================================================================
% Read in demo image.
rgbImage = imread(fullFileName);% Get the dimensions of the image.
[rows, columns, numberOfColorChannels] = size(rgbImage);% Display the original image.
subplot(2, 2, 1);imshow(rgbImage, []);axis on;caption = sprintf('Original Color Image, %s', baseFileName);title(caption, 'FontSize', fontSize, 'Interpreter', 'None');% Set up figure properties:
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0.05 1 0.95]);% Get rid of tool bar and pulldown menus that are along top of figure.
% set(gcf, 'Toolbar', 'none', 'Menu', 'none');
% Give a name to the title bar.
set(gcf, 'Name', 'Demo by ImageAnalyst', 'NumberTitle', 'Off')drawnow;hp = impixelinfo(); % Set up status line to see values when you mouse over the image.
[rows, columns, numberOfColorChannels] = size(rgbImage)if numberOfColorChannels > 1 % It's not really gray scale like we expected - it's color.
% Use weighted sum of ALL channels to create a gray scale image.
% grayImage = rgb2gray(rgbImage);
% ALTERNATE METHOD: Convert it to gray scale by taking only the green channel,
% which in a typical snapshot will be the least noisy channel.
grayImage = rgbImage(:, :, 1); % Take red channel.
end% Display the image.
subplot(2, 2, 2);imshow(grayImage, []);axis on;caption = sprintf('Gray Image');title(caption, 'FontSize', fontSize, 'Interpreter', 'None');hp = impixelinfo();drawnow;% Display the histogram of the image.
subplot(2, 2, 3);histogram(grayImage, 256);caption = sprintf('Histogram of Gray Image');title(caption, 'FontSize', fontSize, 'Interpreter', 'None');grid on;drawnow;%=======================================================================================binaryImage = grayImage < 150;% Keep only the largest blob.
binaryImage = bwareafilt(binaryImage, 1);% Display the masked image.
subplot(2, 2, 3);imshow(binaryImage, []);axis on;caption = sprintf('Binary Image');title(caption, 'FontSize', fontSize, 'Interpreter', 'None');hp = impixelinfo();drawnow;% Get the bounding box of the blob.
props = regionprops(binaryImage, 'BoundingBox');boundingBox = [props.BoundingBox]% Display the original image.subplot(2, 2, 4);imshow(rgbImage, []);axis on;caption = sprintf('Original Color Image, %s', baseFileName);title(caption, 'FontSize', fontSize, 'Interpreter', 'None');% Plot the bounding box over it.
hold on;rectangle('Position', boundingBox, 'LineWidth', 2, 'EdgeColor', 'r')
close allk = input('Number of frequency points = '); %%256
w = 0:pi/k:pi;alpha=0.3num=((1-alpha)/2)*[1 1]den=[1 -alpha]hlp=freqz(num,den,w)num1=((1+alpha)/2)*[1 -1]den1=[1 -alpha]hhp=freqz(num1,den1,w)figuresubplot(2,1,1)plot(w/pi, abs(hlp),'k','LineWidth', 2);hold ongrid on;xlabel('\omega/\pi', 'FontSize', 12, 'FontWeight', 'Bold')ylabel('Amplitude', 'FontSize', 12, 'FontWeight', 'Bold')title('|H(\omega)|', 'FontSize', 12, 'FontWeight', 'Bold')set(gca, 'FontSize', 14, 'FontWeight', 'Bold')plot(w/pi, abs(hhp), 'LineWidth', 2);hold ongrid on;xlabel('\omega/\pi', 'FontSize', 12, 'FontWeight', 'Bold')ylabel('Amplitude', 'FontSize', 12, 'FontWeight', 'Bold')title('|H(\omega)|', 'FontSize', 12, 'FontWeight', 'Bold')set(gca, 'FontSize', 14, 'FontWeight', 'Bold')plot(w/pi, abs(all_pass),'r', 'LineWidth', 2);hold ongrid on;xlabel('\omega/\pi', 'FontSize', 12, 'FontWeight', 'Bold')ylabel('Amplitude', 'FontSize', 12, 'FontWeight', 'Bold')title('|H(\omega)|', 'FontSize', 12, 'FontWeight', 'Bold')set(gca, 'FontSize', 14, 'FontWeight', 'Bold')legend ('low pass','high pass','all pass','Location', 'Northwest')set(legend,'FontSize',7);
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