MATLAB: How do i convert RGB image to HSV and then generate histogram of that hsv image

hsv histogramMATLAB

I have read an image and converted in hsv color space, but now i am not getting how to generate histogram for that hsv image.

what would i do to generate it ?

Best Answer

Maybe this could help:

https://www.mathworks.com/matlabcentral/answers/273563-how-to-draw-histogram-of-hsv-image

Related Solutions

MATLAB: RGB to HSV conversion then Generating a Histogram

This may get you started:

I = imread('peppers.png');
HSV = rgb2hsv(I);
H = HSV(:,:,1); % the hue plane
hist(H(:))

MATLAB: Histogram

What you've put doesn't really make sense. See if this is what you want. It computes the histograms of x and y and then plots them.

clc; % Clear the command window.
close all;  % Close all figures (except those of imtool.)
clear;  % Erase all existing variables.
workspace;  % Make sure the workspace panel is showing.
fontSize = 15;
x=rand(10,1); 
y=rand(10,1);
% Plot the original x data.
subplot(2, 2, 1);
bar(x);
xlabel('Index of X', 'fontSize', fontSize);
ylabel('Value of X', 'fontSize', fontSize);
title('X as a function of Index', 'fontSize', fontSize);
% Plot the original y data.
subplot(2, 2, 2);
bar(y);
xlabel('Index of Y', 'fontSize', fontSize);
ylabel('Value of Y', 'fontSize', fontSize);
title('Y as a function of Index', 'fontSize', fontSize);
% Get the histograms.
[xCounts xValues] = hist(x)
[yCounts yValues] = hist(y)
% Plot X histogram.
subplot(2, 2, 3);
bar(xValues, xCounts);
xlabel('Value of X', 'fontSize', fontSize);
ylabel('Frequency of Occurrence for X', 'fontSize', fontSize);
grid on;
title('Histogram of X', 'fontSize', fontSize);
subplot(2, 2, 4);
bar(yValues, yCounts);
xlabel('Value of Y', 'fontSize', fontSize);
ylabel('Frequency of Occurrence forY', 'fontSize', fontSize);
grid on;
title('Histogram of Y', 'fontSize', fontSize);
% Enlarge figure to full screen.
set(gcf, 'Position', get(0,'Screensize'));

Best Answer

Related Solutions

MATLAB: RGB to HSV conversion then Generating a Histogram

MATLAB: Histogram

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