MATLAB: How to plot histogram of hue value in polar

histogramimage processingImage Processing Toolboxpolar

i wants to plot a histogram of hue values in polar . in my 1st image i have plotted histogram of hue values . and now i would like to plot it on polar as shown in figure 2.

please help me .

Best Answer

I just adapted Doug's code to use a sample image and I got this:

See code attached below in blue text.

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MATLAB: How can i draw bicircles with radius R and R’ for ELBP(extented local binary pattern ) and find (g0,g1,g2..g7)R and (g0,g1,g2..g7)R’

You know the locations.....they are at angles 0, 45, 90, 135, 180, 225, 270, 315 and 360 degrees.

Angles = [0, 45, 90, 135, 180, 225, 270, 315, 360] ;   % location in degrees 
% In polar coordinates 
iwant = [repmat(R,1, length(Angles)); Angles*pi/180]
% In cartesian coordinates 
x = R*cos(Angles*pi/180) ;
y = R*cos(Angles*pi/180) ;

Where R is your radius of circle

MATLAB: I need the angles in the [-pi:pi] range instead of [0:2*pi]

R(R > pi) = R(R > pi) - 2*pi;

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Related Solutions

MATLAB: How can i draw bicircles with radius R and R’ for ELBP(extented local binary pattern ) and find (g0,g1,g2..g7)R and (g0,g1,g2..g7)R’

MATLAB: I need the angles in the [-pi:pi] range instead of [0:2*pi]

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