Custom HSV contourf Plot

Hi,

I have 3 2D matrices; Hue, Saturation and Value, and I would like to create a figure (based on the values in these matrices) similar to a contourf plot.

Is there a simple solution i.e. colormap() function, or should I be plotting pixels directly?

Thanks

Chris

Answer 1

[Walter Roberson]

pcolor() and colormap(hsv) ?

Answer 2

[Chris]

I don't think that is wuite the solution I am looking for.

I have solved the problem using python with the following code

import numpy as np
import pylab as pl
from matplotlib.colors import hsv_to_rgb

# I already have the matrices H, S and V from a previous simulation
HSV = np.dstack((H,S,V))
RGB = hsv_to_rgb(HSV)
pl.imshow(RGB, origin="lower", extent=[0, 360, 0, 1], aspect=150)
pl.xlabel("H")
pl.ylabel("V")
pl.title("$S_{HSV}=1$")
pl.show()

This seems to work well. It would be nice if I could have a similar code in MATLAB so that I can do everything in the one place.

[Image Analyst]

Post a screenshot of your desired output so we can see what it creates and we can give you code to do the same thing in MATLAB. Attach a .mat file with H, S, and V stored inside it so we have your exact data.