How can I represent my image pixel values inside a HSV cone

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Omair 2013-11-22

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评论： Omair 2013-11-22

Hello,

I'm trying to develop a colour model for fire in HSV colour space.I have a million sample pixels per channel for the HSV colour space. I want to represent these samples inside the HSV cone to get an idea of how they are distributed. Any thoughts or suggestions on how i could possibly proceed with this? Thanks in anticipation.

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Answer 1

Image Analyst 2013-11-22

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https://ww2.mathworks.cn/matlabcentral/answers/107158-how-can-i-represent-my-image-pixel-values-inside-a-hsv-cone#answer_116015

color_gamut_visualizer.m

See my attempt at doing it in MATLAB attached below in blue.

A better option is to use the Java code that was originally written for ImageJ but can be called from MATLAB. See my code samples in http://www.mathworks.com/matlabcentral/answers/?search_submit=answers&query=color-inspector&term=color-inspector

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Image Analyst 2013-11-22

在 MATLAB Online 中打开

Just create any image. Like (untested)

k = 1;
for row = 1 : 1000
  for col = 1 : 1000
    hsvImage(row, col, 1) = hsv(k, 1);
    hsvImage(row, col, 2) = hsv(k, 2);
    hsvImage(row, col, 3) = hsv(k, 3);
    k = k + 1;
  end
end
% Now convert that to an RGB image
rgbImage = hsv2rgb(hsvImage);
imwrite(rgbImage, fullFileName);