How to interpolate colors and plot as an image?

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Itzik Ben Shabat 2015-8-3

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https://ww2.mathworks.cn/matlabcentral/answers/232192-how-to-interpolate-colors-and-plot-as-an-image

Hi, I have nine points (X,Y coordinate) and the color in each point (currentl in three vectors). I wish to show an image of the interpolation between the colors. how do i do that? so far I got

if true
  % code
[X, Y] = meshgrid([-1 0 1], [-1 0 1]);
red_dist=     [0 0.5 0; 0.5 1   1  ;0   1  1 ];
green_dist =  [0  1   1;   1   1   1  ;1   1  0 ];
blue_dist =     [1  1   0;  1   1  0.5;0  0.5  0 ];
end

thanks