Plotting an image with its coordinates and RGB values

Question

bami95 2019-1-31

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https://ww2.mathworks.cn/matlabcentral/answers/442476-plotting-an-image-with-its-coordinates-and-rgb-values

回答： Jan 2019-1-31

I have a question about plotting images in Matlab. I have a 3D array which includes the X-Y-Z coordinates of each point and their RGB values as below:

surface=zeros(2000,2000,6); %%after filling the matrices, surface(:,:,1:3) represents RGB values for each point and surface(:,:,4:6) represents the X-Y-Z coordinates of each point and Z is zero so it's a 2D image

Is it possible to retrieve the image based on this array? I have taken a look at plot(),interp2() and ... non of them do what I want.

Thank you very much

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Answer 1

Davide Frey 2019-1-31

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在 MATLAB Online 中打开

I think that

imshow(surface(:,:,1:3))

should do the trick...

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Answer 2

bami95 2019-1-31

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Thank you for your answer. Actually I want to plot the image of a colorful wall taken by a camera so the coordinates of all the points should be interpolated . The above code only returns the initial image of wall without considering the relative position of reference frames.(camera reference frame and the wall reference frame)