How to Use Imagesc in Matlab

On Matlab Geeks, we have already covered basic two-dimensional plotting techniques.  We would now like to start covering techniques for plotting three-dimensional data.  One of the easiest and most visually pleasing ways of plotting three-dimensional data onto a 2-D surface is imagesc.  Originally meant to be used with image data, this function is a great tool for plotting 2-D matrices.  Imagesc is different from the image function in that the data is automatically scaled to fit the range of the colormap.  This feature makes representing a matrix with imagesc is far easier than with image.  We recommend using imagesc to plot data from a 2-D matrix. Continue reading

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