Convert XW format data to RGB format
imRGB = XW2RGBFormat(imXW,row,col);
This routine converts from XW format to RGB format. The row and
column of the imXW are required input arguments.
We say matrices in (r,c,w) format are in RGB format. The dimension, w,
represents the number of data color bands. When w=3, the data are an RGB
image. But w can be almost anything (e.g., 31 wavelength samples from
400:10:700). We use this format frequently for spectral data.
The RGB format is useful for imaging. When w = 3, you can use
conventional image() routines. When w > 3, use imageSPD.
The XW (space-wavelength) format is useful for computation. In this
format, for example, XW*spectralFunction yields a spectral response.
The inverse routine is RGB2XWFormat.
Othertimes, we use a space-wavelength format. In this format, which is
convenient for some matrix computations, the data are in a (row*col) x
color format. We call this XW format.
The inverse routine is RGB2XWFormat
See also: imageSPD, imagescRGB, imagescM, RGB2XWFormat
Copyright ImagEval Consultants, LLC, 2003.