reading color fits file

Hello, I need to read a FITS file that has four planes, GRGB and see no way to do that in matlab. Any suggestions?

Thanks Dan

[Image Analyst]

Write the reader yourself?

[Dan Mckenna]

Turns out it is simple. The fits file needs to be demosaic because it is one plane with Bayer grgb. not 4 planes. I should have known that.