image - Converting array into grayscale in matlab -


i trying plot set of data in grayscale. however, image seems blue.

i have set of data, albedo ranges [0, 0.068], 1x1 double.

my code is:

 px,py     albedomax = 0.0679; albedomin = 0;     out_im(px,py) = 1/(albedomax-albedomin)*(albedo - albedomin);     imshow(out_im);     drawnow;  end

basically px,py image coordinates have iterate over, , formula trying map input range of [0, 0.068] [0 1]. however, running code, notice output blueish. wondering went wrong.

thanks help.

can't make use of rgb2gray function?


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