Re: Octave grayscale image

[klaus45]

Thanks. 

I tried this:

a =  (200*rand(64));  
figure(1), image(a), colormap(gray)
title('newpicture')
imwrite(uint8(a),"testing.jpg") 

b = imread(testing.jpg);
figure(2), image(b), colormap(gray)
title('picture is loaded') 

- Good, it worked! I got a grayscale image! 

grayscale values should be: 0 is a lowest place and 255 is a highest.
x=255 is a width of the landscape. y=255 is a depth.

Grayscale image should have that description above for a
landscape that has a 200 pixel tall hemisphere in the middle. 

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