Re: imagesc and scaled matrix

[Adam Majewski]

On 06.11.2011 14:16, Martin Helm wrote:
> Am Sonntag, 6. November 2011, 13:54:37 schrieb Adam Majewski:
> > X = rand(100,100).*(2^14);
> > size(X);
> > B = imagesc(X);
> > colorbar
> > size(B)
> Looking into the code for imagesc I see that what it returns is  a graphics
> handle not the scaled matrix. I guess it was simply forgotten to change the
> doc string when this change was made.
> You can see the content of B with  get(B)

OK. So I try :

X = rand(100,100).*(2^14);
size(X);
hB = imagesc(X);
colorbar

B=get(hB);
MyImage=B.cdata;

saveimage("test.ppm", B.cdata,"ppm");  # save image to file

MyImage is a copy of X. It is not scaled matrix.

Where is scaled matrix ?
(or how I can make it ?)

Regards

Adam