displaying image with gnuplot - while specifying the display size

Hello,

I have a png image with geometry 1600x500, which I want to display on gnuplot

I converted it into avs by doing: convert /tmp/map.png  /tmp/map.avs

and I display it on gnuplot using: plot '/tmp/map.avs' binary filetype=auto with rgbimage

My problem is that I want the entire image to be displayed inside the gnuplot rectangle (0,0)-(1.6,0.5)

and currently the image is displayed within the rectangle (0,0)-(1600,500)

when I try to resize the image to fit my desired size, the image is displayed very poorely (low resolution)


How can I do it?

Thanks