How to capture zoomable image as one high resolution image?

Question

I would like to capture a zoomable image at a high resolution zoomed at 3x. Do you know of a way I can piece this image together without having to do it manually? Here is the image

Answer 1

After using bhups' solution, tweaking outputxand outputy for a good while, I tried something else.

I went back to the object page (in the above example, here), took the thumbnail image URL (http://www.metmuseum.org/Imageshare/ep/regular/DP145931.jpg), replaced regular with zoom and to my surprise got what I presume is the full image, with less effort:

http://www.metmuseum.org/Imageshare/ep/zoom/DP145931.jpg

Answer 2

You can tweak the URL to get the job DONE. Here is the URl for 3x image.
http://media.metmuseum.org/mgen/metzoom/zoom3.ms?img=DP145931.jpg&wrapperid=11&outputx=1200&outputy=1601.067378252168&level=1&x=0&y=0&backcolor=0x00000
outputx and outputy are the output image dimensions. level implies the zoom level. and x and y are the top left corner of the selected rectangle.