Hello. Thank you for writing to us at healthcaremagic
That is a fairly large patch of vitiligo, extending down from stomach to below knee.
Stable vitiligo is defined as white patches which have remained as it is, for more than 1 year i.e no new patches appearing during that period and no progression of existing patches.
Surgery is definitely an option in recalcitrant, stable vitiligo patches that do not show adequate response to medical therapy. 
Various surgical measures include:
-punch grafting,
-autologus 
melanocyte culture and 
transplantation,
-suction blister grafting,
-thin split thickness graft etc.
The basic principle of 
surgical treatment is autologous grafting of viable melanocytes from pigmented donor skin to recipient vitiliginous areas.
 Stability of the disease process is the most important parameter to achieve a successful outcome. Stable disease makes sure there won't be any new patches at the site of harvest of melanocytes.
I suggest you to visit your 
dermatologist for the needful.
Regards