Module:ImageRatio

local p={}
function p.ratio(frame)
	local file = frame.args[1]  and mw.title.new('File:' .. mw.uri.decode(mw.ustring.gsub(frame.args[1],'%|.*$',''), 'WIKI'))
	file = file and file.file
	local w = tonumber(file.width) or 1
	local h = tonumber(file.height) or 1
    local r = w/h or 1
	return r
end
return p