Module:ImageRatio

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Usage

{{#invoke:ImageRatio|ratio|Filename.jpg}}

This returns the ratio of width to height (w/h) for an image. Defaults to returning 1 if the image doesn't exist, this avoids divide by 0 errors in templates that use it.

The above documentation is transcluded from Module:ImageRatio/doc. (edit | history)
Editors can experiment in this module's sandbox (create | mirror) and testcases (create) pages.
Subpages of this module.

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