ImageData

Functions

ImageData:encode	Encodes the ImageData to a file format and optionally writes it to the save directory.
ImageData:getDimensions	Gets the width and height of the ImageData in pixels.
ImageData:getFormat	Gets the pixel format of the ImageData.
ImageData:getHeight	Gets the height of the ImageData in pixels.
ImageData:getPixel	Gets the color of a pixel.
ImageData:getString	Gets the full ImageData as a string.
ImageData:getWidth	Gets the width of the ImageData in pixels.
ImageData:mapPixel	Transform an image by applying a function to every pixel.
ImageData:paste	Paste into ImageData from another source ImageData.
ImageData:setPixel	Sets the color of a pixel.

Examples

Images that have dimensions that are not a 2^n will display incorrectly as a white rectangle on some graphics chipsets. This function pads images so they will display correctly.

function newPaddedImage(filename)
	local source = love.image.newImageData(filename)
	local w, h = source:getWidth(), source:getHeight()
	
	-- Find closest power-of-two.
	local wp = math.pow(2, math.ceil(math.log(w)/math.log(2)))
	local hp = math.pow(2, math.ceil(math.log(h)/math.log(2)))
	
	-- Only pad if needed:
	if wp ~= w or hp ~= h then
		local padded = love.image.newImageData(wp, hp)
		padded:paste(source, 0, 0)
		return love.graphics.newImage(padded)
	end
	
	return love.graphics.newImage(source)
end

See Also

• love.image
• Image