alphablender

Alpha Blending packege for go

very simple function to join two images togather

Function uses Alpha Blend for calculating pixels. https://en.wikipedia.org/wiki/Alpha_compositing

How to use

• Blend

just set blending image to first arg, background image to second arg.

example:

	blendedImage := alphablender.Blend(starImage, backImage)

starImage and backImage variable is image.Image type of Go.

see blend_test.go , describes how to blend two png file images togather.

You can blend two images togather

+

=

Limitation

• two images must be the same size.
• images must be RGBA or NRGBA type.