alphaPunch
αlphaPun.ch will trace the opaque part of your PNG or GIF image. It will then punch through the alpha channel (i.e. the transparent bit), so you can click on things behind it.
☍ 29.10.2011
αlphaPun.ch will trace the opaque part of your PNG or GIF image. It will then punch through the alpha channel (i.e. the transparent bit), so you can click on things behind it.