I have a gray-scale image. I need to convert gray-scale tones to transparency data in alpha channel using Adobe Photoshop. Say if the area is black, then no transparency. The white areas will be converted to full transparent pixels in alpha channel.
How to do it?
This is sample file, which I made by Fireworks. This sample is a result which I would like to achieve in Photoshop.
If you open this PNG in Photoshop, you will see what I mean.