Point sample opacity/alpha in Adobe Photoshop?
I opened a PNG containing an alpha channel in Photoshop and wanted to get the opacity / alpha of a given point in the PNG file, so that I could match that opacity in a new photoshop layer. How can I do this? is there any way to get an alpha value at a point the way the color sample tool gives RGB values at a given point?
- Open the Info palette
- Click on the palette option in the top right corner and choose Panel Options...
- Where it says "Second Colour Readout", choose Mode: Opacity
- Hit "OK"
In the info palette it will now tell you the opacity level of wherever you put the mouse.