About the "screen" and "multiply" blend mode...
by Steven Addinsell on May 19, 2012 at 5:55:24 pm
I am with Ps Touch Photoshop version for Ipad.
I tried to use the blend mode with screen on a black background and with multiply on a white background : it works but there is always a bit of the color of the new background on my subject...
The subject is not clean.
Ie : if I have a new background that is yellow on my subject let's say a red car there will be a bit of yellow on the red car...
Re: About the "screen" and "multiply" blend mode... by adolf witzeling on May 22, 2012 at 3:12:57 pm
Both blending modes (multiply and screen) always take the pixel values of the layer underneath in consideration. So, i.e. when you set the top layer to multiply over the bottom layer, as in your example with the red car over yellow background, everything that is NOT solid red on your top layer will show through.
I am assuming you want the red car only to be red, so the easy way could be to set the car layer's blending mode to normal and mask out the background via layer mask or simply erase the car's background.
Hope that helps.