Hello I would like to add some kind of watermark on multiple pics on the fly.
First I want my script to get RGB value of background (ex. pt. A=(10,10)) with imagecolorat() function.
That's what I've done so far.
Then I want to transform RGB color @ pt. A into it's negative value in order to choose my text's color value to be exactly opposite to the background.
Anyone know how to do that ?
Thx.
