Firstly, I'm no video professional, I'm an audio professional. Video theory is a dark area for me. So I will use an audio-type analogy in this question.
In audio editing, it is possible to subtract one waveshape from a bunch of other waves by inverting the phase of the wave(phase subtraction). While this is a simple, easy to understand process, due to my lack of knowledge of digital video processing, I am unsure if this process is an available tool in video editing. My logical mind tells me that it is. I know in nature, like in bubbles, phase interactions cause interesting effects.
I need to use this process on a video to remove the axis scales from a 3D spectrogram, so that everything else in the video except the axis scales are left.
For this I assume I need an isolated image of the thing I want to subtract i.e. the axis scales. I'm using Adobe Premiere Pro or After Effects, whichever is best for this. The Image I want to remove is stationary in the video.
Any advice on how to do this in Adobe AE/PP if it can be done is appreciated.