Hello,
Lets say I have an image like this within my application:

Is there any way to dynamically remove the white during runtime? So it becomes something like this:

I know that I can do this by remove the white within an external editor (PS), but I need it to do it during runtime within Unity. Also, these images are also created dynamically during runtime, for example the user might take a photo of a black and white image, and is then loaded into Unity - so having a pre-made alpha channel isn’t possible.
I appreciate the help, thanks.
These images are also being loaded in at runtime. For example, the user might take a photo of a black and white image. I want to be able to remove the white, and replace it with an alpha. So having an alpha channel before hand isn't possible.
– oliver-jones