Erasing Brush Drawings

Dear all,
I want to collect data with the brush component in which participants will draw on an image. I also want them to have a chance to erase their drawing if needed. The erase option I found is changing the color of the brush to the background color. But this does not solve my problem because there is an image in the background, not a single color. Is this possible to erase things drawn with the brush component?
I appreciate any help!