Send base64 image to phone notification

I am sending a base64 image to Node-RED using a webhook node. Is it possible to send that base64 image from the webhook node through as a notification to a phone? I know you can do that with a jpg that is saved to a file, but can it be done without needing to save to a file first? ie: receive base64 image through webhook => process it into a notification using a function node => send notification to phone using service call to notify