Reports - attach chart image on email body

I need to send email of timeseries charts images from report module on email body, not as attachment…

I did got through forum and I don’t know Java coding to understand byteArray conversions.

Can someone help with code to attach a chart from report as image to email body?
If we read as byteArray using and return as jpeg/png/html, how to convert byteArray to image in email body?