This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
JSPs should never be used to serve non-text data. Please see this article to find out why.
Rather, a servlet -- possibly using the help of other classess -- should be used to get the image data and serve it as the response. Be sure to set the appropriate response headers accordingly.
In your HTML page -- whether it's generated from JSP or not is moot -- you would use an <img> tag just like any other image. Except that the src attribute of the <img> tag references the image-serving servlet rather than an image file.