You can't add an image to the chart using FileMaker's chart object to do so. You could add a container field next to the chart so that you see the chart with the image of it next to it. Otherwise, you might need to investigate alternatives to using the chart object. Much depends on how your data is set up and how want to use that image. Long before we had a chart object, we were using container fields as "squares" in simple barcharts so if you want to use hammer thumbnails to make the bar, this is still possible.