Thanks Teju for your response,
1.I don't know i am unable to see the image in the dashboard or worksheet. it shows blank.
2.With out button can we click on the image and hover to another dashboard of another workbook not the same workbook .
Yes, you need to bring an image to the dashboard. Copy the URL of the workbook you need this to be redirected to. Click on the drop down of the image and select set URL. Paste the URL of the workbook. Whenever you click on the image it redirects to the workbook.