I am so very sorry for your loss. I can only say that will be the picture that comes to mind if you do see him, but you may need that for closure.
For myself, I choose not to at funerals b/c I don't want that to be the last image I see of someone. It's just a personal preference, and I have never been in a similar situation such as this.
Many hugs to you. We will be here for you and support you regardless!