There is an update on the IPhone now that allows you to quickly and easily remove the background from any photo.
For example. The background in this photo is white, but there are shadows, and the ruler.
1. To remove the background on your IPhone, simply hold your finger on the subject until a white line races around the edges and “copy or share” shows up. Like in the video below
FullSizeRender.MOV
2. Click on “share” and scroll down to “save image” and that’s it.
Look in your photos and you will have a photo of your fossil with the background removed like this.
It has done quite a nice job at picking out all those cusps and serrations.
Have fun. And it might be fun if people feel inclined to post some results of their experiments with this technique.