Getting the name of the image

I have a form for adding an image. After I have added an image, I use the column formula to make a direct link to the image. However, the formula show up blank because it seems that the file name is generated after the photo was upload so there was no data there, to begin with. Any way to solve this?

Please add your formula into virtual column and then it should work… or if you need to have it in a normal column, you should trigger an Event action when the form is saved.