How to test if an image is empty?

[Scott Rossi]

Recently, Tiemo Hollmann TB wrote:

> when I put empty into img "foo" the imagedata of img "foo" is still not
> empty, there are still any binary data in the image.
> 
> I can't test if the imagedata of img "foo" is empty" nor can I test if the
> img "foo" is empty. How can I test if I have put empty into an image? Can I
> test it binary?

To "truly" empty an image, I set the text property of the image to empty,
and also check that property to make sure it's empty.

  return (the text of img 1 is empty)

Regards,

Scott Rossi
Creative Director
Tactile Media, UX Design