I've playing around with the Dreamscope app on the iPad.
Some of the images that resulted from that play have been posted to Facebook.
Today was "what the heck is a 'custom filter' " day. Turns out, you tell the app to use an existing image - either from the photo library or from the camera - as a filter to apply to another image.
This is the resulting Dreamscope image:
This is the original image. It was taken last spring at the glass flower exhibition at Lauritzen Gardens in Omaha.
This image is the "custom filter". It is a kalaidescope rendering of a New Brunswick sunset.
Made a warm and rather dreamy result.