New and innovative ways to better use the iPad in teaching!
The other day I showed one of my classes a picture of me jumping in front leaning tower of Pisa from a few years ago. Since this was a group that I had introduced green screening (in video editing) to, some of them thought that I had just superimposed myself onto a “fake” background.
The photo is real, but using this tool, called Instant Alpha, you could essentially recreate anyone jumping in front of any famous landmark.
How to use Instant Alpha:
That's it! Give it a try and it will become second nature.
This will also work very well for text over images as well.
Obviously the results will not be perfect and not comparable to what you can do on more robust programs like Photoshop, but for the average person, it will be just fine. You may be able to notice in my video below that the images still have a tiny bit of white around them. After spending a little more time afterwards, I was able to remove more of it.
Here is a short video I created showing the process:
Instant Alpha will work great especially if you want to place your cropped image on top of another.
One thing we are not able to do is save the cropped image as an actual image. You can copy it onto your clipboard and paste it onto another app though. I was able to successfully crop an image in Pages, copy it, and paste it into a Keynote presentation.
I completed the steps in Pages (on the left), and directly copied it to Keynote on the right:
I think this can be a powerful presentation tool to easily make great graphics, both for Keynote presentations, Pages documents and other apps as well. Students, once taught this, will be able to create both digital and physical presentations. The ideas for posters for projects are limitless. Remember, once you create a good “slide”, you can take a screenshot of it and proceed to crop it afterwards.
Special thanks to my good friend and colleague Matt Przybylski (@iphysed) for introducing me to this feature and encouraging me to share it on teachingwithipad.org.
Have you tried this feature yet? Can you think of how this will be useful for you?