CREATING OPTICAL ILLUSIONS. 1st ESO

We have been talking about Visual Perception.
Now, it's time to start creating Optical Illusions using your camera.

I suggest you to shoot 1 or 2 pictures playing with your perception.  The aim is getting real images with an unreal appearance.  Something like this:

You can get inspired by other images like these ones. 
Send your pictures by email.

PHOTO EFFECTS ONLINE. 2nd ESO

There are some photo editors online that let apply photo effects, edit, enhance, filter pictures and photos.

BEFUNKY
Free photo editor online.  Very easy to use, with no signup necessary.  You can upload and save your pictures in your computer.  The picture can be converted in a drawing, an oilpainting, and old photo, a cartoon...  Hundreds of possibilities!

In the left side there is a menu with all the options:  edit, effects, artsy (art effects), frame, text and goodies. Going to effects, you can transform the picture in a black and white drawing (B&W), a charcoal drawing, change the colours, apply pop-art style, etc.

For example, we can apply "old photo" in "effects":

 The result could be such as this:

Or if we apply "charcoal":

You can also try to transform a selfportrait and you're going to get something like that: