I gave out some sample exam questions on dithering. But they didn't mean anything because none of the students in class today were in for the last class. Students should catch up using the videos online, and we will come back to those questions if we get time.
We used Photoshop to convert an image to indexed colour. Students downloaded various images and experimented with different settings [but didn't use dithering].
I met with students to discuss their research reports. All the students I spoke to had committed to a topic or were close to doing so. There isn't really much time to delay.
We used Photoshop to experiment with different resolutions and pixel depths. I asked students to download a large image and to do some messing about of their own