COMP6021 Classes 12.3 & 12.4

Students worked on the assignment

COMP6021 Class 12.1

I answered students' questions.

COMP6021 Classes 11.2 & 11.3

Students worked on the assignment

COMP6021 Class 11.2

Students had questions about dithering questions on past papers so we worked through them

COMP6021 Class 11.1

I helped students with the assignment.

COMP6021 Classes 10.3 & 10.4

Students worked on the assignment

COMP6021 Class 10.2

Only one student turned up and he didn't have any questions

COMP6021 Class 10.1

Nobody turned up

COMP6021 Classes 09.3 & 09.4

I met with students and reviewed how the assignment is going

COMP6021 Class 09.2

looked at how audio is represented digitally.

We looked at Audacity. Although I wasn't able to show students everything that I wanted.
Instead, here are some I made earlier:

Audio Samples

	16 bps	8 bps
22kHz	audio	audio
11kHz	audio	audio
6kHz	audio	audio

This is also a useful resource:

http://manual.audacityteam.org/manual/o/man/digital_audio.html

COMP6021 Class 09.1

We looked at how 3d images work.

I brought some glasses and we looked at some images. We tried to watch Bjork's 3d video but the wifi wasn't happy. So students used their own machines.
https://vimeo.com/101561454

3d will not be on the summer exam.

COMP6021 Class 08.4 Interlaced Video

I explained interlaced video and how it causes problems for modern displays.

When I was finished talking students worked on the assignment.

COMP6021 Class 08.3 Bock Matching Algorithms

We looked at Block Matching Algorithms (BMAs) and how they contribute to the asymmetry of video compression.

COMP6021 Class 08.2

We looked at video compression

COMP6021 Class 08.1

We looked at transparency and PNG.

Interesting videos about Animated GIFs

Is it GIF or JIF?

COMP6021 Class 07.3

We looked at how JPEG works

When I was finished, students used the time to catch up in the dithering stuff they missed

The video below may also be of use

COMP6021 Class 07.2

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.

I talked a bit about the assignment 

We looked at GIF

COMP6021 Class 07.1

We looked at dithering.

We looked at dithering in Photoshop on a 10x10 pixel image. Students The student did some experiments with dithering in Photoshop.

This video might also be useful

COMP6021 Class 06.4

We used Photoshop to convert an image to indexed colour. Students downloaded various images and experimented with different settings [but didn't use dithering].

In the next class we will look at dithering.