COMP6021/COMP6023 JPEG

Here's an online video I made some time about about JPEG. It is largely the same as what we did in class.

This rather unusual logo has it origins in the way JPEG works.

COMP6023 Essay title errors and omissions

Today I corrected any errors in the essay choices of which I was made aware.

Students may no longer chose a topic. That choice was made for them some time ago.

However, if you made a choice, advised me of it, and the list does not reflect that please let me know and I will try to find the e-mail you sent me.

Please check the list to ensure that the blog URL and essay title are correct.

COMP6023 DCOM1 Class 25 Subsampling, Indexed Colour & Dithering

[no recording today]

We looked at subsampling and interpolation. We saw how 24 bit images can be coded with fewer bits per pixel by using a well chosen palette. We played a palette matching game.

I explained how dithering works and students did an exercise on dithering. There are more such exercises in the notes, for students interested in doing more.

COMP6023 DCOM1 Class 24

We looked at the Lab and CMYK colour systems.

We finished a bit earlier than usual. I wasn't keeping an eye on the time. It felt longer. I guess I was tired :-)

COMP6023 DCOM1 Class 23 & 24

Students worked on their blogs and on assignment 2

COMP6023 Add author to your blog

For this weeks blog post students are expected to guest post on someone else's blog. To allow someone to be an author on your blog, you must first invite them.

Take care not to make your guest an Administrator of your blog. That will give him or her total control. Author is enough.

COMP6023 Assessment Update

Essay

If you didn't send me your choice of essay title, one has been assigned to you. You can check the blog list to see what you got.

If you don't like the title you were assigned you will not be assigned another. There was plenty of time to make a choice. If you believe that you sent me your choice some time ago, and that I missed it, let me know and I will have a look.

This part of the process has taken so long that submission of a draft will not be compulsory. However it is still recommended. Details of how to submit will follow soon.


Blogs

I propose to begin correcting the blog posts for week 2-5 this week. If you need to correct errors and omissions in those weeks you have very little time in which to do so.

COMP6023 DNET1/COM1c Class 22

I did a quick recap of HSB, RGB, Lab

We looked at CMYK.

We looked at Indexed colour and palette selections for different images.

COMP6023 DCOM1 Class 21

We looked at digitising grey scale images an looked at coding colour. I explained the HSB and RGB colour systems.

We will look at the Lab system in the next class.

COMP6023 Review of Week 04 / Preview of Week 05

Review

This was a slow week I felt. We didn't do much technically, although maybe the conversations about privacy were worthwhile.

Hopefully those students who need to work on their writing skills are aware of that now.

Students should complete the NewsU online course and post some thoughts on that for the blog this week. Quite a number of students have yet to complete the course. Failure to do so by Sunday evening will very likely cost students some marks. We will return to some of the issues covered by the NewsU course later in the module.

Preview

Next week we will begin our look at Search Engine Optimization(SEO) in earnest.

I won't be able to make the DNET1/COM1c class on Tuesday at 1400 as I have a meeting I must go to.

For next week's blog post students must write a book review. (And not the book of the movie  reviewed last week)

COMP6023 DCOM1 Class 14

I asked students to consider the privacy issues they had identified in the past, and see if they could classify and group them into 5 or 6 categories.

This was probably the most interesting class I've given this academic year so far. And allI had was a marker. I wonder is there something to be said for going commando and leaving the laptop in my office.

COMP6023 DCOM1 Class 13

We looked a bit more at how search engines work.

I asked students to discuss for a few minutes the kinds of things Google might know about them. But of course many of those things are not things that one shares in class.

We looked at advanced searches using Google's syntax.

COMP6023 DNET1/COM1c Class 13

We continued our look at how search engines index sites.

I asked students to discuss for a few minutes the kinds of things Google might know about them. But of course many of those things are not things that one shares in class.

We looked at advanced searches using Google's syntax.

[No recording of today's class]

COMP6023 Week 03 Summary

The plan to do an olde school FTP session to a UNIX machine didn't work. The Windows security systems thought we were trying to bypass the local firewalls. We might try again another time.

Students got the images they needed for Assignment 2. Some were able to make a start on gather the data using Photoshop. Others had problems with Photoshop. Those issues should be resolved in those labs by next week.

Students should write a movie review for the blog this week.

Some students have completed the NewsU course. I have marked those students with a 1 on the blog list. I'm aware that the links to the student blogs are acting strange. I haven't been able figure out what's up with the PDF. In the source document they are fine.

The most popular essay choices are booked up now. Students shouldn't take too long to decide. I may have to consider a deadline soon to move that along.

COMP6023 DCOM1 Class 10

We looked at Internet Directories and began our exploration of how search engines work.

[Stopped at Slide 42]

COMP6023 DCOM1 B Class 11 & 12 labs

We looked at Save for Web in Photoshop. Each student downloaded the three images needed for Assigment 2 and began work on saving JPEGs with different quality settings.

COMP6023 DCOM1 Class 09

We looked at some of the issues surrounding web hosting and domain names.

COMP6023 Week 03 Plan

This week I plan to

• discuss uploading a website to a server 
• get students to upload using FTP during the lab
• look at ways to promote a webiste

This week students should

• read the 10 blogs after theirs on the list and highlight any issues in a comment
• post a movie review on the blog
• start the NewsU course Online Media & the Law

COMP6023 DCOM1 Class 05

I talked about some of the suggested essay topics. For all the available information on the assessments students should check out the COMP6023 Assessment Information page over there ---->

COMP6023 DCOM1b Class 07 & 08 lab

Students worked on their blogs.

I recommended that they take the NewsU course Online Media & the Law today if they have time.

I showed students where to find quality sources in the CIT Library. The ACM and IEEE databases are the most useful for computing students.