We looked at compression, interpolation, indexed colour and dithering.
After class the class rep told me that some students were concerned because I had flagged blog posts that needed attention, but had not detailed exactly what was wrong with them. In almost all of those cases there problems were errors of spelling or grammar. Blog posts with incorrect spelling and grammar will get low marks. However, it it up to each student check the blog posts for errors. I did that for the first week, so that each student was aware of the kinds of errors he or she was making. But I won't be doing that for subsequent posts. Furthermore, the absence of a comment from me is not an indication that it was perfect.
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