This week we talked about image compression. The differences between lossy and lossless compression was explained. Compression ratio vs quality was covered, which will be a large part of our assingment 2.This will involve a report on the trade-off between size and quality in JPEG and GIF images.
We talked about how to effectively reduce the number of colors in an image to a significant degree without having it look blocky. This can be done by either using the closest color available to the deleted one in our reduced palet,( color look up table). Dithering is also useful in that it prevents banding of colors.