
The task here was to give some examples of the same image using aliased and anti-aliased text. Again, I had to start with 16M colors to accomplish this. In this part of the homework, I am using a different example graphic, as I am sure you are quite tired of looking at the old one.
Anti-alias is a technique used to blend the edges of a graphic image. When a graphic is depicted using pixels, the edges of lines look ragged because of the pixel spacing. By adding intermediate colors in the adjacent pixels, antialias produces a smoother looking line in the image.
Let's look at the overall view. To the left is aliased and antialiased JPEG text. To the right is aliased and antialiased GIF text.
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Notice that both examples of JPEG text look slightly fuzzy and the color is not pure. In the GIF text, it is clear that the anti-aliased sample offers the sharpest looking text.
Now the closeup view. Notice that the area around BOTH of the JPEG examples is "dirty" or smudged in appearance. It seems that the JPEG format adds more color variations to smooth out the picture. Whereas the GIF does not.
Now On To Bezier Curves