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<img width=400 height=120 src="figs/png.C3.png" alt="Figure C-3" /><br>
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<b>Figure C-3:</b> <i>Effects of JPEG compression on sharp-edged
features. In the upper half, note the regions of darker blue,
the lighter echos around the white text, and the faint pinkish
areas (for example, in the curve of the ``P''); the lower half has
numerous dark echos around the text, bands of yellow above and below
it, and very dark spots in some of the letters (particularly the
``s''). Even at a</i> very <i>low quality setting (for emphasis),
the JPEG is three times as big as the completely lossless PNG
version.</i>
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