What's a Pixel?. Pix-el is a picture elementAnalog or digital Pictures composed of dotsMore Dots = better clarity. How Many Pixels is Enough?. Analog CCTV ~ 704x480 pixelsD1 /4 CIFSometimes 720x480Round vs. square pixelsStandards for MPEG4/H.264 comprssionThat's about 338,000 pixelsOr ~1/3 megapixel
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