Comparing Gif and JPeg 1 Varying JPEG Quality High Quality Low - PowerPoint PPT Presentation

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Comparing Gif and JPeg 1 Varying JPEG Quality High Quality Low Quality 2 Friday, November 4, 2011 Comparing png with JPEG on Graphical Art png - 61 KB High quality JPEG 201 KB Low quality JPEG 25 KB 3 How Many RGB Colors are There?

Comparing Gif and JPeg 1 Varying JPEG Quality High Quality Low Quality 2 Friday, November 4, 2011
Comparing png with JPEG on Graphical Art png - 61 KB High quality JPEG 201 KB Low quality JPEG 25 KB 3 How Many RGB Colors are There? 256 Red 4 Friday, November 4, 2011
How Many RGB Colors are There? 256 Red * 256 Green = 65,536 Red/Green combinations 5 How Many RGB Colors are There? 256 Red * 256 Green * 256 Blue = 16,777,216 Red/Green/Blue combinations My display only has 2,304,000 pixels!! 6 Friday, November 4, 2011
Would you notice if 1/2 the colors were missing? 256 shades of red 128 shades of red 7 Hiding a Text Message Red = 255, Green = 255, Blue = 0 11111111 11111111 00000000 M 01001100 11111110 11111111 00000000 Red = 254, Green = 255, Blue = 0 8 Friday, November 4, 2011

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