Pixels to Pictures
Introduction 3 steps 1 pixel Hexadecimal
Introduction 3 steps 1 pixel Hexadecimal
Red-Green-Blue
Colors from 0-255 17 million colors More pixels = better Two parts of a file Overview Options Pixel positions Pixel values Brightness Brightness example Contrast Contrast example Color Color example ND grad Sharpen Blur Acquiring an image Scanners Scanner specs Resolution Bit depth & DMAX Other Digital cameras Sensor types Digicam pixels Four into one Interpolation More sensors Print size Output What is resolution? Dots vs. pixels Printer resolution Output resolution Print size 2 Enlarging Formats Conclusion Links Software
Breaking the pixel code
• The first two digits represent the amount of red in the pixel.
• The second two represent green.
• The last two represent blue.
• There are 255 possible combinations for each pair.
FF0000 is pure Red. |
FFFF00 is pure Yellow. |
00FF00 is pure Green. |
00FFFF is pure Cyan. |
0000FF is pure Blue. |
FF00FF is pure Magenta. |
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RED |
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GREEN |
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BLUE |
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This color in this box is that represented by the hexadecimal number 47C3ED above. |
