Digital Imaging Tutorial.
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Transcript of Digital Imaging Tutorial.
Joe Smithdesigner, developer
Saturday, March 3, 12
1px by 1px1 pixel24 bit colorRGB
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2px by 2px4 pixels24 bit color
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14px by 14px196 pixels24 bit color
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40px by 40px1,600 pixels24 bit color
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110px by 110px12,100 pixels24 bit color
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230px by 230px52,900 pixels24 bit color
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630px by 630px396,900 pixels24 bit color
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2,636px by 3,923px10,341,028 pixels24 bit color
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24 bit color
110px by 110px12,100 pixels
8 bit color1 bit color
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1 Bit Colordigital color is binary
one’s and zeros 010101
21 = 2 colors
8 Bit Color28 = 256 colors
24 Bit Color224 = 16,777,216
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1 bit color2 colorsblack and white
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RGBRed (256 variants)
256x 256x 256
16,777,216
Blue (256 variants)Green (256 variants)
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CyanMagentaYellowBlack
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Printing on paper with a limited number of colors
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Digital Prints are confined to Dots Per InchDPI
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DPILPIPPI
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630px by 630px396,900 pixels24 bit color
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Macbook Pro 15 inch (diagonal) 13 inches wide 1440 pixels wide ~110 ppi
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iPad 2 1024 by 768 132 ppi
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iPhone 3gs480 by 320163 ppi
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iPhone 4gs 960 by 640326 ppi
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Adobe Photoshopfor resampling images
Target Size800 by 800 pixels
@72 ppi
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