Pixels to Pictures
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
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
Working with Digital Images
Options for doing things with digital image files
• We can manipulate the part of the file that determines the arrangement of the pixels
• We can manipulate the values of the pixels themselves
• Change the arrangement and values of the pixels
• Leave the pixel positions the same but change their value based on their position
• Leave the pixel positions the same but change their values based on the values of nearby pixels testing 1 2 3 4 5 6 7 8
