chapter
2 Pages

Touching up Your Pictures

Pixels, Dots and DPI

Pixels, Dots and DPI Picture files on your computer are made up of lots of little dots, called pixels. Hold an 8x magnifying glass up to your computer screen. You’ll see them. Color pictures are made of red, green and blue pixels, arranged side by side. Black and white photos on a color monitor are still displayed with the same color pixels, but they are blended to look like shades of gray.