Understanding Digital Photography

A computer

A special camera with light-sensitive film

A digital camera

A smartphone

To store images

To charge the camera battery

To print photos

To convert light into electronic data

Plastic

Metal

Silicon

Glass

By using a single color filter

By using a Bayer array with colored filters

By converting images to black and white

By measuring all photons at once

Green is the easiest color to capture

Green pixels are cheaper to produce

Our eyes are more sensitive to green light

Green light is more abundant

To increase image resolution

To blend primary colors together

To convert images to black and white

To compress image files

To reduce file size for easier sharing

To increase color depth

To convert images to grayscale

To enhance image quality

PNG

TIFF

GIF

JPEG

The image becomes clearer

The image becomes pixelated

The file size increases

The image becomes black and white

To enhance color accuracy

To increase upload speed

To save on storage costs

To improve image quality