The Science of a Selfie

The video explains how digital cameras in smartphones work, from capturing light to producing images. It covers the role of CMOS sensors in converting light into electronic data, the process of detecting colors using a Bayer array, and the steps involved in image processing and compression. The video highlights the technological advancements that allow for quick and efficient image capturing and sharing.

What is the primary function of a CMOS sensor in a digital camera?

• To store images

• To convert light into electronic data

• To print photos

• To charge the camera battery

How do CMOS sensors detect brightness in an image?

• By measuring the color of light

• By counting the number of pixels

• By measuring the charge created by photons

• By adjusting the camera lens

What is the purpose of a Bayer array in digital cameras?

• To increase the camera's battery life

• To add color to images

• To enhance image brightness

• To reduce image noise

Why is JPEG compression commonly used for images on the web?

• It adds more colors to images

• It simplifies image data for smaller file sizes

• It makes images larger

• It increases image quality

What is the role of demosaicing in digital photography?

• To convert images to black and white

• To blend primary colors together

• To increase image resolution

• To adjust the camera's focus