Question

6 a Nancy has captured images of her holiday with her camera.

The captured images are stored as digital photo files on her camera.
Explain how the captured images are converted to digital photo
files.
b Nancy wants to email photos to Nadia.
Many of the photos are very large files, so Nancy needs to reduce
their file size as much as possible.
Identify which type of file compression would be most suitable
for Nancy to use. Explain your choice.

Answer 1

Captured images are converted to digital photo files through image digitization. The most suitable type of file compression for reducing file size is JPEG compression.

Step-by-step explanation:

a) The captured images are converted to digital photo files through a process called image digitization. In this process, the camera's image sensor converts the light captured by the camera lens into electrical signals. These signals are then processed and compressed to create a digital photo file format, such as JPEG or PNG.

b) For reducing the file size of the photos, Nancy can use lossy compression. Lossy compression algorithms discard some of the less important data in the image, resulting in a smaller file size. The most suitable type of lossy compression for Nancy to use would be JPEG compression as it is widely supported and provides good compression ratios while maintaining satisfactory image quality.

Learn more about Digital photo file conversion