Basic techniques for better images

Quality

On “image quality” and “image size”

 

 

 

A digital image is made up of a collection of small dots called pixels.

If it contains a large number of pixels, the image becomes large, it takes up more memory, and the image is displayed in fine detail. “Image size” is shown by the number of pixels. Although you cannot see the differences on the screen of the camera, the fine detail and data processing time differ when the image is printed or displayed on a computer screen.

Description of the pixels and the image size

1Image size: 10M

3648 pixels × 2736 pixels = 9,980,928 pixels

2 Image size: VGA

640 pixels × 480 pixels = 307,200 pixels

Pixels

Selecting the image size for use (pages 13, 27, 30)

Pixel

Many pixels (Fine

image quality and

 

 

 

 

 

 

 

 

large file size)

 

 

 

 

 

 

 

 

 

 

Few pixels (Rough image quality but small file size)

Example: Printing in up to A3+ size

Example: An attached image to be sent by e-mail

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