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 picture 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: 8M (DSC-W90 only)

 

 

 

3264 pixels × 2448 pixels = 7,990,272 pixels

 

 

 

2 Image size: 7M (DSC-W80/W85 only)

 

 

 

3072 pixels × 2304 pixels = 7,077,888 pixels

 

 

Pixels

 

 

3 Image size: VGA

 

 

640 pixels × 480 pixels = 307,200 pixels

 

 

 

 

Selecting the image size for use (page 11)

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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