Basic techniques for better images
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
Selecting the image size for use (page 12)
1 Image size: 12M
4000 pixels × 3000 pixels = 12,000,000 pixels
2 Image size: VGA
640 pixels × 480 pixels = 307,200 pixels
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-