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477 B
477 B
Image Representation
- image is composed of discrete pixels
- image size:: total number of pixel in vertical line x total number of pixels in horizental line
it does not specify the size of the image
```ad-ex
A 640 x 480 image would measure 6 inches by 5 inches when presented (e.g., displayed or printed) at 96 pixels per inch.
On the other hand, it would measure 1.6 inches by 1.2 inches at 400 pixels per inch.