What is the relationship among pixels, resolution and size?

Pixel is the smallest photosensitive unit on the photosensitive device (CCD or COMS) of digital camera.

Resolution, the general resolution is the resolution of the screen, and the display resolution is the number of pixels displayed on the screen, such as 800*640, 800 pixels horizontally and 640 pixels vertically. The units that describe the resolution are: (dpi dots per inch), lpi (lines per inch) and ppi (pixels per inch).

The size and diagonal length of the screen.

Extended data:

Principle:

Several other concepts, such as voxel, texture element and surface element, are all derived from the concept of pixel and used in other computer graphics and image processing applications.

Dots are sometimes used to represent pixels, especially for computer marketers, and most of the time they are represented by DPI (dots per inch). We can say that the pixels in a visible image are pixels represented by electronic signals, pixels represented by numbers, pixels on a display, or pixels in a digital camera (photosensitive element).

Many other examples can be added to this list, and there will be some more accurate synonyms according to the context, such as pixel, sampling point, byte, bit, point, point, superset, triple, edge set, window and so on.

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