How many millimeters is one pixel?

How many millimeters is one pixel?

Pixel is only the basic coding of basic prochrome and its gray level, not size and length
Generally speaking, the pixel density, such as 300x300 PPI image resolution, means that the number of pixels per inch in the horizontal and vertical directions is 300. It can also be expressed as 90000 (300x300) pixels in a square inch. The higher the pixel density, the higher the resolution, and the greater the magnification of the image (but it does not mean the clarity, because the magnification does not mean that the image will be clear after magnification, Therefore, the purchase of a digital camera should not be based on pixels only, but on the size of imaging elements, lens quality and machine performance
Another kind of DPI belongs to the printing resolution. The printer resolution refers to the dot per inch (DPI), which is an important standard to measure the printing quality, Generally, the resolution of printers used by home users and small and medium-sized office users should be at least between 300dpi and 720dpi, but the larger the DPI, the better

How many pixels is a millimeter

It is related to resolution
1 cm = 0.3937 in
1 inch = 2.54 cm
72 pixels / inch = 28.346 pixels / cm
300 pixels / inch = 118.11 pixels / cm

How many pixels is a millimeter

Pixel that popular point is a point, there is a single color point!
Today's display is usually 1024 × 768 resolution, which means that there are 1024 pixels in the length of the current display, that is, there are 1024 points that can display color, and there are 768 such points in the height!
In fact, the easiest way to understand the pixel is to enlarge the part of the picture, you can see that these pictures are actually composed of some single color points!