Question

what is the density of pixels in an image​

Answer 1

Answer:

PPI" or "pixel density" may also describe image scanner resolution. In this context, PPI is synonymous with samples per inch. In digital photography, pixel density is the number of pixels divided by the area of the sensor. A typical DSLR, circa 2013, has 1–6.2 MP/cm2; a typical compact has 20–70 MP/cm2.

Answer 2

Answer:

Pixel density is a calculation that returns the number of physical pixels per inch on a screen or display of a device. It's often referred to as Pixels Per Inch or PPI. Pixel density has become increasingly important as the resolution of screens has increased dramatically in the past several years.