Gradients of population density with cities
{"Image DocumentName": "Gradients of population density with cities", "Image ImageDescription": "(Gradient analysis) Two notable features. (1) Absence of residential population in city center. (Central crater) (2) Decline of population density from inner parts of the city to its periphery.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}