The image resolution is determined by the image length (2 x radius) and the size in pixels. This allows us to maintain the location as the center point of the image. Refer to the examples below as an illustration of how radius and size values determine image resolution.
radius: 10 m
length: 20 m
size: 100x100 px
pixel size: 5 m
radius: 10 m
length: 20 m
size: 1000x1000 px
pixel size: 0.05 m