1
Q
what is spatial sampling
A
taking a subset of data from a larger geographic area and making inferences or predictions based on this area
2
Q
sampling vs quantisation
A
sampling digitizes the coordinated of the function whereas quantisation digitises the functions amplitude
3
Q
what are the 3 types of image?
A
- Binary => 0 or 1
- Grey scale =>0–>255 one intensity value per pixel
- Colour images => 0–>255 x3 values per colour channel (red,green,blue)
4
Q
Image histograms
A
depict how the intensities of the pixels of an image are distributed
