Edge based segmentation is to partition an image in to regions based on

Let R represent the entire spatial region occupied by an image, Segment R into n sub regions R1 ,R2 ,....Rn , such that,

Identify the correct statements from below

1)Ri ∩ Rj  = ϕ ,for all i and j, i ≠ j

2)Q(Ri ) = True ,for i = 1,2,...n

3) Q(Ri U Rj) = True, for any adjacent regions Ri and Rj

Let R represent the entire spatial region occupied by an image, Segment R into n sub regions R1 ,R2 ,....Rn , such that,

Identify the false statement

First order derivatives generally produce ______ in an image.

Second order derivatives generally produce ______ in an image.

A ______ involves a transition between two intensity levels occurring ideally over the distance of one pixel.

The tool of choice for finding edge strength and direction at location (x,y) of image ‘f’, is the gradient of ‘f’ and defined as vector is___

The image Gradient vector points in the direction of the _____ rate of change of ‘f’ at location (x,y)

______ the histogram of an image can be used for segmenting image into sub regions.

A procedure that groups pixels or sub regions in to larger regions based on predefined criteria