Category: relation between pixels

relation between pixels

Sobel Operator

Sobel Operator

The Sobel operator is an algorithm for edge detection in images. Edge detection for those who are not familiar with the term, is an image processing technique to discover the boundaries between regions in...

Color depth

Color depth

Color depth is either the number of bits used to indicate the color of a single pixel, in a bitmapped image or video frame buffer, or the number of bits used for each color...

Euclidean distance

Euclidean distance

The Distance Formula Very often, especially when measuring the distance in the plane, we use the formula for the Euclidean distance. According to the Euclidean distance formula, the distance between two points in the...

connectivity and path

connectivity and path

Paths A path from pixel p with coordinate (x, y) with pixel q with coordinate (s, t) is a sequence of distinct sequence with coordinates (x0, y0), (x1, y1), ….., (xn, yn) where :...

m-adjacency

m-adjacency

Two pixels p and q with values from V are m-adjacent if :   1. q is in the set N4(p), or 2. q is in the set ND(p) and the set N4(p)∩N4(q) has...

pixels adjacency

pixels adjacency

Two pixels are adjacent if they are neighbors and their intensity level satisfies some specific criteria of similarity. Example (for binary images): In binary images, 2 pixels are adjacent if they are neighbors &...

8-neighbors of a pixel

8-neighbors of a pixel

The points ND(P) and N4(P) are together known as 8-neighbors of the point P, denoted by N8(P). Some of the points in the N4, ND and N8 may fall outside image when P lies...

Neighbors of a Pixel

Neighbors of a Pixel

Horizontal and Vertical neighbors Any pixel p(x, y) has two vertical and two horizontal neighbors, given by : (x+1, y), (x-1, y), (x, y+1), (x, y-1)   This set of pixels are called the...