Canny edge detector: Difference between revisions

<p>Intensity gradient fields are similarly structured. Gradient values are vectors, and are represented here as complex numbers, with real and imaginary components representing down and right respectively. </p>

<p>Edge and non-edge points are represented as zeros and ones respectively. Edges are sets of connected points. Edge points within a 3-by-3 region are considered to be connected. Edges are represented as points having a common unique identifier. </p>

<lang J>NB. 2D convolution, filtering, ...