Parameters

gradient_columns : ndarray

First order image gradients (rows).

gradient_rows : ndarray

First order image gradients (columns).

cell_columns : int

Pixels per cell (rows).

cell_rows : int

Pixels per cell (columns).

size_columns : int

Number of columns.

size_rows : int

Number of rows.

number_of_cells_columns : int

Number of cells (rows).

number_of_cells_rows : int

Number of cells (columns).

number_of_orientations : int

Number of orientation bins.

orientation_histogram : ndarray

The histogram array which is modified in place.

Extract Histogram of Oriented Gradients (HOG) for a given image.

Examples

See :

Local connectivity graph

Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.

Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)

SVG is more flexible but power hungry; and does not scale well to 50 + nodes.

All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them

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