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options.k_opt

Defines the default intrinsic camera matrix (K) using a configurable focal length.

This module exports a single function, K, which returns a 3x3 NumPy array representing the camera's intrinsic matrix based on Config.FOCAL_LENGTH.

K 

K(cfg: Config) -> np.ndarray

Return the default intrinsic parameter matrix, derived from cfg.FOCAL_LENGTH.

Parameters:

Name Type Description Default
cfg Config

The configuration object, which includes FOCAL_LENGTH.

 required

Returns:

Type Description
ndarray

A 3x3 NumPy array representing the intrinsic camera matrix.
Source code in src/page_dewarp/options/k_opt.py 
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def K(cfg: Config) -> np.ndarray:
    """Return the default intrinsic parameter matrix, derived from `cfg.FOCAL_LENGTH`.

    Args:
        cfg: The configuration object, which includes `FOCAL_LENGTH`.

    Returns:
        A 3x3 NumPy array representing the intrinsic camera matrix.

    """
    return np.array(
        [
            [cfg.FOCAL_LENGTH, 0, 0],
            [0, cfg.FOCAL_LENGTH, 0],
            [0, 0, 1],
        ],
        dtype=np.float32,
    )