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Docstrings, typehints, and clarifications in PiCamera and its utils

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This commit is contained in:
Julian Stirling 2025-06-25 17:18:55 +01:00
parent 83e0e08ccc
commit ee8c58c99f
2 changed files with 119 additions and 23 deletions
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16
src/openflexure_microscope_server/things/camera/picamera_recalibrate_utils.py
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@ -326,10 +326,11 @@ def channels_from_bayer_array(bayer_array: np.ndarray) -> np.ndarray:
return channels
def get_16x12_grid(chan: np.ndarray, dx: int, dy: int):
def get_16x12_grid(chan: np.ndarray, dx: int, dy: int) -> np.ndarray:
"""Compresses channel down to a 16x12 grid - from libcamera
This is taken from https://git.linuxtv.org/libcamera.git/tree/utils/raspberrypi/ctt/ctt_alsc.py
This is taken from
https://git.linuxtv.org/libcamera.git/tree/utils/raspberrypi/ctt/ctt_alsc.py
for consistency.
"""
grid = []
@ -347,7 +348,7 @@ def get_16x12_grid(chan: np.ndarray, dx: int, dy: int):
return np.reshape(np.array(grid), (12, 16))
def upsample_channels(grids: np.ndarray, shape: tuple[int]):
def upsample_channels(grids: np.ndarray, shape: tuple[int]) -> np.ndarray:
"""Zoom an image in the last two dimensions
This is effectively the inverse operation of `get_16x12_grid`
@ -452,14 +453,19 @@ def set_static_lst(
alsc["luminance_lut"] = as_flat_rounded_list(luminance, round_to=3)
def set_static_ccm(tuning: dict, c: list) -> None:
def set_static_ccm(
tuning: dict,
col_corr_matrix: tuple[
float, float, float, float, float, float, float, float, float
],
) -> None:
"""Update the `rpi.alsc` section of a camera tuning dict to use a static correcton.
`tuning` will be updated in-place to set its shading to static, and disable any
adaptive tweaking by the algorithm.
"""
ccm = Picamera2.find_tuning_algo(tuning, "rpi.ccm")
ccm["ccms"] = [{"ct": 2860, "ccm": c}]
ccm["ccms"] = [{"ct": 2860, "ccm": col_corr_matrix}]
def get_static_ccm(tuning: dict) -> None: