from_lt

acstools.utils_calib.from_lt(rsize, ltm, ltv)

Compute the corner location and pixel size in units of unbinned pixels.

Note

Translated from calacs/lib/fromlt.c.

Parameters:

rsizeint

Reference pixel size. Usually 1.

ltm, ltvtuple of float

See get_lt().

Returns:

bintuple of int

Pixel size in X and Y.

cornertuple of int

Corner of subarray in X and Y.