Updated AffineTransform docstring to mention it uses the inverse matrix

This commit is contained in:
Andrew Murray 2025-02-06 19:26:49 +11:00
parent 2810d7c6ba
commit 41861e8e9f

View File

@ -48,9 +48,9 @@ class AffineTransform(Transform):
Define an affine image transform.
This function takes a 6-tuple (a, b, c, d, e, f) which contain the first
two rows from an affine transform matrix. For each pixel (x, y) in the
output image, the new value is taken from a position (a x + b y + c,
d x + e y + f) in the input image, rounded to nearest pixel.
two rows from the inverse of an affine transform matrix. For each pixel
(x, y) in the output image, the new value is taken from a position (a x +
b y + c, d x + e y + f) in the input image, rounded to nearest pixel.
This function can be used to scale, translate, rotate, and shear the
original image.
@ -58,7 +58,7 @@ class AffineTransform(Transform):
See :py:meth:`.Image.transform`
:param matrix: A 6-tuple (a, b, c, d, e, f) containing the first two rows
from an affine transform matrix.
from the inverse of an affine transform matrix.
"""
method = Image.Transform.AFFINE