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Add scale param to resize

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This commit is contained in:
SimoneDeGasperis 2024-08-18 17:11:56 +02:00
parent eeb3d04843
commit f6df61dc37
1 changed files with 10 additions and 0 deletions
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10
src/PIL/Image.py
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@ -2219,6 +2219,7 @@ class Image:
def resize( def resize(
self, self,
size: tuple[int, int] | list[int] | NumpyArray, size: tuple[int, int] | list[int] | NumpyArray,
scale: float | None = None,
resample: int | None = None, resample: int | None = None,
box: tuple[float, float, float, float] | None = None, box: tuple[float, float, float, float] | None = None,
reducing_gap: float | None = None, reducing_gap: float | None = None,
@ -2228,6 +2229,9 @@ class Image:
:param size: The requested size in pixels, as a tuple or array: :param size: The requested size in pixels, as a tuple or array:
(width, height). (width, height).
:param scale: An optional scale factor to upsample/downsample the image:
(e.g. 0.5 means that an image (width, height) will be
resized to (width/2, height/2)). If provided overwrite size.
:param resample: An optional resampling filter. This can be :param resample: An optional resampling filter. This can be
one of :py:data:`Resampling.NEAREST`, :py:data:`Resampling.BOX`, one of :py:data:`Resampling.NEAREST`, :py:data:`Resampling.BOX`,
:py:data:`Resampling.BILINEAR`, :py:data:`Resampling.HAMMING`, :py:data:`Resampling.BILINEAR`, :py:data:`Resampling.HAMMING`,
@ -2287,6 +2291,12 @@ class Image:
msg = "reducing_gap must be 1.0 or greater" msg = "reducing_gap must be 1.0 or greater"
raise ValueError(msg) raise ValueError(msg)
if scale:
size = (
int(self.width * scale),
int(self.height * scale)
)
self.load() self.load()
if box is None: if box is None:
box = (0, 0) + self.size box = (0, 0) + self.size