def _get_resize_size_and_scale(
w,
h,
target_size,
min_size=None,
max_size=None,
keep_aspect_ratio=True,
resize_side="shorter",
):
if keep_aspect_ratio:
assert isinstance(target_size, int)
aspect_ratio = float(min((w, h))) / float(max((w, h)))
(
min_res_size,
max_res_size,
) = image_test_util.compute_keep_aspect_ratio_resized_size(
target_size, min_size, max_size, aspect_ratio, resize_side
)
if w < h:
res_w = min_res_size
res_h = max_res_size
else:
res_w = max_res_size
res_h = min_res_size
else:
assert isinstance(target_size, (list, tuple))
assert len(target_size) == 2
assert all(isinstance(size, int) for size in target_size)
res_w, res_h = target_size
scale_w = res_w / w
scale_h = res_h / h
return (res_w, res_h), (scale_w, scale_h)
def _get_target_resize_size(w, h, target_size, max_size):
aspect_ratio = float(min((w, h))) / float(max((w, h)))
(
min_res_size,
max_res_size,
) = image_test_util.compute_keep_aspect_ratio_resized_size(
target_size, None, max_size, aspect_ratio, "shorter")
if w < h:
res_w = min_res_size
res_h = max_res_size
else:
res_w = max_res_size
res_h = min_res_size
scale_w = res_w / w
scale_h = res_h / h
return ((res_w, res_h), (scale_w, scale_h))