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from PIL import Image
import torchvision.transforms.functional as TF
from torchvision.transforms import InterpolationMode
from .view_base import BaseView
class Rotate90CWView(BaseView):
def __init__(self):
pass
def view(self, im):
# TODO: Is nearest-exact better?
return TF.rotate(im, -90, interpolation=InterpolationMode.NEAREST)
def inverse_view(self, noise):
return TF.rotate(noise, 90, interpolation=InterpolationMode.NEAREST)
def make_frame(self, im, t):
im_size = im.size[0]
frame_size = int(im_size * 1.5)
theta = t * -90
frame = Image.new('RGB', (frame_size, frame_size), (255, 255, 255))
centered_loc = (frame_size - im_size) // 2
frame.paste(im, (centered_loc, centered_loc))
frame = frame.rotate(theta,
resample=Image.Resampling.BILINEAR,
expand=False,
fillcolor=(255,255,255))
return frame
class Rotate90CCWView(BaseView):
def __init__(self):
pass
def view(self, im):
# TODO: Is nearest-exact better?
return TF.rotate(im, 90, interpolation=InterpolationMode.NEAREST)
def inverse_view(self, noise):
return TF.rotate(noise, -90, interpolation=InterpolationMode.NEAREST)
def make_frame(self, im, t):
im_size = im.size[0]
frame_size = int(im_size * 1.5)
theta = t * 90
frame = Image.new('RGB', (frame_size, frame_size), (255, 255, 255))
centered_loc = (frame_size - im_size) // 2
frame.paste(im, (centered_loc, centered_loc))
frame = frame.rotate(theta,
resample=Image.Resampling.BILINEAR,
expand=False,
fillcolor=(255,255,255))
return frame
class Rotate180View(BaseView):
def __init__(self):
pass
def view(self, im):
# TODO: Is nearest-exact better?
return TF.rotate(im, 180, interpolation=InterpolationMode.NEAREST)
def inverse_view(self, noise):
return TF.rotate(noise, -180, interpolation=InterpolationMode.NEAREST)
def make_frame(self, im, t):
im_size = im.size[0]
frame_size = int(im_size * 1.5)
theta = t * 180
frame = Image.new('RGB', (frame_size, frame_size), (255, 255, 255))
centered_loc = (frame_size - im_size) // 2
frame.paste(im, (centered_loc, centered_loc))
frame = frame.rotate(theta,
resample=Image.Resampling.BILINEAR,
expand=False,
fillcolor=(255,255,255))
return frame
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