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086dec3235
Adds suppressions to pyrefly will typecheck clean: https://github.com/pytorch/pytorch/issues/163283 Almost there! Test plan: dmypy restart && python3 scripts/lintrunner.py -a pyrefly check step 1: delete lines in the pyrefly.toml file from the project-excludes field step 2: run pyrefly check step 3: add suppressions, clean up unused suppressions before: https://gist.github.com/maggiemoss/4b3bf2037014e116bc00706a16aef199 after: INFO 0 errors (5,064 ignored) Only four directories left to enable Pull Request resolved: https://github.com/pytorch/pytorch/pull/164877 Approved by: https://github.com/oulgen
131 lines
4.2 KiB
Python
131 lines
4.2 KiB
Python
# mypy: allow-untyped-defs
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import numpy as np
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import numpy.typing as npt
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# Functions for converting
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def figure_to_image(figures, close=True):
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"""Render matplotlib figure to numpy format.
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Note that this requires the ``matplotlib`` package.
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Args:
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figures (matplotlib.pyplot.figure or list of figures): figure or a list of figures
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close (bool): Flag to automatically close the figure
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Returns:
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numpy.array: image in [CHW] order
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"""
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import matplotlib.pyplot as plt
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import matplotlib.backends.backend_agg as plt_backend_agg
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def render_to_rgb(figure):
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canvas = plt_backend_agg.FigureCanvasAgg(figure)
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canvas.draw()
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data: npt.NDArray = np.frombuffer(canvas.buffer_rgba(), dtype=np.uint8)
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w, h = figure.canvas.get_width_height()
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image_hwc = data.reshape([h, w, 4])[:, :, 0:3]
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image_chw = np.moveaxis(image_hwc, source=2, destination=0)
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if close:
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plt.close(figure)
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return image_chw
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if isinstance(figures, list):
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images = [render_to_rgb(figure) for figure in figures]
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return np.stack(images)
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else:
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image = render_to_rgb(figures)
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return image
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def _prepare_video(V):
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"""
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Convert a 5D tensor into 4D tensor.
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Convesrion is done from [batchsize, time(frame), channel(color), height, width] (5D tensor)
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to [time(frame), new_width, new_height, channel] (4D tensor).
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A batch of images are spread to a grid, which forms a frame.
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e.g. Video with batchsize 16 will have a 4x4 grid.
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"""
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b, t, c, h, w = V.shape
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if V.dtype == np.uint8:
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V = np.float32(V) / 255.0
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def is_power2(num):
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return num != 0 and ((num & (num - 1)) == 0)
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# pad to nearest power of 2, all at once
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# pyrefly: ignore # index-error
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if not is_power2(V.shape[0]):
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# pyrefly: ignore # index-error
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len_addition = int(2 ** V.shape[0].bit_length() - V.shape[0])
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V = np.concatenate((V, np.zeros(shape=(len_addition, t, c, h, w))), axis=0)
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n_rows = 2 ** ((b.bit_length() - 1) // 2)
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# pyrefly: ignore # index-error
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n_cols = V.shape[0] // n_rows
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V = np.reshape(V, newshape=(n_rows, n_cols, t, c, h, w))
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V = np.transpose(V, axes=(2, 0, 4, 1, 5, 3))
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V = np.reshape(V, newshape=(t, n_rows * h, n_cols * w, c))
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return V
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def make_grid(I, ncols=8):
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# I: N1HW or N3HW
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assert isinstance(I, np.ndarray), "plugin error, should pass numpy array here"
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if I.shape[1] == 1:
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I = np.concatenate([I, I, I], 1)
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assert I.ndim == 4 and I.shape[1] == 3
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nimg = I.shape[0]
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H = I.shape[2]
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W = I.shape[3]
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ncols = min(nimg, ncols)
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nrows = int(np.ceil(float(nimg) / ncols))
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canvas = np.zeros((3, H * nrows, W * ncols), dtype=I.dtype)
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i = 0
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for y in range(nrows):
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for x in range(ncols):
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if i >= nimg:
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break
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canvas[:, y * H : (y + 1) * H, x * W : (x + 1) * W] = I[i]
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i = i + 1
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return canvas
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# if modality == 'IMG':
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# if x.dtype == np.uint8:
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# x = x.astype(np.float32) / 255.0
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def convert_to_HWC(tensor, input_format): # tensor: numpy array
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assert len(set(input_format)) == len(
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input_format
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), f"You can not use the same dimension shordhand twice. input_format: {input_format}"
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assert len(tensor.shape) == len(
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input_format
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), f"size of input tensor and input format are different. \
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tensor shape: {tensor.shape}, input_format: {input_format}"
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input_format = input_format.upper()
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if len(input_format) == 4:
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index = [input_format.find(c) for c in "NCHW"]
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tensor_NCHW = tensor.transpose(index)
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tensor_CHW = make_grid(tensor_NCHW)
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return tensor_CHW.transpose(1, 2, 0)
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if len(input_format) == 3:
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index = [input_format.find(c) for c in "HWC"]
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tensor_HWC = tensor.transpose(index)
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if tensor_HWC.shape[2] == 1:
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tensor_HWC = np.concatenate([tensor_HWC, tensor_HWC, tensor_HWC], 2)
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return tensor_HWC
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if len(input_format) == 2:
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index = [input_format.find(c) for c in "HW"]
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tensor = tensor.transpose(index)
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tensor = np.stack([tensor, tensor, tensor], 2)
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return tensor
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