AttributeError：模块“torch”没有 PyTorch 的属性“rfft”

Question

我使用应该根据文档工作的代码时遇到错误。目标是使用piqPython 库计算特征相似性指数度量 (FSIM)。

终端输出：

TiffPage 1: ByteCounts tag is missing
Traceback (most recent call last):
  File "...\.venv\lib\site-packages\IPython\core\interactiveshell.py", line 3441, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-2-3044cfc208ce>", line 1, in <module>
    runfile('.../stackoverflow.py', wdir='...')
  File "...\plugins\python\helpers\pydev\_pydev_bundle\pydev_umd.py", line 197, in runfile
    pydev_imports.execfile(filename, global_vars, local_vars)  # execute the script
  File "...\plugins\python\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
  File ".../stackoverflow.py", line 15, in <module>
    main()
  File "...\.venv\lib\site-packages\torch\autograd\grad_mode.py", line 27, in decorate_context
    return func(*args, **kwargs)
  File ".../stackoverflow.py", line 10, in main
    fsim_index: torch.Tensor = piq.fsim(x, y, data_range=1., reduction='none')
  File "...\.venv\lib\site-packages\piq\fsim.py", line 84, in fsim
    pc_x = _phase_congruency(
  File "...\.venv\lib\site-packages\piq\fsim.py", line 241, in _phase_congruency
    imagefft = torch.rfft(x, 2, onesided=False)
AttributeError: module 'torch' has no attribute 'rfft'

代码：

from skimage import io
import torch
import piq

@torch.no_grad()
def main():
    x = torch.tensor(io.imread('scikit_image\cover\cover_1.tiff')).permute(2, 0, 1)[None, ...] / 255.
    y = torch.tensor(io.imread('scikit_image\stego\stego_1.tiff')).permute(2, 0, 1)[None, ...] / 255.

    fsim_index: torch.Tensor = piq.fsim(x, y, data_range=1., reduction='none')

    print(fsim_index)

if __name__ == "__main__":
    main()

Answer 1

最新版本的pytorch在torch.fft模块中实现了所有快速傅里叶函数，显然piq依赖于旧版本的pytorch，因此如果你想运行piq请考虑降级你的pytorch版本，例如：

pip3 install torch==1.7.1 torchvision==0.8.2