torch_dct不是一个PyTorch官方提供的模块。PyTorch的核心库是torch,而torch_dct可能是某个特定项目或第三方库中的自定义模块。 你需要确认你的项目中是否应该包含这个模块,或者这是否是某个教程或代码示例中的错误引用。 查找是否有替代的库或方法: 如果torch_dct模块不存在,你可能需要查找是否有其他库提供了类似的...
DCT (Discrete Cosine Transform) for pytorchThis library implements DCT in terms of the built-in FFT operations in pytorch so that back propagation works through it, on both CPU and GPU. For more information on DCT and the algorithms used here, see Wikipedia and the paper by J. Makhoul. Th...
DCT是正交变换的一种,将一个信号或图像从时域转换到频域。它可以将信号或图像分解为多个频率成分,这些频率成分的权重由变换系数表示。图像压缩中经常使用的DCT变换是二维的,将图像分解为一系列二维频率块。 首先,我们需要安装Torch库。您可以通过运行以下命令来安装它: ``` pip install torch ``` 安装完成后,我们...
pip install torch-dct Requirestorch>=0.4.1(lower versions are probably OK but I haven't tested them). You can run test by getting the source and runpytest. To run the test you also needscipyinstalled. Usage importtorchimporttorch_dctasdctx=torch.randn(200)X=dct.dct(x)# DCT-II done ...
python对一张torch图片做DCT频域转换速度快吗 离散傅里叶变换(DFT) 离散傅里叶变换 离散傅里叶变换(DFT) 原理 实现 效果展示 意义 参考资料 原理 对一张图像使用傅里叶变换就是将它分解成正弦和余弦两部分,也就是将图像从空间域(spatial domain)转换到频域(frequency domain)。这一转换的理论基础来自于以下事实:...
torchdct.zip 你挺**够呛上传9.44 KB文件格式zipdctdftfctfftpytorchtorch DCT(Discrete (0)踩踩(0) 所需:1积分 alinesno-infra-smart-brain 2025-03-18 10:55:03 积分:1 AnyLoRA 2025-03-18 10:54:24 积分:1 工具箱 2025-03-18 10:46:31...
import scipy def f3(x): x = x * 2 x = scipy.fft.dct(x.numpy()) x = torch.from_numpy(x) x = x * 2 return x TorchScript 跟踪将非 PyTorch 函数调用的结果视为常量,因此结果可能是无声的错误。 inp1 = torch.randn(5, 5) inp2 = torch.randn(5, 5) traced_f3 = torch.jit.tra...
def replace_nones(dct, replacement='Could not collect'): for key in dct.keys(): if dct[key] is not None: continue dct[key] = replacement return dct def replace_bools(dct, true='Yes', false='No'): for key in dct.keys(): if dct[key] is True: dct[key] ...
def create_dct( n_mfcc: int, n_mels: int, norm: Optional[str] ) -> Tensor: r"""Create a DCT transformation matrix with shape (``n_mels``, ``n_mfcc``), normalized depending on norm. Args: n_mfcc (int): Number of mfc coefficients to retain n_mels (int): Number of mel filt...
DCT (Discrete Cosine Transform) for pytorchThis library implements DCT in terms of the built-in FFT operations in pytorch so that back propagation works through it, on both CPU and GPU. For more information on DCT and the algorithms used here, see Wikipedia and the paper by J. Makhoul. Th...