img can be image path or cv2 loaded image.

Read image worker. Args: path (str): Image path. key (str): Image key. compress_level (int): Compress level when enc

Reduce loss as specified. Args: loss (Tensor): Elementwise loss tensor. reduction (str): Options are 'none', 'mean' and 'sum'

Reload the optimizers and schedulers for resumed training. Args: resume_state (dict): Resume state.

Convert a RGB image to YCbCr image. This function produces the same results as Matlab's `rgb2ycbcr` function. It implements the ITU-R BT.6

Set random seeds.

swap the features from the dictionary.

Function: ---------- apply the inverse of affine transform 'trans' to uv Parameters: ---------- @trans: 3x3 n

Update learning rate. Args: current_iter (int): Current iteration. warmup_iter (int)： Warm-up iter numbers. -1 fo

Function: ---------- apply affine transform 'trans' to uv Parameters: ---------- @src_img: 3x3 np.array

Apply element-wise weight and reduce loss. Args: loss (Tensor): Element-wise loss. weight (Tensor): Element-wise weights. Def

Args: windows: (num_windows*b, window_size, window_size, c) window_size (int): Window size h (int): Height of image

Format logging message. Args: log_vars (dict): It contains the following keys: epoch (int): Epoch number.

Return self as a plain tuple. Used by copy and pickle.

config_name: name of .yaml config with network configuration from models/ folder. min_face : minimal face size in pixels.