import numpy as np
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import torch
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import cv2
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from torch.utils.data.dataset import Dataset
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import os
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from PIL import Image
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import utils
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def stack_grayscale_tensor(tensor):
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tensor = torch.cat([tensor, tensor, tensor], 0)
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return tensor
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class Pose_300W_LP(Dataset):
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def __init__(self, data_dir, filename_path, transform, img_ext='.jpg', annot_ext='.mat', image_mode='RGB'):
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self.data_dir = data_dir
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self.transform = transform
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self.img_ext = img_ext
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self.annot_ext = annot_ext
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filename_list = get_list_from_filenames(filename_path)
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self.X_train = filename_list
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self.y_train = filename_list
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self.image_mode = image_mode
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self.length = len(filename_list)
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def __getitem__(self, index):
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img = Image.open(os.path.join(self.data_dir, self.X_train[index] + self.img_ext))
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img = img.convert(self.image_mode)
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mat_path = os.path.join(self.data_dir, self.y_train[index] + self.annot_ext)
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shape_path = os.path.join(self.data_dir, self.y_train[index] + '_shape.npy')
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# Crop the face
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pt2d = utils.get_pt2d_from_mat(mat_path)
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x_min = min(pt2d[0,:])
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y_min = min(pt2d[1,:])
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x_max = max(pt2d[0,:])
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y_max = max(pt2d[1,:])
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k = 0.35
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x_min -= 0.6 * k * abs(x_max - x_min)
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y_min -= 2 * k * abs(y_max - y_min)
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x_max += 0.6 * k * abs(x_max - x_min)
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y_max += 0.6 * k * abs(y_max - y_min)
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img = img.crop((int(x_min), int(y_min), int(x_max), int(y_max)))
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# We get the pose in radians
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pose = utils.get_ypr_from_mat(mat_path)
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# And convert to degrees.
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pitch = pose[0] * 180 / np.pi
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yaw = pose[1] * 180 / np.pi
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roll = pose[2] * 180 / np.pi
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# Flip?
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rnd = np.random.random_sample()
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if rnd < 0.5:
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yaw = -yaw
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roll = -roll
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img = img.transpose(Image.FLIP_LEFT_RIGHT)
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# Rotate?
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# rnd = np.random.random_sample()
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# if rnd < 0.5:
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# if roll >= 0:
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# img = img.rotate(30)
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# roll -= 30
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# else:
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# img = img.rotate(-30)
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# roll += 30
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# Bin values
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bins = np.array(range(-99, 102, 3))
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binned_pose = np.digitize([yaw, pitch, roll], bins) - 1
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# Get shape
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shape = np.load(shape_path)
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labels = torch.LongTensor(np.concatenate((binned_pose, shape), axis = 0))
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if self.transform is not None:
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img = self.transform(img)
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return img, labels, self.X_train[index]
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def __len__(self):
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# 122,450
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return self.length
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class AFLW2000(Dataset):
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def __init__(self, data_dir, filename_path, transform, img_ext='.jpg', annot_ext='.mat', image_mode='RGB'):
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self.data_dir = data_dir
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self.transform = transform
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self.img_ext = img_ext
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self.annot_ext = annot_ext
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filename_list = get_list_from_filenames(filename_path)
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self.X_train = filename_list
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self.y_train = filename_list
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self.image_mode = image_mode
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self.length = len(filename_list)
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def __getitem__(self, index):
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img = Image.open(os.path.join(self.data_dir, self.X_train[index] + self.img_ext))
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img = img.convert(self.image_mode)
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mat_path = os.path.join(self.data_dir, self.y_train[index] + self.annot_ext)
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# Crop the face
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pt2d = utils.get_pt2d_from_mat(mat_path)
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x_min = min(pt2d[0,:])
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y_min = min(pt2d[1,:])
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x_max = max(pt2d[0,:])
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y_max = max(pt2d[1,:])
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# k = 0.35
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# x_min -= 0.6 * k * abs(x_max - x_min)
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# y_min -= 2 * k * abs(y_max - y_min)
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# x_max += 0.6 * k * abs(x_max - x_min)
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# y_max += 0.6 * k * abs(y_max - y_min)
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# img = img.crop((int(x_min), int(y_min), int(x_max), int(y_max)))
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k = 0.15
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x_min -= k * abs(x_max - x_min)
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y_min -= 4 * k * abs(y_max - y_min)
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x_max += k * abs(x_max - x_min)
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y_max += 0.4 * k * abs(y_max - y_min)
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img = img.crop((int(x_min), int(y_min), int(x_max), int(y_max)))
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# We get the pose in radians
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pose = utils.get_ypr_from_mat(mat_path)
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# And convert to degrees.
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pitch = pose[0] * 180 / np.pi
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yaw = pose[1] * 180 / np.pi
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roll = pose[2] * 180 / np.pi
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# Bin values
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bins = np.array(range(-99, 102, 3))
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labels = torch.LongTensor(np.digitize([yaw, pitch, roll], bins) - 1)
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if self.transform is not None:
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img = self.transform(img)
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return img, labels, self.X_train[index]
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def __len__(self):
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# 2,000
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return self.length
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class AFLW(Dataset):
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def __init__(self, data_dir, filename_path, transform, img_ext='.jpg', annot_ext='.txt', image_mode='RGB'):
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self.data_dir = data_dir
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self.transform = transform
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self.img_ext = img_ext
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self.annot_ext = annot_ext
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filename_list = get_list_from_filenames(filename_path)
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self.X_train = filename_list
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self.y_train = filename_list
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self.image_mode = image_mode
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self.length = len(filename_list)
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def __getitem__(self, index):
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img = Image.open(os.path.join(self.data_dir, self.X_train[index] + self.img_ext))
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img = img.convert(self.image_mode)
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txt_path = os.path.join(self.data_dir, self.y_train[index] + self.annot_ext)
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# We get the pose in radians
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annot = open(txt_path, 'r')
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line = annot.readline().split(' ')
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pose = [float(line[1]), float(line[2]), float(line[3])]
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# And convert to degrees.
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yaw = pose[0] * 180 / np.pi
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pitch = pose[1] * 180 / np.pi
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roll = pose[2] * 180 / np.pi
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# Something weird with the roll in AFLW
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# if yaw < 0:
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roll *= -1
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# Bin values
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bins = np.array(range(-99, 102, 3))
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labels = torch.LongTensor(np.digitize([yaw, pitch, roll], bins) - 1)
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if self.transform is not None:
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img = self.transform(img)
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return img, labels, self.X_train[index]
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def __len__(self):
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# train: 18,863
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# test: 1,966
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return self.length
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class AFW(Dataset):
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def __init__(self, data_dir, filename_path, transform, img_ext='.jpg', annot_ext='.txt', image_mode='RGB'):
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self.data_dir = data_dir
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self.transform = transform
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self.img_ext = img_ext
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self.annot_ext = annot_ext
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filename_list = get_list_from_filenames(filename_path)
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self.X_train = filename_list
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self.y_train = filename_list
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self.image_mode = image_mode
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self.length = len(filename_list)
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def __getitem__(self, index):
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txt_path = os.path.join(self.data_dir, self.y_train[index] + self.annot_ext)
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img_name = self.X_train[index].split('_')[0]
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img = Image.open(os.path.join(self.data_dir, img_name + self.img_ext))
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img = img.convert(self.image_mode)
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txt_path = os.path.join(self.data_dir, self.y_train[index] + self.annot_ext)
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# We get the pose in degrees
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annot = open(txt_path, 'r')
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line = annot.readline().split(' ')
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yaw, pitch, roll = [float(line[1]), float(line[2]), float(line[3])]
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# Crop the face
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margin = 40
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x_min = float(line[4]) - margin
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y_min = float(line[5]) - margin
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x_max = float(line[6]) + margin
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y_max = float(line[7]) + margin
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img = img.crop((int(x_min), int(y_min), int(x_max), int(y_max)))
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# Bin values
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bins = np.array(range(-99, 102, 3))
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labels = torch.LongTensor(np.digitize([yaw, pitch, roll], bins) - 1)
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if self.transform is not None:
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img = self.transform(img)
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return img, labels, self.X_train[index]
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def __len__(self):
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# Around 200
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return self.length
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class LP_300W_LP(Dataset):
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def __init__(self, data_dir, filename_path, transform, img_ext='.jpg', annot_ext='.mat', image_mode='RGB'):
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self.data_dir = data_dir
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self.transform = transform
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self.img_ext = img_ext
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self.annot_ext = annot_ext
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filename_list = get_list_from_filenames(filename_path)
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self.X_train = filename_list
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self.y_train = filename_list
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self.image_mode = image_mode
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self.length = len(filename_list)
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def __getitem__(self, index):
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img = Image.open(os.path.join(self.data_dir, self.X_train[index] + self.img_ext))
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img = img.convert(self.image_mode)
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mat_path = os.path.join(self.data_dir, self.y_train[index] + self.annot_ext)
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shape_path = os.path.join(self.data_dir, self.y_train[index] + '_shape.npy')
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# Crop the face
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# TODO: Change bounding box.
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pt2d = utils.get_pt2d_from_mat(mat_path)
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x_min = min(pt2d[0,:])
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y_min = min(pt2d[1,:])
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x_max = max(pt2d[0,:])
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y_max = max(pt2d[1,:])
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k = 0.35
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x_min -= 0.6 * k * abs(x_max - x_min)
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y_min -= 2 * k * abs(y_max - y_min)
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x_max += 0.6 * k * abs(x_max - x_min)
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y_max += 0.6 * k * abs(y_max - y_min)
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img = img.crop((int(x_min), int(y_min), int(x_max), int(y_max)))
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# We get the pose in radians
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pose = utils.get_ypr_from_mat(mat_path)
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# And convert to degrees.
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pitch = pose[0] * 180 / np.pi
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yaw = pose[1] * 180 / np.pi
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roll = pose[2] * 180 / np.pi
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# Bin values
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bins = np.array(range(-99, 102, 3))
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binned_pose = np.digitize([yaw, pitch, roll], bins) - 1
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# Get shape binned shape
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shape = np.load(shape_path)
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# Convert pt2d to maps of image size
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# that have
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labels = torch.LongTensor(np.concatenate((binned_pose, shape), axis = 0))
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if self.transform is not None:
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img = self.transform(img)
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return img, labels, self.X_train[index]
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def __len__(self):
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# 122,450
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return self.length
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class BIWI(Dataset):
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def __init__(self, data_dir, filename_path, transform, img_ext='.png', annot_ext='.txt', image_mode='RGB'):
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self.data_dir = data_dir
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self.transform = transform
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self.img_ext = img_ext
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self.annot_ext = annot_ext
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filename_list = get_list_from_filenames(filename_path)
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self.X_train = filename_list
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self.y_train = filename_list
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self.image_mode = image_mode
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self.length = len(filename_list)
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def __getitem__(self, index):
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img = Image.open(os.path.join(self.data_dir, self.X_train[index] + '_rgb' + self.img_ext))
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img = img.convert(self.image_mode)
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pose_path = os.path.join(self.data_dir, self.y_train[index] + '_pose' + self.annot_ext)
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y_train_list = self.y_train[index].split('/')
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bbox_path = os.path.join(self.data_dir, y_train_list[0] + '/dockerface-' + y_train_list[-1] + '_rgb' + self.annot_ext)
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# Load bounding box
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bbox = open(bbox_path, 'r')
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line = bbox.readline().split(' ')
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if len(line) < 4:
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x_min, y_min, x_max, y_max = 0, 0, img.size[0], img.size[1]
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else:
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x_min, y_min, x_max, y_max = [float(line[1]), float(line[2]), float(line[3]), float(line[4])]
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bbox.close()
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# Load pose in degrees
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pose_annot = open(pose_path, 'r')
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R = []
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for line in pose_annot:
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line = line.strip('\n').split(' ')
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l = []
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if line[0] != '':
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for nb in line:
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if nb == '':
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continue
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l.append(float(nb))
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R.append(l)
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R = np.array(R)
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T = R[3,:]
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R = R[:3,:]
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pose_annot.close()
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roll = np.arctan2(R[1][0], R[0][0]) * 180 / np.pi
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yaw = np.arctan2(-R[2][0], np.sqrt(R[2][1] ** 2 + R[2][2] ** 2)) * 180 / np.pi
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pitch = -np.arctan2(R[2][1], R[2][2]) * 180 / np.pi
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# Loosely crop face
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k = 0.35
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x_min -= 0.6 * k * abs(x_max - x_min)
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y_min -= k * abs(y_max - y_min)
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x_max += 0.6 * k * abs(x_max - x_min)
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y_max += 0.6 * k * abs(y_max - y_min)
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img = img.crop((int(x_min), int(y_min), int(x_max), int(y_max)))
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# Flip?
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# rnd = np.random.random_sample()
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# if rnd < 0.5:
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# yaw = -yaw
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# roll = -roll
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# img = img.transpose(Image.FLIP_LEFT_RIGHT)
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# Bin values
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bins = np.array(range(-99, 102, 3))
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binned_pose = np.digitize([yaw, pitch, roll], bins) - 1
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labels = torch.LongTensor(binned_pose)
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if self.transform is not None:
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img = self.transform(img)
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return img, labels, self.X_train[index]
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def __len__(self):
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# 15,667
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return self.length
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def get_list_from_filenames(file_path):
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# input: relative path to .txt file with file names
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# output: list of relative path names
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with open(file_path) as f:
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lines = f.read().splitlines()
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return lines
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