File size: 2,208 Bytes
fa173f9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | import h5py
import scipy.io as io
import numpy as np
import os
import glob
from matplotlib import pyplot as plt
from multiprocessing import Pool
from functools import partial
def process(idx, img_paths):
img_path = img_paths[idx]
mat = io.loadmat(img_path.replace('.jpg','.mat').replace('images','ground_truth').replace('img','GT_img'))
img = plt.imread(img_path)
base_range = 5
off1 = np.zeros((int(img.shape[0]/2),int(img.shape[1]/2),2))
off2 = np.zeros((int(img.shape[0]/4),int(img.shape[1]/4),2))
off3 = np.zeros((int(img.shape[0]/8),int(img.shape[1]/8),2))
ids = np.zeros((int(img.shape[0]/2),int(img.shape[1]/2)), np.int16)
gt = mat["image_info"][0,0][0,0][0]
for i in range(len(gt)):
for j in range(3):
h, w = int(img.shape[0]/2**(j+1)), int(img.shape[1]/2**(j+1))
y, x = int(gt[i][1]/2**(j+1)), int(gt[i][0]/2**(j+1))
if x < w and y < h:
if j == 0:
ids[y,x] = gt[i][2]
trk_range = int(base_range/(j+1.))
left = max(0, x - trk_range)
right = min(w-1, x + trk_range)
top = max(0, y - trk_range)
down = min(h-1, y + trk_range)
for n in range(left,right+1,1):
for m in range(top,down+1,1):
if j == 0:
off1[m,n,0], off1[m,n,1] = y-m, x-n
elif j == 1:
off2[m,n,0], off2[m,n,1] = y-m, x-n
elif j == 2:
off3[m,n,0], off3[m,n,1] = y-m, x-n
with h5py.File(img_path.replace('.jpg','_max.h5').replace('images','ground_truth'), 'w') as hf:
hf['identity'] = ids
hf['offset1'] = off1
hf['offset2'] = off2
hf['offset3'] = off3
print(idx, len(img_paths))
part_train = os.path.join('train_data','images')
part_test = os.path.join('val_data','images')
img_paths = []
for img_path in glob.glob(os.path.join(part_train, '*.jpg')):
img_paths.append(img_path)
for img_path in glob.glob(os.path.join(part_test, '*.jpg')):
img_paths.append(img_path)
img_paths.sort()
pool = Pool(10)
partial = partial(process, img_paths=img_paths)
_ = pool.map(partial, range(len(img_paths))) |