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test.py
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#This code is an adapted version of the original available here: https://github.com/MichiganCOG/TASED-Net
import os
import numpy as np
import cv2
import torch
import pandas as pd
from scipy.ndimage.filters import gaussian_filter
from tqdm import tqdm
from PIL import Image
from models.HD2S import HD2S as modelName
dev = 'cuda:0'
image_size=(128, 192)
def main():
target_dataset=os.path.join('DHF1K','validation')
fromVideo=False
len_temporal = 16
test_name='HD2S_testDHF1K_demo'
weight_folder='HD2S_train_demo'
subfolder = 'BaseModel'
weight_name='weight_MinLoss.pt'
file_weights = os.path.join('output', 'model_weights', subfolder, weight_folder, weight_name)
data_folder=os.path.join('data', target_dataset)
video_folder=os.path.join('video')
frames_folder='frames'
path_output = os.path.join('output', subfolder, test_name)
path_video=os.path.join(data_folder, video_folder)
path_frames=os.path.join(data_folder, frames_folder)
model=modelName()
model.load_state_dict(torch.load(file_weights, map_location = dev))
model=model.to(dev)
torch.backends.cudnn.benchmark = True
model.eval()
if not os.path.isdir(os.path.join('output',subfolder,test_name)):
os.makedirs(os.path.join('output',subfolder, test_name))
if fromVideo:
if target_dataset=='LEDOV' or target_dataset=='UAV123':
list_video= pd.read_csv(os.path.join('data',target_dataset,'test.csv'))['0'].values.tolist()
list_video.sort()
else:
list_video = [v for v in os.listdir(path_video) if os.path.isfile(os.path.join(path_video, v))]
else:
list_video = [v for v in os.listdir(path_frames) if os.path.isdir(os.path.join(path_frames, v))]
for v in list_video:
destination_path=os.path.join(path_output,os.path.splitext(v)[0])
print(destination_path)
if not os.path.isdir(destination_path):
os.mkdir(destination_path)
if fromVideo:
list_frames = resized_frames_from_video(v, path_video)
else:
list_frame_names = [f for f in os.listdir(os.path.join(path_frames,v)) if os.path.isfile(os.path.join(path_frames, v,f))]
list_frames=[]
for f in list_frame_names:
img = cv2.imread(os.path.join(path_frames,v, f))
img= cv2.resize(img, dsize=(image_size[1], image_size[0]),interpolation=cv2.INTER_CUBIC)
img = cv2.cvtColor(img,cv2.COLOR_BGR2RGB)
list_frames.append(img)
original_length= len(list_frames)
# if number of video frames are less of 2*lentemporal, we append the frames to the list in reverse order
if original_length<2*len_temporal-1:
num_missed_frames = 2*len_temporal -1 - original_length
for k in range(num_missed_frames):
list_frames.append(np.copy(list_frames[original_length-k-1]))
# process in a sliding window fashion
if len(list_frames) >= 2*len_temporal-1:
frames_mask=[None]*original_length
overlap=[None]*original_length
snippet = []
for i in tqdm(range(len(list_frames)), desc=f"number of frames: {len(list_frames)}"):
img = list_frames[i]
snippet.append(img)
if i<original_length:
overlap[i]=Image.fromarray(np.uint8(list_frames[i]), "RGB")
if (i>= len_temporal -1):
if i < original_length:#only for the original frames
clip = transform(snippet)
frames_mask[i]=process(model, clip, i, destination_path)
img = cv2.applyColorMap(frames_mask[i],cv2.COLORMAP_HOT)
img = cv2.cvtColor(img,cv2.COLOR_BGR2RGB)
overlap[i].paste(Image.fromarray(img), mask=Image.fromarray(frames_mask[i]))
if (i<2*len_temporal-2):
j=i-len_temporal+1
frames_mask[j] = process(model, torch.flip(clip, [1]), j, destination_path)
img = cv2.applyColorMap(frames_mask[j],cv2.COLORMAP_HOT)
img = cv2.cvtColor(img,cv2.COLOR_BGR2RGB)
overlap[j].paste(Image.fromarray(img), mask=Image.fromarray(frames_mask[j]))
del snippet[0]
if not os.path.isdir(os.path.join(destination_path,'images')):
os.mkdir(os.path.join(destination_path,'images'))
for idx in range(len(overlap)):
overlap[idx].save(os.path.join(destination_path, 'images', '%04d.jpg'%(idx+1)), format='JPEG', quality=100)
else: print("more frames are needed")
def resized_frames_from_video(v, path_video):
print(os.path.join(path_video,v))
vidcap = cv2.VideoCapture(os.path.join(path_video,v))
success,image = vidcap.read()
frames=[]
success = True
while success:
image = cv2.resize(image, dsize=(image_size[1], image_size[0]),interpolation=cv2.INTER_CUBIC)
image = cv2.cvtColor(image,cv2.COLOR_BGR2RGB)
frames.append(image)
success,image = vidcap.read()
return frames
def transform(snippet):
snippet = np.concatenate(snippet, axis=-1)
snippet = torch.from_numpy(snippet).permute(2, 0, 1).contiguous().float()
snippet = snippet.mul_(2.).sub_(255).div(255)
snippet = snippet.view(1,-1,3,snippet.size(1),snippet.size(2)).permute(0,2,1,3,4)
return snippet
def process(model, clip, idx, path_output):
frames_path = os.path.join(path_output,'frames')
if not os.path.isdir(frames_path):
os.mkdir(frames_path)
with torch.no_grad():
smap = model(clip.to(dev))
smap=smap.cpu().data[0]
smap = (smap.numpy()*255.).astype(int)/255.
smap = gaussian_filter(smap, sigma=7)
smap = (smap/np.max(smap)*255.).astype(np.uint8)
cv2.imwrite(os.path.join(frames_path, '%04d.png'%(idx+1)), smap)
return smap
if __name__ == '__main__':
main()