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evaluate_segmentation.py
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evaluate_segmentation.py
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from platform import java_ver
from builtins import print
import colorsys
import os
import sys
import numpy as np
import torch
import torch.nn.functional as F
import torchvision
import torchvision.transforms as transforms
from PIL import Image
from matplotlib import pyplot as plt
import matplotlib.gridspec as gridspec
from matplotlib.patches import Polygon
from skimage.measure import find_contours
from torch.nn.functional import interpolate
import domainbed.lib.clip.clip as clip
from domainbed.lib.clip.clip import tokenize
from tqdm import tqdm
import cv2 as cv
import torch.nn as nn
import einops
from domainbed.lib.utils import get_voc_dataset, get_model, parse_args
# from domainbed.visiontransformer import VisionTransformer
import domainbed.algorithms as algorithms
from domainbed.lib import misc
def jaccard_index(true, logits, eps=1e-7):
"""Computes the Jaccard loss, a.k.a the IoU loss.
Note that PyTorch optimizers minimize a loss. In this
case, we would like to maximize the jaccard loss so we
return the negated jaccard loss.
Args:
true: a tensor of shape [B, H, W] or [B, 1, H, W].
logits: a tensor of shape [B, C, H, W]. Corresponds to
the raw output or logits of the model.
eps: added to the denominator for numerical stability.
Returns:
jacc_loss: the Jaccard loss.
"""
num_classes = logits.shape[1]
if num_classes == 1:
true_1_hot = torch.eye(num_classes + 1)[true.squeeze(1)]
true_1_hot = true_1_hot.permute(0, 3, 1, 2).float()
true_1_hot_f = true_1_hot[:, 0:1, :, :]
true_1_hot_s = true_1_hot[:, 1:2, :, :]
true_1_hot = torch.cat([true_1_hot_s, true_1_hot_f], dim=1)
pos_prob = torch.sigmoid(logits)
neg_prob = 1 - pos_prob
probas = torch.cat([pos_prob, neg_prob], dim=1)
else:
true_1_hot = torch.eye(num_classes)[true.squeeze(1)]
true_1_hot = true_1_hot.permute(0, 3, 1, 2).float()
probas = F.softmax(logits, dim=1)
true_1_hot = true_1_hot.type(logits.type())
dims = (0,) + tuple(range(2, true.ndimension()))
intersection = torch.sum(probas * true_1_hot, dims)
cardinality = torch.sum(probas + true_1_hot, dims)
union = cardinality - intersection
jacc_loss = (intersection / (union + eps)).mean()
return (jacc_loss)
def get_jaccard_loss_from_attention(pred_attn,target_attn,threshold=0.75,N_patch=14):
'''
pred_attn: predicted attentions [B, H, N,N] Eg: B,6,197,197
target_attn: target attentions [B, H, N,N]
'''
pred_attn=pred_attn[:,:,0,1:] #cls token attention
target_attn = target_attn[:, :, 0, 1:] #cls token attention
pred_attn = torch.mean(pred_attn,dim=1).reshape(-1,1,N_patch, N_patch).float() # mean over heads
target_attn=torch.mean(target_attn,dim=1)
val, idx = torch.sort(target_attn)
B=target_attn.shape[0]
val /= torch.sum(val, dim=1, keepdim=True)
cum_val = torch.cumsum(val, dim=1)
th_attn = cum_val > (1 - threshold)
idx2 = torch.argsort(idx)
for sample in range(B):
th_attn[sample] = th_attn[sample][idx2[sample]]
th_attn = th_attn.reshape(B,N_patch,N_patch).long()
return jaccard_index(th_attn,pred_attn)
def get_attention_masks(args, image, model,return_attn=False):
# make the image divisible by the patch size
w, h = image.shape[2] - image.shape[2] % args.patch_size, image.shape[3] - image.shape[3] % args.patch_size
image = image[:, :w, :h]
w_featmap = image.shape[-2] // args.patch_size
h_featmap = image.shape[-1] // args.patch_size
# attentions=model.get_last_selfattention(image.cuda())
image_features,attentions = model.visual(image.cuda(),return_attention=True)
# text_inputs = torch.cat([tokenize(f"a photo of a {c}") for c in misc.Class_names]).to("cuda")
# text_features = model.encode_text(text_inputs)
# image_features = image_features @ model.visual.proj
# image_features = image_features / image_features.norm(dim=1, keepdim=True)
# text_features = text_features / text_features.norm(dim=1, keepdim=True)
# # cosine similarity as logits
# logit_scale = model.logit_scale.exp()
# logits_per_image = logit_scale * image_features @ text_features.t()
# prob=F.softmax(logits_per_image).cpu().detach().numpy()
# np.savetxt(sys.stdout, prob)
# breakpoint()
# print(text_features.shape)
attentions=attentions[-1].unsqueeze(0)
nh = attentions.shape[1]
# we keep only the output patch attention
if args.is_dist:
if args.use_shape:
attentions = attentions[0, 1, 2:].reshape(nh, -1) # use distillation token attention
else:
attentions = attentions[0, 0, 2:].reshape(nh, -1) # use class token attention
else:
attentions = attentions[0, :, 0, 1:].reshape(nh, -1)
if(return_attn):
attentions = attentions.reshape(nh, w_featmap, h_featmap).detach().cpu()
attentions = nn.functional.interpolate(attentions.unsqueeze(0), scale_factor=args.patch_size, mode="nearest")[0].cpu().numpy()
return attentions
# we keep only a certain percentage of the mass
val, idx = torch.sort(attentions)
val /= torch.sum(val, dim=1, keepdim=True)
cum_val = torch.cumsum(val, dim=1)
th_attn = cum_val > (1 - args.threshold)
idx2 = torch.argsort(idx)
for head in range(nh):
th_attn[head] = th_attn[head][idx2[head]]
th_attn = th_attn.reshape(nh, w_featmap, h_featmap).float()
# interpolate
th_attn = interpolate(th_attn.unsqueeze(0), scale_factor=args.patch_size, mode="nearest")[0]
return th_attn
def get_all_attention_masks(args, image, model):
# make the image divisible by the patch size
w, h = image.shape[2] - image.shape[2] % args.patch_size, image.shape[3] - image.shape[3] % args.patch_size
image = image[:, :w, :h]
w_featmap = image.shape[-2] // args.patch_size
h_featmap = image.shape[-1] // args.patch_size
th_attn_all=[]
# attentions=model.get_last_selfattention(image.cuda())
attentions_all = model.forward_selfattention(image.cuda(),return_all_attention=True) # change here
for attentions in attentions_all:
nh = attentions.shape[1]
# we keep only the output patch attention
# print("attentions.shape:",attentions.shape)
if args.is_dist:
if args.use_shape:
attentions = attentions[0, :, 1, 2:].reshape(nh, -1) # use distillation token attention
else:
attentions = attentions[0, :, 0, 2:].reshape(nh, -1) # use class token attention
else:
attentions = attentions[0, :, 0, 1:].reshape(nh, -1)
# we keep only a certain percentage of the mass
val, idx = torch.sort(attentions)
val /= torch.sum(val, dim=1, keepdim=True)
cum_val = torch.cumsum(val, dim=1)
th_attn = cum_val > (1 - args.threshold)
idx2 = torch.argsort(idx)
for head in range(nh):
th_attn[head] = th_attn[head][idx2[head]]
th_attn = th_attn.reshape(nh, w_featmap, h_featmap).float()
# interpolate
th_attn = interpolate(th_attn.unsqueeze(0), scale_factor=args.patch_size, mode="nearest")[0]
th_attn_all.append(th_attn)
return th_attn_all
def get_per_sample_jaccard(pred,target):
jac = 0
object_count = 0
# print("hello")
for mask_idx in torch.unique(target):
# print("hell")
if mask_idx in [0, 255]: # ignore index
continue
cur_mask = target == mask_idx
intersection = (cur_mask * pred) * (cur_mask != 255) # handle void labels
# print(intersection.shape)
intersection = torch.sum(intersection, dim=[1, 2]) # handle void labels
union = ((cur_mask + pred) > 0) * (cur_mask != 255)
union = torch.sum(union, dim=[1, 2])
jac_all = intersection / union
# print(jac_all.shape)
jac += jac_all.max().item() #jac_all[2] 3rd head is good for Cartoons
object_count += 1
return jac / object_count
def run_eval(args, data_loader, model, device):
model.to(device)
model.eval()
total_jac = 0
image_count = 0
for idx, (sample, target) in tqdm(enumerate(data_loader), total=len(data_loader)):
sample, target = sample.to(device), target.to(device)
attention_mask = get_attention_masks(args, sample, model)
jac_val = get_per_sample_jaccard(attention_mask, target)
total_jac += jac_val
image_count += 1
return total_jac / image_count
def run_eval_self(args, model, device):
model.to(device)
model.eval()
transform = transforms.Compose([transforms.Resize((224,224)),transforms.ToTensor(),transforms.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225])])
samples = []
for fol_name in tqdm(os.listdir(args.test_dir)):
cnt=0
for im_name in tqdm(os.listdir(args.test_dir+"/"+fol_name)):
# if(cnt>20):
# break
# cnt+=1
im_path = f"{args.test_dir}/{fol_name}/{im_name}"
img = Image.open(f"{im_path}").resize((224, 224))
# img = torchvision.transforms.functional.to_tensor(img)
img=transform(img)
if img.shape[0] == 1:
img = torch.cat([img, img, img], dim=0)
samples.append(img)
samples = torch.stack(samples, 0).to(device)
total_jac = [0]*11
image_count = 0
jac_values=[]
for sample in samples:
all_attention_mask = get_all_attention_masks(args, sample.unsqueeze(0), model)
# all_attention_mask = model.forward_selfattention(sample.unsqueeze(0).cuda(),return_all_attention=True)
# print(len(all_attention_mask))
for att_i in range(len(all_attention_mask)-1):
# print(all_attention_mask[att_i].unsqueeze(0).shape)
jac_val = get_per_sample_jaccard(all_attention_mask[att_i], all_attention_mask[-1])
# jac_val=get_jaccard_loss_from_attention(all_attention_mask[att_i].detach().cpu(),all_attention_mask[-1].detach().cpu(),threshold=0.75,N_patch=14).item()
# print(jac_val)
jac_values.append(jac_val)
# print(total_jac)
# print(att_i)
total_jac[att_i]=total_jac[att_i]+jac_val
image_count+=1
return [total_jac_i / image_count for total_jac_i in total_jac]
# attention_masks.append(get_attention_masks(args, sample.unsqueeze(0), model))
for idx, (sample, target) in tqdm(enumerate(data_loader), total=len(data_loader)):
sample, target = sample.to(device), target.to(device)
attention_mask = get_attention_masks(args, sample, model)
jac_val = get_per_sample_jaccard(attention_mask, target)
total_jac += jac_val
image_count += 1
return total_jac / image_count
def apply_mask_last(image, mask, color=(0.0, 0.0, 1.0), alpha=0.5):
for c in range(3):
image[:, :, c] = image[:, :, c] * (1 - alpha * mask) + alpha * mask * color[c] * 255
return image
def display_instances_heatmap(image, attention, fname="test", figsize=(5, 5), blur=False, contour=True, alpha=0.5,batch=False,f_name_ori="test2"):
# image = image.permute(1, 2, 0).cpu().numpy()
attention=attention/np.amax(attention,keepdims=True)
attention=np.array(attention).reshape(224,224,1)
gamma=0.7
hetmp=(255.0*(np.power(attention, gamma))).astype(np.uint8)
# hetmp=(255.0*np.array(attention).reshape(224,224,1)).astype(np.uint8)
hetmp = cv.blur(hetmp,(10,10))
attn=cv.applyColorMap(hetmp,cv.COLORMAP_JET)
image=torchvision.transforms.ToPILImage()(image)
# image=einops.rearrange(image,'c h w -> h w c')
# print(np.array(attn).shape)
# print(np.array(image).shape)
# print(attn.dtype)
# print(image.dtype)
# print(f_name_ori)
# try:
resu=cv.addWeighted(np.array(image),0.7,np.array(attn),0.6,0.4)
img_orig=cv.addWeighted(np.array(image),1.0,np.array(attn),0.0,0.0)
cv.imwrite(fname,resu)
cv.imwrite(f_name_ori,img_orig)
# except Exception as e:
# print("An exception occurred:",e)
def display_instances(image, mask, fname="test", figsize=(5, 5), blur=False, contour=True, alpha=0.5,batch=False):
image = image.permute(1, 2, 0).cpu().numpy().astype(np.uint8)
mask = mask.cpu().numpy()
plt.ioff()
fig = plt.figure(figsize=figsize, frameon=False)
ax = plt.Axes(fig, [0., 0., 1., 1.])
ax.set_axis_off()
fig.add_axes(ax)
ax = plt.gca()
N = 1
mask = mask[None, :, :]
# Generate random colors
def random_colors(N, bright=True):
"""
Generate random colors.
"""
brightness = 1.0 if bright else 0.7
hsv = [(i / N, 1, brightness) for i in range(N)]
colors = list(map(lambda c: colorsys.hsv_to_rgb(*c), hsv))
return colors
colors = random_colors(N)
# Show area outside image boundaries.
height, width = image.shape[:2]
margin = 0
ax.set_ylim(height + margin, -margin)
ax.set_xlim(-margin, width + margin)
ax.axis('off')
masked_image = (image * 255).astype(np.uint32).copy()
for i in range(N):
color = colors[i]
_mask = mask[i]
if blur:
pass
# _mask = cv2.blur(_mask, (10, 10))
# Mask
masked_image = apply_mask_last(masked_image, _mask, color, alpha)
# Mask Polygon
# Pad to ensure proper polygons for masks that touch image edges.
if contour:
padded_mask = np.zeros((_mask.shape[0] + 2, _mask.shape[1] + 2))
padded_mask[1:-1, 1:-1] = _mask
contours = find_contours(padded_mask, 0.5)
for verts in contours:
# Subtract the padding and flip (y, x) to (x, y)
verts = np.fliplr(verts) - 1
p = Polygon(verts, facecolor="none", edgecolor=color)
ax.add_patch(p)
if(batch):
plt.close(fig)
return masked_image
else:
ax.imshow(masked_image.astype(np.uint8), aspect='auto')
fig.savefig(fname)
plt.close(fig)
def generate_images_per_model(args, model, device,domain=""):
model.to(device)
model.eval()
print(args.test_dir)
environments = [f.name for f in os.scandir(opt.test_dir) if f.is_dir()]
environments = sorted(environments)
print('env', environments)
for d in environments:
if (domain!=d):
continue
samples = []
original_img=[]
for fol_name in tqdm(os.listdir(args.test_dir+"/"+d)):
cnt=0
for im_name in tqdm(os.listdir(args.test_dir+"/"+d+"/"+fol_name)):
if(cnt>12):
break
cnt+=1
im_path = f"{args.test_dir}/{d}/{fol_name}/{im_name}"
image = Image.open(f"{im_path}")
# print("size:",image.size)
image=image.resize((224, 224))
img = torchvision.transforms.functional.to_tensor(image)
# print("size:",img.shape)
if img.shape[0] == 1:
img = torch.cat([img, img, img], dim=0)
samples.append(img)
original_img.append(img)
samples = torch.stack(samples, 0).to(device)
attention_masks = []
for sample in samples:
attention_masks.append(get_attention_masks(args, sample.unsqueeze(0), model,return_attn=True))
os.makedirs(f"{args.save_path}", exist_ok=True)
os.makedirs(f"{args.save_path}/{d}/{args.model_name}_{args.threshold}", exist_ok=True)
for idx, (sample, mask) in enumerate(zip(original_img, attention_masks)):
for head_idx, mask_h in enumerate(mask):
# print(mask_h.shape)
f_name = f"{args.save_path}/{d}/{args.model_name}_{args.threshold}/im_{idx:03d}_{head_idx}.png"
f_name_ori = f"{args.save_path}/{d}/{args.model_name}_{args.threshold}/im_{idx:03d}_ori.png"
display_instances_heatmap(sample, mask_h, fname=f_name,f_name_ori=f_name_ori)
def generate_images_per_model_per_block(args, model, device):
model.to(device)
model.eval()
samples = []
for fol_name in tqdm(os.listdir(args.test_dir)):
cnt=0
for im_name in tqdm(os.listdir(args.test_dir+"/"+fol_name)):
if(cnt>15):
break
cnt+=1
im_path = f"{args.test_dir}/{fol_name}/{im_name}"
img = Image.open(f"{im_path}").resize((224, 224))
img = torchvision.transforms.functional.to_tensor(img)
if img.shape[0] == 1:
img = torch.cat([img, img, img], dim=0)
samples.append(img)
samples = torch.stack(samples, 0).to(device)
attention_masks = []
for sample in samples:
attention_masks.append(get_all_attention_masks(args, sample.unsqueeze(0), model))
for i in range(len(attention_masks[0])):
os.makedirs(f"{args.save_path}", exist_ok=True)
os.makedirs(f"{args.save_path}/{args.model_name}_{args.threshold}", exist_ok=True)
for idx, (sample, mask) in enumerate(zip(samples, attention_masks)):
for head_idx, mask_h in enumerate(mask[i]):
f_name = f"{args.save_path}/{args.model_name}_{args.threshold}/im_{idx:03d}_{head_idx}_blk{i}.png"
display_instances(sample, mask_h, fname=f_name)
def generate_images_per_model_full(args, model, device):
model.to(device)
model.eval()
samples = []
for fol_name in tqdm(os.listdir(args.test_dir)):
cnt=0
for im_name in tqdm(os.listdir(args.test_dir+"/"+fol_name)):
if(cnt>15):
break
cnt+=1
im_path = f"{args.test_dir}/{fol_name}/{im_name}"
img = Image.open(f"{im_path}").resize((224, 224))
img = torchvision.transforms.functional.to_tensor(img)
if img.shape[0] == 1:
img = torch.cat([img, img, img], dim=0)
samples.append(img)
samples = torch.stack(samples, 0).to(device)
attention_masks = []
for sample in samples:
attention_masks.append(get_all_attention_masks(args, sample.unsqueeze(0), model))
os.makedirs(f"{args.save_path}", exist_ok=True)
os.makedirs(f"{args.save_path}/batched/{args.model_name}_{args.threshold}", exist_ok=True)
for idx, (sample, mask) in enumerate(zip(samples, attention_masks)):
f_name = f"{args.save_path}/batched/{args.model_name}_{args.threshold}/im_{idx:03d}all.png"
figsize=(5, 5)
# plt.ioff()
# plt.figure()
plt.figure(figsize=(224,224),frameon=False)
gs1 = gridspec.GridSpec(len(mask[0]),len(attention_masks[0]))
gs1.update(wspace=0, hspace=0) # set the spacing between axes.
for i in range(len(attention_masks[0])):
for head_idx, mask_h in enumerate(mask[i]):
img = display_instances(sample, mask_h, fname=f_name,batch=True)
pos=i+head_idx*12
# axs[i,head_idx].set_axis_off()
# fig.add_subplot(rows, columns, pos)
plt.subplot(gs1[pos])
plt.imshow(img.astype(np.uint8),aspect="equal")
# img.close(fig)
# plt.subplots_adjust(wspace=0, hspace=0)
plt.tight_layout()
plt.savefig(f_name)
plt.close()
# fig = plt.figure(figsize=(8, 8))
# columns = len(attention_masks[0])
# rows = len(attention_masks[0][0])
# for i in range(1, columns*rows +1):
# img = np.random.randint(10, size=(h,w))
# fig.add_subplot(rows, columns, i)
# plt.imshow(img)
# plt.show()
if __name__ == '__main__':
opt = parse_args()
device = torch.device('cuda:0' if torch.cuda.is_available() else 'cpu')
# test_dataset, test_data_loader = get_voc_dataset()
test_data_loader=None
# data_transform = transforms.Compose([
# transforms.Resize((512, 512)),
# transforms.ToTensor(),
# transforms.Normalize((0.485, 0.456, 0.406), (0.229, 0.224, 0.225)),
# ])
# def load_target(image):
# image = np.array(image)
# image = torch.from_numpy(image)
# return image
# target_transform = transforms.Compose([
# transforms.Resize((512, 512)),
# transforms.Lambda(load_target),
# ])
# img = transform(img)
# transform = transforms.Compose([
# transforms.Resize((224,224)),
# transforms.ToTensor(),
# transforms.Normalize(
# mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225])
# ])
# dataset = torchvision.datasets.VOCSegmentation(root=opt.test_dir, image_set="val", transform=data_transform,
# target_transform=target_transform)
# test_data_loader = torch.utils.data.DataLoader(dataset, batch_size=1, drop_last=False)
environments = [f.name for f in os.scandir(opt.test_dir) if f.is_dir()]
environments = sorted(environments)
domain=environments[int(opt.domain)]
if opt.domain is not None:
opt.save_path=opt.save_path+"/"+domain
# opt.test_dir=opt.test_dir+"/"+domain
opt.test_dir=opt.test_dir
print("test_dir:",opt.test_dir)
opt.is_dist = "Dist" in opt.model_name
if not (opt.is_dist):
opt.use_shape=False
if opt.use_shape:
assert opt.is_dist, "shape token only present in distilled models"
# misc.Class_names=["bird","bobcat","cat","coyote","dog","empty","oppossum","rabit","raccoon","squirrel"]
misc.Class_names=["bird","car","chair","dog","person"]
if opt.pretrained_weights=="":
print("Zero shot model")
model, preprocess = clip.load('ViT-B/16', device)
# model=model.float()
model=model.float()
elif opt.rand_init:
model, mean, std = get_model(opt, pretrained=False)
else:
model, mean, std = get_model(opt)
if opt.pretrained_weights.startswith("https://"):
state_dict = torch.hub.load_state_dict_from_url(url=opt.pretrained_weights, map_location="cpu")
# else:
# # state_dict = torch.load(opt.pretrained_weights, map_location="cpu")
# # msg = model.load_state_dict(state_dict["model"], strict=False)
# # print(msg)
if opt.generate_images:
generate_images_per_model(opt, model, device,domain)
elif opt.generate_images_blockwise:
generate_images_per_model_per_block(opt, model, device)
elif opt.generate_images_block_asbatch:
os.makedirs(opt.save_path, exist_ok=True)
generate_images_per_model_full(opt, model, device)
else:
model_accuracy = run_eval_self(opt, model, device)
os.makedirs(opt.jacard_out, exist_ok=True)
sys.stdout = misc.Tee(os.path.join(opt.jacard_out, 'out.txt'))
print(f"Jaccard index for {opt.model_name}:{opt.domain}: {model_accuracy}")