Upload Myloss.py

Myloss.py

@@ -0,0 +1,157 @@
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+import math
+from torchvision.models.vgg import vgg16
+import numpy as np
+
+
+class L_color(nn.Module):
+
+    def __init__(self):
+        super(L_color, self).__init__()
+
+    def forward(self, x ):
+
+        b,c,h,w = x.shape
+
+        mean_rgb = torch.mean(x,[2,3],keepdim=True)
+        mr,mg, mb = torch.split(mean_rgb, 1, dim=1)
+        Drg = torch.pow(mr-mg,2)
+        Drb = torch.pow(mr-mb,2)
+        Dgb = torch.pow(mb-mg,2)
+        k = torch.pow(torch.pow(Drg,2) + torch.pow(Drb,2) + torch.pow(Dgb,2),0.5)
+
+
+        return k
+
+			
+class L_spa(nn.Module):
+
+    def __init__(self):
+        super(L_spa, self).__init__()
+        # print(1)kernel = torch.FloatTensor(kernel).unsqueeze(0).unsqueeze(0)
+        kernel_left = torch.FloatTensor( [[0,0,0],[-1,1,0],[0,0,0]]).cuda().unsqueeze(0).unsqueeze(0)
+        kernel_right = torch.FloatTensor( [[0,0,0],[0,1,-1],[0,0,0]]).cuda().unsqueeze(0).unsqueeze(0)
+        kernel_up = torch.FloatTensor( [[0,-1,0],[0,1, 0 ],[0,0,0]]).cuda().unsqueeze(0).unsqueeze(0)
+        kernel_down = torch.FloatTensor( [[0,0,0],[0,1, 0],[0,-1,0]]).cuda().unsqueeze(0).unsqueeze(0)
+        self.weight_left = nn.Parameter(data=kernel_left, requires_grad=False)
+        self.weight_right = nn.Parameter(data=kernel_right, requires_grad=False)
+        self.weight_up = nn.Parameter(data=kernel_up, requires_grad=False)
+        self.weight_down = nn.Parameter(data=kernel_down, requires_grad=False)
+        self.pool = nn.AvgPool2d(4)
+    def forward(self, org , enhance ):
+        b,c,h,w = org.shape
+
+        org_mean = torch.mean(org,1,keepdim=True)
+        enhance_mean = torch.mean(enhance,1,keepdim=True)
+
+        org_pool =  self.pool(org_mean)			
+        enhance_pool = self.pool(enhance_mean)	
+
+        weight_diff =torch.max(torch.FloatTensor([1]).cuda() + 10000*torch.min(org_pool - torch.FloatTensor([0.3]).cuda(),torch.FloatTensor([0]).cuda()),torch.FloatTensor([0.5]).cuda())
+        E_1 = torch.mul(torch.sign(enhance_pool - torch.FloatTensor([0.5]).cuda()) ,enhance_pool-org_pool)
+
+
+        D_org_letf = F.conv2d(org_pool , self.weight_left, padding=1)
+        D_org_right = F.conv2d(org_pool , self.weight_right, padding=1)
+        D_org_up = F.conv2d(org_pool , self.weight_up, padding=1)
+        D_org_down = F.conv2d(org_pool , self.weight_down, padding=1)
+
+        D_enhance_letf = F.conv2d(enhance_pool , self.weight_left, padding=1)
+        D_enhance_right = F.conv2d(enhance_pool , self.weight_right, padding=1)
+        D_enhance_up = F.conv2d(enhance_pool , self.weight_up, padding=1)
+        D_enhance_down = F.conv2d(enhance_pool , self.weight_down, padding=1)
+
+        D_left = torch.pow(D_org_letf - D_enhance_letf,2)
+        D_right = torch.pow(D_org_right - D_enhance_right,2)
+        D_up = torch.pow(D_org_up - D_enhance_up,2)
+        D_down = torch.pow(D_org_down - D_enhance_down,2)
+        E = (D_left + D_right + D_up +D_down)
+        # E = 25*(D_left + D_right + D_up +D_down)
+
+        return E
+class L_exp(nn.Module):
+
+    def __init__(self,patch_size,mean_val):
+        super(L_exp, self).__init__()
+        # print(1)
+        self.pool = nn.AvgPool2d(patch_size)
+        self.mean_val = mean_val
+    def forward(self, x ):
+
+        b,c,h,w = x.shape
+        x = torch.mean(x,1,keepdim=True)
+        mean = self.pool(x)
+
+        d = torch.mean(torch.pow(mean- torch.FloatTensor([self.mean_val] ).cuda(),2))
+        return d
+        
+class L_TV(nn.Module):
+    def __init__(self,TVLoss_weight=1):
+        super(L_TV,self).__init__()
+        self.TVLoss_weight = TVLoss_weight
+
+    def forward(self,x):
+        batch_size = x.size()[0]
+        h_x = x.size()[2]
+        w_x = x.size()[3]
+        count_h =  (x.size()[2]-1) * x.size()[3]
+        count_w = x.size()[2] * (x.size()[3] - 1)
+        h_tv = torch.pow((x[:,:,1:,:]-x[:,:,:h_x-1,:]),2).sum()
+        w_tv = torch.pow((x[:,:,:,1:]-x[:,:,:,:w_x-1]),2).sum()
+        return self.TVLoss_weight*2*(h_tv/count_h+w_tv/count_w)/batch_size
+class Sa_Loss(nn.Module):
+    def __init__(self):
+        super(Sa_Loss, self).__init__()
+        # print(1)
+    def forward(self, x ):
+        # self.grad = np.ones(x.shape,dtype=np.float32)
+        b,c,h,w = x.shape
+        # x_de = x.cpu().detach().numpy()
+        r,g,b = torch.split(x , 1, dim=1)
+        mean_rgb = torch.mean(x,[2,3],keepdim=True)
+        mr,mg, mb = torch.split(mean_rgb, 1, dim=1)
+        Dr = r-mr
+        Dg = g-mg
+        Db = b-mb
+        k =torch.pow( torch.pow(Dr,2) + torch.pow(Db,2) + torch.pow(Dg,2),0.5)
+        # print(k)
+        
+
+        k = torch.mean(k)
+        return k
+
+class perception_loss(nn.Module):
+    def __init__(self):
+        super(perception_loss, self).__init__()
+        features = vgg16(pretrained=True).features
+        self.to_relu_1_2 = nn.Sequential() 
+        self.to_relu_2_2 = nn.Sequential() 
+        self.to_relu_3_3 = nn.Sequential()
+        self.to_relu_4_3 = nn.Sequential()
+
+        for x in range(4):
+            self.to_relu_1_2.add_module(str(x), features[x])
+        for x in range(4, 9):
+            self.to_relu_2_2.add_module(str(x), features[x])
+        for x in range(9, 16):
+            self.to_relu_3_3.add_module(str(x), features[x])
+        for x in range(16, 23):
+            self.to_relu_4_3.add_module(str(x), features[x])
+        
+        # don't need the gradients, just want the features
+        for param in self.parameters():
+            param.requires_grad = False
+
+    def forward(self, x):
+        h = self.to_relu_1_2(x)
+        h_relu_1_2 = h
+        h = self.to_relu_2_2(h)
+        h_relu_2_2 = h
+        h = self.to_relu_3_3(h)
+        h_relu_3_3 = h
+        h = self.to_relu_4_3(h)
+        h_relu_4_3 = h
+        # out = (h_relu_1_2, h_relu_2_2, h_relu_3_3, h_relu_4_3)
+        return h_relu_4_3