forked from mrq/DL-Art-School
"Clean up" SRFlow
This commit is contained in:
James Betker
parent
d7877d0a36
commit
1e0d7be3ce
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@ -3,11 +3,10 @@ from torch import nn as nn
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from models.archs.srflow import thops
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from models.archs.srflow.flow import Conv2d, Conv2dZeros
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from utils.util import opt_get
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class CondAffineSeparatedAndCond(nn.Module):
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def __init__(self, in_channels, opt):
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def __init__(self, in_channels, hidden_channels=64, affine_eps=.00001):
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super().__init__()
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self.need_features = True
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self.in_channels = in_channels
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@ -15,10 +14,8 @@ class CondAffineSeparatedAndCond(nn.Module):
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self.kernel_hidden = 1
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self.affine_eps = 0.0001
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self.n_hidden_layers = 1
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hidden_channels = opt_get(opt, ['network_G', 'flow', 'CondAffineSeparatedAndCond', 'hidden_channels'])
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self.hidden_channels = 64 if hidden_channels is None else hidden_channels
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self.affine_eps = opt_get(opt, ['network_G', 'flow', 'CondAffineSeparatedAndCond', 'eps'], 0.0001)
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self.hidden_channels = hidden_channels
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self.affine_eps = affine_eps
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self.channels_for_nn = self.in_channels // 2
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self.channels_for_co = self.in_channels - self.channels_for_nn
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@ -1,10 +1,7 @@
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import torch
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from torch import nn as nn
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import models.archs.srflow
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import models.archs.srflow.Permutations
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from models.archs.srflow import flow, thops, FlowAffineCouplingsAblation
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from utils.util import opt_get
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from models.archs.srflow import flow, thops, FlowAffineCouplingsAblation, FlowActNorms, Permutations
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def getConditional(rrdbResults, position):
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@ -28,7 +25,7 @@ class FlowStep(nn.Module):
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def __init__(self, in_channels, hidden_channels,
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actnorm_scale=1.0, flow_permutation="invconv", flow_coupling="additive",
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LU_decomposed=False, opt=None, image_injector=None, idx=None, acOpt=None, normOpt=None, in_shape=None,
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LU_decomposed=False, image_injector=None, idx=None, acOpt=None, normOpt=None, in_shape=None,
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position=None):
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# check configures
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assert flow_permutation in FlowStep.FlowPermutation, \
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@ -47,17 +44,16 @@ class FlowStep(nn.Module):
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self.acOpt = acOpt
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# 1. actnorm
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self.actnorm = models.modules.FlowActNorms.ActNorm2d(in_channels, actnorm_scale)
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self.actnorm = FlowActNorms.ActNorm2d(in_channels, actnorm_scale)
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# 2. permute
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if flow_permutation == "invconv":
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self.invconv = models.modules.Permutations.InvertibleConv1x1(
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self.invconv = Permutations.InvertibleConv1x1(
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in_channels, LU_decomposed=LU_decomposed)
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# 3. coupling
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if flow_coupling == "CondAffineSeparatedAndCond":
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self.affine = models.modules.FlowAffineCouplingsAblation.CondAffineSeparatedAndCond(in_channels=in_channels,
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opt=opt)
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self.affine = FlowAffineCouplingsAblation.CondAffineSeparatedAndCond(in_channels=in_channels)
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elif flow_coupling == "noCoupling":
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pass
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else:
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@ -3,34 +3,39 @@ import torch
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from torch import nn as nn
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import models.archs.srflow.Split
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from models.archs.srflow import flow, thops
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from models.archs.srflow import flow, thops, Split
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from models.archs.srflow.Split import Split2d
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from models.archs.srflow.glow_arch import f_conv2d_bias
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from models.archs.srflow.FlowStep import FlowStep
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from utils.util import opt_get
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import torchvision
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class FlowUpsamplerNet(nn.Module):
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def __init__(self, image_shape, hidden_channels, K, L=None,
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def __init__(self, image_shape, hidden_channels, scale,
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rrdb_blocks,
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actnorm_scale=1.0,
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flow_permutation=None,
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flow_permutation='invconv',
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flow_coupling="affine",
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LU_decomposed=False, opt=None):
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LU_decomposed=False, K=16, L=3,
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norm_opt=None,
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n_bypass_channels=None):
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super().__init__()
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self.layers = nn.ModuleList()
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self.output_shapes = []
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self.L = opt_get(opt, ['network_G', 'flow', 'L'])
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self.K = opt_get(opt, ['network_G', 'flow', 'K'])
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self.L = L
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self.K = K
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self.scale=scale
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if isinstance(self.K, int):
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self.K = [K for K in [K, ] * (self.L + 1)]
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self.opt = opt
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H, W, self.C = image_shape
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self.image_shape = image_shape
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self.check_image_shape()
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if opt['scale'] == 16:
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if scale == 16:
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self.levelToName = {
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0: 'fea_up16',
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1: 'fea_up8',
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@ -39,7 +44,7 @@ class FlowUpsamplerNet(nn.Module):
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4: 'fea_up1',
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}
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if opt['scale'] == 8:
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if scale == 8:
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self.levelToName = {
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0: 'fea_up8',
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1: 'fea_up4',
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@ -48,7 +53,7 @@ class FlowUpsamplerNet(nn.Module):
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4: 'fea_up0'
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}
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elif opt['scale'] == 4:
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elif scale == 4:
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self.levelToName = {
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0: 'fea_up4',
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1: 'fea_up2',
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@ -57,14 +62,10 @@ class FlowUpsamplerNet(nn.Module):
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4: 'fea_up-1'
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}
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affineInCh = self.get_affineInCh(opt_get)
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flow_permutation = self.get_flow_permutation(flow_permutation, opt)
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normOpt = opt_get(opt, ['network_G', 'flow', 'norm'])
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affineInCh = self.get_affineInCh(rrdb_blocks)
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conditional_channels = {}
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n_rrdb = self.get_n_rrdb_channels(opt, opt_get)
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n_bypass_channels = opt_get(opt, ['network_G', 'flow', 'levelConditional', 'n_channels'])
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n_rrdb = self.get_n_rrdb_channels(rrdb_blocks)
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conditional_channels[0] = n_rrdb
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for level in range(1, self.L + 1):
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# Level 1 gets conditionals from 2, 3, 4 => L - level
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@ -80,37 +81,29 @@ class FlowUpsamplerNet(nn.Module):
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H, W = self.arch_squeeze(H, W)
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# 2. K FlowStep
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self.arch_additionalFlowAffine(H, LU_decomposed, W, actnorm_scale, hidden_channels, opt)
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self.arch_additionalFlowAffine(H, LU_decomposed, W, actnorm_scale, hidden_channels)
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self.arch_FlowStep(H, self.K[level], LU_decomposed, W, actnorm_scale, affineInCh, flow_coupling,
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flow_permutation,
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hidden_channels, normOpt, opt, opt_get,
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n_conditinal_channels=conditional_channels[level])
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hidden_channels, norm_opt,
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n_conditional_channels=conditional_channels[level])
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# Split
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self.arch_split(H, W, level, self.L, opt, opt_get)
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self.arch_split(H, W, level, self.L)
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if opt_get(opt, ['network_G', 'flow', 'split', 'enable']):
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self.f = f_conv2d_bias(affineInCh, 2 * 3 * 64 // 2 // 2)
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else:
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self.f = f_conv2d_bias(affineInCh, 2 * 3 * 64)
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self.H = H
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self.W = W
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self.scaleH = 160 / H
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self.scaleW = 160 / W
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def get_n_rrdb_channels(self, opt, opt_get):
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blocks = opt_get(opt, ['network_G', 'flow', 'stackRRDB', 'blocks'])
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def get_n_rrdb_channels(self, blocks):
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n_rrdb = 64 if blocks is None else (len(blocks) + 1) * 64
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return n_rrdb
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def arch_FlowStep(self, H, K, LU_decomposed, W, actnorm_scale, affineInCh, flow_coupling, flow_permutation,
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hidden_channels, normOpt, opt, opt_get, n_conditinal_channels=None):
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condAff = self.get_condAffSetting(opt, opt_get)
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hidden_channels, normOpt, n_conditional_channels=None, condAff=None):
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if condAff is not None:
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condAff['in_channels_rrdb'] = n_conditinal_channels
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condAff['in_channels_rrdb'] = n_conditional_channels
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for k in range(K):
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position_name = get_position_name(H, self.opt['scale'])
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position_name = self.get_position_name(H, self.scale)
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if normOpt: normOpt['position'] = position_name
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self.layers.append(
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@ -121,46 +114,35 @@ class FlowUpsamplerNet(nn.Module):
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flow_coupling=flow_coupling,
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acOpt=condAff,
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position=position_name,
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LU_decomposed=LU_decomposed, opt=opt, idx=k, normOpt=normOpt))
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LU_decomposed=LU_decomposed, idx=k, normOpt=normOpt))
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self.output_shapes.append(
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[-1, self.C, H, W])
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def get_condAffSetting(self, opt, opt_get):
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condAff = opt_get(opt, ['network_G', 'flow', 'condAff']) or None
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condAff = opt_get(opt, ['network_G', 'flow', 'condFtAffine']) or condAff
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return condAff
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def arch_split(self, H, W, L, levels, opt, opt_get):
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correct_splits = opt_get(opt, ['network_G', 'flow', 'split', 'correct_splits'], False)
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def arch_split(self, H, W, L, levels, split_flow=True, correct_splits=False, logs_eps=0, consume_ratio=.5, split_conditional=False, cond_channels=None, split_type='Split2d'):
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correction = 0 if correct_splits else 1
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if opt_get(opt, ['network_G', 'flow', 'split', 'enable']) and L < levels - correction:
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logs_eps = opt_get(opt, ['network_G', 'flow', 'split', 'logs_eps']) or 0
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consume_ratio = opt_get(opt, ['network_G', 'flow', 'split', 'consume_ratio']) or 0.5
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position_name = get_position_name(H, self.opt['scale'])
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position = position_name if opt_get(opt, ['network_G', 'flow', 'split', 'conditional']) else None
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cond_channels = opt_get(opt, ['network_G', 'flow', 'split', 'cond_channels'])
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if split_flow and L < levels - correction:
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logs_eps = logs_eps
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consume_ratio = consume_ratio
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position_name = self.get_position_name(H, self.scale)
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position = position_name if split_conditional else None
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cond_channels = 0 if cond_channels is None else cond_channels
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t = opt_get(opt, ['network_G', 'flow', 'split', 'type'], 'Split2d')
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if t == 'Split2d':
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split = models.modules.Split.Split2d(num_channels=self.C, logs_eps=logs_eps, position=position,
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cond_channels=cond_channels, consume_ratio=consume_ratio, opt=opt)
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if split_type == 'Split2d':
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split = Split.Split2d(num_channels=self.C, logs_eps=logs_eps, position=position,
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cond_channels=cond_channels, consume_ratio=consume_ratio)
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self.layers.append(split)
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self.output_shapes.append([-1, split.num_channels_pass, H, W])
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self.C = split.num_channels_pass
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def arch_additionalFlowAffine(self, H, LU_decomposed, W, actnorm_scale, hidden_channels, opt):
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if 'additionalFlowNoAffine' in opt['network_G']['flow']:
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n_additionalFlowNoAffine = int(opt['network_G']['flow']['additionalFlowNoAffine'])
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for _ in range(n_additionalFlowNoAffine):
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def arch_additionalFlowAffine(self, H, LU_decomposed, W, actnorm_scale, hidden_channels, additionalFlowNoAffine=2):
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for _ in range(additionalFlowNoAffine):
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self.layers.append(
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FlowStep(in_channels=self.C,
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hidden_channels=hidden_channels,
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actnorm_scale=actnorm_scale,
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flow_permutation='invconv',
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flow_coupling='noCoupling',
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LU_decomposed=LU_decomposed, opt=opt))
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LU_decomposed=LU_decomposed))
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self.output_shapes.append(
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[-1, self.C, H, W])
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@ -170,13 +152,8 @@ class FlowUpsamplerNet(nn.Module):
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self.output_shapes.append([-1, self.C, H, W])
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return H, W
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def get_flow_permutation(self, flow_permutation, opt):
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flow_permutation = opt['network_G']['flow'].get('flow_permutation', 'invconv')
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return flow_permutation
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def get_affineInCh(self, opt_get):
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affineInCh = opt_get(self.opt, ['network_G', 'flow', 'stackRRDB', 'blocks']) or []
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affineInCh = (len(affineInCh) + 1) * 64
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def get_affineInCh(self, rrdb_blocks):
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affineInCh = (len(rrdb_blocks) + 1) * 64
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return affineInCh
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def check_image_shape(self):
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@ -204,14 +181,14 @@ class FlowUpsamplerNet(nn.Module):
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level_conditionals = {}
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bypasses = {}
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L = opt_get(self.opt, ['network_G', 'flow', 'L'])
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L = self.L
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for level in range(1, L + 1):
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bypasses[level] = torch.nn.functional.interpolate(gt, scale_factor=2 ** -level, mode='bilinear', align_corners=False)
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for layer, shape in zip(self.layers, self.output_shapes):
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size = shape[2]
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level = int(np.log(160 / size) / np.log(2))
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level = int(np.log(self.image_shape[0] / size) / np.log(2))
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if level > 0 and level not in level_conditionals.keys():
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level_conditionals[level] = rrdbResults[self.levelToName[level]]
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@ -255,15 +232,12 @@ class FlowUpsamplerNet(nn.Module):
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# debug.imwrite("fl_fea", fl_fea)
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bypasses = {}
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level_conditionals = {}
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if not opt_get(self.opt, ['network_G', 'flow', 'levelConditional', 'conditional']) == True:
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for level in range(self.L + 1):
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level_conditionals[level] = rrdbResults[self.levelToName[level]]
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for layer, shape in zip(reversed(self.layers), reversed(self.output_shapes)):
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size = shape[2]
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level = int(np.log(160 / size) / np.log(2))
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# size = fl_fea.shape[2]
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# level = int(np.log(160 / size) / np.log(2))
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level = int(np.log(self.H / size) / np.log(2))
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if isinstance(layer, Split2d):
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fl_fea, logdet = self.forward_split2d_reverse(eps_std, epses, fl_fea, layer,
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@ -287,7 +261,7 @@ class FlowUpsamplerNet(nn.Module):
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return fl_fea, logdet
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def get_position_name(H, scale):
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downscale_factor = 160 // H
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def get_position_name(self, H, scale):
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downscale_factor = self.image_shape[0] // H
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position_name = 'fea_up{}'.format(scale / downscale_factor)
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return position_name
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@ -3,7 +3,7 @@ import torch
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from torch import nn as nn
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from torch.nn import functional as F
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from models.modules import thops
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from models.archs.srflow import thops
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class InvertibleConv1x1(nn.Module):
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@ -3,7 +3,7 @@ import torch
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import torch.nn as nn
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import torch.nn.functional as F
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import models.archs.srflow.module_util as mutil
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from utils.util import opt_get
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from utils.util import opt_get, checkpoint
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class ResidualDenseBlock_5C(nn.Module):
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@ -46,11 +46,14 @@ class RRDB(nn.Module):
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class RRDBNet(nn.Module):
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def __init__(self, in_nc, out_nc, nf, nb, gc=32, scale=4, opt=None):
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self.opt = opt
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def __init__(self, in_nc, out_nc, nf, nb, gc=32, scale=4, block_outputs=[], fea_up0=True,
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fea_up1=False):
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super(RRDBNet, self).__init__()
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RRDB_block_f = functools.partial(RRDB, nf=nf, gc=gc)
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self.scale = scale
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self.block_outputs = block_outputs
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self.fea_up0 = fea_up0
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self.fea_up1 = fea_up1
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self.conv_first = nn.Conv2d(in_nc, nf, 3, 1, 1, bias=True)
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self.RRDB_trunk = mutil.make_layer(RRDB_block_f, nb)
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@ -73,11 +76,11 @@ class RRDBNet(nn.Module):
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def forward(self, x, get_steps=False):
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fea = self.conv_first(x)
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block_idxs = opt_get(self.opt, ['network_G', 'flow', 'stackRRDB', 'blocks']) or []
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block_idxs = self.block_outputs or []
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block_results = {}
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for idx, m in enumerate(self.RRDB_trunk.children()):
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fea = m(fea)
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fea = checkpoint(m, fea)
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for b in block_idxs:
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if b == idx:
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block_results["block_{}".format(idx)] = fea
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@ -117,11 +120,9 @@ class RRDBNet(nn.Module):
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'fea_up32': fea_up32,
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'out': out}
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fea_up0_en = opt_get(self.opt, ['network_G', 'flow', 'fea_up0']) or False
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if fea_up0_en:
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if self.fea_up0:
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results['fea_up0'] = F.interpolate(last_lr_fea, scale_factor=1/2, mode='bilinear', align_corners=False, recompute_scale_factor=True)
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fea_upn1_en = opt_get(self.opt, ['network_G', 'flow', 'fea_up-1']) or False
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if fea_upn1_en:
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if self.fea_up1:
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results['fea_up-1'] = F.interpolate(last_lr_fea, scale_factor=1/4, mode='bilinear', align_corners=False, recompute_scale_factor=True)
|
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if get_steps:
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@ from models.archs.srflow.flow import Conv2dZeros, GaussianDiag
|
|||
|
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|
||||
class Split2d(nn.Module):
|
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def __init__(self, num_channels, logs_eps=0, cond_channels=0, position=None, consume_ratio=0.5, opt=None):
|
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def __init__(self, num_channels, logs_eps=0, cond_channels=0, position=None, consume_ratio=0.5):
|
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super().__init__()
|
||||
|
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self.num_channels_consume = int(round(num_channels * consume_ratio))
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|
|
@ -17,7 +17,6 @@ class Split2d(nn.Module):
|
|||
out_channels=self.num_channels_consume * 2)
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self.logs_eps = logs_eps
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||||
self.position = position
|
||||
self.opt = opt
|
||||
|
||||
def split2d_prior(self, z, ft):
|
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if ft is not None:
|
||||
|
|
|
|||
|
|
@ -4,57 +4,41 @@ import torch
|
|||
import torch.nn as nn
|
||||
import torch.nn.functional as F
|
||||
import numpy as np
|
||||
|
||||
from models.archs.srflow.FlowUpsamplerNet import FlowUpsamplerNet
|
||||
import models.archs.srflow.thops as thops
|
||||
import models.archs.srflow.flow as flow
|
||||
from utils.util import opt_get
|
||||
from models.archs.srflow.RRDBNet_arch import RRDBNet
|
||||
|
||||
|
||||
class SRFlowNet(nn.Module):
|
||||
def __init__(self, in_nc, out_nc, nf, nb, gc=32, scale=4, K=None, opt=None, step=None):
|
||||
def __init__(self, in_nc, out_nc, nf, nb, quant, flow_block_maps, noise_quant,
|
||||
hidden_channels=64, gc=32, scale=4, K=16, L=3, train_rrdb_at_step=0,
|
||||
hr_img_shape=(128,128,3), coupling='CondAffineSeparatedAndCond'):
|
||||
super(SRFlowNet, self).__init__()
|
||||
|
||||
self.opt = opt
|
||||
self.quant = 255 if opt_get(opt, ['datasets', 'train', 'quant']) is \
|
||||
None else opt_get(opt, ['datasets', 'train', 'quant'])
|
||||
self.RRDB = RRDBNet(in_nc, out_nc, nf, nb, gc, scale, opt)
|
||||
hidden_channels = opt_get(opt, ['network_G', 'flow', 'hidden_channels'])
|
||||
hidden_channels = hidden_channels or 64
|
||||
self.RRDB_training = True # Default is true
|
||||
self.scale = scale
|
||||
self.noise_quant = noise_quant
|
||||
self.quant = quant
|
||||
self.flow_block_maps = flow_block_maps
|
||||
self.RRDB = RRDBNet(in_nc, out_nc, nf, nb, gc, scale, flow_block_maps)
|
||||
self.train_rrdb_step = train_rrdb_at_step
|
||||
self.RRDB_training = True
|
||||
|
||||
train_RRDB_delay = opt_get(self.opt, ['network_G', 'train_RRDB_delay'])
|
||||
set_RRDB_to_train = False
|
||||
if set_RRDB_to_train:
|
||||
self.set_rrdb_training(True)
|
||||
|
||||
self.flowUpsamplerNet = \
|
||||
FlowUpsamplerNet((160, 160, 3), hidden_channels, K,
|
||||
flow_coupling=opt['network_G']['flow']['coupling'], opt=opt)
|
||||
self.flowUpsamplerNet = FlowUpsamplerNet(image_shape=hr_img_shape,
|
||||
hidden_channels=hidden_channels,
|
||||
scale=scale, rrdb_blocks=flow_block_maps,
|
||||
K=K, L=L, flow_coupling=coupling)
|
||||
self.i = 0
|
||||
|
||||
def set_rrdb_training(self, trainable):
|
||||
if self.RRDB_training != trainable:
|
||||
for p in self.RRDB.parameters():
|
||||
p.requires_grad = trainable
|
||||
self.RRDB_training = trainable
|
||||
return True
|
||||
return False
|
||||
|
||||
def forward(self, gt=None, lr=None, z=None, eps_std=None, reverse=False, epses=None, reverse_with_grad=False,
|
||||
def forward(self, gt=None, lr=None, reverse=False, z=None, eps_std=None, epses=None, reverse_with_grad=False,
|
||||
lr_enc=None,
|
||||
add_gt_noise=False, step=None, y_label=None):
|
||||
if not reverse:
|
||||
return self.normal_flow(gt, lr, epses=epses, lr_enc=lr_enc, add_gt_noise=add_gt_noise, step=step,
|
||||
y_onehot=y_label)
|
||||
else:
|
||||
# assert lr.shape[0] == 1
|
||||
assert lr.shape[1] == 3
|
||||
# assert lr.shape[2] == 20
|
||||
# assert lr.shape[3] == 20
|
||||
# assert z.shape[0] == 1
|
||||
# assert z.shape[1] == 3 * 8 * 8
|
||||
# assert z.shape[2] == 20
|
||||
# assert z.shape[3] == 20
|
||||
if reverse_with_grad:
|
||||
return self.reverse_flow(lr, z, y_onehot=y_label, eps_std=eps_std, epses=epses, lr_enc=lr_enc,
|
||||
add_gt_noise=add_gt_noise)
|
||||
|
|
@ -74,8 +58,7 @@ class SRFlowNet(nn.Module):
|
|||
|
||||
if add_gt_noise:
|
||||
# Setup
|
||||
noiseQuant = opt_get(self.opt, ['network_G', 'flow', 'augmentation', 'noiseQuant'], True)
|
||||
if noiseQuant:
|
||||
if self.noise_quant:
|
||||
z = z + ((torch.rand(z.shape, device=z.device) - 0.5) / self.quant)
|
||||
logdet = logdet + float(-np.log(self.quant) * pixels)
|
||||
|
||||
|
|
@ -100,19 +83,18 @@ class SRFlowNet(nn.Module):
|
|||
|
||||
def rrdbPreprocessing(self, lr):
|
||||
rrdbResults = self.RRDB(lr, get_steps=True)
|
||||
block_idxs = opt_get(self.opt, ['network_G', 'flow', 'stackRRDB', 'blocks']) or []
|
||||
block_idxs = self.flow_block_maps
|
||||
if len(block_idxs) > 0:
|
||||
concat = torch.cat([rrdbResults["block_{}".format(idx)] for idx in block_idxs], dim=1)
|
||||
|
||||
if opt_get(self.opt, ['network_G', 'flow', 'stackRRDB', 'concat']) or False:
|
||||
keys = ['last_lr_fea', 'fea_up1', 'fea_up2', 'fea_up4']
|
||||
if 'fea_up0' in rrdbResults.keys():
|
||||
keys.append('fea_up0')
|
||||
if 'fea_up-1' in rrdbResults.keys():
|
||||
keys.append('fea_up-1')
|
||||
if self.opt['scale'] >= 8:
|
||||
if self.scale >= 8:
|
||||
keys.append('fea_up8')
|
||||
if self.opt['scale'] == 16:
|
||||
if self.scale == 16:
|
||||
keys.append('fea_up16')
|
||||
for k in keys:
|
||||
h = rrdbResults[k].shape[2]
|
||||
|
|
@ -127,7 +109,7 @@ class SRFlowNet(nn.Module):
|
|||
|
||||
def reverse_flow(self, lr, z, y_onehot, eps_std, epses=None, lr_enc=None, add_gt_noise=True):
|
||||
logdet = torch.zeros_like(lr[:, 0, 0, 0])
|
||||
pixels = thops.pixels(lr) * self.opt['scale'] ** 2
|
||||
pixels = thops.pixels(lr) * self.scale ** 2
|
||||
|
||||
if add_gt_noise:
|
||||
logdet = logdet - float(-np.log(self.quant) * pixels)
|
||||
|
|
@ -139,3 +121,15 @@ class SRFlowNet(nn.Module):
|
|||
logdet=logdet)
|
||||
|
||||
return x, logdet
|
||||
|
||||
def set_rrdb_training(self, trainable):
|
||||
if self.RRDB_training != trainable:
|
||||
for p in self.RRDB.parameters():
|
||||
if not trainable:
|
||||
p.DO_NOT_TRAIN = True
|
||||
elif hasattr(p, "DO_NOT_TRAIN"):
|
||||
del p.DO_NOT_TRAIN
|
||||
self.RRDB_training = trainable
|
||||
|
||||
def update_for_step(self, step, experiments_path='.'):
|
||||
self.set_rrdb_training(step > self.train_rrdb_step)
|
||||
Loading…
Reference in New Issue
Block a user