colorflow_utils/utils.py

import os
import random
import numpy as np
import torch
import torch.nn as nn
from torch.utils.data import Dataset
from PIL import Image
from torchvision import transforms
from transformers import CLIPVisionModelWithProjection, CLIPImageProcessor
import matplotlib.pyplot as plt
import cv2
import torch.nn.functional as F

#torch.set_printoptions(precision=10)


class _bn_relu_conv(nn.Module):
    def __init__(self, in_filters, nb_filters, fw, fh, subsample=1):
        super(_bn_relu_conv, self).__init__()
        self.model = nn.Sequential(
            nn.BatchNorm2d(in_filters, eps=1e-3),
            nn.LeakyReLU(0.2),
            nn.Conv2d(in_filters, nb_filters, (fw, fh), stride=subsample, padding=(fw//2, fh//2), padding_mode='zeros')
        )

    def forward(self, x):
        return self.model(x)

        # the following are for debugs
        print("****", np.max(x.cpu().numpy()), np.min(x.cpu().numpy()), np.mean(x.cpu().numpy()), np.std(x.cpu().numpy()), x.shape)
        for i,layer in enumerate(self.model):
            if i != 2:
                x = layer(x)
            else:
                x = layer(x)
                #x = nn.functional.pad(x, (1, 1, 1, 1), mode='constant', value=0)
            print("____", np.max(x.cpu().numpy()), np.min(x.cpu().numpy()), np.mean(x.cpu().numpy()), np.std(x.cpu().numpy()), x.shape)
            print(x[0])
        return x


class _u_bn_relu_conv(nn.Module):
    def __init__(self, in_filters, nb_filters, fw, fh, subsample=1):
        super(_u_bn_relu_conv, self).__init__()
        self.model = nn.Sequential(
            nn.BatchNorm2d(in_filters, eps=1e-3),
            nn.LeakyReLU(0.2),
            nn.Conv2d(in_filters, nb_filters, (fw, fh), stride=subsample, padding=(fw//2, fh//2)),
            nn.Upsample(scale_factor=2, mode='nearest')
        )

    def forward(self, x):
        return self.model(x)



class _shortcut(nn.Module):
    def __init__(self, in_filters, nb_filters, subsample=1):
        super(_shortcut, self).__init__()
        self.process = False
        self.model = None
        if in_filters != nb_filters or subsample != 1:
            self.process = True
            self.model = nn.Sequential(
                    nn.Conv2d(in_filters, nb_filters, (1, 1), stride=subsample)
                )

    def forward(self, x, y):
        #print(x.size(), y.size(), self.process)
        if self.process:
            y0 = self.model(x)
            #print("merge+", torch.max(y0+y), torch.min(y0+y),torch.mean(y0+y), torch.std(y0+y), y0.shape)
            return y0 + y
        else:
            #print("merge", torch.max(x+y), torch.min(x+y),torch.mean(x+y), torch.std(x+y), y.shape)
            return x + y

class _u_shortcut(nn.Module):
    def __init__(self, in_filters, nb_filters, subsample):
        super(_u_shortcut, self).__init__()
        self.process = False
        self.model = None
        if in_filters != nb_filters:
            self.process = True
            self.model = nn.Sequential(
                nn.Conv2d(in_filters, nb_filters, (1, 1), stride=subsample, padding_mode='zeros'),
                nn.Upsample(scale_factor=2, mode='nearest')
            )

    def forward(self, x, y):
        if self.process:
            return self.model(x) + y
        else:
            return x + y


class basic_block(nn.Module):
    def __init__(self, in_filters, nb_filters, init_subsample=1):
        super(basic_block, self).__init__()
        self.conv1 = _bn_relu_conv(in_filters, nb_filters, 3, 3, subsample=init_subsample)
        self.residual = _bn_relu_conv(nb_filters, nb_filters, 3, 3)
        self.shortcut = _shortcut(in_filters, nb_filters, subsample=init_subsample)

    def forward(self, x):
        x1 = self.conv1(x)
        x2 = self.residual(x1)
        return self.shortcut(x, x2)

class _u_basic_block(nn.Module):
    def __init__(self, in_filters, nb_filters, init_subsample=1):
        super(_u_basic_block, self).__init__()
        self.conv1 = _u_bn_relu_conv(in_filters, nb_filters, 3, 3, subsample=init_subsample)
        self.residual = _bn_relu_conv(nb_filters, nb_filters, 3, 3)
        self.shortcut = _u_shortcut(in_filters, nb_filters, subsample=init_subsample)

    def forward(self, x):
        y = self.residual(self.conv1(x))
        return self.shortcut(x, y)


class _residual_block(nn.Module):
    def __init__(self, in_filters, nb_filters, repetitions, is_first_layer=False):
        super(_residual_block, self).__init__()
        layers = []
        for i in range(repetitions):
            init_subsample = 1
            if i == repetitions - 1 and not is_first_layer:
                init_subsample = 2
            if i == 0:
                l = basic_block(in_filters=in_filters, nb_filters=nb_filters, init_subsample=init_subsample)
            else:
                l = basic_block(in_filters=nb_filters, nb_filters=nb_filters, init_subsample=init_subsample)
            layers.append(l)

        self.model = nn.Sequential(*layers)

    def forward(self, x):
        return self.model(x)


class _upsampling_residual_block(nn.Module):
    def __init__(self, in_filters, nb_filters, repetitions):
        super(_upsampling_residual_block, self).__init__()
        layers = []
        for i in range(repetitions):
            l = None
            if i == 0: 
                l = _u_basic_block(in_filters=in_filters, nb_filters=nb_filters)#(input)
            else:
                l = basic_block(in_filters=nb_filters, nb_filters=nb_filters)#(input)
            layers.append(l)

        self.model = nn.Sequential(*layers)

    def forward(self, x):
        return self.model(x)


class res_skip(nn.Module):

    def __init__(self):
        super(res_skip, self).__init__()
        self.block0 = _residual_block(in_filters=1, nb_filters=24, repetitions=2, is_first_layer=True)#(input)
        self.block1 = _residual_block(in_filters=24, nb_filters=48, repetitions=3)#(block0)
        self.block2 = _residual_block(in_filters=48, nb_filters=96, repetitions=5)#(block1)
        self.block3 = _residual_block(in_filters=96, nb_filters=192, repetitions=7)#(block2)
        self.block4 = _residual_block(in_filters=192, nb_filters=384, repetitions=12)#(block3)
        
        self.block5 = _upsampling_residual_block(in_filters=384, nb_filters=192, repetitions=7)#(block4)
        self.res1 = _shortcut(in_filters=192, nb_filters=192)#(block3, block5, subsample=(1,1))

        self.block6 = _upsampling_residual_block(in_filters=192, nb_filters=96, repetitions=5)#(res1)
        self.res2 = _shortcut(in_filters=96, nb_filters=96)#(block2, block6, subsample=(1,1))

        self.block7 = _upsampling_residual_block(in_filters=96, nb_filters=48, repetitions=3)#(res2)
        self.res3 = _shortcut(in_filters=48, nb_filters=48)#(block1, block7, subsample=(1,1))

        self.block8 = _upsampling_residual_block(in_filters=48, nb_filters=24, repetitions=2)#(res3)
        self.res4 = _shortcut(in_filters=24, nb_filters=24)#(block0,block8, subsample=(1,1))

        self.block9 = _residual_block(in_filters=24, nb_filters=16, repetitions=2, is_first_layer=True)#(res4)
        self.conv15 = _bn_relu_conv(in_filters=16, nb_filters=1, fh=1, fw=1, subsample=1)#(block7)

    def forward(self, x):
        x0 = self.block0(x)
        x1 = self.block1(x0)
        x2 = self.block2(x1)
        x3 = self.block3(x2)
        x4 = self.block4(x3)

        x5 = self.block5(x4)
        res1 = self.res1(x3, x5)

        x6 = self.block6(res1)
        res2 = self.res2(x2, x6)

        x7 = self.block7(res2)
        res3 = self.res3(x1, x7)

        x8 = self.block8(res3)
        res4 = self.res4(x0, x8)

        x9 = self.block9(res4)
        y = self.conv15(x9)

        return y

class MyDataset(Dataset):
    def __init__(self, image_paths, transform=None):
        self.image_paths = image_paths
        self.transform = transform
        
    def get_class_label(self, image_name):
        # your method here
        head, tail = os.path.split(image_name)
        #print(tail)
        return tail
        
    def __getitem__(self, index):
        image_path = self.image_paths[index]
        x = Image.open(image_path)
        y = self.get_class_label(image_path.split('/')[-1])
        if self.transform is not None:
            x = self.transform(x)
        return x, y
    
    def __len__(self):
        return len(self.image_paths)

def loadImages(folder):
    imgs = []
    matches = []
    
    # 获取当前目录下的所有文件和文件夹
    for filename in os.listdir(folder):
        # 拼接完整路径
        file_path = os.path.join(folder, filename)
        # 检查是否是文件
        if os.path.isfile(file_path):
            matches.append(file_path)
    
    return matches


def crop_center_square(image):
    """
    将图像中心裁剪为正方形

    :param image: PIL.Image对象
    :return: 裁剪后的PIL.Image对象
    """
    # 获取图像的宽度和高度
    width, height = image.size
    
    # 确定正方形的边长
    side_length = min(width, height)
    
    # 计算裁剪区域的左上角坐标
    left = (width - side_length) // 2
    top = (height - side_length) // 2
    right = left + side_length
    bottom = top + side_length
    
    # 执行裁剪
    cropped_image = image.crop((left, top, right, bottom))
    
    return cropped_image

def crop_image(image, crop_size, stride):
    """
    根据给定的裁剪大小和步长裁剪图像，并返回裁剪后的图像列表。

    :param image: PIL.Image对象
    :param crop_size: 裁剪大小，例如 (384, 384)
    :param stride: 重叠步长，例如 128
    :return: 裁剪后的图像列表
    """
    width, height = image.size
    crop_width, crop_height = crop_size
    cropped_images = []

    for j in range(0, height - crop_height + 1, stride):
        for i in range(0, width - crop_width + 1, stride):
            crop_box = (i, j, i + crop_width, j + crop_height)
            cropped_image = image.crop(crop_box)
            cropped_images.append(cropped_image)

    return cropped_images

def process_image_ref(image):
    """
    处理输入的PIL图像，返回包含所有裁剪后图像的列表。

    :param image: PIL.Image对象
    :return: 包含所有裁剪后图像的列表
    """
    # 调整图像到512*512
    resized_image_512 = image.resize((512, 512))

    # 创建一个列表，并将512*512的图像作为第一个元素
    image_list = [resized_image_512]

    # 按照384*384的大小，有重叠的2*2的crop图像
    crop_size_384 = (384, 384)
    stride_384 = 128
    image_list.extend(crop_image(resized_image_512, crop_size_384, stride_384))

    # 按照256*256的大小，有重叠的2*2的crop图像
    # crop_size_256 = (256, 256)
    # stride_256 = 256
    # image_list.extend(crop_image(resized_image_512, crop_size_256, stride_256))

    return image_list


def process_image_Q(image):
    """
    处理输入的PIL图像，返回包含所有裁剪后图像的列表。

    :param image: PIL.Image对象
    :return: 包含所有裁剪后图像的列表
    """
    # 调整图像到512*512
    resized_image_512 = image.resize((512, 512)).convert("RGB").convert("RGB")

    # 创建一个列表，并将512*512的图像作为第一个元素
    image_list = []

    # 按照384*384的大小，有重叠的2*2的crop图像
    crop_size_384 = (384, 384)
    stride_384 = 128
    image_list.extend(crop_image(resized_image_512, crop_size_384, stride_384))

    return image_list

def process_image(image, target_width=512, target_height = 512):
    # 获取输入图像的宽高
    img_width, img_height = image.size
    img_ratio = img_width / img_height
    
    # 计算目标宽高比
    # target_width, target_height = target_ratio
    target_ratio = target_width / target_height
    
    # 计算宽高比误差
    ratio_error = abs(img_ratio - target_ratio) / target_ratio
    
    if ratio_error < 0.15:
        # 如果误差小于15%，直接resize到目标宽高比
        resized_image = image.resize((target_width, target_height), Image.BICUBIC)
    else:
        # 否则，随机裁剪到目标宽高比PIL.Image.BICUBIC
        if img_ratio > target_ratio:
            # 图像太宽，裁剪宽度
            new_width = int(img_height * target_ratio)
            # left = random.randint(0, img_width - new_width)
            left = int((0 + img_width - new_width)/2)
            top = 0
            right = left + new_width
            bottom = img_height
        else:
            # 图像太高，裁剪高度
            new_height = int(img_width / target_ratio)
            left = 0
            # top = random.randint(0, img_height - new_height)
            top = int((0 + img_height - new_height)/2)
            right = img_width
            bottom = top + new_height
        
        cropped_image = image.crop((left, top, right, bottom))
        resized_image = cropped_image.resize((target_width, target_height), Image.BICUBIC)
    
    return resized_image.convert('RGB')

def crop_image_varres(image, crop_size, h_stride, w_stride):
        """
        根据给定的裁剪大小和步长裁剪图像，并返回裁剪后的图像列表。

        :param image: PIL.Image对象
        :param crop_size: 裁剪大小，例如 (384, 384)
        :param stride: 重叠步长，例如 128
        :return: 裁剪后的图像列表
        """
        width, height = image.size
        crop_width, crop_height = crop_size
        cropped_images = []

        for j in range(0, height - crop_height + 1, h_stride):
            for i in range(0, width - crop_width + 1, w_stride):
                crop_box = (i, j, i + crop_width, j + crop_height)
                cropped_image = image.crop(crop_box)
                cropped_images.append(cropped_image)

        return cropped_images

def process_image_ref_varres(image, target_width=512, target_height = 512):
    """
    处理输入的PIL图像，返回包含所有裁剪后图像的列表。

    :param image: PIL.Image对象
    :return: 包含所有裁剪后图像的列表
    """
    # 调整图像到512*512
    resized_image_512 = image.resize((target_width, target_height))

    # 创建一个列表，并将512*512的图像作为第一个元素
    image_list = [resized_image_512]

    # 按照384*384的大小，有重叠的2*2的crop图像
    crop_size_384 = (target_width//4*3, target_height//4*3)
    w_stride_384 = target_width//4
    h_stride_384 = target_height//4
    image_list.extend(crop_image_varres(resized_image_512, crop_size_384, h_stride = h_stride_384, w_stride = w_stride_384))

    # 按照256*256的大小，有重叠的2*2的crop图像
    # crop_size_256 = (256, 256)
    # stride_256 = 256
    # image_list.extend(self.crop_image(resized_image_512, crop_size_256, stride_256))

    return image_list


def process_image_Q_varres(image, target_width=512, target_height = 512):
    """
    处理输入的PIL图像，返回包含所有裁剪后图像的列表。

    :param image: PIL.Image对象
    :return: 包含所有裁剪后图像的列表
    """
    # 调整图像到512*512
    resized_image_512 = image.resize((target_width, target_height)).convert("RGB").convert("RGB")

    # 创建一个列表，并将512*512的图像作为第一个元素
    image_list = []

    # 按照384*384的大小，有重叠的2*2的crop图像
    crop_size_384 = (target_width//4*3, target_height//4*3)
    w_stride_384 = target_width//4
    h_stride_384 = target_height//4
    image_list.extend(crop_image_varres(resized_image_512, crop_size_384, h_stride = h_stride_384, w_stride = w_stride_384))


    return image_list



import torch
import torch.nn as nn
import torch.nn.functional as F

# 定义一个简单的 ResNet 块
class ResNetBlock(nn.Module):
    def __init__(self, in_channels, out_channels, stride=1):
        super(ResNetBlock, self).__init__()
        self.conv1 = nn.Conv2d(in_channels, out_channels, kernel_size=3, stride=stride, padding=1, bias=False)
        self.bn1 = nn.BatchNorm2d(out_channels)
        self.conv2 = nn.Conv2d(out_channels, out_channels, kernel_size=3, stride=1, padding=1, bias=False)
        self.bn2 = nn.BatchNorm2d(out_channels)

        self.shortcut = nn.Sequential()
        if stride != 1 or in_channels != out_channels:
            self.shortcut = nn.Sequential(
                nn.Conv2d(in_channels, out_channels, kernel_size=1, stride=stride, bias=False),
                nn.BatchNorm2d(out_channels)
            )

    def forward(self, x):
        out = F.relu(self.bn1(self.conv1(x)))
        out = self.bn2(self.conv2(out))
        out += self.shortcut(x)  # 直接相加
        out = F.relu(out)
        return out

# 定义两层 ResNet 块模型
class TwoLayerResNet(nn.Module):
    def __init__(self, in_channels, out_channels):
        super(TwoLayerResNet, self).__init__()
        self.block1 = ResNetBlock(in_channels, out_channels)
        self.block2 = ResNetBlock(out_channels, out_channels)
        self.block3 = ResNetBlock(out_channels, out_channels)
        self.block4 = ResNetBlock(out_channels, out_channels)

    def forward(self, x):
        x = self.block1(x)
        x = self.block2(x)
        x = self.block3(x)
        x = self.block4(x)
        return x
    

class MultiHiddenResNetModel(nn.Module):
    def __init__(self, channels_list, num_tensors):
        super(MultiHiddenResNetModel, self).__init__()
        self.two_layer_resnets = nn.ModuleList([TwoLayerResNet(channels_list[idx]*2, channels_list[min(len(channels_list)-1,idx+2)]) for idx in range(num_tensors)])

    def forward(self, tensor_list):
        processed_list = []
        for i, tensor in enumerate(tensor_list):
            # 应用对应的两层 ResNet 块模型
            tensor = self.two_layer_resnets[i](tensor)
            processed_list.append(tensor)
        
        return processed_list
    

def calculate_target_size(h, w):
    # 计算目标高度和宽度，使得它们尽量保持原始比例，并且是 8 的倍数
    if random.random()>0.5:
        target_h = (h // 8) * 8
        target_w = (w // 8) * 8
    elif random.random()>0.5:
        target_h = (h // 8) * 8
        target_w = (w // 8) * 8
    else:
        target_h = (h // 8) * 8
        target_w = (w // 8) * 8
    
    # 如果目标高度或宽度为 0，则调整为 8
    if target_h == 0:
        target_h = 8
    if target_w == 0:
        target_w = 8
    
    return target_h, target_w


def downsample_tensor(tensor):
    # 获取 tensor 的高度和宽度
    b, c, h, w = tensor.shape
    
    # 计算目标高度和宽度
    target_h, target_w = calculate_target_size(h, w)
    
    # 使用插值方法将分辨率降为指定的目标高度和宽度
    downsampled_tensor = F.interpolate(tensor, size=(target_h, target_w), mode='bilinear', align_corners=False)
    
    return downsampled_tensor



def get_pixart_config():
    pixart_config = {
            "_class_name": "Transformer2DModel",
            "_diffusers_version": "0.22.0.dev0",
            "activation_fn": "gelu-approximate",
            "attention_bias": True,
            "attention_head_dim": 72,
            "attention_type": "default",
            "caption_channels": 4096,
            "cross_attention_dim": 1152,
            "double_self_attention": False,
            "dropout": 0.0,
            "in_channels": 4,
            # "interpolation_scale": 2,
            "norm_elementwise_affine": False,
            "norm_eps": 1e-06,
            "norm_num_groups": 32,
            "norm_type": "ada_norm_single",
            "num_attention_heads": 16,
            "num_embeds_ada_norm": 1000,
            "num_layers": 28,
            "num_vector_embeds": None,
            "only_cross_attention": False,
            "out_channels": 8,
            "patch_size": 2,
            "sample_size": 128,
            "upcast_attention": False,
            # "use_additional_conditions": False,
            "use_linear_projection": False
            }
    return pixart_config



class DoubleConv(nn.Module):
    def __init__(self, in_channels, out_channels):
        super().__init__()
        self.double_conv = nn.Sequential(
            nn.Conv2d(in_channels, out_channels, 3, 1, 1),
            nn.BatchNorm2d(out_channels),
            nn.ReLU(),
            nn.Conv2d(out_channels, out_channels, 3, 1, 1),
            nn.BatchNorm2d(out_channels),
            nn.ReLU()
        )

    def forward(self, x):
        return self.double_conv(x)


class UNet(nn.Module):
    def __init__(self):
        super().__init__()
        # left
        self.left_conv_1 = DoubleConv(6, 64)
        self.down_1 = nn.MaxPool2d(2, 2)

        self.left_conv_2 = DoubleConv(64, 128)
        self.down_2 = nn.MaxPool2d(2, 2)

        self.left_conv_3 = DoubleConv(128, 256)
        self.down_3 = nn.MaxPool2d(2, 2)

        self.left_conv_4 = DoubleConv(256, 512)
        self.down_4 = nn.MaxPool2d(2, 2)

        # center
        self.center_conv = DoubleConv(512, 1024)

        # right
        self.up_1 = nn.ConvTranspose2d(1024, 512, 2, 2)
        self.right_conv_1 = DoubleConv(1024, 512)

        self.up_2 = nn.ConvTranspose2d(512, 256, 2, 2)
        self.right_conv_2 = DoubleConv(512, 256)

        self.up_3 = nn.ConvTranspose2d(256, 128, 2, 2)
        self.right_conv_3 = DoubleConv(256, 128)

        self.up_4 = nn.ConvTranspose2d(128, 64, 2, 2)
        self.right_conv_4 = DoubleConv(128, 64)

        # output
        self.output = nn.Conv2d(64, 3, 1, 1, 0)

    def forward(self, x):
        # left
        x1 = self.left_conv_1(x)
        x1_down = self.down_1(x1)

        x2 = self.left_conv_2(x1_down)
        x2_down = self.down_2(x2)

        x3 = self.left_conv_3(x2_down)
        x3_down = self.down_3(x3)

        x4 = self.left_conv_4(x3_down)
        x4_down = self.down_4(x4)

        # center
        x5 = self.center_conv(x4_down)

        # right
        x6_up = self.up_1(x5)
        temp = torch.cat((x6_up, x4), dim=1)
        x6 = self.right_conv_1(temp)

        x7_up = self.up_2(x6)
        temp = torch.cat((x7_up, x3), dim=1)
        x7 = self.right_conv_2(temp)

        x8_up = self.up_3(x7)
        temp = torch.cat((x8_up, x2), dim=1)
        x8 = self.right_conv_3(temp)

        x9_up = self.up_4(x8)
        temp = torch.cat((x9_up, x1), dim=1)
        x9 = self.right_conv_4(temp)

        # output
        output = self.output(x9)

        return output


#
import sys
sys.path.append('./BidirectionalTranslation')
from data.base_dataset import BaseDataset, get_params, get_transform
from data.image_folder import make_dataset

def get_ScreenVAE_input(A_img, opt):
    # 加载图像
    # A_img = Image.open(image_path).convert('RGB')
    
    # 加载线条图像（如果存在）
    # if os.path.exists(image_path.replace('imgs','line')[:-4]+'.jpg'):
    #     L_img = cv2.imread(image_path.replace('imgs','line')[:-4]+'.jpg')
    #     kernel = np.ones((3,3), np.uint8)
    #     L_img = cv2.erode(L_img, kernel, iterations=1)
    #     L_img = Image.fromarray(L_img)
    # else:
    L_img = A_img
    
    # 调整图像尺寸
    if A_img.size != L_img.size:
        A_img = A_img.resize(L_img.size, Image.ANTIALIAS)
    if A_img.size[1] > 2500:
        A_img = A_img.resize((A_img.size[0]//2, A_img.size[1]//2), Image.ANTIALIAS)
    
    # 获取变换参数
    ow, oh = A_img.size
    transform_params = get_params(opt, A_img.size)
    
    # 应用变换
    A_transform = get_transform(opt, transform_params, grayscale=False)
    L_transform = get_transform(opt, transform_params, grayscale=True)
    A = A_transform(A_img)
    L = L_transform(L_img)
    
    # 生成灰度图像
    tmp = A[0, ...] * 0.299 + A[1, ...] * 0.587 + A[2, ...] * 0.114
    Ai = tmp.unsqueeze(0)
    
    return {'A': A.unsqueeze(0), 'Ai': Ai.unsqueeze(0), 'L': L.unsqueeze(0), 'A_paths': '', 'h': oh, 'w': ow, 'B': torch.zeros(1),
                'Bs': torch.zeros(1),
                'Bi': torch.zeros(1),
                'Bl': torch.zeros(1),}


def get_bidirectional_translation_opt(opt):
    opt.results_dir = './results/test/western2manga'
    opt.dataroot = './datasets/color2manga'
    opt.checkpoints_dir = '/group/40034/zhuangjunhao/ScreenStyle/BidirectionalTranslation/checkpoints/color2manga/'
    opt.name = 'color2manga_cycle_ganstft'
    opt.model = 'cycle_ganstft'
    opt.direction = 'BtoA'
    opt.preprocess = 'none' 
    opt.load_size = 512
    opt.crop_size = 1024
    opt.input_nc = 1
    opt.output_nc = 3
    opt.nz = 64
    opt.netE = 'conv_256'
    opt.num_test = 30
    opt.n_samples = 1
    opt.upsample = 'bilinear'
    opt.ngf = 48
    opt.nef = 48
    opt.ndf = 32
    opt.center_crop = True
    opt.color2screen = True
    opt.no_flip = True

    # Set other options
    opt.num_threads = 1
    opt.batch_size = 1
    opt.serial_batches = True
    return opt