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import fastai
from fastai.vision import *
from fastai.utils.mem import *
from fastai.vision import open_image, load_learner, image, torch
import numpy as np
import urllib.request
import PIL.Image
from io import BytesIO
import torchvision.transforms as T
from PIL import Image
import requests
from io import BytesIO
import fastai
from fastai.vision import *
from fastai.utils.mem import *
from fastai.vision import open_image, load_learner, image, torch
import numpy as np
import urllib.request
import PIL.Image
from PIL import Image
from io import BytesIO
import torchvision.transforms as T
class FeatureLoss(nn.Module):
def __init__(self, m_feat, layer_ids, layer_wgts):
super().__init__()
self.m_feat = m_feat
self.loss_features = [self.m_feat[i] for i in layer_ids]
self.hooks = hook_outputs(self.loss_features, detach=False)
self.wgts = layer_wgts
self.metric_names = ['pixel',] + [f'feat_{i}' for i in range(len(layer_ids))
] + [f'gram_{i}' for i in range(len(layer_ids))]
def make_features(self, x, clone=False):
self.m_feat(x)
return [(o.clone() if clone else o) for o in self.hooks.stored]
def forward(self, input, target):
out_feat = self.make_features(target, clone=True)
in_feat = self.make_features(input)
self.feat_losses = [base_loss(input,target)]
self.feat_losses += [base_loss(f_in, f_out)*w
for f_in, f_out, w in zip(in_feat, out_feat, self.wgts)]
self.feat_losses += [base_loss(gram_matrix(f_in), gram_matrix(f_out))*w**2 * 5e3
for f_in, f_out, w in zip(in_feat, out_feat, self.wgts)]
self.metrics = dict(zip(self.metric_names, self.feat_losses))
return sum(self.feat_losses)
def __del__(self): self.hooks.remove()
def add_margin(pil_img, top, right, bottom, left, color):
width, height = pil_img.size
new_width = width + right + left
new_height = height + top + bottom
result = Image.new(pil_img.mode, (new_width, new_height), color)
result.paste(pil_img, (left, top))
return result
MODEL_URL = "https://www.dropbox.com/s/04suaimdpru76h3/ArtLine_920.pkl?dl=1 "
urllib.request.urlretrieve(MODEL_URL, "ArtLine_920.pkl")
path = Path(".")
print(os.listdir('.'))
learn=load_learner(path, 'ArtLine_920.pkl')
import gradio as gr
import cv2
def get_filename(prefix="sketch"):
from datetime import datetime
from pytz import timezone
return datetime.now(timezone('Asia/Seoul')).strftime('sketch__%Y-%m-%d %H:%M:%S.jpg')
def predict(img):
img = PIL.Image.fromarray(img)
img = add_margin(img, 250, 250, 250, 250, (255, 255, 255))
img = np.array(img)
h, w = img.shape[:-1]
cv2.imwrite("test.jpg", img)
img_test = open_image("test.jpg")
p,img_hr,b = learn.predict(img_test)
res = (img_hr / img_hr.max()).numpy()
res = res[0] # take only first channel as result
res = cv2.resize(res, (w,h))
output_file = get_filename()
cv2.imwrite(output_file, (res * 255).astype(np.uint8), [cv2.IMWRITE_JPEG_QUALITY, 50])
return res, output_file
gr.Interface(predict,
inputs="image",
outputs=[gr.Image(label="Sketch Image"), gr.File(label="Result File")],
title="Image-to-sketch",
description="Transfer any image into BW cartoon-style sketch!").launch(share=True)
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