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import requests | |
import os | |
from PIL import Image, ImageOps | |
import cv2 | |
import numpy as np | |
import socket | |
import torchvision.transforms.functional as TF | |
def load_img(path : str, shape=None, use_alpha_as_mask=False): | |
# use_alpha_as_mask: Read the alpha channel of the image as the mask image | |
image = load_image(path) | |
if use_alpha_as_mask: | |
image = image.convert('RGBA') | |
else: | |
image = image.convert('RGB') | |
if shape is not None: | |
image = image.resize(shape, resample=Image.LANCZOS) | |
mask_image = None | |
if use_alpha_as_mask: | |
# Split alpha channel into a mask_image | |
red, green, blue, alpha = Image.Image.split(image) | |
mask_image = alpha.convert('L') | |
image = image.convert('RGB') | |
# check using init image alpha as mask if mask is not blank | |
extrema = mask_image.getextrema() | |
if (extrema == (0,0)) or extrema == (255,255): | |
print("use_alpha_as_mask==True: Using the alpha channel from the init image as a mask, but the alpha channel is blank.") | |
print("ignoring alpha as mask.") | |
mask_image = None | |
return image, mask_image | |
def load_image(image_path :str): | |
image = None | |
if image_path.startswith('http://') or image_path.startswith('https://'): | |
try: | |
host = socket.gethostbyname("www.google.com") | |
s = socket.create_connection((host, 80), 2) | |
s.close() | |
except: | |
raise ConnectionError("There is no active internet connection available - please use local masks and init files only.") | |
try: | |
response = requests.get(image_path, stream=True) | |
except requests.exceptions.RequestException as e: | |
raise ConnectionError("Failed to download image due to no internet connection. Error: {}".format(e)) | |
if response.status_code == 404 or response.status_code != 200: | |
raise ConnectionError("Init image url or mask image url is not valid") | |
image = Image.open(response.raw).convert('RGB') | |
else: | |
if not os.path.exists(image_path): | |
raise RuntimeError("Init image path or mask image path is not valid") | |
image = Image.open(image_path).convert('RGB') | |
return image | |
def prepare_mask(mask_input, mask_shape, mask_brightness_adjust=1.0, mask_contrast_adjust=1.0): | |
""" | |
prepares mask for use in webui | |
""" | |
if isinstance(mask_input, Image.Image): | |
mask = mask_input | |
else : | |
mask = load_image(mask_input) | |
mask = mask.resize(mask_shape, resample=Image.LANCZOS) | |
if mask_brightness_adjust != 1: | |
mask = TF.adjust_brightness(mask, mask_brightness_adjust) | |
if mask_contrast_adjust != 1: | |
mask = TF.adjust_contrast(mask, mask_contrast_adjust) | |
mask = mask.convert('L') | |
return mask | |
def check_mask_for_errors(mask_input, invert_mask=False): | |
extrema = mask_input.getextrema() | |
if (invert_mask): | |
if extrema == (255,255): | |
print("after inverting mask will be blank. ignoring mask") | |
return None | |
elif extrema == (0,0): | |
print("mask is blank. ignoring mask") | |
return None | |
else: | |
return mask_input | |
def get_mask(args): | |
return check_mask_for_errors( | |
prepare_mask(args.mask_file, (args.W, args.H), args.mask_contrast_adjust, args.mask_brightness_adjust) | |
) | |
def get_mask_from_file(mask_file, args): | |
return check_mask_for_errors( | |
prepare_mask(mask_file, (args.W, args.H), args.mask_contrast_adjust, args.mask_brightness_adjust) | |
) | |
def blank_if_none(mask, w, h, mode): | |
return Image.new(mode, (w, h), (0)) if mask is None else mask | |
def none_if_blank(mask): | |
return None if mask.getextrema() == (0,0) else mask | |