138 lines
4.5 KiB
Python
138 lines
4.5 KiB
Python
import numpy as np
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import datetime
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import random
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import os
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from PIL import Image
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def image_is_generated_in_current_ui(image, ui_width, ui_height):
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H, W, C = image.shape
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if H < ui_height:
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return False
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if W < ui_width:
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return False
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# k1 = float(H) / float(W)
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# k2 = float(ui_height) / float(ui_width)
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# d = abs(k1 - k2)
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#
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# if d > 0.01:
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# return False
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return True
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LANCZOS = (Image.Resampling.LANCZOS if hasattr(Image, 'Resampling') else Image.LANCZOS)
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def resample_image(im, width, height):
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im = Image.fromarray(im)
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im = im.resize((width, height), resample=LANCZOS)
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return np.array(im)
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def resize_image(im, width, height, resize_mode=1):
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"""
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Resizes an image with the specified resize_mode, width, and height.
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Args:
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resize_mode: The mode to use when resizing the image.
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0: Resize the image to the specified width and height.
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1: Resize the image to fill the specified width and height, maintaining the aspect ratio, and then center the image within the dimensions, cropping the excess.
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2: Resize the image to fit within the specified width and height, maintaining the aspect ratio, and then center the image within the dimensions, filling empty with data from image.
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im: The image to resize.
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width: The width to resize the image to.
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height: The height to resize the image to.
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"""
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im = Image.fromarray(im)
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def resize(im, w, h):
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return im.resize((w, h), resample=LANCZOS)
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if resize_mode == 0:
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res = resize(im, width, height)
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elif resize_mode == 1:
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ratio = width / height
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src_ratio = im.width / im.height
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src_w = width if ratio > src_ratio else im.width * height // im.height
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src_h = height if ratio <= src_ratio else im.height * width // im.width
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resized = resize(im, src_w, src_h)
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res = Image.new("RGB", (width, height))
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res.paste(resized, box=(width // 2 - src_w // 2, height // 2 - src_h // 2))
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else:
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ratio = width / height
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src_ratio = im.width / im.height
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src_w = width if ratio < src_ratio else im.width * height // im.height
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src_h = height if ratio >= src_ratio else im.height * width // im.width
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resized = resize(im, src_w, src_h)
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res = Image.new("RGB", (width, height))
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res.paste(resized, box=(width // 2 - src_w // 2, height // 2 - src_h // 2))
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if ratio < src_ratio:
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fill_height = height // 2 - src_h // 2
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if fill_height > 0:
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res.paste(resized.resize((width, fill_height), box=(0, 0, width, 0)), box=(0, 0))
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res.paste(resized.resize((width, fill_height), box=(0, resized.height, width, resized.height)), box=(0, fill_height + src_h))
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elif ratio > src_ratio:
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fill_width = width // 2 - src_w // 2
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if fill_width > 0:
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res.paste(resized.resize((fill_width, height), box=(0, 0, 0, height)), box=(0, 0))
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res.paste(resized.resize((fill_width, height), box=(resized.width, 0, resized.width, height)), box=(fill_width + src_w, 0))
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return np.array(res)
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def HWC3(x):
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assert x.dtype == np.uint8
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if x.ndim == 2:
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x = x[:, :, None]
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assert x.ndim == 3
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H, W, C = x.shape
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assert C == 1 or C == 3 or C == 4
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if C == 3:
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return x
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if C == 1:
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return np.concatenate([x, x, x], axis=2)
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if C == 4:
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color = x[:, :, 0:3].astype(np.float32)
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alpha = x[:, :, 3:4].astype(np.float32) / 255.0
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y = color * alpha + 255.0 * (1.0 - alpha)
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y = y.clip(0, 255).astype(np.uint8)
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return y
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def remove_empty_str(items, default=None):
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items = [x for x in items if x != ""]
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if len(items) == 0 and default is not None:
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return [default]
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return items
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def join_prompts(*args, **kwargs):
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prompts = [str(x) for x in args if str(x) != ""]
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if len(prompts) == 0:
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return ""
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if len(prompts) == 1:
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return prompts[0]
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return ', '.join(prompts)
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def generate_temp_filename(folder='./outputs/', extension='png'):
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current_time = datetime.datetime.now()
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date_string = current_time.strftime("%Y-%m-%d")
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time_string = current_time.strftime("%Y-%m-%d_%H-%M-%S")
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random_number = random.randint(1000, 9999)
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filename = f"{time_string}_{random_number}.{extension}"
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result = os.path.join(folder, date_string, filename)
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return date_string, os.path.abspath(os.path.realpath(result)), filename
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