mirror of
https://github.com/AUTOMATIC1111/stable-diffusion-webui.git
synced 2024-12-21 07:30:02 +08:00
332 lines
12 KiB
Python
332 lines
12 KiB
Python
import math
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import os
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from collections import namedtuple
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import re
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import numpy as np
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from PIL import Image, ImageFont, ImageDraw, PngImagePlugin
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from fonts.ttf import Roboto
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import string
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import modules.shared
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from modules.shared import opts
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LANCZOS = (Image.Resampling.LANCZOS if hasattr(Image, 'Resampling') else Image.LANCZOS)
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def image_grid(imgs, batch_size=1, rows=None):
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if rows is None:
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if opts.n_rows > 0:
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rows = opts.n_rows
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elif opts.n_rows == 0:
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rows = batch_size
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else:
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rows = math.sqrt(len(imgs))
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rows = round(rows)
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cols = math.ceil(len(imgs) / rows)
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w, h = imgs[0].size
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grid = Image.new('RGB', size=(cols * w, rows * h), color='black')
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for i, img in enumerate(imgs):
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grid.paste(img, box=(i % cols * w, i // cols * h))
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return grid
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Grid = namedtuple("Grid", ["tiles", "tile_w", "tile_h", "image_w", "image_h", "overlap"])
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def split_grid(image, tile_w=512, tile_h=512, overlap=64):
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w = image.width
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h = image.height
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non_overlap_width = tile_w - overlap
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non_overlap_height = tile_h - overlap
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cols = math.ceil((w - overlap) / non_overlap_width)
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rows = math.ceil((h - overlap) / non_overlap_height)
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dx = (w - tile_w) / (cols-1) if cols > 1 else 0
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dy = (h - tile_h) / (rows-1) if rows > 1 else 0
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grid = Grid([], tile_w, tile_h, w, h, overlap)
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for row in range(rows):
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row_images = []
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y = int(row * dy)
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if y + tile_h >= h:
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y = h - tile_h
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for col in range(cols):
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x = int(col * dx)
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if x+tile_w >= w:
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x = w - tile_w
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tile = image.crop((x, y, x + tile_w, y + tile_h))
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row_images.append([x, tile_w, tile])
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grid.tiles.append([y, tile_h, row_images])
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return grid
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def combine_grid(grid):
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def make_mask_image(r):
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r = r * 255 / grid.overlap
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r = r.astype(np.uint8)
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return Image.fromarray(r, 'L')
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mask_w = make_mask_image(np.arange(grid.overlap, dtype=np.float32).reshape((1, grid.overlap)).repeat(grid.tile_h, axis=0))
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mask_h = make_mask_image(np.arange(grid.overlap, dtype=np.float32).reshape((grid.overlap, 1)).repeat(grid.image_w, axis=1))
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combined_image = Image.new("RGB", (grid.image_w, grid.image_h))
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for y, h, row in grid.tiles:
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combined_row = Image.new("RGB", (grid.image_w, h))
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for x, w, tile in row:
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if x == 0:
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combined_row.paste(tile, (0, 0))
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continue
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combined_row.paste(tile.crop((0, 0, grid.overlap, h)), (x, 0), mask=mask_w)
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combined_row.paste(tile.crop((grid.overlap, 0, w, h)), (x + grid.overlap, 0))
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if y == 0:
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combined_image.paste(combined_row, (0, 0))
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continue
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combined_image.paste(combined_row.crop((0, 0, combined_row.width, grid.overlap)), (0, y), mask=mask_h)
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combined_image.paste(combined_row.crop((0, grid.overlap, combined_row.width, h)), (0, y + grid.overlap))
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return combined_image
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class GridAnnotation:
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def __init__(self, text='', is_active=True):
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self.text = text
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self.is_active = is_active
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self.size = None
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def draw_grid_annotations(im, width, height, hor_texts, ver_texts):
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def wrap(drawing, text, font, line_length):
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lines = ['']
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for word in text.split():
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line = f'{lines[-1]} {word}'.strip()
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if drawing.textlength(line, font=font) <= line_length:
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lines[-1] = line
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else:
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lines.append(word)
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return lines
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def draw_texts(drawing, draw_x, draw_y, lines):
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for i, line in enumerate(lines):
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drawing.multiline_text((draw_x, draw_y + line.size[1] / 2), line.text, font=fnt, fill=color_active if line.is_active else color_inactive, anchor="mm", align="center")
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if not line.is_active:
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drawing.line((draw_x - line.size[0]//2, draw_y + line.size[1]//2, draw_x + line.size[0]//2, draw_y + line.size[1]//2), fill=color_inactive, width=4)
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draw_y += line.size[1] + line_spacing
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fontsize = (width + height) // 25
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line_spacing = fontsize // 2
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fnt = ImageFont.truetype(opts.font or Roboto, fontsize)
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color_active = (0, 0, 0)
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color_inactive = (153, 153, 153)
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pad_left = 0 if sum([sum([len(line.text) for line in lines]) for lines in ver_texts]) == 0 else width * 3 // 4
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cols = im.width // width
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rows = im.height // height
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assert cols == len(hor_texts), f'bad number of horizontal texts: {len(hor_texts)}; must be {cols}'
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assert rows == len(ver_texts), f'bad number of vertical texts: {len(ver_texts)}; must be {rows}'
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calc_img = Image.new("RGB", (1, 1), "white")
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calc_d = ImageDraw.Draw(calc_img)
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for texts, allowed_width in zip(hor_texts + ver_texts, [width] * len(hor_texts) + [pad_left] * len(ver_texts)):
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items = [] + texts
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texts.clear()
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for line in items:
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wrapped = wrap(calc_d, line.text, fnt, allowed_width)
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texts += [GridAnnotation(x, line.is_active) for x in wrapped]
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for line in texts:
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bbox = calc_d.multiline_textbbox((0, 0), line.text, font=fnt)
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line.size = (bbox[2] - bbox[0], bbox[3] - bbox[1])
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hor_text_heights = [sum([line.size[1] + line_spacing for line in lines]) - line_spacing for lines in hor_texts]
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ver_text_heights = [sum([line.size[1] + line_spacing for line in lines]) - line_spacing * len(lines) for lines in ver_texts]
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pad_top = max(hor_text_heights) + line_spacing * 2
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result = Image.new("RGB", (im.width + pad_left, im.height + pad_top), "white")
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result.paste(im, (pad_left, pad_top))
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d = ImageDraw.Draw(result)
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for col in range(cols):
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x = pad_left + width * col + width / 2
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y = pad_top / 2 - hor_text_heights[col] / 2
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draw_texts(d, x, y, hor_texts[col])
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for row in range(rows):
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x = pad_left / 2
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y = pad_top + height * row + height / 2 - ver_text_heights[row] / 2
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draw_texts(d, x, y, ver_texts[row])
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return result
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def draw_prompt_matrix(im, width, height, all_prompts):
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prompts = all_prompts[1:]
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boundary = math.ceil(len(prompts) / 2)
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prompts_horiz = prompts[:boundary]
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prompts_vert = prompts[boundary:]
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hor_texts = [[GridAnnotation(x, is_active=pos & (1 << i) != 0) for i, x in enumerate(prompts_horiz)] for pos in range(1 << len(prompts_horiz))]
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ver_texts = [[GridAnnotation(x, is_active=pos & (1 << i) != 0) for i, x in enumerate(prompts_vert)] for pos in range(1 << len(prompts_vert))]
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return draw_grid_annotations(im, width, height, hor_texts, ver_texts)
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def resize_image(resize_mode, im, width, height):
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if resize_mode == 0:
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res = im.resize((width, height), resample=LANCZOS)
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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 = im.resize((src_w, src_h), resample=LANCZOS)
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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 = im.resize((src_w, src_h), resample=LANCZOS)
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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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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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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 res
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invalid_filename_chars = '<>:"/\\|?*\n'
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re_nonletters = re.compile(r'[\s'+string.punctuation+']+')
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def sanitize_filename_part(text):
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return text.replace(' ', '_').translate({ord(x): '' for x in invalid_filename_chars})[:128]
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def save_image(image, path, basename, seed=None, prompt=None, extension='png', info=None, short_filename=False, no_prompt=False):
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# would be better to add this as an argument in future, but will do for now
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is_a_grid = basename != ""
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if short_filename or prompt is None or seed is None:
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file_decoration = ""
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elif opts.save_to_dirs:
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file_decoration = f"-{seed}"
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else:
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file_decoration = f"-{seed}-{sanitize_filename_part(prompt)[:128]}"
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if extension == 'png' and opts.enable_pnginfo and info is not None:
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pnginfo = PngImagePlugin.PngInfo()
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pnginfo.add_text("parameters", info)
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else:
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pnginfo = None
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save_to_dirs = (is_a_grid and opts.grid_save_to_dirs) or (not is_a_grid and opts.save_to_dirs)
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if save_to_dirs and not no_prompt:
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words = [x for x in re_nonletters.split(prompt or "") if len(x)>0]
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if len(words[0]) == 0:
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words = ["empty"]
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dirname = " ".join(words[0:opts.save_to_dirs_prompt_len]).strip()
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path = os.path.join(path, dirname)
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os.makedirs(path, exist_ok=True)
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filecount = len([x for x in os.listdir(path) if os.path.splitext(x)[1] == '.' + extension])
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fullfn = "a.png"
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fullfn_without_extension = "a"
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for i in range(500):
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fn = f"{filecount+i:05}" if basename == '' else f"{basename}-{filecount+i:04}"
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fullfn = os.path.join(path, f"{fn}{file_decoration}.{extension}")
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fullfn_without_extension = os.path.join(path, f"{fn}{file_decoration}")
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if not os.path.exists(fullfn):
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break
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image.save(fullfn, quality=opts.jpeg_quality, pnginfo=pnginfo)
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target_side_length = 4000
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oversize = image.width > target_side_length or image.height > target_side_length
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if opts.export_for_4chan and (oversize or os.stat(fullfn).st_size > 4 * 1024 * 1024):
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ratio = image.width / image.height
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if oversize and ratio > 1:
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image = image.resize((target_side_length, image.height * target_side_length // image.width), LANCZOS)
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elif oversize:
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image = image.resize((image.width * target_side_length // image.height, target_side_length), LANCZOS)
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image.save(f"{fullfn_without_extension}.jpg", quality=opts.jpeg_quality, pnginfo=pnginfo)
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if opts.save_txt and info is not None:
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with open(f"{fullfn_without_extension}.txt", "w", encoding="utf8") as file:
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file.write(info + "\n")
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class Upscaler:
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name = "Lanczos"
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def do_upscale(self, img):
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return img
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def upscale(self, img, w, h):
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for i in range(3):
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if img.width >= w and img.height >= h:
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break
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img = self.do_upscale(img)
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if img.width != w or img.height != h:
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img = img.resize((w, h), resample=LANCZOS)
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return img
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class UpscalerNone(Upscaler):
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name = "None"
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def upscale(self, img, w, h):
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return img
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modules.shared.sd_upscalers.append(UpscalerNone())
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modules.shared.sd_upscalers.append(Upscaler())
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