Inici del render
This commit is contained in:
Guillem Hernandez Sola
381
manga-renderer.py
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381
manga-renderer.py
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import re
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import json
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import cv2
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import numpy as np
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from PIL import Image, ImageDraw, ImageFont
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import os
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# ─────────────────────────────────────────────
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# CONFIG
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# ─────────────────────────────────────────────
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INPUT_IMAGE = "page.png"
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OUTPUT_IMAGE = "page_translated.png"
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TRANSLATIONS_FILE = "output.txt"
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BUBBLES_FILE = "bubbles.json"
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FONT_PATH = "font.ttf"
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FONT_FALLBACK = "/System/Library/Fonts/Helvetica.ttc"
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FONT_COLOR = (0, 0, 0)
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BUBBLE_FILL = (255, 255, 255)
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# ─────────────────────────────────────────────
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# STEP 1: PARSE output.txt
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# Robust parser: always takes the LAST
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# whitespace-separated column as translation.
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# ─────────────────────────────────────────────
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def parse_translations(filepath):
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"""
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Parses output.txt and returns {bubble_id: translated_text}.
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Strategy: split each #N line on 2+ consecutive spaces,
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then always take the LAST token as the translation.
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This is robust even when original or translated text
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contains internal spaces.
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Args:
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filepath : Path to output.txt
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Returns:
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Dict {1: "LA NOIA ESTÀ IL·LESA!", ...}
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"""
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translations = {}
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with open(filepath, "r", encoding="utf-8") as f:
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for line in f:
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line = line.rstrip("\n")
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# Must start with #N
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if not re.match(r"^#\d+", line.strip()):
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continue
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# Split on 2+ spaces → [bubble_id_col, original_col, translated_col]
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parts = re.split(r" {2,}", line.strip())
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if len(parts) < 3:
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continue
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bubble_id = int(re.sub(r"[^0-9]", "", parts[0]))
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translated = parts[-1].strip() # always last column
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translations[bubble_id] = translated
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print(f" ✅ Parsed {len(translations)} translation(s) from {filepath}")
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for bid, text in sorted(translations.items()):
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print(f" #{bid}: {text}")
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return translations
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# ─────────────────────────────────────────────
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# STEP 2: LOAD BUBBLE BOXES from bubbles.json
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# These were saved by manga-translator.py
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# and are guaranteed to match the clusters.
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# ─────────────────────────────────────────────
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def load_bubble_boxes(filepath):
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"""
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Loads bubble bounding boxes from bubbles.json.
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Expected format:
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{
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"1": {"x": 120, "y": 45, "w": 180, "h": 210},
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"2": { ... },
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...
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}
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Args:
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filepath : Path to bubbles.json
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Returns:
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Dict {bubble_id (int): (x, y, w, h)}
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"""
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with open(filepath, "r", encoding="utf-8") as f:
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raw = json.load(f)
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boxes = {}
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for key, val in raw.items():
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bubble_id = int(key)
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boxes[bubble_id] = (val["x"], val["y"], val["w"], val["h"])
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print(f" ✅ Loaded {len(boxes)} bubble box(es) from {filepath}")
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for bid, (x, y, w, h) in sorted(boxes.items()):
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print(f" #{bid}: ({x},{y}) {w}×{h}px")
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return boxes
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# ─────────────────────────────────────────────
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# STEP 3: ERASE BUBBLE CONTENT
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# Fills a rectangular region with white.
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# Uses a slightly inset rect to preserve
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# the bubble border.
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# ─────────────────────────────────────────────
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def erase_bubble_rect(image, x, y, w, h, padding=6):
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"""
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Fills the interior of a bounding box with white,
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leaving a border of `padding` pixels intact.
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Args:
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image : BGR numpy array (modified in place)
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x,y,w,h : Bounding box
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padding : Pixels to leave as border (default: 6)
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"""
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x1 = max(0, x + padding)
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y1 = max(0, y + padding)
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x2 = min(image.shape[1], x + w - padding)
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y2 = min(image.shape[0], y + h - padding)
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if x2 > x1 and y2 > y1:
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image[y1:y2, x1:x2] = 255
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# ─────────────────────────────────────────────
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# STEP 4: FIT FONT SIZE
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# Finds the largest font size where the text
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# fits inside (max_w × max_h) with word wrap.
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# ─────────────────────────────────────────────
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def fit_font_size(draw, text, max_w, max_h, font_path,
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min_size=8, max_size=48):
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"""
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Binary-searches for the largest font size where
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word-wrapped text fits within the given box.
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Args:
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draw : PIL ImageDraw instance
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text : Text string to fit
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max_w : Available width in pixels
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max_h : Available height in pixels
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font_path : Path to .ttf font (or None for default)
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min_size : Smallest font size to try (default: 8)
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max_size : Largest font size to try (default: 48)
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Returns:
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(font, list_of_wrapped_lines)
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"""
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best_font = None
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best_lines = [text]
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for size in range(max_size, min_size - 1, -1):
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try:
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font = ImageFont.truetype(font_path, size) if font_path else ImageFont.load_default()
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except Exception:
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font = ImageFont.load_default()
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# Word-wrap
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words = text.split()
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lines = []
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current = ""
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for word in words:
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test = (current + " " + word).strip()
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bbox = draw.textbbox((0, 0), test, font=font)
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if (bbox[2] - bbox[0]) <= max_w:
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current = test
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else:
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if current:
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lines.append(current)
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current = word
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if current:
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lines.append(current)
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# Measure total block height
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lh_bbox = draw.textbbox((0, 0), "Ay", font=font)
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line_h = (lh_bbox[3] - lh_bbox[1]) + 3
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total_h = line_h * len(lines)
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if total_h <= max_h:
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best_font = font
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best_lines = lines
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break
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if best_font is None:
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best_font = ImageFont.load_default()
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return best_font, best_lines
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# ─────────────────────────────────────────────
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# STEP 5: RENDER TEXT INTO BUBBLE
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# Draws translated text centered inside
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# the bubble bounding box.
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# ─────────────────────────────────────────────
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def render_text_in_bubble(pil_image, x, y, w, h, text,
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font_path, padding=12,
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font_color=(0, 0, 0)):
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"""
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Renders text centered (horizontally + vertically)
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inside a bubble bounding box.
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Args:
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pil_image : PIL Image (modified in place)
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x,y,w,h : Bubble bounding box
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text : Translated text to render
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font_path : Path to .ttf font (or None)
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padding : Inner padding in pixels (default: 12)
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font_color : RGB color tuple (default: black)
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"""
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draw = ImageDraw.Draw(pil_image)
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inner_w = max(1, w - padding * 2)
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inner_h = max(1, h - padding * 2)
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font, lines = fit_font_size(draw, text, inner_w, inner_h, font_path)
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lh_bbox = draw.textbbox((0, 0), "Ay", font=font)
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line_h = (lh_bbox[3] - lh_bbox[1]) + 3
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total_h = line_h * len(lines)
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start_y = y + padding + max(0, (inner_h - total_h) // 2)
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for line in lines:
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lb = draw.textbbox((0, 0), line, font=font)
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line_w = lb[2] - lb[0]
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start_x = x + padding + max(0, (inner_w - line_w) // 2)
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draw.text((start_x, start_y), line, font=font, fill=font_color)
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start_y += line_h
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# ─────────────────────────────────────────────
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# RESOLVE FONT
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# ─────────────────────────────────────────────
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def resolve_font(font_path, fallback):
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if font_path and os.path.exists(font_path):
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print(f" ✅ Using font: {font_path}")
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return font_path
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if fallback and os.path.exists(fallback):
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print(f" ⚠️ '{font_path}' not found → fallback: {fallback}")
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return fallback
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print(" ⚠️ No font found. Using PIL default.")
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return None
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# ─────────────────────────────────────────────
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# MAIN RENDERER
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# ─────────────────────────────────────────────
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def render_translated_page(
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input_image = INPUT_IMAGE,
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output_image = OUTPUT_IMAGE,
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translations_file = TRANSLATIONS_FILE,
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bubbles_file = BUBBLES_FILE,
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font_path = FONT_PATH,
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font_fallback = FONT_FALLBACK,
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font_color = FONT_COLOR,
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erase_padding = 6,
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text_padding = 12,
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debug = False,
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):
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"""
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Full rendering pipeline:
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1. Parse translations from output.txt
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2. Load bubble boxes from bubbles.json
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3. Load original manga page
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4. Erase original text from each bubble
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5. Render translated text into each bubble
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6. Save output image
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Args:
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input_image : Source manga page (default: 'page.png')
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output_image : Output path (default: 'page_translated.png')
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translations_file : Path to output.txt (default: 'output.txt')
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bubbles_file : Path to bubbles.json (default: 'bubbles.json')
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font_path : Primary .ttf font path
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font_fallback : Fallback font path
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font_color : RGB text color (default: black)
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erase_padding : Border px when erasing (default: 6)
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text_padding : Inner padding for text (default: 12)
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debug : Save debug_render.png (default: False)
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"""
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print("=" * 55)
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print(" MANGA TRANSLATOR — RENDERER")
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print("=" * 55)
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# ── 1. Parse translations ─────────────────────────────────────────────────
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print("\n📄 Parsing translations...")
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translations = parse_translations(translations_file)
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if not translations:
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print("❌ No translations found. Aborting.")
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return
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# ── 2. Load bubble boxes ──────────────────────────────────────────────────
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print(f"\n📦 Loading bubble boxes from {bubbles_file}...")
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bubble_boxes = load_bubble_boxes(bubbles_file)
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if not bubble_boxes:
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print("❌ No bubble boxes found. Re-run manga-translator.py first.")
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return
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# ── 3. Load image ─────────────────────────────────────────────────────────
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print(f"\n🖼️ Loading image: {input_image}")
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cv_image = cv2.imread(input_image)
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if cv_image is None:
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print(f"❌ Could not load: {input_image}")
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return
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print(f" Image size: {cv_image.shape[1]}×{cv_image.shape[0]}px")
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# ── 4. Erase original text ────────────────────────────────────────────────
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print("\n🧹 Erasing original bubble text...")
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for bubble_id in sorted(translations.keys()):
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if bubble_id not in bubble_boxes:
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print(f" ⚠️ #{bubble_id}: no box in bubbles.json, skipping")
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continue
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x, y, w, h = bubble_boxes[bubble_id]
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erase_bubble_rect(cv_image, x, y, w, h, padding=erase_padding)
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print(f" Erased #{bubble_id} at ({x},{y}) {w}×{h}px")
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# ── 5. Convert to PIL ─────────────────────────────────────────────────────
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pil_image = Image.fromarray(cv2.cvtColor(cv_image, cv2.COLOR_BGR2RGB))
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# ── 6. Resolve font ───────────────────────────────────────────────────────
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print("\n🔤 Resolving font...")
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resolved_font = resolve_font(font_path, font_fallback)
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# ── 7. Render translated text ─────────────────────────────────────────────
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print("\n✍️ Rendering translated text...")
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for bubble_id, text in sorted(translations.items()):
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if bubble_id not in bubble_boxes:
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continue
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x, y, w, h = bubble_boxes[bubble_id]
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render_text_in_bubble(
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pil_image, x, y, w, h, text,
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font_path = resolved_font,
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padding = text_padding,
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font_color = font_color,
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)
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print(f" #{bubble_id}: '{text}' → ({x},{y}) {w}×{h}px")
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# ── 8. Debug overlay ──────────────────────────────────────────────────────
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if debug:
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dbg = pil_image.copy()
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dbg_draw = ImageDraw.Draw(dbg)
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for bubble_id, (x, y, w, h) in sorted(bubble_boxes.items()):
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dbg_draw.rectangle([x, y, x + w, y + h], outline=(255, 0, 0), width=2)
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dbg_draw.text((x + 4, y + 4), f"#{bubble_id}", fill=(255, 0, 0))
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dbg.save("debug_render.png")
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print("\n 🐛 Debug render saved → debug_render.png")
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# ── 9. Save output ────────────────────────────────────────────────────────
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print(f"\n💾 Saving → {output_image}")
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pil_image.save(output_image, "PNG")
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print(f" ✅ Done! Open: {output_image}")
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print("=" * 55)
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# ─────────────────────────────────────────────
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# ENTRY POINT
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# ─────────────────────────────────────────────
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if __name__ == "__main__":
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render_translated_page(
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input_image = "page.png",
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output_image = "page_translated.png",
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translations_file = "output.txt",
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bubbles_file = "bubbles.json",
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font_path = "font.ttf",
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font_fallback = "/System/Library/Fonts/Helvetica.ttc",
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font_color = (0, 0, 0),
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erase_padding = 6,
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text_padding = 12,
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debug = True,
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)
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Reference in New Issue
Block a user