f2966f123d
new file: PreProcessing/README.md new file: PreProcessing/scripts/compare_manual_matrix17.py new file: PreProcessing/scripts/draw_matrix17.py modified: PreProcessing/scripts/process_characters.py new file: PreProcessing/scripts/run_preprocessing.py
365 lines
12 KiB
Python
365 lines
12 KiB
Python
from __future__ import annotations
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import argparse
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from pathlib import Path
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import tkinter as tk
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from tkinter import messagebox
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import cv2
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import numpy as np
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IMAGE_SUFFIXES = {".png", ".jpg", ".jpeg", ".tif", ".tiff", ".bmp", ".webp"}
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GRID_SIZE = 17
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CELL_SIZE = 28
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PREVIEW_SIZE = 560
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def read_image(path: Path) -> np.ndarray:
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raw = np.fromfile(str(path), dtype=np.uint8)
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image = cv2.imdecode(raw, cv2.IMREAD_COLOR)
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if image is None:
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raise ValueError(f"Cannot read image: {path}")
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return image
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def write_image(path: Path, image: np.ndarray) -> None:
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ok, encoded = cv2.imencode(path.suffix, image)
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if not ok:
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raise ValueError(f"Cannot encode image: {path}")
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encoded.tofile(str(path))
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def matrix_to_text(matrix: np.ndarray) -> str:
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lines = []
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for row in matrix:
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lines.append("".join("1" if value else "0" for value in row))
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return "\n".join(lines) + "\n"
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def text_to_matrix(path: Path) -> np.ndarray:
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matrix = np.zeros((GRID_SIZE, GRID_SIZE), dtype=np.uint8)
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if not path.exists():
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return matrix
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rows = []
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for line in path.read_text(encoding="utf-8").splitlines():
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stripped = line.strip()
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if not stripped or stripped.startswith("#"):
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continue
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rows.append(stripped)
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if len(rows) == GRID_SIZE:
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break
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for row_index, row_text in enumerate(rows[:GRID_SIZE]):
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for col_index, char in enumerate(row_text[:GRID_SIZE]):
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matrix[row_index, col_index] = 1 if char == "1" else 0
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return matrix
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def matrix_to_png(matrix: np.ndarray, scale: int = 24) -> np.ndarray:
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image = np.where(matrix > 0, 0, 255).astype(np.uint8)
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return cv2.resize(
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image,
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(GRID_SIZE * scale, GRID_SIZE * scale),
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interpolation=cv2.INTER_NEAREST,
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)
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class MatrixEditor:
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def __init__(
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self,
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root: tk.Tk,
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image_paths: list[Path],
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output_dir: Path,
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load_generated_dir: Path | None,
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) -> None:
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self.root = root
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self.image_paths = image_paths
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self.output_dir = output_dir
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self.load_generated_dir = load_generated_dir
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self.output_dir.mkdir(parents=True, exist_ok=True)
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self.index = 0
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self.matrix = np.zeros((GRID_SIZE, GRID_SIZE), dtype=np.uint8)
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self.paint_value = 1
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self.preview_photo: tk.PhotoImage | None = None
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self.preview_temp = Path("/private/tmp/matrix17_editor_preview.png")
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self.root.title("17x17 Matrix Editor")
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self._build_ui()
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self._bind_keys()
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self.load_current_image()
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@property
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def image_path(self) -> Path:
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return self.image_paths[self.index]
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@property
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def answer_path(self) -> Path:
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return self.output_dir / f"{self.image_path.stem}_matrix17.txt"
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@property
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def answer_png_path(self) -> Path:
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return self.output_dir / f"{self.image_path.stem}_matrix17.png"
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def _build_ui(self) -> None:
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main = tk.Frame(self.root)
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main.pack(fill=tk.BOTH, expand=True, padx=10, pady=10)
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left = tk.Frame(main)
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left.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)
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right = tk.Frame(main)
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right.pack(side=tk.LEFT, fill=tk.Y, padx=(12, 0))
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self.preview_canvas = tk.Canvas(
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left,
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width=PREVIEW_SIZE,
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height=PREVIEW_SIZE,
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bg="white",
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highlightthickness=1,
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highlightbackground="#999",
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)
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self.preview_canvas.pack(fill=tk.BOTH, expand=True)
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self.grid_canvas = tk.Canvas(
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right,
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width=GRID_SIZE * CELL_SIZE + 1,
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height=GRID_SIZE * CELL_SIZE + 1,
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bg="white",
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highlightthickness=1,
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highlightbackground="#777",
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)
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self.grid_canvas.pack()
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self.grid_canvas.bind("<Button-1>", self._on_left_click)
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self.grid_canvas.bind("<B1-Motion>", self._on_left_drag)
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self.grid_canvas.bind("<Button-3>", self._on_right_click)
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self.grid_canvas.bind("<B3-Motion>", self._on_right_drag)
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buttons = tk.Frame(right)
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buttons.pack(fill=tk.X, pady=(10, 0))
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tk.Button(buttons, text="上一张", command=self.prev_image).grid(
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row=0, column=0, sticky="ew", padx=2, pady=2
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)
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tk.Button(buttons, text="下一张", command=self.next_image).grid(
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row=0, column=1, sticky="ew", padx=2, pady=2
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)
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tk.Button(buttons, text="保存", command=self.save_answer).grid(
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row=1, column=0, sticky="ew", padx=2, pady=2
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)
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tk.Button(buttons, text="清空", command=self.clear_matrix).grid(
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row=1, column=1, sticky="ew", padx=2, pady=2
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)
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tk.Button(buttons, text="载入生成结果", command=self.load_generated).grid(
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row=2, column=0, columnspan=2, sticky="ew", padx=2, pady=2
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)
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buttons.columnconfigure(0, weight=1)
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buttons.columnconfigure(1, weight=1)
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self.status = tk.Label(right, text="", anchor="w", justify="left")
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self.status.pack(fill=tk.X, pady=(8, 0))
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def _bind_keys(self) -> None:
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self.root.bind("<Left>", lambda _event: self.prev_image())
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self.root.bind("<Right>", lambda _event: self.next_image())
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self.root.bind("s", lambda _event: self.save_answer())
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self.root.bind("S", lambda _event: self.save_answer())
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self.root.bind("c", lambda _event: self.clear_matrix())
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self.root.bind("C", lambda _event: self.clear_matrix())
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self.root.bind("1", lambda _event: self.set_paint_value(1))
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self.root.bind("0", lambda _event: self.set_paint_value(0))
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def set_paint_value(self, value: int) -> None:
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self.paint_value = 1 if value else 0
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self._update_status()
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def load_current_image(self) -> None:
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self.matrix = text_to_matrix(self.answer_path)
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self._draw_preview()
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self._draw_grid()
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self._update_status()
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def _draw_preview(self) -> None:
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image = read_image(self.image_path)
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height, width = image.shape[:2]
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scale = min(PREVIEW_SIZE / height, PREVIEW_SIZE / width)
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new_width = max(1, int(round(width * scale)))
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new_height = max(1, int(round(height * scale)))
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resized = cv2.resize(image, (new_width, new_height), interpolation=cv2.INTER_NEAREST)
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canvas = np.full((PREVIEW_SIZE, PREVIEW_SIZE, 3), 255, dtype=np.uint8)
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x = (PREVIEW_SIZE - new_width) // 2
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y = (PREVIEW_SIZE - new_height) // 2
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canvas[y : y + new_height, x : x + new_width] = resized
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write_image(self.preview_temp, canvas)
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self.preview_photo = tk.PhotoImage(file=str(self.preview_temp))
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self.preview_canvas.delete("all")
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self.preview_canvas.create_image(0, 0, anchor="nw", image=self.preview_photo)
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def _draw_grid(self) -> None:
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self.grid_canvas.delete("all")
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for row in range(GRID_SIZE):
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for col in range(GRID_SIZE):
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x1 = col * CELL_SIZE
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y1 = row * CELL_SIZE
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x2 = x1 + CELL_SIZE
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y2 = y1 + CELL_SIZE
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fill = "black" if self.matrix[row, col] else "white"
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self.grid_canvas.create_rectangle(
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x1,
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y1,
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x2,
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y2,
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fill=fill,
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outline="#888",
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)
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for index in range(GRID_SIZE + 1):
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pos = index * CELL_SIZE
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width = 2 if index in (0, GRID_SIZE) else 1
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self.grid_canvas.create_line(0, pos, GRID_SIZE * CELL_SIZE, pos, fill="#555", width=width)
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self.grid_canvas.create_line(pos, 0, pos, GRID_SIZE * CELL_SIZE, fill="#555", width=width)
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def _grid_cell_from_event(self, event: tk.Event) -> tuple[int, int] | None:
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col = int(event.x // CELL_SIZE)
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row = int(event.y // CELL_SIZE)
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if 0 <= row < GRID_SIZE and 0 <= col < GRID_SIZE:
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return row, col
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return None
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def _set_cell_from_event(self, event: tk.Event, value: int) -> None:
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cell = self._grid_cell_from_event(event)
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if cell is None:
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return
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row, col = cell
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if self.matrix[row, col] == value:
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return
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self.matrix[row, col] = value
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self._draw_grid()
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self._update_status()
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def _on_left_click(self, event: tk.Event) -> None:
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cell = self._grid_cell_from_event(event)
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if cell is None:
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return
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row, col = cell
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self.paint_value = 0 if self.matrix[row, col] else 1
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self.matrix[row, col] = self.paint_value
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self._draw_grid()
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self._update_status()
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def _on_left_drag(self, event: tk.Event) -> None:
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self._set_cell_from_event(event, self.paint_value)
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def _on_right_click(self, event: tk.Event) -> None:
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self.paint_value = 0
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self._set_cell_from_event(event, 0)
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self._update_status()
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def _on_right_drag(self, event: tk.Event) -> None:
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self._set_cell_from_event(event, 0)
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def save_answer(self) -> None:
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self.answer_path.write_text(matrix_to_text(self.matrix), encoding="utf-8")
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write_image(self.answer_png_path, matrix_to_png(self.matrix))
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self._update_status(saved=True)
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def clear_matrix(self) -> None:
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self.matrix[:, :] = 0
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self._draw_grid()
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self._update_status()
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def load_generated(self) -> None:
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if self.load_generated_dir is None:
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messagebox.showinfo("提示", "未配置生成结果目录")
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return
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path = self.load_generated_dir / f"{self.image_path.stem}_matrix17.txt"
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if not path.exists():
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messagebox.showinfo("提示", f"找不到生成结果：\n{path}")
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return
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self.matrix = text_to_matrix(path)
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self._draw_grid()
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self._update_status()
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def prev_image(self) -> None:
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self.save_answer()
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self.index = (self.index - 1) % len(self.image_paths)
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self.load_current_image()
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def next_image(self) -> None:
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self.save_answer()
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self.index = (self.index + 1) % len(self.image_paths)
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self.load_current_image()
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def _update_status(self, saved: bool = False) -> None:
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filled = int(self.matrix.sum())
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two_by_two = count_2x2_blocks(self.matrix)
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saved_text = "已保存\n" if saved else ""
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self.status.config(
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text=(
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f"{saved_text}"
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f"{self.index + 1}/{len(self.image_paths)}\n"
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f"{self.image_path.name}\n"
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f"黑格：{filled}\n"
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f"2x2 全黑：{two_by_two}\n"
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f"左键：切换/拖拽绘制\n"
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f"右键：擦除\n"
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f"S 保存，←/→ 切换"
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)
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)
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def count_2x2_blocks(matrix: np.ndarray) -> int:
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image = matrix > 0
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total = 0
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for row in range(GRID_SIZE - 1):
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for col in range(GRID_SIZE - 1):
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total += int(image[row : row + 2, col : col + 2].sum() == 4)
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return total
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def main() -> None:
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parser = argparse.ArgumentParser(description="Draw manual 17x17 matrix labels.")
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parser.add_argument(
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"--input-dir",
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type=Path,
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default=Path("PreProcessing/original_characters"),
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)
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parser.add_argument(
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"--output-dir",
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type=Path,
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default=Path("PreProcessing/manual_matrices"),
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)
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parser.add_argument(
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"--load-generated-dir",
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type=Path,
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default=Path("PreProcessing/processed_characters"),
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)
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args = parser.parse_args()
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image_paths = sorted(
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path
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for path in args.input_dir.iterdir()
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if path.is_file() and path.suffix.lower() in IMAGE_SUFFIXES
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)
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if not image_paths:
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raise SystemExit(f"No images found in {args.input_dir}")
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root = tk.Tk()
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MatrixEditor(
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root=root,
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image_paths=image_paths,
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output_dir=args.output_dir,
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load_generated_dir=args.load_generated_dir,
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)
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root.mainloop()
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if __name__ == "__main__":
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main()
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