| import json |
| import difflib |
|
|
| def highlight_diff(a, b): |
| """生成红色/绿色高亮 HTML""" |
| matcher = difflib.SequenceMatcher(None, a, b) |
| html_a, html_b = [], [] |
| for tag, i1, i2, j1, j2 in matcher.get_opcodes(): |
| if tag == 'equal': |
| html_a.append(a[i1:i2]) |
| html_b.append(b[j1:j2]) |
| elif tag in ('replace', 'delete'): |
| html_a.append(f'<span class="del">{a[i1:i2]}</span>') |
| elif tag == 'insert': |
| html_b.append(f'<span class="ins">{b[j1:j2]}</span>') |
| return ''.join(html_a), ''.join(html_b) |
|
|
|
|
| def insert_highlight(html_text, start, end): |
| """在 HTML 文本中插入黄色下划线（基于字符索引）""" |
| |
| |
| plain = '' |
| mapping = [] |
| inside_tag = False |
| for idx, ch in enumerate(html_text): |
| if ch == '<': |
| inside_tag = True |
| elif ch == '>': |
| inside_tag = False |
| elif not inside_tag: |
| mapping.append(idx) |
| plain += ch |
|
|
| if end > len(mapping): |
| return html_text |
|
|
| |
| html_start = mapping[start] |
| html_end = mapping[end - 1] + 1 |
|
|
| return ( |
| html_text[:html_start] |
| + f'<span class="highlight" title="标注区域: {start}-{end}">' |
| + html_text[html_start:html_end] |
| + '</span>' |
| + html_text[html_end:] |
| ) |
|
|
|
|
| def generate_html(data, output_path="ocr_diff_viewer.html"): |
| html_items = [] |
|
|
| for i, item in enumerate(data): |
| text = item.get("tiny_shuffled_content", "") |
| ocr = item.get("tiny_shuffled_content_ocr", "").replace("\n", "").replace(" ", "") |
| span = item.get("spans", [{}])[0] |
| start, end = span.get("start"), span.get("end") |
|
|
| |
| |
| |
|
|
| |
| |
| |
|
|
| html_text, html_ocr = highlight_diff(text, ocr) |
|
|
| |
| if start is not None and end is not None: |
| html_text = insert_highlight(html_text, start, end) |
|
|
| html_items.append(f""" |
| <div class="page" id="page-{i}" style="display: {'block' if i==0 else 'none'};"> |
| <h2>样本 {i+1}/{len(data)}</h2> |
| |
| <div class="block"> |
| <h3>原文（text）</h3> |
| <div class="box">{html_text}</div> |
| </div> |
| |
| <div class="block"> |
| <h3>OCR 结果（ocr）</h3> |
| <div class="box">{html_ocr}</div> |
| </div> |
| </div> |
| """) |
|
|
| html_template = f""" |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>OCR Diff Viewer</title> |
| <style> |
| body {{ |
| font-family: "Courier New", monospace; |
| background-color: #f6f6f6; |
| padding: 20px; |
| }} |
| .box {{ |
| background: #fff; |
| border: 1px solid #ccc; |
| padding: 15px; |
| white-space: pre-wrap; |
| font-size: 16px; |
| line-height: 1.5; |
| }} |
| .del {{ background-color: #ffcccc; }} |
| .ins {{ background-color: #ccffcc; }} |
| .highlight {{ |
| text-decoration: underline solid #FFD700 3px; |
| text-underline-offset: 4px; |
| cursor: help; |
| background-color: rgba(255, 215, 0, 0.15); |
| }} |
| .highlight:hover {{ |
| background-color: rgba(255, 215, 0, 0.35); |
| }} |
| </style> |
| </head> |
| <body> |
| <h1>📘 OCR 文本差异可视化</h1> |
| {"".join(html_items)} |
| <div class="nav" style="text-align:center; margin-top:30px;"> |
| <button onclick="prevPage()">上一条</button> |
| <button onclick="nextPage()">下一条</button> |
| <p id="page-indicator"></p> |
| </div> |
| <script> |
| let currentPage = 0; |
| const total = {len(data)}; |
| const indicator = document.getElementById("page-indicator"); |
| |
| function showPage(i) {{ |
| document.querySelectorAll('.page').forEach((el, idx) => {{ |
| el.style.display = idx === i ? 'block' : 'none'; |
| }}); |
| indicator.innerText = `第 ${{i+1}} / ${{total}} 条`; |
| }} |
| |
| function nextPage() {{ |
| if (currentPage < total - 1) {{ |
| currentPage++; |
| showPage(currentPage); |
| }} |
| }} |
| function prevPage() {{ |
| if (currentPage > 0) {{ |
| currentPage--; |
| showPage(currentPage); |
| }} |
| }} |
| |
| showPage(currentPage); |
| </script> |
| </body> |
| </html> |
| """ |
|
|
| with open(output_path, "w", encoding="utf-8") as f: |
| f.write(html_template) |
| print(f"✅ 已生成: {output_path}") |
|
|
|
|
| if __name__ == "__main__": |
| input_path = "/vol/zhaoy/ds-ocr/data/CCI3-Data/sample200_len1.0-1.2k/merged_ocr.json" |
| with open(input_path, "r", encoding="utf-8") as f: |
| data = json.load(f) |
|
|
| generate_html(data) |
|
|
