{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"bbcce9bd-b637-4fa6-8a80-dadabab80104","title":"数字化生存 20周年纪念版","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121307362","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"bbcce9bd-b637-4fa6-8a80-dadabab80104","id":"bbcce9bd-b637-4fa6-8a80-dadabab80104","uuid":"bbcce9bd-b637-4fa6-8a80-dadabab80104","title":"数字化生存 20周年纪念版","normalized_title":"数字化生存20周年纪念版","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121307362","isbns":["9787121307362"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":362,"navigation_url":"https://workshop.closeclaw.top/ai/book/bbcce9bd-b637-4fa6-8a80-dadabab80104","title_url":"https://workshop.closeclaw.top/ai/title/%E6%95%B0%E5%AD%97%E5%8C%96%E7%94%9F%E5%AD%98%2020%E5%91%A8%E5%B9%B4%E7%BA%AA%E5%BF%B5%E7%89%88","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/bbcce9bd-b637-4fa6-8a80-dadabab80104/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/bbcce9bd-b637-4fa6-8a80-dadabab80104/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/bbcce9bd-b637-4fa6-8a80-dadabab80104","page_url":"https://workshop.closeclaw.top/api/ai/books/bbcce9bd-b637-4fa6-8a80-dadabab80104/page","search_url":"https://workshop.closeclaw.top/api/ai/books/bbcce9bd-b637-4fa6-8a80-dadabab80104/search"},"page":{"printed_page":180,"pdf_page":251,"physical_index":251,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"b264e83701fdd035f4b09b7465ba0f49a656066554b49a736bb59dc853bbfcd1"},"chapter":"20周年纪念版 数字化生存 一本影响千百万人的互联网启蒙经典著作","content":"3. 便捷的联系\n\n仅仅数字化是不够的\n\n当你阅读这页文字的时候，你的眼睛和大脑不断把这种印刷媒介转换成你可以当作有意义的文字来处理和辨识的信号。如果你想把这页内容传真出去，传真机上的扫描仪会绘制出一幅由一条条线组成的精细的图形，并用0和1分别代表有墨迹和没有墨迹的黑和白。这个数字化的图形反映的原件的逼真程度，完全要视扫描仪的精细度而定。但是，无论你的传真机扫描得多么精确，传真件最终也只是原件的复制图像罢了，它既不是字母，也不是单词，而是像素。\n\n如果由计算机来诠释这幅图像的内容，就必须经过一个和人阅读时差不多的识别过程：先把小块的像素转换成字母，然后再把字母拼成单词，其中还包括了区分字母0和数字0、分辨出文本内容和手写痕迹、搞清咖啡渍和图解的不同，同时还要在充满噪声（扫描和传输过程产生的干扰）的背景中明察秋毫。\n\n180\n\nbeing digital|数字化生存","previous_page":179,"next_page":181}