{"id":342,"date":"2025-09-08T16:01:52","date_gmt":"2025-09-08T08:01:52","guid":{"rendered":"https:\/\/www.ldfix.com\/?p=342"},"modified":"2025-09-13T15:26:48","modified_gmt":"2025-09-13T07:26:48","slug":"jpg%e6%96%87%e4%bb%b6%e6%a0%bc%e5%bc%8f%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.ldfix.com\/index.php\/2025\/09\/08\/jpg%e6%96%87%e4%bb%b6%e6%a0%bc%e5%bc%8f%e8%a7%a3%e6%9e%90\/","title":{"rendered":"jpg\u6587\u4ef6\u683c\u5f0f\u89e3\u6790"},"content":{"rendered":"

\"\"<\/a><\/p>\n

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1. \u6587\u4ef6\u5934\u4e0e\u6587\u4ef6\u5c3e<\/strong><\/h3>\n
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  • SOI\uff08Start of Image\uff09<\/strong>\n
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        2. \u5173\u952e\u6570\u636e\u6bb5\u7ed3\u6784<\/strong><\/h3>\n

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        \u6838\u5fc3\u6bb5\u8be6\u89e3<\/strong><\/h4>\n
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        1. APP0\uff08\u5e94\u7528\u6570\u636e\u6bb5\uff09<\/strong>\n
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          • DQT\uff08\u91cf\u5316\u8868\u6bb5\uff09<\/strong>\n
              \n
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              \n
              <\/div>\n<\/div>\n
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                \n
                FF<\/span> C0 00<\/span> 11<\/span> 08<\/span> 01<\/span> E0 01<\/span> 40<\/span> 03<\/span> 01<\/span> 22<\/span> 00<\/span> 02<\/span> 11<\/span> 01<\/span> 03<\/span> 11<\/span> 01<\/span>\r\n<\/code><\/pre>\n<\/div>\n<\/li>\n<\/ul>\n<\/li>\n
              • DHT\uff08\u54c8\u592b\u66fc\u8868\u6bb5\uff09<\/strong>\n
                  \n
                • \u6807\u8bb0\u7801<\/strong>\uff1a0xFFC4<\/code><\/li>\n
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                • \u793a\u4f8b<\/strong>\uff1a\n
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                  • \u7279\u6b8a\u5904\u7406<\/strong>\uff1a\u6570\u636e\u6d41\u4e2d\u82e5\u51fa\u73b00xFF<\/code>\u9700\u8f6c\u4e49\u4e3a0xFF00<\/code>\uff0c0xFFD0~0xFFD7<\/code>\u4e3a\u91cd\u542f\u6807\u8bb0\uff08RSTn\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
                    \n
                    3. \u6570\u636e\u6d41\u4e0e\u538b\u7f29\u7279\u6027<\/strong><\/h3>\n
                      \n
                    • \u538b\u7f29\u6570\u636e<\/strong>\uff1a\u4f4d\u4e8eSOS\u6bb5\u540e\uff0c\u91c7\u7528\u54c8\u592b\u66fc\u7f16\u7801\u548c\u6e38\u7a0b\u7f16\u7801\uff08RLE\uff09\uff0cDC\u7cfb\u6570\u5b58\u50a8\u5dee\u503c\uff0cAC\u7cfb\u6570\u6309Zigzag\u987a\u5e8f\u6392\u5217\u3002<\/li>\n
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                      \n
                      4. \u6587\u4ef6\u9a8c\u8bc1\u4e0e\u7279\u5f81<\/strong><\/h3>\n
                        \n
                      • \u7279\u5f81\u5b57<\/strong>\uff1a\u5408\u6cd5JPEG\u6587\u4ef6\u5fc5\u987b\u4ee5FF D8<\/code>\u5f00\u5934\uff0cFF D9<\/code>\u7ed3\u5c3e\uff0c\u4e2d\u95f4\u53ef\u5305\u542bFF E0<\/code>\uff08APP0\uff09\u3001FF DB<\/code>\uff08DQT\uff09\u7b49\u6807\u8bb0\u3002<\/li>\n
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                        \n
                        \u603b\u7ed3<\/strong><\/h3>\n
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