{"id":477380,"date":"2023-08-09T09:11:34","date_gmt":"2023-08-09T09:11:34","guid":{"rendered":""},"modified":"2023-11-16T16:38:27","modified_gmt":"2023-11-16T16:38:27","slug":"graphics-interchange-format","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/graphics-interchange-format\/","title":{"rendered":"\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u4ea4\u63db\u30d5\u30a9\u30fc\u30de\u30c3\u30c8"},"content":{"rendered":"

Graphics Interchange Format (GIF \u3068\u7565\u3055\u308c\u308b\u3053\u3068\u3082\u3088\u304f\u3042\u308a\u307e\u3059) \u306f\u3001\u30d4\u30af\u30bb\u30eb\u3042\u305f\u308a\u6700\u5927 8 \u30d3\u30c3\u30c8\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u4e00\u822c\u7684\u306a\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u753b\u50cf\u5f62\u5f0f\u3067\u3001\u5358\u4e00\u306e\u753b\u50cf\u304c\u6700\u5927 256 \u8272\u306e\u7570\u306a\u308b\u8272\u306e\u30d1\u30ec\u30c3\u30c8\u3092\u53c2\u7167\u3067\u304d\u307e\u3059\u3002 GIF \u306f\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u80fd\u529b\u304c\u5e83\u304f\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u4ea4\u63db\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u767b\u5834<\/h2>\n

GIF \u306e\u6b74\u53f2\u306f 1987 \u5e74\u306b\u59cb\u307e\u308a\u3001\u30a2\u30e1\u30ea\u30ab\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u4f1a\u793e CompuServe \u306b\u3088\u3063\u3066\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u5f62\u5f0f\u306e\u5f53\u521d\u306e\u76ee\u7684\u306f\u3001\u4f4e\u901f\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u5358\u7d14\u306a\u753b\u50cf\u3084\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8868\u793a\u3059\u308b\u3053\u3068\u3067\u3057\u305f\u3002 CompuServe \u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2 \u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3042\u308b Steve Wilhite \u304c\u3001\u3053\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u4e3b\u306a\u4f5c\u6210\u8005\u3068\u3057\u3066\u8a8d\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

GIF \u306f\u3001\u305d\u306e\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u30d5\u30a1\u30a4\u30eb \u30b5\u30a4\u30ba\u3001\u30b7\u30f3\u30d7\u30eb\u3055\u3001\u30ab\u30e9\u30fc\u753b\u50cf\u3084\u77ed\u3044\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u51e6\u7406\u306b\u304a\u3051\u308b\u591a\u7528\u9014\u6027\u306b\u3088\u308a\u6025\u901f\u306b\u6ce8\u76ee\u3092\u96c6\u3081\u3001\u521d\u671f\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6587\u5316\u306e\u904d\u5728\u7684\u306a\u5074\u9762\u3068\u306a\u308a\u307e\u3057\u305f\u3002 2012 \u5e74\u306b\u300cGIF\u300d\u3068\u3044\u3046\u8a00\u8449\u304c\u30aa\u30c3\u30af\u30b9\u30d5\u30a9\u30fc\u30c9\u82f1\u8a9e\u8f9e\u5178\u306e\u300cUSA Word of the Year\u300d\u306b\u9078\u3070\u308c\u305f\u3053\u3068\u3067\u3001\u305d\u306e\u6587\u5316\u7684\u5f71\u97ff\u304c\u5f37\u8abf\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n

\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u4ea4\u63db\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u3055\u3089\u306b\u6df1\u304f\u6398\u308a\u4e0b\u3052\u308b<\/h2>\n

GIF \u306f\u3001Lempel-Ziv-Welch (LZW) \u3068\u3057\u3066\u77e5\u3089\u308c\u308b\u30c7\u30fc\u30bf\u5727\u7e2e\u6280\u8853\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u8996\u899a\u7684\u306a\u54c1\u8cea\u3092\u52a3\u5316\u3055\u305b\u308b\u3053\u3068\u306a\u304f\u30d5\u30a1\u30a4\u30eb \u30b5\u30a4\u30ba\u3092\u524a\u6e1b\u3059\u308b\u30ed\u30b9\u30ec\u30b9 \u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3059\u3002\u3053\u306e\u5727\u7e2e\u6280\u8853\u306b\u3088\u308a\u3001GIF \u306f\u5e2f\u57df\u5e45\u306e\u6700\u5c0f\u5316\u3068\u901f\u5ea6\u306e\u6700\u5927\u5316\u304c\u4e3b\u306a\u95a2\u5fc3\u4e8b\u3067\u3042\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u306e\u4f7f\u7528\u306b\u6700\u9069\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

JPEG \u3084 PNG \u306a\u3069\u306e\u4ed6\u306e\u753b\u50cf\u5f62\u5f0f\u3068\u306f\u7570\u306a\u308a\u3001GIF \u306b\u306f\u3001\u8907\u6570\u306e\u753b\u50cf\u3092\u540c\u3058\u30d5\u30a1\u30a4\u30eb\u306b\u4fdd\u5b58\u3067\u304d\u308b\u72ec\u81ea\u306e\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001\u5404\u30d5\u30ec\u30fc\u30e0\u9593\u306e\u9045\u5ef6\u6642\u9593\u3092\u5236\u5fa1\u3057\u3066\u3001\u57fa\u672c\u7684\u306a\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

GIF \u306e\u5185\u90e8\u69cb\u9020\u3092\u89e3\u51cd\u3059\u308b<\/h2>\n

GIF \u30d5\u30a1\u30a4\u30eb\u306f\u56fa\u5b9a\u9577\u306e\u30d8\u30c3\u30c0\u30fc \u30d6\u30ed\u30c3\u30af\u3067\u59cb\u307e\u308a\u3001\u305d\u306e\u5f8c\u306b\u30ad\u30e3\u30f3\u30d0\u30b9 \u30b5\u30a4\u30ba\u3001\u8272\u306e\u89e3\u50cf\u5ea6\u3001\u80cc\u666f\u8272\u3001\u304a\u3088\u3073\u30b0\u30ed\u30fc\u30d0\u30eb \u30ab\u30e9\u30fc \u30c6\u30fc\u30d6\u30eb\u3092\u8a18\u8ff0\u3059\u308b\u56fa\u5b9a\u9577\u306e\u8ad6\u7406\u753b\u9762\u8a18\u8ff0\u5b50\u30d6\u30ed\u30c3\u30af\u304c\u7d9a\u304d\u307e\u3059\u3002 GIF \u5185\u306e\u500b\u3005\u306e\u753b\u50cf\u307e\u305f\u306f\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3 \u30d5\u30ec\u30fc\u30e0\u306f\u3001\u72ec\u81ea\u306e\u30ed\u30fc\u30ab\u30eb \u30ab\u30e9\u30fc \u30c6\u30fc\u30d6\u30eb\u3092\u542b\u3080\u500b\u5225\u306e\u753b\u50cf\u8a18\u8ff0\u5b50\u30d6\u30ed\u30c3\u30af\u306b\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u6b21\u306b\u3001\u4e00\u9023\u306e\u753b\u50cf\u306f\u3001Graphic Control Extension \u30d6\u30ed\u30c3\u30af\u3067\u6307\u5b9a\u3055\u308c\u305f\u53ef\u5909\u9045\u5ef6\u3067\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u5316\u3055\u308c\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u5168\u4f53\u306f\u3001\u30b7\u30f3\u30b0\u30eb\u30d0\u30a4\u30c8\u306e GIF \u30c8\u30ec\u30fc\u30e9\u30fc\u3067\u7d42\u4e86\u3057\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u30d6\u30ed\u30c3\u30af\u306f\u30d0\u30a4\u30c8\u30a2\u30e9\u30a4\u30f3\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u4ea4\u63db\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u4e3b\u8981\u306a\u6a5f\u80fd\u3092\u5f37\u8abf\u3059\u308b<\/h2>\n
    \n
  1. \u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u30b7\u30fc\u30b1\u30f3\u30b9:<\/strong> GIF \u306f 1 \u3064\u306e\u30d5\u30a1\u30a4\u30eb\u3067\u8907\u6570\u306e\u753b\u50cf\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u305d\u308c\u3089\u3092\u9023\u7d9a\u3057\u3066\u8868\u793a\u3057\u3066\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/li>\n
  2. 256 \u8272\u306e\u30d1\u30ec\u30c3\u30c8:<\/strong> GIF \u306e\u5404\u30d5\u30ec\u30fc\u30e0\u3067\u306f\u3001\u6700\u5927 256 \u500b\u306e\u56fa\u6709\u306e\u8272\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/li>\n
  3. \u900f\u660e\u5ea6:<\/strong> GIF \u306f\u5358\u8272\u3092\u900f\u660e\u3068\u3057\u3066\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u80cc\u666f\u304c\u900f\u3051\u3066\u898b\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n
  4. \u30ed\u30b9\u30ec\u30b9\u5727\u7e2e:<\/strong> GIF \u3067\u4f7f\u7528\u3055\u308c\u308b LZW \u5727\u7e2e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3088\u308a\u3001\u5727\u7e2e\u30d7\u30ed\u30bb\u30b9\u4e2d\u306b\u30c7\u30fc\u30bf\u304c\u5931\u308f\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n
  5. \u30a4\u30f3\u30bf\u30fc\u30ec\u30fc\u30b9:<\/strong> GIF \u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30ec\u30fc\u30b9\u3068\u547c\u3070\u308c\u308b\u30d7\u30ed\u30b0\u30ec\u30c3\u30b7\u30d6 \u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u5f62\u5f0f\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u3001\u753b\u50cf\u304c\u5b8c\u5168\u306b\u8aad\u307f\u8fbc\u307e\u308c\u308b\u524d\u306b\u8868\u793a\u3092\u958b\u59cb\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u4ea4\u63db\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u7a2e\u985e<\/h2>\n\n\n\n\n\n\n
    \u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/strong><\/th>\n\u62e1\u5927<\/strong><\/th>\n\u8aac\u660e<\/strong><\/th>\n<\/tr>\n<\/thead>\n
    GIF87a<\/td>\n.gif<\/td>\n\u9759\u6b62\u753b\u50cf\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30aa\u30ea\u30b8\u30ca\u30eb \u30d0\u30fc\u30b8\u30e7\u30f3\u3002<\/td>\n<\/tr>\n
    GIF89a<\/td>\n.gif<\/td>\n\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u66f4\u65b0\u3055\u308c\u3001\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3068\u900f\u660e\u5ea6\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u307e\u3057\u305f\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3001\u8ab2\u984c\u3001\u89e3\u6c7a\u7b56<\/h2>\n

    GIF \u306f\u4e3b\u306b\u3001Web \u4e0a\u3067\u30ed\u30b4\u3001\u30a2\u30a4\u30b3\u30f3\u3001\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3 \u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30d3\u30c7\u30aa\u30d7\u30ec\u30fc\u30e4\u30fc\u3092\u5fc5\u8981\u3068\u305b\u305a\u306b\u30b7\u30f3\u30d7\u30eb\u306a\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3067\u304d\u308b\u6a5f\u80fd\u304c\u7279\u306b\u4eba\u6c17\u3067\u3059\u3002<\/p>\n

    \u305f\u3060\u3057\u3001GIF \u306b\u306f\u3044\u304f\u3064\u304b\u306e\u5236\u9650\u304c\u3042\u308a\u307e\u3059\u3002 256 \u8272\u306e\u5236\u9650\u306b\u3088\u308a\u3001\u753b\u50cf\u306e\u8272\u6570\u304c\u5c11\u306a\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u306f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u8907\u96d1\u3055\u304c\u5236\u9650\u3055\u308c\u307e\u3059\u3002<\/p>\n

    \u3053\u308c\u3089\u306e\u5236\u9650\u306f\u3001\u3088\u308a\u8272\u6df1\u5ea6\u306e\u9ad8\u3044\u9759\u6b62\u753b\u50cf\u306e\u5834\u5408\u306f PNG\u3001\u30b5\u30a6\u30f3\u30c9\u4ed8\u304d\u306e\u8907\u96d1\u306a\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u5834\u5408\u306f HTML5 \u30d3\u30c7\u30aa\u306a\u3069\u3001\u4ed6\u306e\u5f62\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u514b\u670d\u3067\u304d\u307e\u3059\u3002<\/p>\n

    \u985e\u4f3c\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3068\u306e\u6bd4\u8f03<\/h2>\n\n\n\n\n\n\n\n
    \u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/strong><\/th>\n\u8272\u6df1\u5ea6<\/strong><\/th>\n\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3<\/strong><\/th>\n\u5727\u7e2e<\/strong><\/th>\n<\/tr>\n<\/thead>\n
    GIF<\/td>\n8\u30d3\u30c3\u30c8<\/td>\n\u306f\u3044<\/td>\n\u30ed\u30b9\u30ec\u30b9 (LZW)<\/td>\n<\/tr>\n
    JPEG<\/td>\n24\u30d3\u30c3\u30c8<\/td>\n\u3044\u3044\u3048<\/td>\n\u30ed\u30c3\u30b7\u30fc<\/td>\n<\/tr>\n
    PNG<\/td>\n24 \u30d3\u30c3\u30c8 (+8 \u30d3\u30c3\u30c8 \u30a2\u30eb\u30d5\u30a1)<\/td>\n\u3044\u3044\u3048<\/td>\n\u30ed\u30b9\u30ec\u30b9 (DEFLATE)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u5c06\u6765\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n

    GIF \u306f\u53e4\u3044\u5f62\u5f0f\u3067\u3059\u304c\u3001Web \u3068\u3068\u3082\u306b\u9032\u5316\u3057\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002 Giphy \u306e\u3088\u3046\u306a GIF \u30db\u30b9\u30c6\u30a3\u30f3\u30b0 \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u51fa\u73fe\u3068\u3001\u30bd\u30fc\u30b7\u30e3\u30eb \u30e1\u30c7\u30a3\u30a2 \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3068\u306e\u7d71\u5408\u306b\u3088\u308a\u3001\u7279\u306b\u30c7\u30b8\u30bf\u30eb \u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3051\u308b\u8868\u73fe\u5f62\u5f0f\u3068\u3057\u3066\u3001GIF \u306e\u4f7f\u7528\u304c\u5fa9\u6d3b\u3057\u307e\u3057\u305f\u3002<\/p>\n

    \u305f\u3060\u3057\u3001\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3 \u30dd\u30fc\u30bf\u30d6\u30eb \u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9 (APNG) \u3084 MPEG-4 Part 14 (MP4) \u306a\u3069\u306e\u65b0\u3057\u3044\u5f62\u5f0f\u304c\u5f90\u3005\u306b\u666e\u53ca\u3057\u3066\u304a\u308a\u3001\u3088\u308a\u512a\u308c\u305f\u5727\u7e2e\u3001\u9ad8\u54c1\u8cea\u3001\u30b5\u30a6\u30f3\u30c9\u306a\u3069\u306e\u8ffd\u52a0\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

    GIF \u306b\u95a2\u3059\u308b\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306e\u5f79\u5272<\/h2>\n

    OneProxy \u306b\u3088\u3063\u3066\u63d0\u4f9b\u3055\u308c\u308b\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306a\u3069\u306e\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001GIF \u3092\u64cd\u4f5c\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306e\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 GIF \u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u3053\u3068\u3067\u3001GIF \u3078\u306e\u3088\u308a\u9ad8\u901f\u304b\u3064\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30a2\u30af\u30bb\u30b9\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u7279\u5b9a\u306e Web \u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u5730\u57df\u3084\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u304c\u4e0d\u5b89\u5b9a\u306a\u5730\u57df\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u7279\u306b\u91cd\u8981\u3067\u3059\u3002\u307e\u305f\u3001GIF \u30db\u30b9\u30c6\u30a3\u30f3\u30b0 \u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u3059\u308b\u969b\u306e\u533f\u540d\u6027\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3082\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n

    \u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n
      \n
    1. GIF\u306e\u767a\u97f3\u30da\u30fc\u30b8<\/a><\/li>\n
    2. Giphy: \u4eba\u6c17\u306e\u3042\u308b GIF \u30db\u30b9\u30c6\u30a3\u30f3\u30b0 \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0<\/a><\/li>\n
    3. CompuServe \u306e\u30aa\u30ea\u30b8\u30ca\u30eb GIF \u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a><\/li>\n
    4. Mozilla \u306e APNG \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a><\/li>\n
    5. 21\u4e16\u7d00\u306e\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3GIF<\/a><\/li>\n<\/ol>\n

      GIF \u5f62\u5f0f\u306f\u6642\u4ee3\u3092\u8d85\u8d8a\u3057\u305f Web \u306e\u53e4\u5178\u3067\u3042\u308a\u3001\u30cb\u30c3\u30c1\u306a\u5206\u91ce\u3092\u958b\u62d3\u3057\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u8996\u899a\u8a00\u8a9e\u306e\u91cd\u8981\u306a\u90e8\u5206\u3067\u3042\u308a\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002\u9032\u5316\u3057\u7d9a\u3051\u308b\u30c7\u30b8\u30bf\u30eb\u74b0\u5883\u306b\u304a\u3051\u308b\u7d99\u7d9a\u7684\u306a\u95a2\u9023\u6027\u306f\u3001\u3053\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u9069\u5fdc\u6027\u3068\u305d\u306e\u89aa\u3057\u307f\u3084\u3059\u3044\u30b7\u30f3\u30d7\u30eb\u3055\u3092\u8a3c\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>","protected":false},"featured_media":492978,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477380","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Graphics Interchange Format: An In-Depth Exploration<\/mark>","faq_items":[{"question":"What is a Graphics Interchange Format (GIF)?","answer":"A Graphics Interchange Format, or GIF, is a popular bitmap image format that supports up to 8 bits per pixel, allowing a single image to reference a palette of up to 256 distinct colors. GIFs are well-known for their ability to support animations."},{"question":"Who created the Graphics Interchange Format?","answer":"The Graphics Interchange Format was introduced by the American software company CompuServe in 1987. The primary creator of the format is recognized as Steve Wilhite, a software engineer at CompuServe."},{"question":"What are the main features of GIFs?","answer":"The main features of GIFs include the ability to support animated sequences, a palette of 256 colors, transparency, lossless compression (using the LZW compression algorithm), and interlacing, which allows an image to start displaying before it is fully loaded."},{"question":"What are the types of Graphics Interchange Format?","answer":"There are two types of Graphics Interchange Format: GIF87a, the original version that supports static images, and GIF89a, the updated version that supports animations and transparency."},{"question":"What are the main uses and limitations of GIFs?","answer":"GIFs are primarily used to display logos, icons, and animated graphics on the web. They are favored for their ability to provide simple animations without requiring a video player. The limitations of GIFs include a 256-color limit, which can lead to images with less color depth, and the absence of audio support, which restricts the complexity of animations."},{"question":"How does the GIF format compare to JPEG and PNG?","answer":"While all three formats support color images, there are some key differences. JPEG supports 24-bit color depth but uses lossy compression and does not support animation. PNG supports 24-bit color depth (+8 bit alpha), uses lossless compression (DEFLATE), and doesn't support animation. On the other hand, GIF supports 8-bit color depth, uses lossless compression (LZW), and uniquely supports animations."},{"question":"How do proxy servers affect the use of GIFs?","answer":"Proxy servers, such as those provided by OneProxy, can enhance the experience of users interacting with GIFs. They provide faster and more reliable access to GIFs by caching them and ensure anonymity and security when browsing GIF hosting sites. This is especially helpful for users in regions where access to certain websites might be restricted or where the internet connection is unreliable."},{"question":"What is the future of the Graphics Interchange Format?","answer":"GIFs continue to be widely used, especially with the emergence of GIF hosting platforms and their integration with social media platforms. However, newer formats like the Animated Portable Network Graphics (APNG) and MPEG-4 Part 14 (MP4) are gradually gaining popularity, offering better compression, higher quality, and additional features like sound."}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/477380","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/477380\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/492978"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=477380"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}