{"id":5882,"date":"2013-09-30T15:35:01","date_gmt":"2013-09-30T06:35:01","guid":{"rendered":"http:\/\/www.webtech.co.jp\/blog\/?p=5882"},"modified":"2020-06-16T09:35:45","modified_gmt":"2020-06-16T00:35:45","slug":"post-5882","status":"publish","type":"post","link":"https:\/\/www.webtech.co.jp\/blog\/optpix_labs\/format\/5882\/","title":{"rendered":"ETC\u5727\u7e2e\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306f\uff1f"},"content":{"rendered":"<p>\u5727\u7e2e\u30c6\u30af\u30b9\u30c1\u30e3\u89e3\u8aac\u30b7\u30ea\u30fc\u30ba\u306f\u304a\u3088\u305d4\u304b\u6708\u3076\u308a\u306e\u66f4\u65b0\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3001R&amp;D\u90e8\u306e\u4e0a\u7530\u3067\u3059\u3002<\/p>\n<p>8\u6708\u306b\u306f<a href=\"http:\/\/cedec.cesa.or.jp\/2013\/\" target=\"_blank\" rel=\"noopener noreferrer\">CEDEC2013<\/a>\u306b\u304a\u3044\u3066\u300c<a href=\"http:\/\/cedec.cesa.or.jp\/2013\/program\/VA\/6801.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u5de5\u7a0b\u306e\u624b\u623b\u308a\u3092\u6700\u5c0f\u9650\u306b\u3000\u5727\u7e2e\u30c6\u30af\u30b9\u30c1\u30e3(PVRTC\u30fbDXTC\u30fbETC)\u306b\u304a\u3051\u308b\u50be\u5411\u3068\u5bfe\u7b56<\/a>\u300d\u3068\u3044\u3046\u30bf\u30a4\u30c8\u30eb\u3067\u8b1b\u6f14\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002<br \/>\n\u30b9\u30e9\u30a4\u30c9\u8cc7\u6599\u3092<a href=\"https:\/\/www.webtech.co.jp\/blog\/optpix_labs\/format\/5857\/\">\u5225\u306e\u30da\u30fc\u30b8<\/a>\u306b\u3066\u516c\u958b\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u3054\u8208\u5473\u306e\u3042\u308b\u65b9\u306f\u305c\u3072\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u7b2c4\u56de\u76ee\u306fETC\u5727\u7e2e\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3064\u3044\u3066\u3001\u3067\u3059\u3002<\/p>\n<p><!--more--><\/p>\n<h2>ETC\u3063\u3066\u4f55\uff1f<\/h2>\n<p>\u307e\u305a\u306fETC\u306e\u57fa\u672c\u60c5\u5831\u304b\u3089\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<table>\n<tbody>\n<tr>\n<th>\u6b63\u5f0f\u540d\u79f0<\/th>\n<td>Ericsson Texture Compression<\/td>\n<\/tr>\n<tr>\n<th>\u958b\u767a\u5143<\/th>\n<td>Ericsson Reserch<\/td>\n<\/tr>\n<tr>\n<th>\u5727\u7e2e\u65b9\u5f0f<\/th>\n<td>\u975e\u53ef\u9006\u5727\u7e2e\uff08\u5727\u7e2e\u5f8c\u306e\u753b\u50cf\u306f\u52a3\u5316\u3057\u307e\u3059\uff09<\/td>\n<\/tr>\n<tr>\n<th>\u7279\u8a18\u4e8b\u9805<\/th>\n<td>\u30a2\u30eb\u30d5\u30a1\u30c1\u30e3\u30f3\u30cd\u30eb\u306b\u975e\u5bfe\u5fdc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>ETC\u3063\u3066\u3069\u3093\u306a\u3068\u3053\u308d\u3067\u4f7f\u308f\u308c\u3066\u3044\u308b\u306e\uff1f<\/h3>\n<p>Android\u7aef\u672b\u3067\u306f\u3059\u3079\u3066\u306e\u6a5f\u7a2e\u3067\u5171\u901a\u3057\u3066\u4f7f\u3048\u308b\u5727\u7e2e\u30c6\u30af\u30b9\u30c1\u30e3\u5f62\u5f0f\u3067\u3059\u3002\u307e\u305f\u3001\u4e00\u90e8\u306e\u643a\u5e2f\u578b\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u30b2\u30fc\u30e0\u6a5f\u7b49\u3067\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>ETC\u306e\u5727\u7e2e\u54c1\u8cea\u306f\uff1f<\/h3>\n<p>\u307e\u305a\u306fETC\u3092\u4f7f\u3063\u3066\u753b\u50cf\u3092\u5727\u7e2e\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30b5\u30f3\u30d7\u30eb\u3068\u3057\u306624\u30d3\u30c3\u30c8RGB\u30ab\u30e9\u30fc\u3067\u753b\u50cf\u30b5\u30a4\u30ba\u304c640\u00d7480\u306e\u753b\u50cf\u3092\u7528\u610f\u3057\u307e\u3057\u305f\u3002<br \/>\n\u305d\u308c\u305e\u308c\u306e\u753b\u50cf\u5bb9\u91cf\u306f\u3001\u7121\u5727\u7e2e\u3067921,600\u30d0\u30a4\u30c8\uff08\uff1d640\u00d7480\u00d73\uff09\u3067\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/flower_full.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5887\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/flower_quarter.png\" alt=\"flower_quarter\" width=\"160\" height=\"120\" \/><\/a><a title=\"\" href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/04\/flower_512-256.png\" target=\"\" rel=\"noopener noreferrer\">\u3000<\/a><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/cat_full.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5885\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/cat_quarter.png\" alt=\"cat_quarter\" width=\"160\" height=\"120\" \/><\/a><a title=\"\" href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/04\/renga_512-256.png\" target=\"\" rel=\"noopener noreferrer\">\u3000<\/a><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/renga_full.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5889\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/renga_quarter.png\" alt=\"renga_quarter\" width=\"160\" height=\"120\" \/><\/a><br \/>\n<strong>\u7121\u5727\u7e2e\u306e\u5143\u753b\u50cf(\u5404 921,600 \u30d0\u30a4\u30c8)<\/strong><br \/>\n<span style=\"font-size: 10px;\">\uff08\u30af\u30ea\u30c3\u30af\u3067\u7b49\u500d\u8868\u793a\uff09<\/span><\/p>\n<p>ETC\u3067\u5727\u7e2e\u3057\u305f\u7d50\u679c\u3067\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/flower_full_etc1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5891\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/flower_quarter_etc1.png\" alt=\"flower_quarter_etc1\" width=\"160\" height=\"120\" \/><\/a><a title=\"\" href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/04\/cat_pvrtc4bpp_512-256.png\" target=\"\" rel=\"noopener noreferrer\">\u3000<\/a><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/cat_full_etc1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5893\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/cat_quarter_etc1.png\" alt=\"cat_quarter_etc1\" width=\"160\" height=\"120\" \/><\/a><a title=\"\" href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/04\/cat_pvrtc4bpp_512-256.png\" target=\"\" rel=\"noopener noreferrer\">\u3000<\/a><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/renga_full_etc1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5895\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/renga_quarter_etc1.png\" alt=\"renga_quarter_etc1\" width=\"160\" height=\"120\" \/><\/a><br \/>\n<strong>ETC\u5727\u7e2e\u5f8c\u306e\u753b\u50cf(\u5404 153,600 \u30d0\u30a4\u30c8)<\/strong><br \/>\n<span style=\"font-size: 10px;\">\uff08\u30af\u30ea\u30c3\u30af\u3067\u7b49\u500d\u8868\u793a\uff09<\/span><\/p>\n<p>\u5727\u7e2e\u3059\u308b\u3068\u305d\u308c\u305e\u308c\u306e\u753b\u50cf\u5bb9\u91cf\u306f153,600 \u30d0\u30a4\u30c8 \u3068\u306a\u308a\u3001<strong>\u5727\u7e2e\u524d\u306e6\u5206\u306e1<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\nETC\u306f\u975e\u53ef\u9006\u5727\u7e2e\u3067\u5727\u7e2e\u6642\u306b\u52a3\u5316\u304c\u767a\u751f\u3057\u307e\u3059\u304c\u3001DXTC\u3084PVRTC\u3068\u540c\u69d8\u306b\u5199\u771f\u306e\u3088\u3046\u306a\u753b\u50cf\u306b\u3064\u3044\u3066\u306f\u52a3\u5316\u304c\u307b\u3068\u3093\u3069\u5206\u304b\u3089\u306a\u3044\u3068\u601d\u3044\u307e\u3059\u3002<br \/>\n<span style=\"font-size: 9px;\">\u6ce8\uff09\u30d6\u30ed\u30b0\u5185\u306e\u753b\u50cf\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u3067\u305d\u306e\u307e\u307e\u8868\u793a\u3067\u304d\u308b\u3088\u3046\u306b\u5168\u3066PNG\u5f62\u5f0f\u306b\u5909\u63db\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u4e0a\u8a18\u753b\u50cf\u5bb9\u91cf\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u753b\u50cf\u306b\u3064\u3044\u3066\u3082\u540c\u69d8\u3067\u3059\u3002<\/span><\/p>\n<h3>ETC\u306b\u306f\u82e6\u624b\u306a\u753b\u50cf\u304c\u3042\u308b<\/h3>\n<p>ETC\u306f\u4e0a\u3067\u793a\u3057\u305f\u3088\u3046\u306b\u5199\u771f\u3084\u81ea\u7136\u753b\u306e\u3088\u3046\u306a\u753b\u50cf\u306f\u6bd4\u8f03\u7684\u7dba\u9e97\u306b\u5727\u7e2e\u3067\u304d\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u30a2\u30cb\u30e1\u8abf\u306e\u753b\u50cf\u3067\u306f\u3069\u3046\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f\u3000DXTC\u3084PVRTC\u306e\u6642\u3068\u540c\u3058\u304f\u30a2\u30cb\u30e1\u8abf\u753b\u50cf\u3092ETC\u3067\u5727\u7e2e\u3057\u3066\u307f\u307e\u3059\u3002<br \/>\n\u307e\u305f\u3001\u6bd4\u8f03\u306e\u305f\u3081\u306bDXTC\u3068PVRTC4bpp\u3067\u5727\u7e2e\u3057\u305f\u753b\u50cf\u3082\u4e00\u7dd2\u306b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5896\" title=\"\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_org_d.png\" alt=\"magicgirl_org_d\" width=\"258\" height=\"315\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_org_d.png 258w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_org_d-245x300.png 245w\" sizes=\"auto, (max-width: 258px) 100vw, 258px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5897\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_etc1_d.png\" alt=\"magicgirl_etc1_d\" width=\"258\" height=\"315\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_etc1_d.png 258w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_etc1_d-245x300.png 245w\" sizes=\"auto, (max-width: 258px) 100vw, 258px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5898\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_dxt1_d.png\" alt=\"magicgirl_dxt1_d\" width=\"258\" height=\"315\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_dxt1_d.png 258w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_dxt1_d-245x300.png 245w\" sizes=\"auto, (max-width: 258px) 100vw, 258px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5899\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_pvrtc4bpp_d.png\" alt=\"magicgirl_pvrtc4bpp_d\" width=\"258\" height=\"315\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_pvrtc4bpp_d.png 258w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_pvrtc4bpp_d-245x300.png 245w\" sizes=\"auto, (max-width: 258px) 100vw, 258px\" \/><br \/>\n<strong>ETC\u3001DXTC\u3001PVRTC4bpp\u306b\u3088\u3063\u3066\u305d\u308c\u305e\u308c\u5727\u7e2e\u3057\u305f\u30a2\u30cb\u30e1\u8abf\u753b\u50cf\u306e\u6bd4\u8f03<\/strong><\/p>\n<p>\u753b\u50cf\u306e\u5909\u5316\u304c\u5206\u304b\u308a\u3084\u3059\u3044\u3088\u3046\u306b\u3001\u5c11\u5973\u306e\u982d\u4e0a\u306e\u72ac\u90e8\u5206\u3092\u62e1\u5927\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5900\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_org_part_x4_d.png\" alt=\"magicgirl_org_part_x4_d\" width=\"202\" height=\"258\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5901\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_etc1_part_x4_d.png\" alt=\"magicgirl_etc1_part_x4_d\" width=\"203\" height=\"258\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5902\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_dxt1_part_x4_d.png\" alt=\"magicgirl_dxt1_part_x4_d\" width=\"202\" height=\"258\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5925\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/magicgirl_pvrtc4bpp_part_x4_d1.png\" alt=\"magicgirl_pvrtc4bpp_part_x4_d\" width=\"202\" height=\"258\" \/><br \/>\n<strong>\u72ac\u306e\u90e8\u5206\u3092\u62e1\u5927(4\u500d)\u3057\u3066\u6bd4\u8f03<\/strong><\/p>\n<p>\u62e1\u5927\u3057\u3066\u307f\u308b\u3068\u3001ETC\u5727\u7e2e\u3057\u305f\u753b\u50cf\u306fPVRTC\u3067\u8d77\u3053\u3063\u3066\u3044\u308b\u306b\u3058\u307f\u306e\u3088\u3046\u306a\u52a3\u5316\u3067\u306f\u306a\u304f\u3001DXTC\u306e\u3088\u3046\u306a\u30d6\u30ed\u30c3\u30af\u72b6\u306e\u52a3\u5316\uff08\u30d6\u30ed\u30c3\u30af\u30ce\u30a4\u30ba\uff09\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<br \/>\n\u307e\u305f\u3001DXTC\u3067\u306f\u72ac\u306e\u8f2a\u90ed\u5468\u8fba\u3067\u30d6\u30ed\u30c3\u30af\u30ce\u30a4\u30ba\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u306e\u306b\u5bfe\u3057\u3001ETC\u3067\u306f\u72ac\u306e\u8f2a\u90ed\u5468\u8fba\u3088\u308a\u3082\u80cc\u666f\u306e\u9752\u3068\u9ec4\u8272\u306e\u5883\u76ee\u3067\u30d6\u30ed\u30c3\u30af\u30ce\u30a4\u30ba\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>ETC\u3063\u3066\u3069\u3093\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\uff1f<\/h2>\n<p>\u4e0a\u8a18\u306e\u3088\u3046\u306a\u73fe\u8c61\u304c\u306a\u305c\u8d77\u304d\u308b\u306e\u304b\u3002ETC\u5727\u7e2e\u5f62\u5f0f\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u308f\u304b\u308c\u3070\u3001\u7406\u89e3\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\uff11\uff0e4\u00d74\u30d4\u30af\u30bb\u30eb\u306e\u30d6\u30ed\u30c3\u30af\u3092\u534a\u5206\u306b\u5206\u5272\u3059\u308b<\/h3>\n<p>ETC\u3067\u306f\u30014\u00d74\u30d4\u30af\u30bb\u30eb\u3092\u4e00\u3064\u306e\u30d6\u30ed\u30c3\u30af\u3068\u3057\u3066\u6271\u3044\u307e\u3059\u304c\u3001\u6700\u521d\u306b\u305d\u306e\uff11\u30d6\u30ed\u30c3\u30af\u3092\u3055\u3089\u306b\u534a\u5206\u306b\u5206\u5272\u3057\u307e\u3059\u3002<br \/>\n\u7e26\u3068\u6a2a\u306b\u5206\u5272\u3067\u304d\u308b\u306e\u3067\u3001\u3069\u3061\u3089\u306b\u5206\u5272\u3059\u308b\u304b\u3068\u3044\u3046\u60c5\u5831\u3092Flip Bit\u3068\u3057\u3066\uff11\u30d3\u30c3\u30c8\u3067\u4fdd\u5b58\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<div id=\"attachment_5905\" style=\"width: 533px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm01_org.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5905\" class=\"wp-image-5905 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm01_half.png\" alt=\"etc_algorithm01_half\" width=\"523\" height=\"197\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm01_half.png 523w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm01_half-300x113.png 300w\" sizes=\"auto, (max-width: 523px) 100vw, 523px\" \/><\/a><p id=\"caption-attachment-5905\" class=\"wp-caption-text\">4\u00d74\u30d4\u30af\u30bb\u30eb\u30921\u30d6\u30ed\u30c3\u30af\u3068\u3057\u3001\u3055\u3089\u306b2\u00d74\u30d4\u30af\u30bb\u30eb\u306e\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u306b\u5206\u5272\u3059\u308b<\/p><\/div>\n<h3>\uff12\uff0e\u4ee3\u8868\u8272\u3092\u6c7a\u5b9a\u3059\u308b<\/h3>\n<p>\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u306b\u5206\u5272\u3057\u305f\u3089\u3001\u305d\u308c\u305e\u308c\u306e\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u6bce\u306b\u4ee3\u8868\u8272\u3092\u6c7a\u3081\u307e\u3059\u3002RGB444\u5f62\u5f0f\u3067\u3059\u3002\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\uff11\u3064\u306b\u3064\u3044\u3066\u3001\u4ee3\u8868\u8272\u306f\uff11\u3064\u3060\u3051\u306b\u306a\u308a\u307e\u3059\u3002\u4ee3\u8868\u8272\u306f\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u306b\u7121\u3044\u8272\u3067\u3082\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<div id=\"attachment_5906\" style=\"width: 429px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm02_org.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5906\" class=\"wp-image-5906 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm02_half.png\" alt=\"etc_algorithm02_half\" width=\"419\" height=\"174\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm02_half.png 419w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm02_half-300x124.png 300w\" sizes=\"auto, (max-width: 419px) 100vw, 419px\" \/><\/a><p id=\"caption-attachment-5906\" class=\"wp-caption-text\">\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u3054\u3068\u306b\u305d\u308c\u305e\u308c1\u8272\u306e\u4ee3\u8868\u8272\u3092\u6c7a\u5b9a\u3059\u308b<\/p><\/div>\n<h3>\uff13\uff0e\u4ee3\u8868\u8272\u304b\u3089\u88dc\u9593\u82724\u8272\u3092\u4f5c\u308b<\/h3>\n<p>\u6b21\u306b\u3001\u4ee3\u8868\u8272\u304b\u3089\u88dc\u9593\u8272\u30924\u8272\u4f5c\u308a\u51fa\u3057\u307e\u3059\u3002\u3053\u306e4\u8272\u306e\u4f5c\u308a\u65b9\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u8f1d\u5ea6\u306e\u5909\u63db\u30c6\u30fc\u30d6\u30ebNo.0\uff5eNo.7\u306e\u4e2d\u304b\u3089\u4e00\u3064\u3092\u9078\u3076\u3068\u3044\u3046\u5f62\u5f0f\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<div id=\"attachment_5908\" style=\"width: 468px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm03_org.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5908\" class=\"wp-image-5908 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm03_half.png\" alt=\"etc_algorithm03_half\" width=\"458\" height=\"313\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm03_half.png 458w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm03_half-300x205.png 300w\" sizes=\"auto, (max-width: 458px) 100vw, 458px\" \/><\/a><p id=\"caption-attachment-5908\" class=\"wp-caption-text\">\u8f1d\u5ea6\u306e\u5909\u63db\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u4e00\u3064\u3092\u9078\u629e\u3059\u308b<\/p><\/div>\n<p>\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u306f\u5b8c\u5168\u306b\u56fa\u5b9a\u3055\u308c\u3066\u3044\u3066\u3001\u6570\u5024\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u6570\u5024\u3092\u3001\u4ee3\u8868\u8272\u306eRGB\u5024\u305d\u308c\u305e\u308c\u306b\u5bfe\u3057\u3066\u52a0\u7b97\u3059\u308b\u3053\u3068\u3067\u88dc\u9593\u8272\u3092\u4f5c\u308a\u307e\u3059\u3002\u3053\u306e\u6642\u3001\u3082\u30570\u4ee5\u4e0b\u3084256\u4ee5\u4e0a\u306e\u6570\u5024\u306b\u306a\u3063\u305f\u30890\u3068255\u306b\u3057\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306e\u4f8b\u3067\u306f\u3001No7\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<h3>\uff14\uff0e\u88dc\u9593\u8272\u3092\u4f7f\u3063\u3066\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u5185\u306e\u8272\u3092\u7f6e\u304d\u63db\u3048\u308b<\/h3>\n<p>\u4ee3\u8868\u8272\u3068\u5909\u63db\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u3063\u3066\u88dc\u9593\u8272\u30924\u8272\u4f5c\u3063\u305f\u3089\u3001\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u5185\u306e\u30d4\u30af\u30bb\u30eb\u3092\u7f6e\u304d\u63db\u3048\u3066\u3001\u305d\u308c\u305e\u308c\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u3064\u3051\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<div id=\"attachment_5910\" style=\"width: 423px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm04_org.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5910\" class=\"wp-image-5910 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm04_half.png\" alt=\"etc_algorithm04_half\" width=\"413\" height=\"159\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm04_half.png 413w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm04_half-300x115.png 300w\" sizes=\"auto, (max-width: 413px) 100vw, 413px\" \/><\/a><p id=\"caption-attachment-5910\" class=\"wp-caption-text\">\u88dc\u9593\u8272\u3092\u4f5c\u308a\u3001\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u5185\u306e\u30d4\u30af\u30bb\u30eb\u3092\u7f6e\u304d\u63db\u3048\u308b<\/p><\/div>\n<h3>\uff15\uff0e\u5b8c\u6210\uff01<\/h3>\n<p>\u3053\u3046\u3057\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u306b\u3064\u3044\u3066\u4ee3\u8868\u8272\u3068\u5909\u63db\u30c6\u30fc\u30d6\u30eb\u306e\u7a2e\u985e\u3092\u8868\u30593\u30d3\u30c3\u30c8\u3068\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e16\u30d3\u30c3\u30c8\u3067\u8868\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u3068Flip Bit\u3001Diff Bit\u3092\u5408\u308f\u305b\u308b\u30681\u30d6\u30ed\u30c3\u30af\u3042\u305f\u308a64\u30d3\u30c3\u30c8\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\u3092\u3082\u3068\u306b\u30d6\u30ed\u30c3\u30af\u3092\u5fa9\u5143\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<div id=\"attachment_5912\" style=\"width: 474px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm05_org.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5912\" class=\"wp-image-5912 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm05_half.png\" alt=\"etc_algorithm05_half\" width=\"464\" height=\"308\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm05_half.png 464w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm05_half-300x199.png 300w\" sizes=\"auto, (max-width: 464px) 100vw, 464px\" \/><\/a><p id=\"caption-attachment-5912\" class=\"wp-caption-text\">ETC\u5727\u7e2e\u5f62\u5f0f\u3067\u306e1\u30d6\u30ed\u30c3\u30af\u306e\u30c7\u30fc\u30bf\u69cb\u9020<\/p><\/div>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u306b\u5206\u5272\u3057\u3066\u5727\u7e2e\u3059\u308b\u3053\u3068\u304cETC\u306e\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<p>\u304a\u304a\u307e\u304b\u306b\u8a00\u3063\u3066\u3001\u4ee3\u8868\u8272\u306b\u6975\u7aef\u306a\u8272\u3092\u9078\u3070\u306a\u3044\u9650\u308a\u3001\u30c6\u30fc\u30d6\u30ebNo.7\u3092\u9078\u3079\u3070\u88dc\u9593\u8272\u3067\u9ed2(\u306b\u8fd1\u3044\u8272)\u3068\u767d(\u306b\u8fd1\u3044\u8272)\u3092\u9078\u3076\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u3001ETC\u306f\u767d\u3084\u9ed2\u306e\u8f2a\u90ed\u7dda\u3092\u4f7f\u3046\u753b\u50cf\u306b\u5f37\u3044\u3001\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<h3>\uff16\uff0eDiff Bit\u306e\u5f79\u5272<\/h3>\n<p>\u6700\u5f8c\u306b\u3001\u524d\u306e\u56f3\u3067\u3055\u3089\u3063\u3068\u89e6\u308c\u3066\u3044\u308bDiff Bit\u306e\u5f79\u5272\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002Diff Bit\u306f\u4ee3\u8868\u8272\u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u30e2\u30fc\u30c9\u3092\u6c7a\u3081\u308b\u5f79\u5272\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<div id=\"attachment_5914\" style=\"width: 440px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm06_org.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5914\" class=\"wp-image-5914 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm06_half.png\" alt=\"etc_algorithm06_half\" width=\"430\" height=\"318\" srcset=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm06_half.png 430w, https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm06_half-300x221.png 300w\" sizes=\"auto, (max-width: 430px) 100vw, 430px\" \/><\/a><p id=\"caption-attachment-5914\" class=\"wp-caption-text\">Diff Bit\u306b\u3088\u308b\u4ee3\u8868\u8272\u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u65b9\u6cd5\u306e\u9055\u3044<\/p><\/div>\n<p>Diff Bit\u304c0\u306e\u6642\u306f\u30012\u3067\u89e3\u8aac\u3057\u3066\u3044\u308b\u3088\u3046\u306bRGB444\u3067\u3042\u308b\u4ee3\u8868\u8272\u3092\u305d\u308c\u305e\u308c\u306e\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u306b\u3064\u3044\u3066\u72ec\u7acb\u3057\u3066\u4fdd\u5b58\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u3057\u3066Diff Bit\u304c1\u306e\u6642\u306f\u3001\u7247\u65b9\u306e\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u304cRGB555\u306e\u4ee3\u8868\u8272\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u3082\u3046\u4e00\u3064\u306e\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u306e\u4ee3\u8868\u8272\u306f\u3001\u4e00\u3064\u76ee\u306e\u4ee3\u8868\u8272\u304b\u3089RGB\u305d\u308c\u305e\u308c3\u30d3\u30c3\u30c8\u306e\u5dee\u5206\u5024\uff08\u3064\u307e\u308a-4\uff5e+3\uff09\u3092\u4f7f\u3063\u3066\u6c7a\u5b9a\u3057\u3001\u3053\u306e\u5dee\u5206\u5024\u3092\u4fdd\u5b58\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<h2>ETC\u3067\u30a2\u30cb\u30e1\u8abf\u306e\u7d75\u304c\u52a3\u5316\u3059\u308b\u539f\u56e0\u3092\u8003\u3048\u308b<\/h2>\n<p>\u305d\u308c\u3067\u306f\u6b21\u306e\u3088\u3046\u306a\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u306b\u3064\u3044\u3066ETC\u5727\u7e2e\u3059\u308b\u3053\u3068\u3092\u8003\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n<div id=\"attachment_5916\" style=\"width: 75px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm07_org.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5916\" class=\"wp-image-5916 size-full\" src=\"https:\/\/www.webtech.co.jp\/blog\/wp-content\/uploads\/2013\/09\/etc_algorithm07_half.png\" alt=\"etc_algorithm07_half\" width=\"65\" height=\"129\" \/><\/a><p id=\"caption-attachment-5916\" class=\"wp-caption-text\">ETC\u304c\u82e6\u624b\u3068\u3059\u308b\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u306e\u4f8b<\/p><\/div>\n<p>\u3053\u306e\u3068\u304d\u3001\u8336\u8272\u3068\u9752\u8272\u306e\u4e8c\u3064\u306e\u8272\u3092\u8868\u73fe\u3067\u304d\u308b\u3088\u3046\u306a\u4ee3\u8868\u8272\u3068\u8f1d\u5ea6\u30c6\u30fc\u30d6\u30eb\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u8003\u3048\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u304c\u3001\u305d\u306e\u3088\u3046\u306a\u7d44\u307f\u5408\u308f\u305b\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u3053\u306e\u30b5\u30d6\u30d6\u30ed\u30c3\u30af\u3092ETC\u5727\u7e2e\u3059\u308b\u3068\u3059\u3079\u3066\u306e\u30d6\u30ed\u30c3\u30af\u304c\u7070\u8272\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<div id=\"attachment_5919\" style=\"width: 298px\" class=\"wp-caption aligncenter\"><a 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