éèªã®æå³
æ¦è¦
ç§ã¯éèªããã¨ããé«éã ã¨äºåãåï¼åãæé«éã ã¨ä¸ä¸ãåï¼åãããã®ãã¼ã¹ã§èªã*1ãããã¾ã§ç§ã®ä½é¨ã ãããã®ä½é¨ãããéèªã«é¢ãã誤解ã解ãã
éèªã¯ãéãèªãã代ããã«æ·±ãèªããªããã ããéèªã¯ãã¬ã¼ããªããçãã¦ããããã§ãæå³ãããã®ã ãããã¦ãéèªã®éç¨ãæè¡ã«é¢ããå¤è¦³ãçºããç²¾èªã¨ã®ä½µç¨ã¾ã§è¦éã«å ¥ãããã
éèªã®èª¤è§£
ã¾ãéèªã¯ãé ã®è¯ãæªãã¨ã¯å¥ã ãç解åãæèåã¨ã¯å¥ã ãæ å ±ãå ¥åããé¨åã®æè¡ãªã®ã§ãå¦çãåºåã¾ã§åä¸ããããã§ã¯ãªããåç·ã®éãã¨CPUã®éãã¯å¥ç©ã ã
ãããã¯ãããããããå¯ç£ç©ãããã®ãããããªãããéå°ã«æå¾ ããã°ç¢ºå®ã«å¤±æããã ããã端çã«ãéèªãã§ãã¦ããè±èªãã§ããªããã°è±èªã®æ¬ã¯èªããªãããæ°å¦ãã§ããªããã°æ°å¦ã®æ¬ã¯èªããªãã
ããããããç¨åº¦ã¯ã©ããã¦ããéã¨è³ªã®ãã¬ã¼ããªããçãããé常ã«é«éã«èªãã§ããã¨ãã¯ãç´°ããé¨åã¾ã§æ·±ãç解ã§ããªããããã¯ãå¹ åªå ã¨æ·±ãåªå ã¨ã®ãæ å ±æ¢ç´¢ã®éãã¨ããããæ·±ããç¡è¦ãã¦ããããéãã¨ããé¢ãããã®ã§ãä»æ§ããªãã
ããã¯å©ããã°ãèªåè»ã®ã®ã¢ã¯ãã¨ã³ã¸ã³æ§è½ãä¸ããã®ã§ã¯ãªãã¦ãã¿ã¤ã¤ã«ä¼ããå転æ°ãå¤æãããã¨ãããã¨ã ãå¹³å¦ãªéã¯ã®ã¢ã§å éã§ããããåéãä¸ããã¨ãã«ãã«ã¯è² ããããç»ããªãã
åæ§ã«ãéèªã§é ã®å転ã¾ã§éããªãããæ°ããåéã®æ¬ãèªãã¨ãã¯ãçµå±ã¯é ããªããåãä¸ããã¨ããã¯ã¼ãå¿ è¦ãªããã«ãé£è§£ãªæ¦å¿µãç解ããã®ã«ã¯æéãæããããã¡ãããç解ã§ããªããã¨ããããããªãã ãããããæå³ãªãããããã¨æããããããªãã
éèªã®æå³
ããããéèªã質ã¨éã®ãã¬ã¼ããªãã®é¢ä¿ã«ãªã£ã¦ãã¦ããå åæå³ã¯ãããç¾ä»£ã¯æ å ±éå¤ãªã®ã§ããä¸éãã¯ç®ãéãããæ¸ç±ããå±±ã®ããã«ç©ã¾ãã¦ããããã ããããããããã®æ å ±ã¯ããã«çç³æ··æ·ãªã®ã§ãé«éã§ãµã¼ããã¦çã ãæ¾ãããå ´é¢ãããããããã ããã
ã¤ã¾ãããããããã¨ã ãç»åãJPEGã§å§ç¸®ããã¨ãæ å ±ã失ããã¦ãã¾ãããããã§ã容éãå§ç¸®ãããã¨ã«æå³ã¯ãããä¸è¦§ãããã¨ãã¯ãµã ãã¤ã«ãä½ãã ããããããã¯ãPCã§ãã¼ããã£ã¹ã¯ã«æ¯ã¹ã¦ã¡ã¢ãªããã£ãã·ã¥ã®å®¹éã¯å°ãªãããé«éã«ã¢ã¯ã»ã¹ãããã¨ã«æå³ãããã ããã
éèªã®éç¨
ã ãããéèªã¯éç¨ã¾ã§èæ ®ããã¨ããåäºåãªå¹æãçºæ®ãããä½ã§ãããã§ãéãèªãå¿ è¦ã¯ãªããéè¦åº¦ãé«ãæ¬ããã£ããèªãããã®æéãæ»åºããããã«ãéè¦åº¦ãä½ãæ¬ãéãèªãã®ã§ãããèªã価å¤ãäºå²å «å²ã§åå¸ãã¦ããå ´åãã¹ãã¼ãã®ã³ã³ããã¼ã«ã«æå³ãããã®ã ã
èªåã®åºæºã§å¤§éæã«åããã¨ããå¦ã¶ããã¨ãå¿ è¦ãªåéã¯æ®éã«èªããããç¥ããã ãã§ããåéã¯éãèªããç¹ã«ãä½åãç¹°ãè¿ãã¦åºã¦ããæ¢ç¥ã®æ å ±ã«å¯¾ãã¦å¹æçã ãæé©åã¯ã大éã«ã«ã¼ãããé¨åãé«éåããã®ãå®ç³ã ããã
ããã§ããããã§ã¯ãå¾æ¥ãããããé£ã°ãèªã¿ã»æ¾ãèªã¿ã»æãèªã¿ãªã©ã¨ãåãã§ã¯ï¼ãã¨æããããããªããã ããéèªã¯é£ã°ãã¦èªã¾ãªãã®ã§ãé«éã§ãå®å®ãããå ·ä½çã«ã©ã®ããã«èªãã®ãè¦ã¦ã¿ããã
éèªã®æè¡
éèªã¯ãç¹ããç·ãç·ããé¢ã§èªãã¹ã¿ã¤ã«ãç®æããããã¯ãåããè¡ãè¡ããé ã§èªãã¹ã¿ã¤ã«ã«ã»ããªããªããé¨åãç©ã¿ä¸ãã¦å ¨ä½ã«è³ãã®ã§ã¯ãªããå ã«å ¨ä½ãè¦ã¦é¨åã«å解ããããã®ããã«ãå ¨ä½ãç»åçã«è¦ããã¨ãã£ãè¨ç·´ãããã
èªè»¢è»ã«ä¹ããããªãã®ã§ãæèçã«ãã¦ããããã§ã¯ãªãã®ã ãããªãéããªããã¨ããã¨ãããããªãæå³ãçµåãã大éã«æé¤ãã¦ããã¿ã¼ã³èªèã§èªãããã ã¨èãã¦ããããã¿ã¼ã³ã ããå¾®å¦ãªå¤åã¯åãæ¨ã¦ã¦ãã¾ãã
å°ãå¥ã®è¦ç¹ããè¦ãã¨ãä¾ãã°ææ¸ãã®åã¯ãæ´»åã®ããã«ãã¿ã¼ã³åãã¦ããªãã®ã§ãä¸åãã¤è¿½ãå¿ è¦ããããéãèªããªããã¾ããä¸ã¤ã®åããã£ã¨è¦ã¤ãã¦ããã¨ãã²ã·ã¥ã¿ã«ãå´©å£ãã¦ãæå³ãä½ãªã®ãåãããªããªãã
ç²¾èªã®ä½µç¨
ãã®ããã«ä½¿ãåããã®ã§ãéèªã«ãã£ã¦ãç²¾èªã®å¿ è¦æ§ããªããªãããã§ã¯å ¨ããªãã誤èªãè´å½çã«ãªãå ´åï¼æä½ãééããã¨æ©æ¢°ãå£ããã ã¨ãï¼ã¯ããã¯ãä¸å¯§ã«èªãå¿ è¦ããããããã¯æªè·¯ãèµ°ãå ´åã¯ãã¹ãã¼ãããã¹ãã³ããªãæ¹ãéè¦ã ã¨ãããããªãã¨ã ããã
ãããã¯ãç¬ç¹ã®ã¬ããªãã¯ãç¨ããä¸åä¸å¥ã«æ·±ãæå³ããããããªãæå¦çä½åãªã©ã¯ãããããéãèªãã§ãæå³ããªããé¢ç½ãä½åã®é¢ç½ãé¨åãèªãã¨ãã¯ããã®ãããä½éã«ãªãã観å å°ã«çããããé«éãéãã¦æ¯è²ãçºãããã¨ãã£ããã¨ã ããã
ç§ã¯å¹³åããã¨ä¸åä¸æéããããå 容ãèãæ¬ã¯30å*2ã§ä¸åèªãã§ãã¾ããããã®ä¸æ¹ã§ãå°éæ¸ã¯æéãæãã¦ãã£ããèªã*3ãã¾ãåã®é ã«æ»ã£ã¦ç¹°ãè¿ãèªããã¨ããããéãè»ã«ã¯ããã¯ã®ã¢ã¯ä¸è¦ãã¨ãããã¨ããªãã ãããããã§ã¯è»åº«å ¥ãããã¨ãã«å¤§å¤å°ãã
çµè«
éèªã¯éãèªä½ã«ä¾¡å¤ãããã¨ããããããéè¦åº¦ãä½ãæ¬ã»é ãé«éã§èªããã¨ã§ãéè¦åº¦ãé«ãæ¬ã»é ã«æéãåããã¨ãã§ãããã¨ããã¨ããã«ä¾¡å¤ãããã¨èãã¦ããã
é¢é£è¨äº
é¢é£åå
*1:ãã以ä¸ã®éãã§ãèªããããæèã®ãã«ã¯ã«ã¼ãããããã¾ãå¹ççã§ãªãã®ã§ããªã
*2:æ¬å½ã«ãã£ã¨èªãã¨ãã¯5åç¨åº¦ã§èªãå ´åãããããããã ã¨ç´°é¨ãã»ã¨ãã©è¨æ¶ã«æ®ããªã
*3:å¾è ã®æ¹ãåªãã¦ããã¨ã¯éããªããæéã¯æéãªã®ã§ãæææéãçãã®ã¯å©ç¹ã§ããã