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The document describes TOFU (Tofu on the Fly), a system for dynamically generating and caching image thumbnails on Amazon S3. It works by installing an Apache module that generates thumbnails using ImageMagick when images are requested, then caches them on S3 for future requests. This avoids hitting application servers for every image and provides scalability. The document discusses the TOFU archi
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ã“ã‚“ã«ã¡ã¯ï¼ã“ã‚“ã«ã¡ã¯ï¼ 開発部ã®ã‚„ã¾ã—ーã§ã™ã€‚ 今回ã¯SmallLightã®ä¸ã§ã‚„ã£ã¦ã„ã‚‹ç´°ã‹ã„ã“ã¨ã«ã¤ã„ã¦ã§ã™ã€‚ SmallLightã¨ã¯ SmallLightã¨ã¯ã€2010年末ã«livedoor labs EDGEã«ã¦ãƒªãƒªãƒ¼ã‚¹ã—ãŸç”»åƒã‚µãƒ ãƒã‚¤ãƒ«ç”Ÿæˆç”¨Apacheモジュールã§ã™ã€‚ JPEGç”»åƒã®èªã¿è¾¼ã¿å‡¦ç†ã®æœ€é©åŒ– JPEGç”»åƒã¯ã€ãã®åœ§ç¸®ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã®ç‰¹æ€§ã§èªã¿è¾¼ã¿æ™‚ã«1/2ã€1/4ã€1/8ã«ãƒ€ã‚¦ãƒ³ã‚¹ã‚±ãƒ¼ãƒªãƒ³ã‚°ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚libjpegã§ã¯ç”»åƒèªã¿è¾¼ã¿æ™‚ã«jpeg_decompress_structæ§‹é€ ä½“ã®scale_denomã«ãƒ€ã‚¦ãƒ³ã‚¹ã‚±ãƒ¼ãƒªãƒ³ã‚°æŒ‡æ•°ã‚’指定ã—ã¾ã™ã€‚ SmallLightã§ã¯ã“れをJPEGヒントオプションã¨ã—ã¦å®Ÿè£…ã—ã¦ã„ã¾ã™ã€‚パターン文å—列㫠jpeghint=y を付与ã™ã‚‹ã“ã¨ã§æœ‰åŠ¹ã«ãªã‚Šã¾ã™ã€‚（SmallLightã® README ã®100行目） JPEG
Imlib2: Imlib2 Library Documentation
Version:1.1.1 Author:Carsten Haitzler <[email protected]> Date:1999-2004 What is Imlib2 ? Imlib 2 is the successor to Imlib. It is NOT a newer version - it is a completely new library. Imlib 2 can be installed alongside Imlib 1.x without any problems since they are effectively different libraries - BUT they Have very similar functionality. Imlib 2 does the following: Load image files from disk
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