{"id":8042,"date":"2011-11-02T21:00:48","date_gmt":"2011-11-02T12:00:48","guid":{"rendered":"http:\/\/www.sssg.org\/blogs\/hiro345\/?p=8042"},"modified":"2011-11-29T19:49:07","modified_gmt":"2011-11-29T10:49:07","slug":"java%e3%81%a7image%e3%82%b3%e3%83%94%e3%83%bc","status":"publish","type":"post","link":"https:\/\/www.hiro345.net\/blogs\/hiro345\/archives\/8042.html","title":{"rendered":"Java\u3067Image\u30b3\u30d4\u30fc"},"content":{"rendered":"

Java\u3067Image\u30b3\u30d4\u30fc\u3092\u3057\u305f\u3044\u5834\u5408\u306b\u3001\u30d4\u30af\u30bb\u30eb\u5358\u4f4d\u3067\u4f55\u304b\u51e6\u7406\u3092\u3057\u305f\u3044\u6642\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u3088\u3046\u306a\u6642\u306f\u6b21\u306e\u3088\u3046\u306b\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u51fa\u3057\u3066\u51e6\u7406\u3092\u3059\u308b\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n


\nimage\u306b\u306fImageIO.read\u306a\u3069\u3067\u753b\u50cf\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3093\u3067\u3044\u308b\u3068\u3057\u3066\u3001destImage\u304c\u53c2\u7167\u3059\u308bint[]\u3078\u30d4\u30af\u30bb\u30eb\u60c5\u5831\u3092\u30b3\u30d4\u30fc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

int width  = image.getWidth();\r\nint height = image.getHeight();\r\nint size = width * height;\r\nBufferedImage destImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);\r\nint[] dest = ((DataBufferInt)(destImage.getRaster().getDataBuffer())).getData();\r\nbyte[] src = ((DataBufferByte)(image.getRaster().getDataBuffer())).getData();\r\nint r, g, b, a;\r\nfor(int i=0, j=0;i<size;i++) {\r\n  a = src[j++] & 0xFF;\r\n  r = src[j++] & 0xFF;\r\n  g = src[j++] & 0xFF;\r\n  b = src[j++] & 0xFF;\r\n  dest[i] = (a<<24)|(r<<16)|(g<<8)|b;\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
Java\u3067Image\u30b3\u30d4\u30fc\u3092\u3057\u305f\u3044\u5834\u5408\u306b\u3001\u30d4\u30af\u30bb\u30eb\u5358\u4f4d\u3067\u4f55\u304b\u51e6\u7406\u3092\u3057\u305f\u3044\u6642\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u3088\u3046\u306a\u6642\u306f\u6b21\u306e\u3088\u3046\u306b\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u51fa\u3057\u3066\u51e6\u7406\u3092\u3059\u308b\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[1207,604],"class_list":["post-8042","post","type-post","status-publish","format-standard","hentry","category-java","tag-java","tag-604"],"_links":{"self":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/8042","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/comments?post=8042"}],"version-history":[{"count":5,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/8042\/revisions"}],"predecessor-version":[{"id":8157,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/8042\/revisions\/8157"}],"wp:attachment":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/media?parent=8042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/categories?post=8042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/tags?post=8042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}