Java图像处理库 Sanselan
fmms
12年前
Sanselan 是一个纯 Java 的图形库，可以读写各种格式的图像文件，包括快速解析图片信息例如大小/颜色/icc以及元数据等。尽管因为是Java开发的，在处理速度上会稍微慢一 些，但具备良好的可移植性。虽然尚未发布1.0 版本，但是已经有多个项目在使用 Sanselan 来处理图像文件。
该项目目前还是 Apache 组织的一个孵化项目。
JavaDoc: http://www.apache.org/dist/incubator/sanselan/javadoc/
示例代码：
File file = someFile; BufferedImage image_3 = Sanselan.getBufferedImage(file); InputStream is = someInputStream; BufferedImage image_4 = Sanselan.getBufferedImage(is); // Write an image. BufferedImage image = someImage; File dst = someFile; ImageFormat format = ImageFormat.IMAGE_FORMAT_PNG; Map optional_params = new Hashtable(); Sanselan.writeImage(image, dst, format, optional_params); OutputStream os = someOutputStream; Sanselan.writeImage(image, os, format, optional_params); // get the image's embedded ICC Profile, if it has one. byte icc_profile_bytes[] = Sanselan.getICCProfileBytes(imageBytes); ICC_Profile icc_profile = Sanselan.getICCProfile(imageBytes); // get the image's width and height. Dimension d = Sanselan.getImageSize(imageBytes); // get all of the image's info (ie. bits per pixel, size, transparency, etc.) ImageInfo image_info = Sanselan.getImageInfo(imageBytes); if (image_info.getColorType() == ImageInfo.COLOR_TYPE_GRAYSCALE) System.out.println("Grayscale image."); if (image_info.getHeight() > 1000) System.out.println("Large image."); // try to guess the image's format. ImageFormat image_format = Sanselan.guessFormat(imageBytes); image_format.equals(ImageFormat.IMAGE_FORMAT_PNG); // get all metadata stored in EXIF format (ie. from JPEG or TIFF). // org.w3c.dom.Node node = Sanselan.getMetadataObsolete(imageBytes); IImageMetadata metdata = Sanselan.getMetadata(imageBytes); // print a dump of information about an image to stdout. Sanselan.dumpImageFile(imageBytes); // get a summary of format errors. FormatCompliance format_compliance = Sanselan .getFormatCompliance(imageBytes);