欢迎进入Java社区论坛，与200万技术人员互动交流 >>进入 5、水印 [java] view plaincopyprint? //watermark(位置，水印图，透明度) Thumbnails.of("images/a380_1280x1024.jpg") .size(1280,1024) .watermark(Positions.BOTTOM_RIGHT,ImageIO.read(newFile("

欢迎进入Java社区论坛，与200万技术人员互动交流 >>进入

5、水印

[java] view plaincopyprint?

//watermark(位置，水印图，透明度)

Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.watermark(Positions.BOTTOM_RIGHT,ImageIO.read(newFile("images/watermark.png")),0.5f)

.outputQuality(0.8f)

.toFile("c:/a380_watermark_bottom_right.jpg");

Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.watermark(Positions.CENTER,ImageIO.read(newFile("images/watermark.png")),0.5f)

.outputQuality(0.8f)

.toFile("c:/a380_watermark_center.jpg");

//watermark(位置，水印图，透明度)

Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.watermark(Positions.BOTTOM_RIGHT,ImageIO.read(newFile("images/watermark.png")),0.5f)

.outputQuality(0.8f)

.toFile("c:/a380_watermark_bottom_right.jpg");

Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.watermark(Positions.CENTER,ImageIO.read(newFile("images/watermark.png")),0.5f)

.outputQuality(0.8f)

.toFile("c:/a380_watermark_center.jpg");

6、裁剪

[java] view plaincopyprint?

//sourceRegion()

//图片中心400*400的区域

Thumbnails.of("images/a380_1280x1024.jpg")

.sourceRegion(Positions.CENTER,400,400)

.size(200,200)

.keepAspectRatio(false)

.toFile("c:/a380_region_center.jpg");

//图片右下400*400的区域

Thumbnails.of("images/a380_1280x1024.jpg")

.sourceRegion(Positions.BOTTOM_RIGHT,400,400)

.size(200,200)

.keepAspectRatio(false)

.toFile("c:/a380_region_bootom_right.jpg");

//指定坐标

Thumbnails.of("images/a380_1280x1024.jpg")

.sourceRegion(600,500,400,400)

.size(200,200)

.keepAspectRatio(false)

.toFile("c:/a380_region_coord.jpg");

//sourceRegion()

//图片中心400*400的区域

Thumbnails.of("images/a380_1280x1024.jpg")

.sourceRegion(Positions.CENTER,400,400)

.size(200,200)

.keepAspectRatio(false)

.toFile("c:/a380_region_center.jpg");

//图片右下400*400的区域

Thumbnails.of("images/a380_1280x1024.jpg")

.sourceRegion(Positions.BOTTOM_RIGHT,400,400)

.size(200,200)

.keepAspectRatio(false)

.toFile("c:/a380_region_bootom_right.jpg");

//指定坐标

Thumbnails.of("images/a380_1280x1024.jpg")

.sourceRegion(600,500,400,400)

.size(200,200)

.keepAspectRatio(false)

.toFile("c:/a380_region_coord.jpg");

7、转化图像格式

[java] view plaincopyprint?

//outputFormat(图像格式)

Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.outputFormat("png")

.toFile("c:/a380_1280x1024.png");

Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.outputFormat("gif")

.toFile("c:/a380_1280x1024.gif");

//outputFormat(图像格式)

Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.outputFormat("png")

.toFile("c:/a380_1280x1024.png");

Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.outputFormat("gif")

.toFile("c:/a380_1280x1024.gif");

8、输出到OutputStream

[java] view plaincopyprint?

//toOutputStream(流对象)

OutputStreamos=newFileOutputStream("c:/a380_1280x1024_OutputStream.png");

Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.toOutputStream(os);

//toOutputStream(流对象)

OutputStreamos=newFileOutputStream("c:/a380_1280x1024_OutputStream.png");

Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.toOutputStream(os);

9、输出到BufferedImage

[java] view plaincopyprint?

//asBufferedImage()返回BufferedImage

BufferedImagethumbnail=Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.asBufferedImage();

ImageIO.write(thumbnail,"jpg",newFile("c:/a380_1280x1024_BufferedImage.jpg"));

//asBufferedImage()返回BufferedImage

BufferedImagethumbnail=Thumbnails.of("images/a380_1280x1024.jpg")

.size(1280,1024)

.asBufferedImage();

ImageIO.write(thumbnail,"jpg",newFile("c:/a380_1280x1024_BufferedImage.jpg"));

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