net.coobird.thumbnailator.Thumbnails.of()方法的使用及代码示例

x33g5p2x  于2022-01-30 转载在 其他  
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本文整理了Java中net.coobird.thumbnailator.Thumbnails.of()方法的一些代码示例，展示了Thumbnails.of()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Thumbnails.of()方法的具体详情如下：
包路径：net.coobird.thumbnailator.Thumbnails
类名称：Thumbnails
方法名：of

Thumbnails.of介绍

[英]Indicate to make thumbnails from the specified BufferedImages.
[中]指示从指定的BuffereImage生成缩略图。

代码示例

代码示例来源：origin: coobird/thumbnailator

Thumbnails.of(inFile)
  .size(width, height)
  .toFile(outFile);

代码示例来源：origin: coobird/thumbnailator

/**
 * Creates a thumbnail from an image file, and returns as a
 * {@link BufferedImage}.
 * 
 * @param f                The {@link File} from which image data is read.
 * @param width            The width of the thumbnail.
 * @param height        The height of the thumbnail.
 * @return                The thumbnail image as a {@link BufferedImage}.
 * @throws IOException    Thrown when a problem occurs when reading from
 *                         {@code File} representing an image file.
 */
public static BufferedImage createThumbnail(
    File f,
    int width,
    int height
) throws IOException
{
  validateDimensions(width, height);
  
  if (f == null)
  {
    throw new NullPointerException("Input file is null.");
  }
  
  return Thumbnails.of(f).size(width, height).asBufferedImage();
}

代码示例来源：origin: coobird/thumbnailator

Thumbnails.of(is)
  .size(width, height)
  .outputFormat(format)

代码示例来源：origin: sanluan/PublicCMS

public void thumb(String sourceFilePath, String thumbFilePath, Integer width, Integer height) throws IOException {
  try (FileOutputStream outputStream = new FileOutputStream(thumbFilePath);) {
    Thumbnails.of(sourceFilePath).size(width, height).toOutputStream(outputStream);
  }
}

代码示例来源：origin: sanluan/PublicCMS

public void thumb(String sourceFilePath, String thumbFilePath, Integer width, Integer height) throws IOException {
  try (FileOutputStream outputStream = new FileOutputStream(thumbFilePath);) {
    Thumbnails.of(sourceFilePath).size(width, height).toOutputStream(outputStream);
  }
}

代码示例来源：origin: winterDroid/android-drawable-importer-intellij-plugin

private static BufferedImage resizeNormalImage(BufferedImage image,
                        ImageInformation information) throws IOException {
  int newWidth = image.getWidth();
  int newHeight = image.getHeight();
  if (MathUtils.floatEquals(information.getFactor(), 1f)) {
    return image;
  }
  if (information.getFactor() >= 0) {
    newWidth = (int) (newWidth * information.getFactor());
    newHeight = (int) (newHeight * information.getFactor());
  }
  BufferedImage resizedImage = null;
  switch (information.getAlgorithm()) {
    case SCALR:
      Scalr.Method scalrMethod = (Scalr.Method) information.getMethod();
      resizedImage = Scalr.resize(image, scalrMethod, newWidth, newHeight, Scalr.OP_ANTIALIAS);
      break;
    case THUMBNAILATOR:
      return Thumbnails.of(image)
               .size(newWidth, newHeight)
               .asBufferedImage();
  }
  return resizedImage;
}

代码示例来源：origin: jmrozanec/pdf-converter

private void persistImage(BufferedImage image, int width, int height, File output) throws IOException {
    System.out.println(output);
    output.getParentFile().mkdirs();
    ImageIO.write(Thumbnails.of(image).size(width, height).asBufferedImage(), FilenameUtils.getExtension(output.getAbsolutePath()), output);
  }
}

代码示例来源：origin: youngMen1/JAVA-

/**
 * 根据比例缩放图片
 * 
 * @param orgImgFile 源图片路径
 * @param scale 比例
 * @param targetFile 缩放后的图片存放路径
 * @throws IOException
 */
public static final void scale(BufferedImage orgImg, double scale, String targetFile) throws IOException {
  Thumbnails.of(orgImg).scale(scale).toFile(targetFile);
}

代码示例来源：origin: patrickfav/uber-adb-tools

private static File downscaleIfNeeded(File localTempFile, Arg arg) {
  if (localTempFile.exists() && localTempFile.isFile() && FileUtil.getFileExtension(localTempFile).equalsIgnoreCase("png") && localTempFile.length() > MAX_IMG_BYTE_SIZE) {
    try {
      while (localTempFile.length() > MAX_IMG_BYTE_SIZE) {
        Thumbnails.of(localTempFile).allowOverwrite(true).scale(0.5).toFile(localTempFile);
      }
      Commons.log("\tdownscaling screenshot", arg);
    } catch (IOException e) {
      throw new IllegalStateException("could not resize screenshot", e);
    }
  }
  return localTempFile;
}

代码示例来源：origin: tobato/FastDFS_Client

/**
 * 根据传入比例生成缩略图
 *
 * @param inputStream
 * @param thumbImage
 * @return
 * @throws IOException
 */
private ByteArrayInputStream generateThumbImageByPercent(InputStream inputStream,
                             ThumbImage thumbImage) throws IOException {
  LOGGER.debug("根据传入比例生成缩略图");
  // 在内存当中生成缩略图
  ByteArrayOutputStream out = new ByteArrayOutputStream();
  //@formatter:off
  Thumbnails
      .of(inputStream)
      .scale(thumbImage.getPercent())
      .toOutputStream(out);
  //@formatter:on
  return new ByteArrayInputStream(out.toByteArray());
}

代码示例来源：origin: 94fzb/zrlog

public static byte[] jpeg(byte[] buf, float quality) throws IOException {
    ByteArrayInputStream bain = new ByteArrayInputStream(buf);
    ByteArrayOutputStream baout = new ByteArrayOutputStream();
    Thumbnails.of(bain).outputQuality(quality).rendering(Rendering.SPEED).width(660).toOutputStream(baout);
    return baout.toByteArray();
  }
}

代码示例来源：origin: youngMen1/JAVA-

public static final void scale(String orgImgFile, double scale, String targetFile) throws IOException {
  Thumbnails.of(orgImgFile).scale(scale).toFile(targetFile);
}

代码示例来源：origin: youngMen1/JAVA-

/**
 * * 转换图片大小，不变形
 * 
 * @param img 图片文件
 * @param width 图片宽
 * @param height 图片高
 */
public static final void changeImge(File img, int width, int height) {
  try {
    Thumbnails.of(img).size(width, height).keepAspectRatio(false).toFile(img);
  } catch (IOException e) {
    e.printStackTrace();
    throw new IllegalStateException("图片转换出错！", e);
  }
}

代码示例来源：origin: Cool-Coding/remote-desktop-control

/**
 * 字节数组转化为图像
 * @param data
 *          字节数组
 * @return
 *           图像
 */
public static BufferedImage getImageFromByteArray(byte[] data){
  try {
    final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(data);
    return Thumbnails.of(byteArrayInputStream).scale(1f).outputFormat("jpg").asBufferedImage();
  }catch (IOException e){
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: tobato/FastDFS_Client

/**
 * 获取缩略图
 *
 * @param inputStream
 * @return
 * @throws IOException
 */
private ByteArrayInputStream generateThumbImageByDefault(InputStream inputStream) throws IOException {
  LOGGER.debug("根据默认配置生成缩略图");
  // 在内存当中生成缩略图
  ByteArrayOutputStream out = new ByteArrayOutputStream();
  //@formatter:off
  Thumbnails
      .of(inputStream)
      .size(thumbImageConfig.getWidth(), thumbImageConfig.getHeight())
      .toOutputStream(out);
  //@formatter:on
  return new ByteArrayInputStream(out.toByteArray());
}

代码示例来源：origin: landy8530/netty-file-parent

/**
 * 利用Thumbnailator生成缩略图
 * 
 * @author liuyuanxian
 */
public void createThumbImage() {
  //asBufferedImage() 返回BufferedImage
  try {
    BufferedImage thumbnail = Thumbnails.of(inPutFile) 
        .size(width, height).keepAspectRatio(proportion)
        .asBufferedImage();
    ImageIO.write(thumbnail, "jpg", outPutFile);
  } catch (IOException e) {
    e.printStackTrace();
  } 
}

代码示例来源：origin: Cool-Coding/remote-desktop-control

/**
 * 保持宽高比压缩图像
 * @param image
 *          图像
 * @param quality
 *          质量(0,1]
 * @return
 *          压缩后的图像
 */
public static BufferedImage compressedImage(BufferedImage image, float quality) {
  try {
    return Thumbnails.of(image).scale(1f).outputQuality(quality).asBufferedImage();
  }catch (IOException e){
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: youngMen1/JAVA-

/**
 * 图片格式转换
 * 
 * @param orgImgFile
 * @param width
 * @param height
 * @param suffixName
 * @param targetFile
 * @throws IOException
 */
public static final void format(String orgImgFile, int width, int height, String suffixName, String targetFile)
    throws IOException {
  Thumbnails.of(orgImgFile).size(width, height).outputFormat(suffixName).toFile(targetFile);
}

代码示例来源：origin: io.github.aktoluna/slnarch-common

public static File resizeWithThumbnails(File file, int width, int height) throws IOException {
 File outputFile = new File(getOutputFilePath(file));
 Thumbnails.of(file)
   .size(width, height)
   .outputFormat("jpg")
   .outputQuality(0.5f)
   .toFile(outputFile);
 return outputFile;
}

代码示例来源：origin: CognitiveJ/cognitivej

public static BufferedImage loadAndNameCandidateImages(ImageHolder imageHolder) {
    try {
      BufferedImage thumbnail = Thumbnails.of(new URL((String) imageHolder.firstImage().getImage()))
          .crop(Positions.CENTER).size(200, 200).asBufferedImage();
      ApplyCaptionOutsideImageFilter applyCaptionOutsideImageFilter = new ApplyCaptionOutsideImageFilter(PointLocations.BOTTOM_CENTER,
          ImageOverlayBuilder.DEFAULT_TEXT_FONT, CognitiveJColourPalette.WHITE, imageHolder.getName());
      return applyCaptionOutsideImageFilter.applyFilter(thumbnail);
    } catch (IOException e) {
      throw new CognitiveException("Could not make thumbnail", e);
    }
  }
}

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