Examples with JPEGImageEncoder com.sun.image.codec.jpeg.JPEGImageEncoder used on opensource projects

Example 11 with JPEGImageEncoder

use of com.sun.image.codec.jpeg.JPEGImageEncoder in project my_curd by qinyou.

the class ImageWatermark method pressImage.

/**
 * 把图片印刷到图片上
 *
 * @param pressImg  -- 水印文件
 * @param targetImg -- 目标文件
 * @param x
 * @param y
 */
public static final void pressImage(String pressImg, String targetImg, int x, int y) {
    try {
        File _file = new File(targetImg);
        Image src = ImageIO.read(_file);
        int wideth = src.getWidth(null);
        int height = src.getHeight(null);
        BufferedImage image = new BufferedImage(wideth, height, BufferedImage.TYPE_INT_RGB);
        Graphics g = image.createGraphics();
        g.drawImage(src, 0, 0, wideth, height, null);
        // 水印文件
        File _filebiao = new File(pressImg);
        Image src_biao = ImageIO.read(_filebiao);
        int wideth_biao = src_biao.getWidth(null);
        int height_biao = src_biao.getHeight(null);
        g.drawImage(src_biao, wideth - wideth_biao - x, height - height_biao - y, wideth_biao, height_biao, null);
        g.dispose();
        FileOutputStream out = new FileOutputStream(targetImg);
        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
        encoder.encode(image);
        out.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

Example 12 with JPEGImageEncoder

use of com.sun.image.codec.jpeg.JPEGImageEncoder in project pancm_project by xuwujing.

the class CompressImage method resize.

/**
 * 强制压缩/放大图片到固定的大小
 *
 * @param w int 新宽度
 * @param h int 新高度
 */
public static void resize(int w, int h, String toPic, String fileName) throws IOException {
    // 读入文件
    File file = new File(fileName);
    BufferedImage img = ImageIO.read(file);
    // SCALE_SMOOTH 的缩略算法 生成缩略图片的平滑度的 优先级比速度高 生成的图片质量比较好 但速度慢
    BufferedImage image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
    // 绘制缩小后的图
    image.getGraphics().drawImage(img, 0, 0, w, h, null);
    File destFile = new File(toPic);
    // 输出到文件流
    FileOutputStream out = new FileOutputStream(destFile);
    // 可以正常实现bmp、png、gif转jpg
    JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
    // JPEG编码
    encoder.encode(image);
    out.close();
}

Example 13 with JPEGImageEncoder

use of com.sun.image.codec.jpeg.JPEGImageEncoder in project Java8 by huhuhuHR.

the class OperateImage method enlargementImageByRatio.

/**
 * 按倍率放大图片
 *
 * @param srcImagePath
 *            读取图形路径
 * @param toImagePath
 *            写入入行路径
 * @param widthRatio
 *            宽度放大比例
 * @param heightRatio
 *            高度放大比例
 * @throws IOException
 */
public void enlargementImageByRatio(String srcImagePath, String toImagePath, int widthRatio, int heightRatio) throws IOException {
    FileOutputStream out = null;
    try {
        // 读入文件
        File file = new File(srcImagePath);
        // 构造Image对象
        BufferedImage src = javax.imageio.ImageIO.read(file);
        int width = src.getWidth();
        int height = src.getHeight();
        // 放大边长
        BufferedImage tag = new BufferedImage(width * widthRatio, height * heightRatio, BufferedImage.TYPE_INT_RGB);
        // 绘制放大后的图片
        tag.getGraphics().drawImage(src, 0, 0, width * widthRatio, height * heightRatio, null);
        out = new FileOutputStream(toImagePath);
        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
        encoder.encode(tag);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (out != null) {
            out.close();
        }
    }
}

Example 14 with JPEGImageEncoder

use of com.sun.image.codec.jpeg.JPEGImageEncoder in project Java8 by huhuhuHR.

the class OperateImage method mergeBothImageLeftbottom.

/**
 * 将附加图片合并到底图的左下角
 *
 * @param negativeImagePath
 *            底图路径
 * @param additionImagePath
 *            附加图片路径
 * @param toPath
 *            合成图片写入路径
 * @throws IOException
 */
public void mergeBothImageLeftbottom(String negativeImagePath, String additionImagePath, String toPath) throws IOException {
    InputStream is = null;
    InputStream is2 = null;
    OutputStream os = null;
    try {
        is = new FileInputStream(negativeImagePath);
        is2 = new FileInputStream(additionImagePath);
        BufferedImage image = ImageIO.read(is);
        BufferedImage image2 = ImageIO.read(is2);
        Graphics g = image.getGraphics();
        g.drawImage(image2, 0, image.getHeight() - image2.getHeight(), null);
        os = new FileOutputStream(toPath);
        JPEGImageEncoder enc = JPEGCodec.createJPEGEncoder(os);
        enc.encode(image);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (os != null) {
            os.close();
        }
        if (is2 != null) {
            is2.close();
        }
        if (is != null) {
            is.close();
        }
    }
}

Example 15 with JPEGImageEncoder

use of com.sun.image.codec.jpeg.JPEGImageEncoder in project Java8 by huhuhuHR.

the class OperateImage method reduceImageByRatio.

/**
 * 按倍率缩小图片
 *
 * @param srcImagePath
 *            读取图片路径
 * @param toImagePath
 *            写入图片路径
 * @param widthRatio
 *            宽度缩小比例
 * @param heightRatio
 *            高度缩小比例
 * @throws IOException
 */
public void reduceImageByRatio(String srcImagePath, String toImagePath, int widthRatio, int heightRatio) throws IOException {
    FileOutputStream out = null;
    try {
        // 读入文件
        File file = new File(srcImagePath);
        // 构造Image对象
        BufferedImage src = javax.imageio.ImageIO.read(file);
        int width = src.getWidth();
        int height = src.getHeight();
        // 缩小边长
        BufferedImage tag = new BufferedImage(width / widthRatio, height / heightRatio, BufferedImage.TYPE_INT_RGB);
        // 绘制 缩小 后的图片
        tag.getGraphics().drawImage(src, 0, 0, width / widthRatio, height / heightRatio, null);
        out = new FileOutputStream(toImagePath);
        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
        encoder.encode(tag);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (out != null) {
            out.close();
        }
    }
}