使用 metadata-extractor 解析图片 exif 元数据信息

import java.io.File;

import com.drew.imaging.ImageMetadataReader;
import com.drew.metadata.Directory;
import com.drew.metadata.Metadata;
import com.drew.metadata.exif.ExifIFD0Directory;
import com.drew.metadata.exif.ExifSubIFDDirectory;

public class TestExif {

	/**
	 * @param args
	 * @throws Exception 
	 * @throws  
	 */
	public static void main(String[] args) throws Exception {
		File imgFile = new File("F:/IMG_0538.JPG");
		Metadata metadata = ImageMetadataReader.readMetadata(imgFile);
        for (Directory directory : metadata.getDirectories()) {

          
            
            if("ExifSubIFDDirectory".equalsIgnoreCase( directory.getClass().getSimpleName() )){
            	
            	//光圈F值=镜头的焦距/镜头光圈的直径
	            System.out.println("光圈值: f/" + directory.getString(ExifSubIFDDirectory.TAG_FNUMBER) );
	            
	            System.out.println("曝光时间: " + directory.getString(ExifSubIFDDirectory.TAG_EXPOSURE_TIME)+ "秒" );
	            System.out.println("ISO速度: " + directory.getString(ExifSubIFDDirectory.TAG_ISO_EQUIVALENT) );
	            System.out.println("焦距: " + directory.getString(ExifSubIFDDirectory.TAG_FOCAL_LENGTH) + "毫米" );
	            
	            System.out.println("拍照时间: " + directory.getString(ExifSubIFDDirectory.TAG_DATETIME_ORIGINAL) );
	            System.out.println("宽: " + directory.getString(ExifSubIFDDirectory.TAG_EXIF_IMAGE_WIDTH) );
	            System.out.println("高: " + directory.getString(ExifSubIFDDirectory.TAG_EXIF_IMAGE_HEIGHT) );
	            
        	}
            
            if("ExifIFD0Directory".equalsIgnoreCase( directory.getClass().getSimpleName() )){
	            System.out.println("照相机制造商: " + directory.getString(ExifIFD0Directory.TAG_MAKE) );
	            System.out.println("照相机型号: " + directory.getString(ExifIFD0Directory.TAG_MODEL) );
	            System.out.println("水平分辨率: " + directory.getString(ExifIFD0Directory.TAG_X_RESOLUTION) );
	            System.out.println("垂直分辨率: " + directory.getString(ExifIFD0Directory.TAG_Y_RESOLUTION) );
            }
        }

	}

}

 

 

 

示例输出如下：

 

光圈值: f/4

曝光时间: 1/500秒

ISO速度: 80

焦距: 6毫米

拍照时间: 2011:06:11 08:05:40

宽: 3648

高: 2736

照相机制造商: Canon

照相机型号: Canon PowerShot SX120 IS

水平分辨率: 180

垂直分辨率: 180