com.drew.metadata 获取图片信息

今天药忘吃喽~ 2021-12-09 06:55 315阅读 0赞

<dependency>
        <groupId>com.drewnoakes</groupId>
        <artifactId>metadata-extractor</artifactId>
    </dependency>

public static void main(String[] args) throws Exception { 
            File mFile = new File("/Users/mac/Desktop/WechatIMG185.jpeg");
            Metadata metadata = ImageMetadataReader.readMetadata(mFile);
    		// 获取所有项的信息
            Iterable<Directory> directoryIterable = metadata.getDirectories();
            if (directoryIterable != null) { 
                Iterator<Directory> directoryIterator = directoryIterable.iterator();
                while (directoryIterator.hasNext()) { 
                    Directory directory = directoryIterator.next();
                    Collection<Tag> tags = directory.getTags();
                    for (Tag tag : tags) { 
    // System.out.println(tag.getDescription());
                        System.out.println(tag);
                    }
                }
    
    
                // 取具体某一项的信息
                Iterable<ExifSubIFDDirectory> exifSubIFDDirectoryIterable = metadata.getDirectoriesOfType(ExifSubIFDDirectory.class);
                if (exifSubIFDDirectoryIterable != null) { 
                    Iterator<ExifSubIFDDirectory> subIFDDirectoryIterator = exifSubIFDDirectoryIterable.iterator();
                    if (subIFDDirectoryIterator != null && subIFDDirectoryIterator.hasNext()) { 
                        ExifSubIFDDirectory dr = subIFDDirectoryIterator.next();
                        if (dr.containsTag(ExifSubIFDDirectory.TAG_USER_COMMENT)) { 
                            System.out.println(dr.getDescription(ExifSubIFDDirectory.TAG_USER_COMMENT));
                        }
                    }
                }
    }

输出如下：

[JPEG] Compression Type - Baseline
    [JPEG] Data Precision - 8 bits
    [JPEG] Image Height - 4032 pixels
    [JPEG] Image Width - 3024 pixels
    [JPEG] Number of Components - 3
    [JPEG] Component 1 - Y component: Quantization table 0, Sampling factors 2 horiz/2 vert
    [JPEG] Component 2 - Cb component: Quantization table 1, Sampling factors 1 horiz/1 vert
    [JPEG] Component 3 - Cr component: Quantization table 1, Sampling factors 1 horiz/1 vert
    [JFIF] Version - 1.1
    [JFIF] Resolution Units - none
    [JFIF] X Resolution - 72 dots
    [JFIF] Y Resolution - 72 dots
    [JFIF] Thumbnail Width Pixels - 0
    [JFIF] Thumbnail Height Pixels - 0
    [Exif IFD0] Make - Yiruikecorp
    [Exif IFD0] Model - foodie
    [Exif IFD0] Orientation - Top, left side (Horizontal / normal)
    [Exif IFD0] X Resolution - 72 dots per inch
    [Exif IFD0] Y Resolution - 72 dots per inch
    [Exif IFD0] Resolution Unit - Inch
    [Exif IFD0] YCbCr Positioning - Center of pixel array
    [Exif SubIFD] Exif Version - 2.21
    [Exif SubIFD] Date/Time Digitized - 2019:07:04 15:49:15
    [Exif SubIFD] Components Configuration - YCbCr
    [Exif SubIFD] User Comment - plain_02,-1
    [Exif SubIFD] FlashPix Version - 1.00
    [Exif SubIFD] Color Space - sRGB
    [Exif SubIFD] Exif Image Width - 3024 pixels
    [Exif SubIFD] Exif Image Height - 4032 pixels
    [Exif SubIFD] Scene Capture Type - Standard
    [Exif Thumbnail] Compression - JPEG (old-style)
    [Exif Thumbnail] X Resolution - 72 dots per inch
    [Exif Thumbnail] Y Resolution - 72 dots per inch
    [Exif Thumbnail] Resolution Unit - Inch
    [Exif Thumbnail] Thumbnail Offset - 394 bytes
    [Exif Thumbnail] Thumbnail Length - 10125 bytes
    [XMP] XMP Value Count - 1
    [Photoshop] Caption Digest - 212 29 140 217 143 0 178 4 233 128 9 152 236 248 66 126
    [Huffman] Number of Tables - 4 Huffman tables
    [File Type] Detected File Type Name - JPEG
    [File Type] Detected File Type Long Name - Joint Photographic Experts Group
    [File Type] Detected MIME Type - image/jpeg
    [File Type] Expected File Name Extension - jpg
    [File] File Name - WechatIMG185.jpeg
    [File] File Size - 2911336 bytes
    [File] File Modified Date - 星期四 七月 04 15:50:35 +08:00 2019
    plain_02,-1