es多个经纬度查询 exif经纬度怎么看

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文章标签 es多个经纬度查询 java Exif Image 4D 文章分类 架构后端开发

Exif 是什么？

Exif就是用来记录拍摄图像时的各种信息：图像信息（厂商，分辨率等），相机拍摄记录（ISO，白平衡，饱和度，锐度等），缩略图（缩略图宽度，高度等），gps（拍摄时的经度，纬度，高度）等，将这些信息按照JPEG文件标准放在图像文件头部。

Exchangeable Image File(可交换图像文件)的缩写，
最初由日本电子工业发展协会(JEIDA --Japan Electronic Industry Development Association) 制订，目前的最新版本是2.21 版。国际标准化组织(ISO)正在制订的相机文件设计标准（DCF -- Design role for Camera File system）可能以Exif2.1为基础。
Exif 文件实际是JPEG文件的一种，遵从JPEG标准，只是在文件头信息中增加了有关拍摄信息的内容和索引图。所以你可以使用任何支持JPEG格式的图像工具软件观看或修改Exif文件，但打开时可能看不到Exif信息，一旦修改，Exif信息可能丢失。
简单来说，EXIF 信息就是由数码相机在拍摄过程中采集一系列的信息，然后把信息放置在我们熟知的 JPEG/TIFF 文件的头部，也就是说 EXIF 信息是镶嵌在 JPEG/TIFF 图像文件格式内的一组拍摄参数，主要包括摄影时的光圈、快门、ISO、日期时间等各种与当时摄影条件相关的讯息，相机品牌型号，色彩编码，拍摄时录制的声音以及全球定位系统（GPS）等信息。
简单的说，它就好像是傻瓜相机的日期打印功能一样，只不过 EXIF 信息所记录的资讯更为详尽和完备。

如何查看Exif信息

在window系统中可以通过右键查找图片信息中获得较为详细的Exif信息。

es多个经纬度查询 exif经纬度怎么看_java

Opanda PowerExif，可以更加全面的查看相关的属性。

es多个经纬度查询 exif经纬度怎么看_Exif_02

如何分析Exif信息

实例  分析  ：PICT0021.JPG 
 
00   FF D8 FF E1 3A 59 45 78 69 66 00 00 4D 4D 00 2A   
10   00 00 00 08 00 0C 01 0E 00 02 00 00 00 0E 00 00  
20   03 F4 01 0F 00 02 00 00 00 20 00 00 04 02 01 10  
30   00 02 00 00 00 20 00 00 04 22 01 12 00 03 00 00  
40   00 01 00 01 00 00 01 1A 00 05 00 00 00 01 00 00  
50   04 42 01 1B 00 05 00 00 00 01 00 00 04 4A 01 28  
60   00 03 00 00 00 01 00 02 00 00 01 31 00 02 00 00   
70   00 20 00 00 04 52 01 32 00 02 00 00 00 14 00 00  
80   04 72 02 13 00 03 00 00 00 01 00 01 00 00 87 69  
90   00 04 00 00 00 01 00 00 00 9E 88 25 00 04 00 00  
A0   00 01 00 00 02 A2 00 00 02 E4 00 28 82 9A 00 05  
B0   00 00 00 01 00 00 04 86 82 9D 00 05 00 00 00 01  
C0   00 00 04 8E 88 22 00 03 00 00 00 01 00 02 00 00  
D0   88 27 00 03 00 00 00 01 00 C8 00 00 90 00 00 07  
E0   00 00 00 04 30 32 32 31 90 03 00 02 00 00 00 14  
F0   00 00 04 96 90 04 00 02 00 00 00 14 00 00 04 AA  
100  91 01 00 07 00 00 00 04 01 02 03 00 91 02 00 05  
110  00 00 00 01 00 00 04 BE 92 01 00 0A 00 00 00 01  
120  00 00 04 C6 92 02 00 05 00 00 00 01 00 00 04 CE  
130  92 04 00 0A 00 00 00 01 00 00 04 D6 92 05 00 05  
140  00 00 00 01 00 00 04 DE 92 06 00 05 00 00 00 01  
150  00 00 04 E6 92 07 00 03 00 00 00 01 00 02 00 00  
160  92 08 00 03 00 00 00 01 00 00 00 00 92 09 00 03  
170  00 00 00 01 00 20 00 00 92 0A 00 05 00 00 00 01  
180  00 00 04 EE 92 7C 00 07 00 00 00 40 00 00 04 F6  
190  A0 00 00 07 00 00 00 04 30 31 30 30 A0 01 00 03  
1A0  00 00 00 01 00 01 00 00 A0 02 00 04 00 00 00 01  
1B0  00 00 12 00 A0 03 00 04 00 00 00 01 00 00 0D 80  
1C0  A0 05 00 04 00 00 00 01 00 00 02 84 A2 15 00 05  
1D0  00 00 00 01 00 00 05 36 A2 17 00 03 00 00 00 01  
1E0  00 02 00 00 A3 00 00 07 00 00 00 01 03 00 00 00  
1F0  A3 01 00 07 00 00 00 01 01 00 00 00 A4 01 00 03  
200  00 00 00 01 00 00 00 00 A4 02 00 03 00 00 00 01  
210  00 00 00 00 A4 03 00 03 00 00 00 01 00 00 00 00  
220  A4 04 00 05 00 00 00 01 00 00 05 3E A4 05 00 03  
230  00 00 00 01 00 29 00 00 A4 06 00 03 00 00 00 01  
240  00 00 00 00 A4 07 00 03 00 00 00 01 00 00 00 00  
250  A4 08 00 03 00 00 00 01 00 00 00 00 A4 09 00 03  
260  00 00 00 01 00 00 00 00 A4 0A 00 03 00 00 00 01  
270  00 00 00 00 A4 0B 00 07 00 00 00 04 00 00 00 00  
280  A4 0C 00 03 00 00 00 01 00 00 00 00 00 00 00 00  
290  00 02 00 01 00 02 00 00 00 04 52 39 38 00 00 02  
2A0  00 07 00 00 00 04 30 31 30 30 00 00 00 00 00 05  
2B0  00 00 00 01 00 00 00 04 02 02 00 00 00 01 00 02  
2C0  00 00 00 02 4E 00 00 00 00 02 00 05 00 00 00 03  
2D0  00 00 05 46 00 03 00 02 00 00 00 02 45 00 00 00  
2E0  00 04 00 05 00 00 00 03 00 00 05 5E 00 00 00 00  
2F0  00 06 01 03 00 03 00 00 00 01 00 06 00 00 01 1A  
300  00 05 00 00 00 01 00 00 05 76 01 1B 00 05 00 00  
310  00 01 00 00 05 7E 01 28 00 03 00 00 00 01 00 02  
320  00 00 02 01 00 04 00 00 00 01 00 00 07 F4 02 02  
330  00 04 00 00 00 01 00 00 32 5D 00 00 00 00 00 00  
     
   FF D8       SOI  
   FF E1       APP1  
   3A 59       APP1 LENGTH  
   45 78 69 66 00 00 Exif ASCII结束符两个  
   4D 4D       MM big endian TIFF Header (注意小端的为：49492A00 08000000)  
   00 2A       fixed  
   00 00 00 08 IFD0 offset  
   00 0C       IFD0: number of TAGs 12个tag，每个12字节。  
   01 0E       TAG      Image title     
   00 02       TYPE ASCII  
   00 00 00 0E count   最多13个字符  
   00 00 03 F4 offset +0C=0x400 可以看到DCIM\100MEDIA (0x0c from the start of the TIFF header 4D4D MM)  


   01 0F       TAG Image input equipment manuf   
   00 02       TYPE ASCII  
   00 00 00 20 count   最多31个字符  
   00 00 04 02 offset +0c=0x040E 可以看到TCL  


   01 10       TAG Image input equipment model   
   00 02       TYPE ASCII  
   00 00 00 20 count  
   00 00 04 22 offset +0c=0x042E 可以看到SDV05  
     
   01 12       TAG Orientation of image   
   00 03       SHORT             00 01  
   00 00 00 01 count  
   00 01 00 00 value   
     
   01 1A       TAG Image resolution in width 0x0442+0c=0x44E，可以看到00 00 00 48/00 00 00 01  
   00 05       RATIONAL   
   00 00 00 01 count  
   00 00 04 42 offset +0c=0x44E，可以看到00 00 00 48/00 00 00 01  
     
   01 1B       TAG Image resolution in height   
   00 05       RATIONAL  
   00 00 00 01   
   00 00 04 4A offset+0c=0x456 可以看到00 00 00 48/00 00 00 01  
     
   01 28       Unit of X and Y resolution  
   00 03       SHORT                00 02  
   00 00 00 01   
   00 02 00 00   
     
   01 31       Software used   
   00 02       ASCII  
   00 00 00 20 count  
   00 00 04 52 offset +0c =0x45E 可以看到0.0.2  
     
   01 32       DateTime   
   00 02       ASCII  
   00 00 00 14 20字节  
   00 00 04 72 offset+0c=0x47E，可以看到2012:07:29 21:28:18  
     
   02 13       YCbCrPositioning  
   00 03       SHORT      00 01  
   00 00 00 01   
   00 01 00 00  
     
   87 69       Exif IFD Pointer  
   00 04       LONG  
   00 00 00 01 count  
   00 00 00 9E offset+0c=0xAA  
     
   88 25       GPS Info IFD Pointer  
   00 04       LONG  
   00 00 00 01 count  
   00 00 02 A2 offset+0c=0x02AE  
     
   00 00 02 E4 nextIFD IFD1 offset  
     
   00 28  Exif IFD number of TAGs  
   82 9A  ExposureTime  
   00 05  RATIONAL  
   00 00 00 01 count  
   00 00 04 86 offset+0c=0x0492  
   ...      Exif的相关信息这里先不做分析，请大家参照上面的文档自己分析了。
    
    这里主要是分析GPS相关信息
     GPS Info IFD Pointer 0x02AE  从上面数据2A0行的后面看数据  
   00 05       count of TAGs  
     
   00 00       GPSVersionID  
   00 01       BYTE  
   00 00 00 04 count  
   02 02 00 00 value 2.2.0.0  
     
   00 01       GPSLatitudeRef  
   00 02       ASCII  
   00 00 00 02 count  
   4E 00 00 00 N North    
     
   00 02       GPSLatitude  
   00 05       RATIONAL               前4字节为分子，后4字节为分母，十六进制先转为十进制  
   00 00 00 03 count  
   00 00 05 46 offset+0c=0x552 16 00 00 00 01 00 00 00 22 00 00 00 01 00 00 00 51 00 00 00 04 00 00 00  
                                                       22/1=22                             34/1=34                              81/4= 20.25  
                                                      通过windows的右键属性看详细  信息  ：22；34；20.249999999999915 
 
   00 03       GPSLongitudeRef  
   00 02  
   00 00 00 02 count  
   45 00 00 00 East  
     
   00 04       GPSLongitude  
   00 05       RATIONAL  
   00 00 00 03 count  
   00 00 05 5E offset+0c=0x56A 71 00 00 00 01 00 00 00 37 00 00 00 01 00 00 00 6C 00 00 00 04 00  
                                                       113/1=113                          55/1=55                             108/4=27  
                                                    通过windows的右键属性看详细  信息  ：113;55;27.000000000000171 
 

550 04 00 16 00 00 00 01 00 00 00 22 00 00 00 01 00   
560 00 00 51 00 00 00 04 00 00 00 71 00 00 00 01 00  
570 00 00 37 00 00 00 01 00 00 00 6C 00 00 00 04 00  
580 00 00 00 00 00 48 00 00 00 01 00 00 00 48 00 00  
590 00 01 00 00 00 00 00 00