xmp 1.0.0

XMP module helps to extract xmp data from images.

XMP

xmp module helps to extract xmp data of the images. It is purely written in dart, So it can be used on server as well as on client.

Table of Contents

• Installing
• Usage
  • Imports
  • Read image file
  • Read image file from Asset Folder
  • Extract Exif Data
  • Saving Exif Content into File
• Donate (Be the First one)

Lets Get Started

1. Depend on it

Add this to your package's pubspec.yaml file:

dependencies:
  xmp: ^1.0.0

2. Install it

You can install packages from the command line:

with pub:

$  pub get

3. Import it

Now in your Dart code, you can use:

import 'package:xmp/xmp.dart';

Usage

Imports

import 'package:xmp/xmp.dart';    

Read Image File

var file = "path_to_pre_existing_image_file/image.jpg";
var bytes = File(file).readAsBytesSync();
    

Read Image from Flutter's Asset Folder

import 'package:flutter/services.dart' show ByteData, rootBundle;
    
/* Your blah blah code here */
    
ByteData data = await rootBundle.load("assets/path_to_pre_existing_image_file/image.jpg";);
var bytes = data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes);
    

Extract Exif Data

var result = XMP.extract(bytes);
saveFile(image, result);
    

Result

{
    "raw": {
        "MicrosoftPhoto:LastKeywordXMP": [
            "tag1",
            "tag2"
        ],
        "MicrosoftPhoto:Rating": "50",
        "xmp:Rating": "3",
        "dc:title": "Title",
        "dc:description": "Title",
        "dc:subject": "tag2"
    },
    "keywords": [
        "tag1",
        "tag2"
    ],
    "rating": 3,
    "title": "Title",
    "description": "Title",
    "subject": "tag2"
}

Saving exif content into File

void saveFile(String fileName, dynamic exifContent) {
  File('${path}$fileName.json').writeAsStringSync(jsonEncode(exifContent));
}
    

Also checkout our other libraries on:

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