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Blind Watermark

Terakhir diperbarui:2024-02-02 17:35:19

    Overview

    This document provides an overview of APIs and SDK code samples for blind watermarking.
    For blind watermark APIs, see Blind Watermarking.

    Adding Blind Watermark

    Feature description

    You can add a blind watermark when uploading or downloading an object.

    Sample 1: Adding a blind watermark during upload

    <!-- DOM element on the HTLM page -->
    
    <!-- Choose a file to upload -->
    <input id="fileSelector" type="file" />
    <!-- Click the button for upload-->
    <input id="submitBtn" type="submit" />
    function handleFileInUploading(file) {
    cos.putObject(
    {
    Bucket: 'examplebucket-1250000000',
    Region: 'COS_REGION',
    Key: file.name,
    Body: file,
    Headers: {
    // CI's persistent processing API during upload
    'Pic-Operations':
    '{"is_pic_info": 1, "rules": [{"fileid": "desample_photo.jpg", "rule": "watermark/3/type/1/image/aHR0cDovL2V4YW1wbGVzLTEyNTEwMDAwMDQucGljc2gubXlxY2xvdWQuY29tL3NodWl5aW4uanBn"}]}',
    },
    },
    function (err, data) {
    console.log(err || data);
    },
    );
    }
    
    document.getElementById('submitBtn').onclick = function (e) {
    var file = document.getElementById('fileSelector').files[0];
    if (!file) {
    document.getElementById('msg').innerText = 'No file selected for upload';
    return;
    }
    handleFileInUploading();
    };

    Sample 2: Adding a blind watermark during download

    <!-- DOM element on the HTLM page -->
    
    <!-- Click the button to download and process the image -->
    <input id="submitBtn" type="submit" />
    function getObject() {
    cos.getObject(
    {
    Bucket: 'examplebucket-1250000000',
    Region: 'COS_REGION',
    Key: 'exampleobject',
    QueryString: `watermark/3/type/1/image/aHR0cDovL2V4YW1wbGVzLTEyNTEwMDAwMDQucGljc2gubXlxY2xvdWQuY29tL3NodWl5aW4uanBn`,
    },
    function (err, data) {
    console.log(err || data);
    },
    );
    }
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