tencent cloud

Overview

This document provides an overview of APIs and SDK code samples for blind watermarking.

Blind Watermark

Feature description

Blind watermark is a new type of watermark based on CI.

Method prototype

def ci_put_object_from_local_file(self, Bucket, LocalFilePath, Key, EnableMD5=False, **kwargs)

Sample request

# Add a blind watermark
watermark_url = 'http://{bucket}.cos.{region}.myqcloud.com/watermark.png'.format(bucket='examplebucket-1250000000', region=region)
watermark_url_base64 = bytes.decode(base64.b64encode(str.encode(watermark_url)))
print(watermark_url_base64)
response, data = client.ci_put_object_from_local_file(
  Bucket='examplebucket-1250000000',
  LocalFilePath='sample.png',
  Key="sample.png",
  # pic operation json struct
  PicOperations='{"is_pic_info":1,"rules":[{"fileid": "format.png","rule": "watermark/3/type/1/image/' +
                watermark_url_base64 + '" }]}'
)
# Extract a blind watermark
sample_url = 'http://{bucket}.cos.{region}.myqcloud.com/sample.png'.format(bucket='examplebucket-1250000000', region=region)
sample_url_base64 = bytes.decode(base64.b64encode(str.encode(sample_url)))
response, data = client.ci_put_object_from_local_file(
  Bucket='examplebucket-1250000000',
  LocalFilePath='format.png',
  Key="format.png",
  # pic operation json struct
  PicOperations='{"is_pic_info":1,"rules":[{"fileid": "watermark.png","rule": "watermark/4/type/1/image/' +
                sample_url_base64 + '" }]}'
)

Parameter description

Response description

This API returns the response header and body.