Image compression is the process of downsizing an image as much as possible without sacrificing quality so that it can be stored at a lower cost and accessed more quickly.
Based on CI, COS provides the SVG compression feature, which can delete certain redundant information from an SVG file without compromising the display effect in order to downsize the file.
COS provides the SVG compression feature using CI's imageMogr2
API.
An image can be processed:
Note:SVG Compression is charged by CI at image advanced compression rates. For detailed pricing, see Image Processing Fees.
GET /<ObjectKey>?imageMogr2/format/svgc HTTP/1.1
Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
Date: <GMT Date>
Authorization: <Auth String>
PUT /<ObjectKey> HTTP/1.1
Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
Date: GMT Date
Authorization: Auth String
Pic-Operations:
{
"is_pic_info": 1,
"rules": [{
"fileid": "exampleobject",
"rule": "imageMogr2/format/svgc"
}]
}
Note:
Pic-Operations
is a JSON string. Its parameters are as described in Persistent Image Processing.
POST /<ObjectKey>?image_process HTTP/1.1
Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
Date: GMT Date
Content-length: Size
Authorization: Auth String
Pic-Operations:
{
"is_pic_info": 1,
"rules": [{
"fileid": "exampleobject",
"rule": "imageMogr2/format/svgc"
}]
}
Note:
Authorization: Auth String. For more information, see Request Signature.
- When this feature is used by a sub-account, relevant permissions must be granted as instructed in Authorization Granularity Details.
Parameter | Description |
---|---|
ObjectKey | Object name, such as folder/sample.jpg . |
/format/<Format> | Compression format, which is svgc |
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