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Persistent Image Processing

Last updated: 2024-02-29 16:52:32

    Overview

    This document provides an overview of APIs and SDK code samples for persistent image processing.
    API
    Description
    Processes images persistently.

    Processing During Upload

    COS allows you to process images during upload. To enable this, add Pic-Operations to the request header and set relevant parameters. You can also save the input images and processing results to COS. Currently, images within 20 MB can be processed.

    Sample request

    opt := &cos.ObjectPutOptions{
    nil,
    &cos.ObjectPutHeaderOptions{
    XOptionHeader: &http.Header{},
    },
    }
    pic := &cos.PicOperations{
    IsPicInfo: 1,
    Rules: []cos.PicOperationsRules{
    {
    FileId: "format.jpg",
    Rule: "imageView2/format/png",
    },
    },
    }
    opt.XOptionHeader.Add("Pic-Operations", cos.EncodePicOperations(pic))
    name := "test.jpg"
    local_filename := "./test.jpg"
    res, _, err := c.CI.PutFromFile(context.Background(), name, local_filename, opt)

    Parameter description

    type PicOperations struct {
    IsPicInfo int
    Rules []PicOperationsRules
    }
    type PicOperationsRules struct {
    Bucket string
    FileId string
    Rule string
    }
    Parameter
    Description
    Type
    Required
    IsPicInfo
    Whether to return the input image information. Valid values: 0 (no), 1 (yes). Default value: 0.
    int
    No
    Rules
    Processing rules (up to five rules are supported). Each rule corresponds to one processing result. If this parameter is not specified, images will not be processed.
    Array
    No
    Bucket
    Name of the destination bucket to store the results in the format of BucketName-APPID. If this parameter is not specified, the results will be stored in the current bucket by default.
    String
    No
    FileId
    Path of the processing result file. If the path starts with /, the result file will be stored in the specified folder; otherwise, it will be stored in the same directory as the input image file.
    string
    Yes
    Rule
    Processing parameters. For more information, see the persistent image processing API. To process an image with a specified style, the value must start with style/ with the style name followed. For example, if the style name is test, the value of rule should be style/test.
    string
    No

    Processing In-Cloud Data

    This API is used to process an image stored in COS and save the processing result to COS.

    Sample request

    opt := &cos.ImageProcessOptions{
    IsPicInfo: 1,
    Rules: []cos.PicOperationsRules{
    {
    FileId: "format.jpg",
    Rule: "imageView2/format/png",
    },
    },
    }
    name := "test.jpg"
    res, _, err := c.CI.ImageProcess(context.Background(), name, opt)
    
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