Object Storage Service:丸い角の四角形

Rは、パブリック読み取りまたはパブリック読み取り /書き込みイメージのコーナーを示します。

このトピックでは、中国 (杭州) リージョンのoss-console-img-demo-cn-hangzhouバケットで画像の角を丸める方法の例を示します。 イメージは次のURLでホストされます。

• ソースイメージの角を丸めます。

  次の要件に基づいてパラメーターを設定します。

  • 角を丸める半径を30ピクセルに設定します。round-corners,r_30

  • 処理した画像をJPG形式で保存します: format,jpg。 ソースイメージの形式がJPGの場合、このパラメーターは指定しないでください。

  上記のパラメーターを適用するために使用されるURLは https://oss-console-img-demo-cn-hangzhou.oss-cn-hangzhou.aliyuncs.com/example.jpg?x-oss-process=image/rounded-corners,r_30

• ソース画像をトリミングし、トリミングした画像の角を丸めて、処理した画像をPNG形式で保存します。

  次の要件に基づいてパラメーターを設定します。

  • ソースイメージをデフォルトの開始位置 (Crop, w_100,h_100) から100 × 100ピクセルにトリミングします。

  • コーナーが丸められる半径を10ピクセルに設定します。round-corners,r_10

  • 処理した画像をPNG形式で保存します: format,png。

  上記のパラメーターを適用するために使用されるURLは https://oss-console-img-demo-cn-hangzhou.oss-cn-hangzhou.aliyuncs.com/example.jpg?x-oss-process=image/crop,w_100,h_100/rounded-corners,r_10/format,png

Rプライベート画像の角を囲む

OSS SDKとRESTful APIを使用して、プライベートイメージの角を丸めることができます。

import com.aliyun.oss.*;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.common.comm.SignVersion;
import com.aliyun.oss.model.GetObjectRequest;
import java.io.File;

public class Demo {
    public static void main(String[] args) throws Throwable {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint.
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Specify the region in which the bucket is located. Example: cn-hangzhou.
        String region = "cn-hangzhou";
        // Obtain access credentials from environment variables. Before you execute the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket.
        String bucketName = "examplebucket";
        // Specify the full path of the object. Do not include the bucket name in the full path.
        String objectName = "example.jpg";
        // Specify the full path of the processed image. Example: D:\\dest.jpg. If a file that has the same name already exists, the downloaded object overwrites the file. Otherwise, the downloaded object is saved in the path.
        String pathName = "D:\\dest.jpg";

        // Create an OSSClient instance.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);
        OSS ossClient = OSSClientBuilder.create()
                .endpoint(endpoint)
                .credentialsProvider(credentialsProvider)
                .clientConfiguration(clientBuilderConfiguration)
                .region(region)
                .build();

        try {
            // Set the radius at which the corners are rounded to 30 pixels
            String image = "image/rounded-corners,r_30";
            GetObjectRequest request = new GetObjectRequest(bucketName, objectName);
            request.setProcess(image);
            // Set the name of the processed image to dest.jpg and save it to your local computer.
            // If you specify only the name of the processed image such as dest.jpg without specifying the local path, the processed image is saved to the local path of the project to which the sample program belongs.
            ossClient.getObject(request, new File("D:\\dest.jpg"));
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

<?php
if (is_file(__DIR__ . '/../autoload.php')) {
    require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
    require_once __DIR__ . '/../vendor/autoload.php';
}
use OSS\Credentials\EnvironmentVariableCredentialsProvider;
use OSS\OssClient;

// Obtain access credentials from environment variables. Before you execute the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured.
$provider = new EnvironmentVariableCredentialsProvider();
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com.
$endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
// Specify the name of the bucket. Example: examplebucket.
$bucket= "examplebucket";
// Specify the full path of the object. Do not include the bucket name in the full path.
$object = "example.jpg";
// Specify the full path of the processed image. Example: D:\\dest.jpg. If an image that has the same name already exists in the path, the processed image overwrites the image. Otherwise, the processed image is saved in the path.
// If you specify only the name of the processed image such as dest.jpg without specifying the local path, the processed image is saved to the local path of the project to which the sample program belongs.
$download_file = "D:\\dest.jpg";

$config = array(
        "provider" => $provider,
        "endpoint" => $endpoint,        
        "signatureVersion" => OssClient::OSS_SIGNATURE_VERSION_V4,
        // Specify the ID of the Alibaba Cloud region in which the bucket is located.
        "region" => "cn-hangzhou"
    );
$ossClient = new OssClient($config);

// Set the radius at which the corners are rounded to 30 pixels.
$image = "image/rounded-corners,r_30";

$options = array(
    OssClient::OSS_FILE_DOWNLOAD => $download_file,
    OssClient::OSS_PROCESS => $image);

// Save the processed image to your local computer.
$ossClient->getObject($bucket, $object, $options);                           

# -*- coding: utf-8 -*-
import oss2
from oss2.credentials import EnvironmentVariableCredentialsProvider

# Obtain access credentials from environment variables. Before you execute the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured.
auth = oss2.ProviderAuthV4(EnvironmentVariableCredentialsProvider())
# Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com.
# Specify the actual endpoint.
endpoint = 'https://oss-cn-hangzhou.aliyuncs.com'
# Specify the ID of the Alibaba Cloud region in which the bucket is located.
region = 'cn-hangzhou'
bucket = oss2.Bucket(auth, endpoint, 'examplebucket', region=region)
# Specify the name of the image that you want to process. If the image is not stored in the root directory of the bucket, you must include the full path of the image. Example: exampledir/src.gif.
key = 'example.jpg'
# Specify the name of the processed image.
new_pic = 'D:\\dest.jpg'

# Set the radius at which the corners are rounded to 30 pixels.
image = 'image/rounded-corners,r_30'
bucket.get_object_to_file(key, new_pic, process=image)

package main

import (
	"fmt"
	"os"

	"github.com/aliyun/aliyun-oss-go-sdk/oss"
)

func HandleError(err error) {
	fmt.Println("Error:", err)
	os.Exit(-1)
}

func main() {
	// Obtain access credentials from environment variables. Before you execute the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured.
	provider, err := oss.NewEnvironmentVariableCredentialsProvider()
	if err != nil {
		fmt.Println("Error:", err)
		os.Exit(-1)
	}

	// Create an OSSClient instance.
	// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. Specify the actual endpoint.
	client, err := oss.New("https://oss-cn-hangzhou.aliyuncs.com", "", "", oss.SetCredentialsProvider(&provider), oss.AuthVersion(oss.AuthV4), oss.Region("cn-hangzhou"))
	if err != nil {
		HandleError(err)
	}

	// Specify the name of the bucket in which the source image is stored. Example: examplebucket.
	bucketName := "examplebucket"
	bucket, err := client.Bucket(bucketName)
	if err != nil {
		HandleError(err)
	}

	// Specify the name of the image that you want to process. If the image is not stored in the root directory of the bucket, you must include the full path of the image. Example: exampledir/src.gif.
	sourceImageName := "example.jpg"
	// Specify the name of the processed image.
	targetImageName := "D://dest.jpg"
	// Set the radius at which the corners are rounded to 30 pixels.
	image := "image/rounded-corners,r_30"
	err = bucket.GetObjectToFile(sourceImageName, targetImageName, oss.Process(image))
	if err != nil {
		HandleError(err)
	}
}

GET /oss.jpg?x-oss-process=image/rounded-corners,r_30 HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Date: Fri, 28 Oct 2022 06:40:10 GMT
Authorization: OSS qn6q**************:77Dv****************