Question

如果我上传了较小的较低分辨率图像，我得到了aws rekognition无效参数异常。

看到以下错误

https://rekognition.us-west-2.amazonaws.com` resulted in a `400 Bad Request` response: {"__type":"InvalidImageFormatException","Message":"Request has invalid image format"} InvalidImageFormatException (client): Request has invalid image format - {"__type":"InvalidImageFormatException","Message":"Request has invalid image format"}' GuzzleHttp\Exception\ClientException: Client error: `POST https://rekognition.us-west-2.amazonaws.com` resulted in a `400 Bad Request` response: {"__type":"InvalidImageFormatException","Message":"Request has invalid image format"} in /var/www/vhosts/harvest.io.farm/aws/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php:111 Stack trace: #0 /var/www/vhosts/harvest.io.farm/aws/vendor/guzzlehttp/guzzle/src/Middleware.php(65): GuzzleHttp\Exception\RequestException::create(Object(Guz in /var/www/vhosts/harvest.io.farm/aws/vendor/aws/aws-sdk-php/src/WrappedHttpHandler.php on line 192

我的代码是

$result = $recognizationClient->indexFaces([
            'CollectionId' => getCollectionName( $txtCID ), // REQUIRED
            'Image' => [ // REQUIRED
                'S3Object' => [
                    'Bucket' => $bucket,
                    'Name' => $actual_image_name            
                ],
            ],
        ]);

Answer 1

当indexFaces无法检测到任何面孔时，抛出此异常。这可能是图片很小且模糊不清，但在其他情况下，例如没有真实面孔的情况。您可以尝试先运行DetectFaces并检查响应。与此类似：

$is_face_detected = $aws_rekognition_client->detectFaces([
                'Image' => [
                    'S3Object' => [
                        'Bucket' => $bucket,
                        'Name' => $actual_image_name
                    ]
                ]
            ]);

if (!empty($is_face_detected['FaceDetails'])) {

    $result = $recognizationClient->indexFaces([
            'CollectionId' => getCollectionName( $txtCID )
            'Image' => [
                'S3Object' => [
                    'Bucket' => $bucket,
                    'Name' => $actual_image_name            
                ],
            ],
        ]);

} else {
   // perform notification, etc.
}

您可以在此处找到有关“检测面部”的更多信息： https://docs.aws.amazon.com/rekognition/latest/dg/API_DetectFaces.html

AWS Rekognition InvalidParameterException

1 个答案: