Computer Vision API (2022-10-12-preview)

Analyze

Analyze the input image. The request either contains image stream with any content type ['image/*', 'application/octet-stream'], or a JSON payload which includes an url property to be used to retrieve the image stream.

Select the testing console in the region where you created your resource:

Open API testing console

Request URL

Request parameters

string

The visual features requested: tags, objects, description, read, smartCrops, people.

(optional)
string

The desired language for output generation. If this parameter is not specified, the default value is "en". See https://aka.ms/cv-languages for a list of supported languages.

(optional)
string

A list of aspect ratios to use for smart cropping. Aspect ratios are calculated by dividing the target crop width by the height. Multiple values should be comma-separated.

Request headers

string
Media type of the body sent to the API.
string
Subscription key which provides access to this API. Found in your Cognitive Services accounts.

Request body

A JSON document with a URL pointing to the image that is to be analyzed.

{
  "url": "string"
}
{
  "description": "A JSON document with a URL pointing to the image that is to be analyzed.",
  "required": [
    "url"
  ],
  "type": "object",
  "properties": {
    "url": {
      "description": "Publicly reachable URL of an image.",
      "type": "string"
    }
  }
}
[Binary image data]

Response 200

Success

Response 500

Error

{
  "error": {
    "code": "string",
    "message": "string"
  }
}
{
  "description": "Response returned when an error occurs.",
  "required": [
    "error"
  ],
  "type": "object",
  "properties": {
    "error": {
      "description": "Detailed information about the error that occurred.",
      "required": [
        "code",
        "message"
      ],
      "type": "object",
      "properties": {
        "code": {
          "description": "Error code.\r\n- InvalidRequest: The request was malformed.\r\n- NotFound: The specified resource was not found.\r\n- ResourceModified: The resource has been modified and its ETag no longer matches the given value.\r\n- AlreadyExists: The resource cannot be created because another resource with the same name already exists.\r\n- ForbiddenByDRMode: The specified operation is currently unavailable.",
          "type": "string"
        },
        "message": {
          "description": "A message describing the error that occurred.",
          "type": "string"
        }
      }
    }
  }
}
{
  "error": {
    "code": "string",
    "message": "string"
  }
}
{
  "description": "Response returned when an error occurs.",
  "required": [
    "error"
  ],
  "type": "object",
  "properties": {
    "error": {
      "description": "Detailed information about the error that occurred.",
      "required": [
        "code",
        "message"
      ],
      "type": "object",
      "properties": {
        "code": {
          "description": "Error code.\r\n- InvalidRequest: The request was malformed.\r\n- NotFound: The specified resource was not found.\r\n- ResourceModified: The resource has been modified and its ETag no longer matches the given value.\r\n- AlreadyExists: The resource cannot be created because another resource with the same name already exists.\r\n- ForbiddenByDRMode: The specified operation is currently unavailable.",
          "type": "string"
        },
        "message": {
          "description": "A message describing the error that occurred.",
          "type": "string"
        }
      }
    }
  }
}

Code samples

@ECHO OFF

curl -v -X POST "https://*.cognitiveservices.azure.com/computervision/imageanalysis:analyze?api-version=2022-10-12-preview?features={string}&language=en&smartcrops-aspect-ratios={string}"
-H "Content-Type: application/json"
-H "Ocp-Apim-Subscription-Key: {subscription key}"

--data-ascii "{body}" 

using System;
using System.Net.Http.Headers;
using System.Text;
using System.Net.Http;
using System.Web;

namespace CSHttpClientSample
{
    static class Program
    {
        static void Main()
        {
            MakeRequest();
            Console.WriteLine("Hit ENTER to exit...");
            Console.ReadLine();
        }
        
        static async void MakeRequest()
        {
            var client = new HttpClient();
            var queryString = HttpUtility.ParseQueryString(string.Empty);

            // Request headers
            client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", "{subscription key}");

            // Request parameters
            queryString["features"] = "{string}";
            queryString["language"] = "en";
            queryString["smartcrops-aspect-ratios"] = "{string}";
            var uri = "https://*.cognitiveservices.azure.com/computervision/imageanalysis:analyze?api-version=2022-10-12-preview&" + queryString;

            HttpResponseMessage response;

            // Request body
            byte[] byteData = Encoding.UTF8.GetBytes("{body}");

            using (var content = new ByteArrayContent(byteData))
            {
               content.Headers.ContentType = new MediaTypeHeaderValue("< your content type, i.e. application/json >");
               response = await client.PostAsync(uri, content);
            }

        }
    }
}	
// // This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)
import java.net.URI;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class JavaSample 
{
    public static void main(String[] args) 
    {
        HttpClient httpclient = HttpClients.createDefault();

        try
        {
            URIBuilder builder = new URIBuilder("https://*.cognitiveservices.azure.com/computervision/imageanalysis:analyze?api-version=2022-10-12-preview");

            builder.setParameter("features", "{string}");
            builder.setParameter("language", "en");
            builder.setParameter("smartcrops-aspect-ratios", "{string}");

            URI uri = builder.build();
            HttpPost request = new HttpPost(uri);
            request.setHeader("Content-Type", "application/json");
            request.setHeader("Ocp-Apim-Subscription-Key", "{subscription key}");


            // Request body
            StringEntity reqEntity = new StringEntity("{body}");
            request.setEntity(reqEntity);

            HttpResponse response = httpclient.execute(request);
            HttpEntity entity = response.getEntity();

            if (entity != null) 
            {
                System.out.println(EntityUtils.toString(entity));
            }
        }
        catch (Exception e)
        {
            System.out.println(e.getMessage());
        }
    }
}


<!DOCTYPE html>
<html>
<head>
    <title>JSSample</title>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
</head>
<body>

<script type="text/javascript">
    $(function() {
        var params = {
            // Request parameters
            "features": "{string}",
            "language": "en",
            "smartcrops-aspect-ratios": "{string}",
        };
      
        $.ajax({
            url: "https://*.cognitiveservices.azure.com/computervision/imageanalysis:analyze?api-version=2022-10-12-preview&" + $.param(params),
            beforeSend: function(xhrObj){
                // Request headers
                xhrObj.setRequestHeader("Content-Type","application/json");
                xhrObj.setRequestHeader("Ocp-Apim-Subscription-Key","{subscription key}");
            },
            type: "POST",
            // Request body
            data: "{body}",
        })
        .done(function(data) {
            alert("success");
        })
        .fail(function() {
            alert("error");
        });
    });
</script>
</body>
</html>

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
    
    NSString* path = @"https://*.cognitiveservices.azure.com/computervision/imageanalysis:analyze?api-version=2022-10-12-preview";
    NSArray* array = @[
                         // Request parameters
                         @"entities=true",
                         @"features={string}",
                         @"language=en",
                         @"smartcrops-aspect-ratios={string}",
                      ];
    
    NSString* string = [array componentsJoinedByString:@"&"];
    path = [path stringByAppendingFormat:@"?%@", string];

    NSLog(@"%@", path);

    NSMutableURLRequest* _request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:path]];
    [_request setHTTPMethod:@"POST"];
    // Request headers
    [_request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
    [_request setValue:@"{subscription key}" forHTTPHeaderField:@"Ocp-Apim-Subscription-Key"];
    // Request body
    [_request setHTTPBody:[@"{body}" dataUsingEncoding:NSUTF8StringEncoding]];
    
    NSURLResponse *response = nil;
    NSError *error = nil;
    NSData* _connectionData = [NSURLConnection sendSynchronousRequest:_request returningResponse:&response error:&error];

    if (nil != error)
    {
        NSLog(@"Error: %@", error);
    }
    else
    {
        NSError* error = nil;
        NSMutableDictionary* json = nil;
        NSString* dataString = [[NSString alloc] initWithData:_connectionData encoding:NSUTF8StringEncoding];
        NSLog(@"%@", dataString);
        
        if (nil != _connectionData)
        {
            json = [NSJSONSerialization JSONObjectWithData:_connectionData options:NSJSONReadingMutableContainers error:&error];
        }
        
        if (error || !json)
        {
            NSLog(@"Could not parse loaded json with error:%@", error);
        }
        
        NSLog(@"%@", json);
        _connectionData = nil;
    }
    
    [pool drain];

    return 0;
}

<?php
// This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)
require_once 'HTTP/Request2.php';

$request = new Http_Request2('https://*.cognitiveservices.azure.com/computervision/imageanalysis:analyze?api-version=2022-10-12-preview');
$url = $request->getUrl();

$headers = array(
    // Request headers
    'Content-Type' => 'application/json',
    'Ocp-Apim-Subscription-Key' => '{subscription key}',
);

$request->setHeader($headers);

$parameters = array(
    // Request parameters
    'features' => '{string}',
    'language' => 'en',
    'smartcrops-aspect-ratios' => '{string}',
);

$url->setQueryVariables($parameters);

$request->setMethod(HTTP_Request2::METHOD_POST);

// Request body
$request->setBody("{body}");

try
{
    $response = $request->send();
    echo $response->getBody();
}
catch (HttpException $ex)
{
    echo $ex;
}

?>
########### Python 2.7 #############
import httplib, urllib, base64

headers = {
    # Request headers
    'Content-Type': 'application/json',
    'Ocp-Apim-Subscription-Key': '{subscription key}',
}

params = urllib.urlencode({
    # Request parameters
    'features': '{string}',
    'language': 'en',
    'smartcrops-aspect-ratios': '{string}',
})

try:
    conn = httplib.HTTPSConnection('*.cognitiveservices.azure.com')
    conn.request("POST", "/computervision/imageanalysis:analyze?api-version=2022-10-12-preview&%s" % params, "{body}", headers)
    response = conn.getresponse()
    data = response.read()
    print(data)
    conn.close()
except Exception as e:
    print("[Errno {0}] {1}".format(e.errno, e.strerror))

####################################

########### Python 3.2 #############
import http.client, urllib.request, urllib.parse, urllib.error, base64

headers = {
    # Request headers
    'Content-Type': 'application/json',
    'Ocp-Apim-Subscription-Key': '{subscription key}',
}

params = urllib.parse.urlencode({
    # Request parameters
    'features': '{string}',
    'language': 'en',
    'smartcrops-aspect-ratios': '{string}',
})

try:
    conn = http.client.HTTPSConnection('*.cognitiveservices.azure.com')
    conn.request("POST", "/computervision/imageanalysis:analyze?api-version=2022-10-12-preview&%s" % params, "{body}", headers)
    response = conn.getresponse()
    data = response.read()
    print(data)
    conn.close()
except Exception as e:
    print("[Errno {0}] {1}".format(e.errno, e.strerror))

####################################
require 'net/http'

uri = URI('https://*.cognitiveservices.azure.com/computervision/imageanalysis:analyze?api-version=2022-10-12-preview')
uri.query = URI.encode_www_form({
    # Request parameters
    'features' => '{string}',
    'language' => 'en',
    'smartcrops-aspect-ratios' => '{string}'
})

request = Net::HTTP::Post.new(uri.request_uri)
# Request headers
request['Content-Type'] = 'application/json'
# Request headers
request['Ocp-Apim-Subscription-Key'] = '{subscription key}'
# Request body
request.body = "{body}"

response = Net::HTTP.start(uri.host, uri.port, :use_ssl => uri.scheme == 'https') do |http|
    http.request(request)
end

puts response.body