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Obtain coordinates of objects in an image

Post an image body and a comment in English and receive up to 6 sets of coordinates of given objects. You can request point coordinates as well as rectangle coordinates. Maximum image size on one side is 500 pixels. Images larger than that will be downscaled on the worker's interface.

Image-to-Coordinates captcha example, select objects on the picture
Image-to-Coordinates captcha example, draw a rectangle above objects
An example of "points" and "rectangles" tasks
Python
Node.js
Go
PHP
bash

How to solve Image to coordinates in Python

#pip3 install anticaptchaofficial

from anticaptchaofficial.imagetocoordinates import *

solver = imagetocoordinates()
solver.set_verbose(1)
solver.set_key("YOUR_KEY")
solver.set_mode("points")
solver.set_comment("Select objects in specified order")

coordinates = solver.solve_and_return_solution("coordinates.png")
if coordinates != 0:
    print("coordinates: ", coordinates)
else:
    print("task finished with error "+solver.error_code)

How to solve Image to coordinates in Node.js

//npm install @antiadmin/anticaptchaofficial
//https://github.com/anti-captcha/anticaptcha-npm

const ac = require("@antiadmin/anticaptchaofficial");
const fs = require('fs');

const captcha = fs.readFileSync('captcha.png', { encoding: 'base64' });

ac.setAPIKey('YOUR_API_KEY_HERE');

//Specify softId to earn 10% commission with your app.
//Get your softId here: https://anti-captcha.com/clients/tools/devcenter
ac.setSoftId(0);

ac.solveImageToCoordinates(captcha, "Select all objects in specified order", "points")
    .then(coordinates => console.log('image coordinates:', coordinates))
    .catch(error => console.log('test received error '+error));

How to solve Image to coordinates in Go

// Install with:
// go get github.com/anti-captcha/anticaptcha-go

package main

import (
    "encoding/base64"
    "fmt"
    "github.com/anti-captcha/anticaptcha-go"
    "log"
)

func main() {
    // Create API client and set the API Key
    ac := anticaptcha.NewClient("API_KEY_HERE")

    // set to 'false' to turn off debug output
    ac.IsVerbose = true

    // Specify softId to earn 10% commission with your app.
    // Get your softId here: https://anti-captcha.com/clients/tools/devcenter
    //ac.SoftId = 1187

    // Make sure the API key funds balance is positive
    balance, err := ac.GetBalance()
    if err != nil {
        log.Fatal(err)
        // Exit program to make sure you don't DDoS API with requests, while having empty balance
        return
    }
    fmt.Println("Balance:", balance)

    // Solve image-to-coordinates captcha
    imageData, err := ac.ReadImageFile("coordinates.jpg")
    if err != nil {
        log.Fatal(err)
    }
    solution, err := ac.SolveImageToCoordinates(base64.StdEncoding.EncodeToString(imageData), anticaptcha.ImageToCoordinates{
        Comment: "Select object in the specified order",
        Mode:    "points",
    })
    if err != nil {
        log.Fatal(err)
    }
    fmt.Println("Objects X,Y coordinates:", solution)
}

How to solve Image to coordinates in PHP

//git clone https://github.com/anti-captcha/anticaptcha-php.git

include("../anticaptcha.php");
include("../imagetocoordinates.php");

$api = new ImageToCoordinates();
$api->setVerboseMode(true);

//your anti-captcha.com account key
$api->setKey(readline("You API key: "));

//setting file
$api->setFile("captcha.jpg");
$api->setComment("Select all elephants");
$api->setMode("rectangles");

//Specify softId to earn 10% commission with your app.
//Get your softId here: https://anti-captcha.com/clients/tools/devcenter
$api->setSoftId(0);

if (!$api->createTask()) {
    $api->debout("API v2 send failed - ".$api->getErrorMessage(), "red");
    return false;
}

$taskId = $api->getTaskId();


if (!$api->waitForResult()) {
    $api->debout("could not solve captcha", "red");
    $api->debout($api->getErrorMessage());
} else {
    $coordinates    =   $api->getTaskSolution();
    echo "\nresult:\n";
    print_r($coordinates);
    //check result, then if results is wrong:
    $api->reportIncorrectImageCaptcha();
}

How to solve Image to coordinates in bash

curl -i -H "Accept: application/json" \
-H "Content-Type: application/json" \
-X POST -d '{
    "clientKey":"YOUR_API_KEY_HERE",
    "task":
        {
            "type":"ImageToCoordinatesTask",
            "body":"BASE64_BODY_HERE__NO_NEWLINES__NO_EXTRA_TAGS__ONLY_CLEAN_BASE64",
            "comment":"Select all elephants",
            "mode":"rectangles"
        },
    "softId": 0
}' https://api.anti-captcha.com/createTask

Task creation object

Property Type Required Purpose
type String Yes ImageToCoordinatesTask
Defines the type of task.
body String Yes File body encoded in base64. Make sure to send it without line breaks. Do not include 'data:image/png,' or similar tags, only clean base64!
comment String No Comments for the task in English characters only. Example: "Select objects in specified order" or "select all cars".
mode String No Task mode, can be "points" or "rectangles". The default is "points".
websiteURL String No Optional parameter to distinguish source of image captchas in spending statistics.

Task solution object

Property Type Purpose
coordinates String Array of set of coordinates. For "points" mode it is (x,y) set. For "rectangles" it is (x1,y1,x2,y2), starting from top-left to bottom-right. Coordinates start in the top-left corner.

Response example

{
    "errorId":0,
    "status":"ready",
    "solution":
    {
      "coordinates":[
        [17,48,54,83],
        [76,93,140,164]
      ]
    },
    "cost":"0.000700",
    "ip":"46.98.54.221",
    "createTime":1472205564,
    "endTime":1472205570,
    "solveCount":"0"
}