PHP Requires Chilkat v11.4.0+

AI Modify Existing Image with Text Prompt

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Uses an AI text prompt and uploaded image data to modify an existing image and receive the modified output. Chilkat2 PHP

<?php

use Chilkat2\Ai;
use Chilkat2\BinData;
use Chilkat2\JsonObject;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Load the data from an existing image.
$bdImageData = new BinData();
try {
    $bdImageData->LoadFile('qa_data/jpg/kid_blue_coat.jpg');

    $ai = new Ai();

    $ai->Provider = 'openai';

    // Use your provider's API key.
    $ai->ApiKey = 'MY_API_KEY';

    // Choose a model.
    $ai->Model = 'gpt-5.6-terra';

    $askParams = new JsonObject();
    $askParams->UpdateString('image.output_format', 'jpeg');
    $ai->SetAskParams($askParams);

    $ai->InputAddImageData($bdImageData, '');
    $ai->InputAddText('Modify the image by replacing the blue coat with a Metallica T-shirt.');

    // Give the AI some time (2 minutes).
    $ai->IdleTimeoutMs = 120000;

    // Ask the AI for image output.
    $ai->Ask('image');

    // Get the image response data.;
    $ai->GetOutputBd($bdImageData);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

$bdImageData->WriteFile('c:/aaworkarea/out.jpg');

echo "Success.\n";

// -------------------------------
// Sample Input:
// -------------------------------
// 

// -------------------------------
// Sample Output:
// -------------------------------
//