(VB.NET) AI Modify Existing Image with Text Prompt

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Note: This example requires Chilkat v11.4.0 or greater.

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Dim success As Boolean = False

' 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.
Dim bdImageData As New Chilkat.BinData
success = bdImageData.LoadFile("qa_data/jpg/kid_blue_coat.jpg")
If (success = False) Then
    Debug.WriteLine(bdImageData.LastErrorText)
    Exit Sub
End If


Dim ai As New Chilkat.Ai

ai.Provider = "openai"

' Use your provider's API key.
ai.ApiKey = "MY_API_KEY"

' Choose a model.
ai.Model = "gpt-5"

Dim askParams As New Chilkat.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.
success = ai.Ask("image")
If (success = False) Then
    Debug.WriteLine(ai.LastErrorText)
    Exit Sub
End If


' Get the image response data.;
success = ai.GetOutputBd(bdImageData)
If (success = False) Then
    Debug.WriteLine(ai.LastErrorText)
    Exit Sub
End If


bdImageData.WriteFile("c:/aaworkarea/out.jpg")

Debug.WriteLine("Success.")

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' Sample Input:
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' Sample Output:
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