Obtaining an image from encoded JSON information

This inquiry pertains to Visual Basic .NET 2010

How do I extract the image from this encoded JSON string? What type of encoding is being used here? I'm attempting to capture a screenshot of a website using the Google PageSpeed API.

 "screenshot": {
  "data": "_9j_4AAQSkZJRgABAQAAAQABAAD_2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFx......",
  "height": 240,
  "mime_type": "image/jpeg",
  "width": 320
 }

Answer №1

As mentioned by minitech, strange characters are present in the text. These can be decoded using the following method.

    Dim decodedBytes() As Byte
    Dim encodedString As String = "_9j_4AAQSkZJRgABAQAAAQABAAD_2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj_2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj_wAARCADwAUADASIAAhEBAxEB_8QAHQABAAEFAQEBAAAAAAAAAAAA...[truncated]

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