<itemvalue="Raw RGBA format. Unencoded bytes, in RGBA row-primary form with premultiplied alpha, 8 bits per channel."/>
<itemvalue="Raw straight RGBA format. Unencoded bytes, in RGBA row-primary form with straight alpha, 8 bits per channel."/>
<itemvalue="Raw unmodified format. Unencoded bytes, in the image's existing format. For example, a grayscale image may use a single 8-bit channel for each pixel."/>
<itemvalue="Raw extended range RGBA format. Unencoded bytes, in RGBA row-primary form with straight alpha, 32 bit float (IEEE 754 binary32) per channel. Example usage: ```dart import 'dart:ui' as ui; import 'dart:typed_data'; Future<Map<String, double>> getFirstPixel(ui.Image image) async { final ByteData data = (await image.toByteData(format: ui.ImageByteFormat.rawExtendedRgba128))!; final Float32List floats = Float32List.view(data.buffer); return <String, double>{ 'r': floats[0], 'g': floats[1], 'b': floats[2], 'a': floats[3], }; } ```"/>