// Load raw image into memory
FileIn fin(IMAGE_FILE_PATH);
if (!fin.IsOpen()) 
	{ Exclamation("Unable to open file"); return; }
String raw = fin.Get((dword)fin.GetSize());

// Convert String to uncompressed Image
Image img = StreamRaster::LoadStringAny(raw);
// If you know the image format you could also use:
// Image img = JPGRaster().LoadString(raw);
if (IsNull(img)) 
	{ Exclamation("Unknown/Bad image format"); return; }

// If you need to process the image use an ImageBuffer
ImageBuffer ib(img);
RGBA *q = ~ib;
RGBA *eoi = q + ib.GetLength();
while (q < eoi) {
	// Do something to *q
	++q;
}