addSeriesMeta("StructureSize", ras.readInt());
addSeriesMeta("DimensionX", ras.readInt());
addSeriesMeta("DimensionY", ras.readInt());
ras.seek(32);
addSeriesMeta("ThumbnailX", ras.readInt());
addSeriesMeta("ThumbnailY", ras.readInt());
// pixel sizes are stored in meters, we need them in microns
pixelSizeX = ras.readDouble() * 1000000;
pixelSizeY = ras.readDouble() * 1000000;