Map<String, FractionRgbData> rgbDataMap = new HashMap<String, FractionRgbData>();
for (String character : imagesData.keySet()) {
StringTokenizer st = new StringTokenizer(character, ".");
BufferedImage image = imagesData.get(character);
rgbDataMap.put(st.nextToken(), new FractionRgbData(image));
}
return rgbDataMap;
}