The usage of KWEII Wavelet-based Compressed RAW format for the purpose of camera inner storage has following advantages over JPEG:

1. Wavelet compression takes less time than JPEG compression does. RAW data compression leads to speeding up of the capturing process.
2. If two same-size compressed images are compared, the RAW compressed file has better quality than JPEG does. (Or, for the same quality, RAW compressed file is smaller).
3. Preparation of a small version of an image for its displaying on a phone screen for a quick check or sending it via radio channel becomes easier and does not require an extra storage space. A Wavelet compressed file has a special structure: it contains smaller versions of the image as its part. For example, if camera provides a 1,2 Mpix image, to get a VGA-size image only a part of a compressed file should be used for decompression and processing. Even smaller parts will be used for 1/4 VGA-size and 1/16 VGA-size images.
        Two processes should be clearly distinguished:
   • Image processing for data storing;
   • Image processing for displaying on a cell phone screen.
        These processes are independent and second process does not assume that the first process should be previously completed.
4. Because of Wavelet specifics, the noise level is automatically reduced upon resizing.
5. For data storing purposes, an image might be processed with phone CPU in a background (with lower priority) during a longer period of time and, as a result, a better quality of an image is provided.