Sony PEG-NZ90 Picsel BITMAP IMAGE File Format Support - Page 5

Picsel Image File Format Support Page 5 JPEG JPEG is a format defined by the ISO Joint Photographic Experts Group. It is well suited to efficient compression of photographs, which it does by deleting unimportant content according to the kind of detail that people notice; in particular, it removes more chrominance (colour) information than luminance (brightness), since the human eye is more sensitive to luminance. Although JPEG is less well suited to cartoon or diagram images, ePAGE will of course render the image data optimally. ePAGE's support for JPEG includes exactly the same features of JPEG as those allowed by almost all other software. JPEG also supports progressive rendering for more satisfying network downloading. Feature JFIF file format 24 bit full colour images 8 bit grey scale images Discrete Cosine Transform encoding Huffman encoding Progressive decompression Progressive rendering Pixel density (dots per inch/cm) Support Yes Yes Yes Yes Yes Yes Yes Yes Notes Future Support Picsel continuously strives to enhance the feature set of its software. In addition to the above features supported in Version 1.0, the following features are planned to be incorporated in future versions of the Picsel software. (The ordering in the list does not imply any measure of priority among the items.) JPEG2000 file format Thumbnail image (uncompressed, indexed colour, JPEG compressed)