Sony peg-nz90 bitmap image ffs Manual Do Utilizador

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 Support 

Notes 

JFIF file format 

Yes 

 

24 bit full colour images 

Yes 

 

8 bit grey scale images 

Yes 

 

Discrete Cosine Transform encoding 

Yes 

 

Huffman encoding 

Yes 

 

Progressive decompression 

Yes 

 

Progressive rendering 

Yes 

 

Pixel density (dots per inch/cm) 

Yes 

 

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)