[comp.graphics] Anyone heard of ECOMP?

dkelly@npiatl.UUCP (Dwight Kelly) (02/12/90)

I just got a letter from a company called Electronics for Imaging 
that has a C library called ECOMP.  They say:

"The ECOMP software module uses adaptive discrete cosine transform and
Huffman coding to compress and decompress digitial images. The degree of
compression is determined by the actual image content and the user's desired
quality of the image after decompression.  The algorithm is non-lossless;
however, loss occurs only on the first compression, decompression cycle.
Once an image has compressed at the specified quality level, any subsequent
compression cycle will be practically lossless.
....
A compress level of 20:1 is consistently acheved on typical images used in
high-quality electronic publishing. The algorithm used in the ECOMP software
module conforms to the emerging JPEG standard."


Now a few questions:
	1)  has anyone heard of these guys?
	2)  doesn't sound like they are just quantizing a 24bit image
	    down to n-bits (user level of quality) and then compressing
	    the image.
	3)  anyone have code to do a "discrete cosine transform"
	4)  what is the "emerging JPEG standard?"


Thanks,
Dwight Kelly
Network Publications, Inc.
Atlanta, GA