February 2012
Intermediate to advanced
752 pages
20h 7m
English
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JPEG and motion-JPEG (M-JPEG) compression
This chapter describes JPEG, a standard for lossy compression of still images. JPEG is based upon the discrete cosine ransform (DCT). JPEG is rarely used directly in video, but it forms the basis of M-JPEG (used in desktop video editing) and DV compression. Also, JPEG techniques form the core of MPEG.
Motion-JPEG (M-JPEG) refers to the use of a JPEG- like algorithm to compress each field or frame in a sequence of video fields or frames. M-JPEG systems use the methods of JPEG, but rarely (if ever) conform to the ISO/IEC JPEG standard. DV is a specific type of M-JPEG, which is well standardized; it is described in the following chapter, DV compression, on page 505. The I-frame-only variant of MPEG-2 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.