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Intra-frame coding
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<h2 id="coding-process">Coding process</h2> <p>Data is usually read from a video camera or a video card in the <a href="/facts/YCbCr/gfQaSqUA">YCbCr</a> data format (often informally called <a href="/facts/YUV/w8hA6xnh">YUV</a> for brevity). The coding process varies greatly depending on which type of encoder is used (e.g., <a href="/facts/JPEG/HQ8QS3uB">JPEG</a> or <a href="/facts/H.264/MPEG-4_AVC/soCzKcmJ">H.264</a>), but the most common steps usually include: partitioning into <a href="/facts/Macroblock/L7XPoRNP">macroblocks</a>, transformation (e.g., using a <a href="/facts/Discrete_cosine_transform/gPpDhPwP">DCT</a> or <a href="/facts/Discrete_wavelet_transform/19DVnk4n">wavelet</a>), <a href="/facts/Quantization_(image_processing)/hXzWCrmY">quantization</a> and <a href="/facts/Entropy_encoding/44I0n8F8">entropy encoding</a>. </p> <h2 id="applications">Applications</h2> <p>It is used in codecs like <a href="/facts/ProRes_422/Ll6fWKvt">ProRes</a>: a <a href="/facts/Group_of_pictures/WMwn2drD">group of pictures</a> codec without <a href="/facts/Inter_frame/NgBrpVDl">inter frames</a>. </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Video_compression/gMFuY4FT">Video compression</a></li> <li><a href="/facts/I-Frame_Delay/e5NH0qmX">I-Frame Delay</a></li> <li><a href="/facts/Inter_frame/NgBrpVDl">Inter frame</a></li> <li><a href="/facts/Group_of_pictures/WMwn2drD">Group of pictures</a> application of frame types</li> <li><a href="/facts/Motion_compensation/6BM2Ylxn">Motion compensation</a></li></ul> <h2 id="external-links">External links</h2> Wikimedia Commons has media related to Intra-frame coding. <ul><li><a href="http://www.cs.cf.ac.uk/Dave/Multimedia/node248.html">http://www.cs.cf.ac.uk/Dave/Multimedia/node248.html</a></li></ul>