MATLAB VIDEO AND IMAGE PROCESSING BLOCKSET 3 Guide de l'utilisateur Page 112

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4 Conversions
17 Examine the signal dimensions in your model. The Chroma Resampling
block downsamples the Cb and Cr components of the image from 206-by -346
matrices to 206-by-173 matrices. These matrices require less bandwidth
for transmission while still communicating the information necessary to
recover the image a fter it is transmitted.
You have used the Chroma Resampling block to downsample the Cb and
Cr components of an image. For more information about this block, see the
Chroma Resampling block reference page in the Video and Image Processing
Blockset Reference.
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