CS716 MIDTERM PAST PAPER BY GETCAREERALERT
CS716 MIDTERM PAST PAPER
Thus, beginning from a picture that is encoded as far as luminance and chrominance parts, the initial step is to average the chrominance values more than two-bytwo-pixel squares.
This decreases the size of the chrominance data by a component of four while safeguarding all the first brilliance data. The outcome is a huge level of pressure without an observable loss of picture quality.
The following stage is to separate the picture into eight-by-eight-pixel blocks and to pack the data in each square as a unit. This is finished by applying a numerical procedure known as the discrete cosine change, whose subtleties need not concern us here.
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The significant point is that this change changes over the first eight-by-eight square into another square whose passages reflect how the pixels in the first square connect with one another instead of the genuine pixel values. CS716 MIDTERM PAST PAPER
Inside this new square, values under a foreordained limit are then supplanted by zeros, mirroring the way that the progressions addressed by these qualities are too unobtrusive to ever be distinguished by the natural eye.
For instance, on the off chance that the first square contained a checkerboard design, the new square could mirror a uniform normal tone. (A common eight-by-eight-pixe square would address a tiny square inside the picture so the natural eye wouldn’t recognize the checkerboard appearance at any rate.) CS716 MIDTERM PAST PAPER
At this point, more conventional run-length encoding, relative encoding, and variable-length encoding methods are applied to get extra pressure.
CS716 MIDTERM PAST PAPER