| 摘要 |
<p>In an image data compression method to be employed in coding digital image data whose pixels are represented by n bits and which include 2<n> different types of runs, while a run length ( l ) of a current run is counted, a value representing a run type of the current run is predicted. The prediction is repeated till a predicted value (pr) coincides with an actual value (r) of the run type of the current run. When a predicted value (pr) does not coincide with the actual value (r) of the run type of the current run, a run length for an imaginary run having the predicted value is regarded as zero and the run length 0 of the imaginary run is entropy coded. On the other hand, when a predicted value (pr) coincides with an actual value (r), the actual run length of the current run is entropy coded. <IMAGE></p> |
