Table of Contents | 
Results: Up-conversion
Table of Contents | Results: Up-conversion
The results for the down conversion were measured in the same way as the up-conversion timings. The process started with a CIF image and went through successive down-conversions.
| By a factor of 1/2 | By a factor of 1/4 | By a factor of 1/8 | |
| Down-Conversion | 0.0019 seconds | 0.0023 seconds | 0.0025 seconds |
The down conversion appears much faster than the up-conversion process but this is no surprise when we consider the difference in the amount of IO and computation performed. A more meaningful set of timing results is shown below. Here the amount of time taken to convert the image back to its original size (after the up-conversion) is shown.
| By a factor of 1/2 | By a factor of 1/4 | By a factor of 1/8 | |
| Down-Conversion | 0.0072 seconds | 0.0352 seconds | 0.148 seconds |
In each case the image was filtered properly and I did not perform the fast down-conversion that was possible given the knowledge that the image had subsequently been up-converted.