Status
 | Active |
Investigator(s)
Clemens Neudecker, KB
Dataset
One sample batch
from the Metamorfoze project.
Platform
KB 1 Hadoop Platform
Workflow
The migration is implemented as a batch file, in Java code, and as a Taverna workflow.
Latest Java code, workflow and batch files are available on github.
The workflow comprises of the following steps:
- Recover TIFF file from storage (HDFS)
- Run Exiftool to extract metadata from TIFF
- Migrate TIFF -> JP2 (using Aware JP2K SDK)
- Run Exiftool to extract metadata from JP2
- Run Jpylyzer over the JP2
- Run Probatron validator over Jpylyzer outputs to validate conformance of migrated image to the specified profile
- Use GraphicsMagick to compare TIFF and JP2
- Create report
- Create output package (JP2, results, etc)
- Post files back to relevant storage
Requirements and Policies
- The JP2 files produced by the migration must be valid JP2s (checked with Jpylyzer)
- The JP2 files produced by the migration must adhere to a specific profile (checked with Probatron against Jpylyzer output)
- The Pixel-comparison with the original TIFF image must return identical results (checked with graphicsmagick)
Evaluations
| Metric |
PW catalogue URI |
Datatype |
Description |
Value |
Comments |
|---|---|---|---|---|---|
| NumberOfObjectsPerHour | integer | Number of objects that can be processed per hour |
1341 | Could be used both for component evaluations on a single machine and on entire platform setups |
|
| MigrationCorrectnessInPercent | integer |
Defining a statistical measure for binary evaluations | 100 % |
Between 0 and 100 |
|
| ThroughputGbytesPerMinute |
float |
The throughput of data measured in Gybtes per minute |
0,47 | Specify in Gbytes per minute |
|
| ThroughputGbytesPerHour | float |
The throughput of data measured in Gbytes per hour |
28,16 |
Specify in Gbytes per hour |
|
| ReliableAndStableAssessment | boolean |
Manual assessment on if the experiment performed reliable and stable |
true |
||
| NumberOfFailedFiles | integer |
Number of files that failed in the workflow |
0 |
||
| NumberOfFailedFilesAcceptable | boolean | Manual assessment of whether the number of files that fail in the workflow is acceptable |
true |
||
| QAFalseDifferentPercent | integer | Number of content comparisons resulting in original and migrated different, even though human spot checking says original and migrated similar. | 0 % |
Between 0 and 100 | |
| AverageRuntimePerItemInHours |
float | The average processing time in hours per item |
0.00099 |
Positive floating point number |
|
| AwareCompressRuntimeAvg | integer | Average running time of Aware jp2_compress in milliseconds | 2377 | ||
| JpylyzerCheckRuntimeAvg | integer | Average running time of Jpylyzer validation in milliseconds | 212 | ||
| ProbatronCheckRuntimeAvg | integer | Average running time of Probatron profile validation in milliseconds |
1628 | ||
| KakaduExpandRuntimeAvg | integer | Average running time of Kakadu kdu_expand in milliseconds |
2087 | ||
| GMCompareRuntimeAvg | integer | Average running time of GraphicsMagick pixel comparison in milliseconds |
381 | ||
| AwareCompressRuntimeFull |
Total running time of Aware jp2_compress | 5:18,46 | |||
| JpylyzerCheckRuntimeFull |
Total running time of Jpylyzer validation |
0:28,25 | |||
| ProbatronCheckRuntimeFull |
Total running time of Probatron profile validation |
3:38,18 | |||
| KakaduExpandRuntimeFull |
Total running time of Kakadu kdu_expand |
4:39,54 | |||
| GMCompareRuntimeFull |
Total running time of GraphicsMagick pixel comparison |
0:51,07 | |||
| AwareCompressSuccess |
Success rate of Aware jp2_compress | 100 % | |||
| JpylyzerCheckSuccess |
Success rate of Jpylyzer validation |
100 % | |||
| ProbatronCheckSuccess |
Success rate of Probatron profile validation |
100 % | |||
| KakaduExpandSuccess |
Success rate of Kakadu kdu_expand |
100 % | |||
| GMCompareSuccess |
Success rate of GraphicsMagick pixel comparison |
100 % |
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