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Maniphest T24020

MitkCLGlobalImageFeatures miscalculates DifferenceVariance texture feature
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Description

When run, the output of this feature is always 0. I found a typo in file "Modules/Classification/CLUtilities/include/itkEnhancedHistogramToTextureFeaturesFilter.hxx", line 257:

sumVariance += (i-diffAverage)*(i-diffAverage) * frequency;

should be corrected to

diffVariance += (i-diffAverage)*(i-diffAverage) * frequency;

Turns out the DifferenceVariance value was never calculated in the first place (and sumVariance is also wrong, as the diffVariance calculation was added to it instead).

Event Timeline

ac3957 created this task.Jan 9 2018, 4:57 AM
kislinsk assigned this task to goetzm.Jan 18 2018, 12:47 PM
kislinsk removed goetzm as the assignee of this task.
kislinsk triaged this task as Normal priority.
kislinsk added a project: Restricted Project.
kislinsk added a subscriber: goetzm.
kislinsk closed this task as Wontfix.May 26 2020, 11:16 AM
kislinsk claimed this task.
kislinsk added a project: Auto-closed.
kislinsk added a subscriber: kislinsk.

Hi there! 🙂

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kislinsk removed kislinsk as the assignee of this task.May 26 2020, 12:05 PM
kislinsk removed a subscriber: kislinsk.
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