Page MenuHomePhabricator
Create Task
Maniphest T29340

Colored pixels remain unchanged, even when sliding the Level Window slider to low numbers
Open, NormalPublic
Actions

Description

From the image rendering checklist by Shuhuan Xiao.
OS: Ubuntu 22.04.1 LTS

I'm unable to recreate the same on Ubuntu 20.04.

Checklist Item

  • Use the DataManager to turn „rgbImage“ visible and „ramp“ and „rgbaImage“ invisible; test the LevelWindow

Expected Result

  • Only the image „rgbImage“ is visible and the displayed color range changes in accordance with the setting of the LevelWindow Slider.

Observed Result

  • Note sure if the values of colored pixels are supposed to remain unchanged, even when sliding the LevelWindow Slider to very low numbers (~-1e30)

Event Timeline

• s349i triaged this task as Normal priority.Oct 10 2022, 10:58 AM
• s349i created this task.
• s349i updated the task description. (Show Details)Oct 10 2022, 11:01 AM
• s349i updated the task description. (Show Details)Oct 10 2022, 11:04 AM
• s349i added a project: Missing Info.
floca raised the priority of this task from Normal to Unbreak Now!.Oct 13 2022, 10:37 AM
s434n added a subscriber: s434n.Oct 13 2022, 10:51 AM

As far as I can tell, this is the expected behavior. Any voxel that has a (greyscale) value above the level-window range is shown completely white. The colors only extend this to multiple channels, but the behavior is still the same. So with very low level-window, the colors are expected to stay visible very strongly

s434n added a project: Request for Discussion.Oct 17 2022, 4:43 PM
kislinsk lowered the priority of this task from Unbreak Now! to Normal.Oct 19 2022, 10:26 AM
kislinsk removed a project: Request for Discussion.
kislinsk edited projects, added Next Milestone; removed MITK (v2022.10).
kislinsk added a subscriber: kislinsk.

I think it actually is an issue or at least unexpected. The level window seems to have trouble with color images in general.

MITK · MIC · IMSY · DKFZ