Automatic threshold command failing on bi-level images
- Dominant language
- Java
- Stars
- 786
- Forks
- 267
- PR merge metrics
- No merged PRs in 30d
Description
Several of the built-in automatic thresholding modes (`Image -> Adjust -> Threshold...`) do not work on bi-level images, as they probably should (IJ 1.53v). These are
* Default (which is?)
* Intermodes
* IsoData
* Li
* Minimum
* Renyi Entropy
* Triangle
* Yen
The attached example is a binary image with gray values 17 and 18 only:

Contributor guide
No contributing guide indexed for this repository
Research direction
No source file or test is named. First reproduce the failure through Image - > Adjust - > Threshold... using the attached bi-level image with gray values 17 and 18, then locate the implementations of the listed automatic thresholding modes. Done means the affected modes, including Default, Intermodes, IsoData, Li, Minimum, Renyi Entropy, Triangle, and Yen, work on this image and have verified behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- computer-vision
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100