GNU Astronomy Utilities - Bugs: bug #55298, Arithmetic reading 255 on...
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bug #55298: Arithmetic reading 255 on command-line as blank
Submitter: | Mohammad Akhlaghi <makhlaghi> | ||
Submitted: | Thu 27 Dec 2018 05:14:48 PM UTC | ||
Category: | Arithmetic | Severity: | 3 - Normal |
Item Group: | Output not reasonable | Status: | Fixed |
Privacy: | Public | Assigned to: | makhlaghi |
Open/Closed: | Closed |
Thu 27 Dec 2018 05:38:43 PM UTC, comment #1: |
Mohammad Akhlaghi <makhlaghi> |
Thu 27 Dec 2018 05:14:48 PM UTC, original submission:
When you want to select pixels with a label of 255 (for example on NoiseChisel's output) with Arithmetic, it doesn't select them. This is because 255 fits into an unsigned 8-bit value, so it is stored with that type. But being the maximum value, 255 is also the value used for blank in this type.
|
Mohammad Akhlaghi <makhlaghi> |
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Follow 2 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2018-12-27 | makhlaghi | Status | In Progress | Fixed | |
Open/Closed | Open | Closed |
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Corresponding source code
This bug has been fixed and pushed to the main repository.