Opened 5 years ago
Closed 4 years ago
#8120 closed defect (wontfix)
blend filter, documentation
| Reported by: | Michael Koch | Owned by: | Gyan |
|---|---|---|---|
| Priority: | minor | Component: | documentation |
| Version: | git-master | Keywords: | |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Summary of the bug:
The documentation of the blend filter doesn't explain any of the modes. A few modes are self-explaining, but most are not. Better explanations are required. Here are a few:
addition: Output is (A+B), with an upper limit at white level
average: Output is the arithmetic mean of A and B
subtract: Output is (A-B), with a lower limit at black level
difference: Output is the absolute difference of A and B
grainextract: Output is (A-B), shifted to 50% gray level with a lower limit at black level and an upper limit at white level.
darken: Output is the minimum of A and B
lighten: Output is the maximum of A and B
For all other modes I don't know how to describe them.
Change History (2)
comment:1 by , 5 years ago
| Owner: | set to |
|---|---|
| Status: | new → open |
comment:2 by , 4 years ago
| Resolution: | → wontfix |
|---|---|
| Status: | open → closed |
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