| Summary: | Black lines on the top and left edges appear when rotating a video by 180 degrees | ||
|---|---|---|---|
| Product: | [Applications] kdenlive | Reporter: | secretagent0016 |
| Component: | Rendering & Export | Assignee: | Jean-Baptiste Mardelle <jb> |
| Status: | REPORTED --- | ||
| Severity: | normal | CC: | snd.noise |
| Priority: | NOR | ||
| Version First Reported In: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | Manjaro | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
| Attachments: |
Attachment contains image before and after rotation by 180 degrees
rotation |
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Created attachment 137278 [details]
rotation
Seems to be working as expected now, right?
Please test with latest appimage... Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone! (In reply to farid from comment #2) > Please test with latest appimage... I tried with the latest appimage (21.04.0), and the issue is still there. The problem is when the image is rotated by 180 degrees. In your attachment, that is the last frame of the video. You can render it as images sequence, so that you can see each frame individually. |
Created attachment 131249 [details] Attachment contains image before and after rotation by 180 degrees SUMMARY When rotating a video by 180 degrees, on top and on left edge black lines appear that are 1 pixel wide. The same happens if an image is rotated (See Attachment) STEPS TO REPRODUCE 1. Load image (with exact dimensions as project) 2. Rotate that image by 180 degrees using Rotate (keyframable) 3. Extract frame, or render as image sequence to get rotated image OBSERVED RESULT On top and on left 1 pixel wide lines appear, and on bottom and right image is cropped by 1 pixel. The color of those lines that appear is the background color chosen in rotation (it is black when the background is transparent). EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION It seems that the center of rotation is a particular pixel, and not the center of image, which would be on the line between pixels.