https://bugs.kde.org/show_bug.cgi?id=420811
Bug ID: 420811 Summary: Aliasing problem with Perspective tool + nearest neighbor filter Product: krita Version: 4.2.9 Platform: Mint (Debian based) OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: Tools/Transform Assignee: krita-bugs-n...@kde.org Reporter: elodrei...@free.fr Target Milestone: --- Created attachment 128034 --> https://bugs.kde.org/attachment.cgi?id=128034&action=edit Left : image before transformation (hard edges) - Right : image after transformation (anti aliasing effect) SUMMARY Transforming an image with "Transform tool-> Perspective-> Filter: Nearest Neighbor should not produce an anti aliasing effect, but it is. STEPS TO REPRODUCE 1. Load an image with hard edges 2. Select the Transform tool 3. Choose "Perspective" in the tool options 4. Choose "Filter: Nearest Neighbor 5. Clic the image 6. Move one of the four small squares at the corners of the image to distort it 7. Press enter 8. Zoom on the image. OBSERVED RESULT Despite the filter "nearest neighbor", an anti aliasing effect has been added. EXPECTED RESULT No anti aliasing effect (hard edges) SOFTWARE/OS VERSIONS Linux/KDE Plasma: Linux Mint 19.3 (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION I have attached an image as an example: - Left : image before transformation (hard edges) - Right : image after transformation (anti aliasing effect) -- You are receiving this mail because: You are watching all bug changes.