https://bugs.kde.org/show_bug.cgi?id=373267
Bug ID: 373267 Summary: mergedimage.png has problems of rendering and color-profile in *.kra RGB 16bit files Product: krita Version: 3.1 Beta Platform: Appimage OS: Linux Status: UNCONFIRMED Severity: normal Priority: NOR Component: Color models Assignee: krita-bugs-n...@kde.org Reporter: i...@davidrevoy.com Target Milestone: --- Created attachment 102627 --> https://bugs.kde.org/attachment.cgi?id=102627&action=edit [*.kra file, 16bit, to reproduce the bug] Hi, I test digital-painting with RGB 16bit ClayRGB-elle-V4-srgbtrc *.kra document, and I like it! Smooth gradients, less artefact for mixing colors, precision in blending modes... But! ## The bug: The mergedimage.png (inside the *.kra file) has problems of rendering and color-profile. It's not the same colors than my artwork. If I export my *.kra artwork manually to *.png via Krita GUI; I obtain a 16bit ClayRGB-elle-V4-srgbtrc *.png picture. Here it's fine, color and profile is perfect, even in other apps, imagemagick, etc... But ; the extracted mergedimage.png is not the same: it's a 16bit sRGB-elle-V2-srgbtrc *.png picture with bad color rendering. This bug prevents me to use 16bit for my comic pages on Pepper&Carrot; because my renderfarm script works with the mergedimage.png from my *.kra pages. Screenshot: perceptual comparison of "manually exported PNG" VS "mergedimage.png" : Eg. http://www.peppercarrot.com/extras/forum/2016-12-04_bug-report_color-profile-mergedimage.jpg (source *.kra file to reproduce the bug in attachment) ## Expected: At the save time, convert mergedimage.png to 8bit sRGB-elle-V2-srgbtrc perceptual. If Krita wants to keep a 16bit mergedimage.png, then it has keep the correct colorprofile or be converted (perceptual) to sRGB-elle-V2-srgbtrc. ## Note: For a CMYK 16Bit ISO Coated v2 300%(ECI), the mergedimage.png is correct: it's a RGB 8Bit sRGB-elle-V2-srgbtrc.icc with perceptual rendering. So both of the CMYK 16bit and the mergedimage looks the same. It means probably that the bug happens only with Krita file with this settings: RGB+16bit profiles other than sRGB-elle-V2-srgbtrc.icc. Tested on 3.1RC appimage, ManjaroXFCE. -- You are receiving this mail because: You are watching all bug changes.