https://bugs.kde.org/show_bug.cgi?id=468609
--- Comment #1 from caulier.gil...@gmail.com --- Right, from Image MAgick, we can see : gilles@U22:/mnt/data/Images/HEIF$ identify test.heif test.heif HEIC 3237x2007 3237x2007+0+0 10-bit YCbCr 0.020u 0:00.011 >From the console, when loading file on editor, libheif identify this file with 8 bits color depth: digikam.dimg: "/mnt/data/Images/HEIF/test.heif" : "HEIF" file identified digikam.dimg.heif: HEIF image size: ( 3237 x 2007 ) digikam.dimg.heif: Decoded HEIF image properties: size( 3237 x 2007 ), Alpha: false , Color depth : 8 digikam.dimg.heif: HEIF data container: 0x55acd15cdb00 digikam.dimg.heif: HEIC bytes per line: 9728 digikam.dimg.heif: Color bytes depth: 8 So problem must be located in how we manage libheif in the HEIF loader, as Image Magick which uses libheif too, is able to convert to PNG with preserving the color depth : gilles@U22:/mnt/data/Images/HEIF$ convert test.heif test.png gilles@U22:/mnt/data/Images/HEIF$ identify test.png test.png PNG 3237x2007 3237x2007+0+0 16-bit sRGB 17.1832MiB 0.000u 0:00.000 Probably this code must be used : https://github.com/ImageMagick/ImageMagick/blob/main/coders/heic.c#L354 In digiKam, we uses : https://invent.kde.org/graphics/digikam/-/blob/master/core/dplugins/dimg/heif/dimgheifloader_load.cpp#L389 Gilles Caulier -- You are receiving this mail because: You are watching all bug changes.
