https://bugs.kde.org/show_bug.cgi?id=435231

--- Comment #5 from caulier.gil...@gmail.com ---
MAik,

This is the console output when i force to rebuild thumbnails with F5. At this
time 2 item have been generated with alpha layer :

digikam.general: Using  8  CPU core to run threads
digikam.general: Creating a thumbnails task for generating thumbnails
digikam.general: Creating a thumbnails task for generating thumbnails
digikam.general: Creating a thumbnails task for generating thumbnails
digikam.general: Creating a thumbnails task for generating thumbnails
digikam.general: Creating a thumbnails task for generating thumbnails
digikam.general: Creating a thumbnails task for generating thumbnails
digikam.general: Creating a thumbnails task for generating thumbnails
digikam.general: Creating a thumbnails task for generating thumbnails
digikam.general: Action Thread run  8  new jobs
digikam.general: scan mode: ScheduleCollectionScan :: 
("/System/Volumes/Data/Users/gilles/Pictures/FITS/")
digikam.general: Event is dispatched to OSX desktop notifier
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits  (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
digikam.geoiface: ----
digikam.general: Using  8  CPU core to run threads
digikam.general: Action Thread run  1  new jobs
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/eso137_optical_R.fits  (Error #
11 :  "/System/Volumes/Data/Users/gilles/Pictures/FITS/eso137_optical_R.fits:
The file contains data of an unknown image type"
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/flame_ir_B.fits  (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/flame_ir_B.fits: The file
contains data of an unknown image type"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/herca_radio.fits  (Error # 11 :
 "/System/Volumes/Data/Users/gilles/Pictures/FITS/herca_radio.fits: The file
contains data of an unknown image type"
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits  (Error # 11
:  "/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/eso137_optical_R.fits"
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/kepler_xray_he.fits  (Error #
11 :  "/System/Volumes/Data/Users/gilles/Pictures/FITS/kepler_xray_he.fits: The
file contains data of an unknown image type"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/eso137_optical_R.fits"
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/kes73_optical.fits  (Error # 11
:  "/System/Volumes/Data/Users/gilles/Pictures/FITS/kes73_optical.fits: The
file contains data of an unknown image type"
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/m100_ir.fits  (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m100_ir.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/flame_ir_B.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/flame_ir_B.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/herca_radio.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/herca_radio.fits"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits"
digikam.general: Cancel Main Thread
digikam.general: One job is done
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kepler_xray_he.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kepler_xray_he.fits"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kes73_optical.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kes73_optical.fits"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m100_ir.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/eso137_optical_R.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m100_ir.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/flame_ir_B.fits"
digikam.dimg: "/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
: "IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/herca_radio.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/eso137_optical_R.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kepler_xray_he.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kes73_optical.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m100_ir.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/flame_ir_B.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/herca_radio.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/eso137_optical_R.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/eso137_optical_R.fits: The
file contains data of an unknown image type"
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kepler_xray_he.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kes73_optical.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m100_ir.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/flame_ir_B.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/flame_ir_B.fits: The file
contains data of an unknown image type"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/herca_radio.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/herca_radio.fits: The file
contains data of an unknown image type"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits: The file
contains data of an unknown image type"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kepler_xray_he.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kes73_optical.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kepler_xray_he.fits: The file
contains data of an unknown image type"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m100_ir.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kes73_optical.fits: The file
contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/eso137_optical_R.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m100_ir.fits: The file
contains data of an unknown image type"
digikam.dimg: "/System/Volumes/Data/Users/gilles/Pictures/FITS/flame_ir_B.fits"
: "IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/herca_radio.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kepler_xray_he.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/kes73_optical.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.general: Cancel Main Thread
digikam.dimg: "/System/Volumes/Data/Users/gilles/Pictures/FITS/m100_ir.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg: IM to DImg      : 750 750
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 8
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits  (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits: The file
contains data of an unknown image type"
digikam.dimg: IM blob size    : 2250000
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits: The file
contains data of an unknown image type"
digikam.dimg: "/System/Volumes/Data/Users/gilles/Pictures/FITS/b1509_ir_G.fits"
: "IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits  (Error # 11
:  "/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits: The file
contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ic1396a_xray.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/m101_uv.fits  (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m101_uv.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m101_uv.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m101_uv.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m101_uv.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m101_uv.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m101_uv.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m101_uv.fits: The file
contains data of an unknown image type"
digikam.dimg: "/System/Volumes/Data/Users/gilles/Pictures/FITS/m101_uv.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg: IM to DImg      : 3600 2742
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 8
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM to DImg      : 3600 2556
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 8
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM blob size    : 39484800
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM blob size    : 73612800
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM blob size    : 51840000
digikam.dimg: IM blob size    : 103680000
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM blob size    : 103680000
digikam.dimg: IM blob size    : 103680000
digikam.dimg: IM blob size    : 103680000
digikam.dimg: IM blob size    : 103680000
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits  (Error # 11
:  "/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits: The
file contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits: The file
contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits  (Error # 11
:  "/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits: The file
contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg: IM blob size    : 103680000
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/n1929_optical.fits  (Error # 11
:  "/System/Volumes/Data/Users/gilles/Pictures/FITS/n1929_optical.fits: The
file contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n1929_optical.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n1929_optical.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n1929_optical.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n1929_optical.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n1929_optical.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n1929_optical.fits: The file
contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n1929_optical.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg: IM blob size    : 103680000
digikam.dimg: IM to DImg      : 2384 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM blob size    : 68659200
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/n2207_OPT_B.fits  (Error # 11 :
 "/System/Volumes/Data/Users/gilles/Pictures/FITS/n2207_OPT_B.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n2207_OPT_B.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n2207_OPT_B.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n2207_OPT_B.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n2207_OPT_B.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n2207_OPT_B.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n2207_OPT_B.fits: The file
contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n2207_OPT_B.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg: IM to DImg      : 3600 2874
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/n4736_ir.fits  (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n4736_ir.fits: The file
contains data of an unknown image type"
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc281_xray.fits  (Error # 11 :
 "/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc281_xray.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n4736_ir.fits"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc281_xray.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n4736_ir.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc281_xray.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n4736_ir.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n4736_ir.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc281_xray.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n4736_ir.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc281_xray.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/n4736_ir.fits: The file
contains data of an unknown image type"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc281_xray.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc281_xray.fits: The file
contains data of an unknown image type"
digikam.dimg: "/System/Volumes/Data/Users/gilles/Pictures/FITS/n4736_ir.fits" :
"IMAGEMAGICK" file identified
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc281_xray.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg: Try to load image with ImageMagick codecs
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc602_optical_G.fits  (Error #
11 :  "/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc602_optical_G.fits:
The file contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc602_optical_G.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc602_optical_G.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc602_optical_G.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc602_optical_G.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc602_optical_G.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc602_optical_G.fits: The
file contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc602_optical_G.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits  (Error
# 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits: The
file contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits: The
file contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits  (Error # 11
:  "/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits: The
file contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits: The file
contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/m51_optical_B.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6543_optical_B.fits  (Error
# 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6543_optical_B.fits: The
file contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6543_optical_B.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6543_optical_B.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6543_optical_B.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6543_optical_B.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6543_optical_B.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6543_optical_B.fits: The
file contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6543_optical_B.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits  (Error
# 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits: The
file contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits: The
file contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/ngc6240_optical_G.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg: IM to DImg      : 3600 1742
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM blob size    : 82771200
digikam.dimg: IM blob size    : 50169600
digikam.dimg: IM blob size    : 103680000
digikam.dimg: IM to DImg      : 2384 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM to DImg      : 3600 2719
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM blob size    : 68659200
digikam.dimg: IM to DImg      : 3600 2938
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM to DImg      : 3600 3000
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM blob size    : 78307200
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/rcw38_ir.fits  (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/rcw38_ir.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/rcw38_ir.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/rcw38_ir.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/rcw38_ir.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/rcw38_ir.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/rcw38_ir.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/rcw38_ir.fits: The file
contains data of an unknown image type"
digikam.dimg: "/System/Volumes/Data/Users/gilles/Pictures/FITS/rcw38_ir.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg: IM to DImg      : 3600 3000
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM blob size    : 84614400
digikam.general: One job is done
digikam.metaengine: Cannot load metadata from file
/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits  (Error # 11
:  "/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits: The file
contains data of an unknown image type"
digikam.metaengine: Error: source file is not HEIF image.
digikam.general: Trying to get thumbnail with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits"
digikam.general: Trying to get thumbnail with DImg preview for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits"
digikam.general: Trying to get thumbnail from Embedded preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits"
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to get thumbnail from half preview with libraw for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits"
digikam.general: Trying to get thumbnail from Embedded preview with Exiv2 for
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits"
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 : 
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits: The file
contains data of an unknown image type"
digikam.dimg:
"/System/Volumes/Data/Users/gilles/Pictures/FITS/mrk573_radio.fits" :
"IMAGEMAGICK" file identified
digikam.dimg: Try to load image with ImageMagick codecs
digikam.dimg: IM blob size    : 103680000
digikam.dimg: IM blob size    : 103680000
digikam.dimg: IM blob size    : 86400000
digikam.dimg: IM blob size    : 86400000
digikam.general: One job is done
digikam.general: One job is done
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.general: One job is done
digikam.dimg: IM to DImg      : 3600 3600
digikam.dimg: IM QuantumRange : 65535
digikam.dimg: IM Depth        : 16
digikam.dimg: IM Format       : Flexible Image Transport System
digikam.dimg: IM blob size    : 103680000
digikam.general: One job is done
digikam.general: One job is done
digikam.general: One job is done
digikam.dimg: IM blob size    : 103680000
digikam.general: One job is done
digikam.general: List of Pending Jobs is empty
digikam.general: Event is dispatched to OSX desktop notifier
digikam.general: Cancel Main Thread
digikam.general: Cancel Main Thread

screenshot : https://i.imgur.com/FpCW5PG.png

Gilles

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