[Qgis-user] A few question

[blubee blubeeme]

I have some aerial images;
I created a new raster layer and imported the images named IMG_xxx.JPG

Watching the shell I get this output:
Warning 4: Failed to open /usr/share/qgis/resources/data/world_map.gpkg:
Permission denied.

then one of the below messages for each picture that's being imported.
proj_concatoperation_get_step_count: Object is not a ConcatenatedOperation

The files are successfully imported though.

After that I go select misc -> merge; I selected all the layers in the
input selection then run the process; here's the output log:
QGIS version: 3.10.4-A Coruña
Qt version: 5.12.8
GDAL version: 3.0.4
GEOS version: 3.8.0-CAPI-1.13.1
PROJ version: Rel. 6.3.1, February 10th, 2020
Processing algorithm…
Algorithm 'Merge' starting…
Input parameters:
{ 'DATA_TYPE' : 5, 'EXTRA' : '', 'INPUT' :
['/home/bb/Pictures/g/100MEDIA/IMG_0563.JPG','/home/bb/Pictures/IMG_0564.JPG','/home/bb/Pictures/IMG_0565.JPG','/home/bb/Pictures/IMG_0566.JPG','/home/bb/Pictures/IMG_0567.JPG','/home/bb/Pictures/IMG_0568.JPG','/home/bb/Pictures/IMG_0569.JPG','/home/bb/Pictures/IMG_0570.JPG','/home/bb/Pictures/IMG_0571.JPG','/home/bb/Pictures/IMG_0572.JPG','/home/bb/Pictures/IMG_0573.JPG','/home/bb/Pictures/IMG_0574.JPG','/home/bb/Pictures/IMG_0575.JPG','/home/bb/Pictures/IMG_0576.JPG','/home/bb/Pictures/IMG_0577.JPG','/home/bb/Pictures/IMG_0578.JPG','/home/bb/Pictures/IMG_0579.JPG','/home/bb/Pictures/IMG_0580.JPG','/home/bb/Pictures/IMG_0581.JPG','/home/bb/Pictures/IMG_0582.JPG','/home/bb/Pictures/IMG_0583.JPG','/home/bb/Pictures/IMG_0584.JPG','/home/bb/Pictures/IMG_0585.JPG','/home/bb/Pictures/IMG_0586.JPG','/home/bb/Pictures/IMG_0587.JPG','/home/bb/Pictures/IMG_0588.JPG','/home/bb/Pictures/IMG_0589.JPG','/home/bb/Pictures/IMG_0590.JPG'],
'NODATA_INPUT' : None, 'NODATA_OUTPUT' : None, 'OPTIONS' : '', 'OUTPUT' :
'TEMPORARY_OUTPUT', 'PCT' : False, 'SEPARATE' : False }

GDAL command:
gdal_merge.py -ot Float32 -of GTiff -o
/tmp/processing_1e6f694008d5443481b352b46367bb19/c6d4199e2d3c4023aaf0cef72b6d9d26/OUTPUT.tif
--optfile
/tmp/processing_1e6f694008d5443481b352b46367bb19/65b50c4c9a7044cfb210b0a46cead53c/mergeInputFiles.txt
GDAL command output:
0...10...20...30...40...50...60...70...80...90...100 - done.

Execution completed in 17.24 seconds
Results:
{'OUTPUT':
'/tmp/processing_1e6f694008d5443481b352b46367bb19/c6d4199e2d3c4023aaf0cef72b6d9d26/OUTPUT.tif'}

Loading resulting layers
Algorithm 'Merge' finished

the merged image is a .tiff file that's totally empty

running file on the tmp file:
/tmp/processing_1e6f694008d5443481b352b46367bb19/c6d4199e2d3c4023aaf0cef72b6d9d26/OUTPUT.tif:
TIFF image data, little-endian, direntries=13, height=3648, bps=170,
compression=none, PhotometricIntepretation=BlackIsZero, width=5472

output from the file command for one of the input images:
file Pictures/IMG_0586.JPG
Pictures/IMG_0586.JPG: JPEG image data, Exif standard: [TIFF image data,
little-endian, direntries=18, height=3648, bps=866, description=default,
manufacturer=Hasselblad, model=L1D-20c, orientation=upper-left,
width=5472], baseline, precision 8, 5472x3648, components 3

Is this just an issue with the images or something wrong my steps to create
orthomosaic from a series of photos.

Best
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