Is it possible to regenerate the thumbnail for only one photo?

[Per Funke]

Or you could just right click the thumbnail and choose "Recreate selected
thumbnails"
After having done that for a number of times and weeks I'd ask myself, how
do I recalculate all checksums for all images?
But I guess there's a good answer to that too??? Perhaps the checksum is
recalculated when the Thumbnails is updated??
:0))
Besides, I'm all for Andreas Schleth's suggestion. Good idea.

On Thu, Apr 20, 2023 at 10:05 AM Andreas Schleth <schleth_es at web.de> wrote:

> Hi Johannes,
> This is a function I did not find for many years...
> So how about renaming the menu entry to "update checksum & thumbnail" ?
> Cheers, Andreas
>
>
> Am 19. April 2023 23:55:49 MESZ schrieb Johannes Zarl-Zierl <
> johannes at zarl-zierl.at>:
>
>> Hi Constantin,
>>
>>
>> Am Mittwoch, 19. April 2023, 11:06:22 CEST schrieb Constantin Orăsan:
>>
>>> As the subject says, I wonder whether it is possible to regenerate the
>>> thumbnail of one photo. I edited a photo externally (I cropped it). I kept
>>> the name and kphotoalbum kept the tags I assigned (as it should). However,
>>> the photo still has the old thumbnail. Is there a way to regenerate the
>>> thumbnail for only that image, not for the whole collection.
>>>
>>
>> Yes, there is:
>> Select the changed image(s) and select "Recalculate Checksum" from the
>> Maintenance menu.
>>
>> When you change images (even without visible changes) you should always
>> recalculate the image checksum so that KPhotoAlbum can recognize renamed files
>> without losing the tag data etc. Once KPhotoAlbum realizes that the checksum
>> was changed, it also recreates the thumbnail...
>>
>> Cheers,
>>   Johannes
>>
>> --
> Diese Nachricht wurde von meinem Android-Gerät mit K-9 Mail gesendet.
>
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