-copy1:PreviewImage or -MPImage2 ?

[herb]

Hello Phil,

In post https://exiftool.org/forum/index.php/topic,5258.msg25482.html we discussed some details about MPF tags and MPImage(s) and I learned to extract the embedded MPF-images with

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exiftool -b -PreviewImage       -w <image1>.jpg  MPFImage.jpg
exiftool -b -Copy1:PreviewImage -w <image2>.jpg  MPFImage.jpg
All is working fine.
But when I use -MPImage2 to extract the embedded image I have no success.

From post https://exiftool.org/forum/index.php/topic,8681.msg44553.html I get the impression that orionr (he posted the topic) does export embedded MPF-images with

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exiftool -b -MPImage2       -w <image1>.jpg  MPFImage.jpg
As orionr did not attach the original image, I cannot perform tests.
But I have a question in general:
When can/must -Copy1:Previewimage be used to extract MPF images and when can/must -MPImage2 be used?

Thanks for your help in advance
Best regards
Herb

[Phil Harvey]

Hi Herb,

The first large MPF thumbnail is extracted as PreviewImage.  If there is another preview image elsewhere in the file, then this may be Copy1:PreviewImage, but since ExifTool 10.38 this may be extracted as MPF:PreviewImage.  MPImage2 may exist if there are images other than the large thumbnail in the MPF metadata.

I hope this answers the question.

- Phil

[herb]

Hello Phil,

thanks for your quick reply.
With -PreviewImage and also with -MPF:PreviewImage I can really extract the "PreviewImage". This is new to me.

I hope not to annoy you, when I ask whether somebody can share an image that contains a real MPImage2.

Thanks again and
Best regards
Herb

[Phil Harvey]

Hi Herb,

Sorry for the delay in responding.  Any MPO image should have an MPImage2 (or MPImage3, ...).  If you can't find a sample, send me an email and I'll send one to you.

- Phil

[herb]

Hello Phil,

thanks for your reply and thanks for your offer to send me such an image.
Your comment to look for *.mpo images was help enough. In  meantime I found such images searching the internet.

Thanks again and
Best regards
Herb