[digiKam-users] --> EXIF information on NEF and PNG

[Alex Antão]

Hi,

    I've just exported my huge library from Photos.

    No I have 800Gb of photos on my external HD, moved a lot of then on albuns acording to those created in Photos. All OK.

    But... I still have a lot of files on root Folder that were not included in any Album. I want to organize them the fast and easy way possible.

    So, I created a Python script that:

• Takes the file's EXIT data
  
• Extract Original Date from it
  
• Create a directory structure like YEAR/MONTH/DAY (I can choose the level I want) and move the files inside that structure based on the EXIF taken before.
  

     OK, these are working, but I also have a lot of files that are NEF or even PNG (i don't tested yet on MOV, or AVI). Those files does not have EXIF data.

     How can I get Date information from then ? Is it possible ? 

Thanks....

Some have exif date (video may), for others the file date may be usable depending how they where copied - some copy systems change the date, not all.
Some cameras, specially phones use date in the name...

Else you have to guess looking at them...

Jdd
--
Envoyé de mon appareil Android avec Courriel K-9 Mail. Veuillez excuser ma brièveté.

[Photonoxx]

Hi,

I'm a bit surprised for the nef file which usually have exif data. Does those files come from a camera or are they created by a Nikon software like Capture Nx from another file format ?

When you look at the whole metadata, is there some metadata that look like creation date or digitized date ? 

Le mar. 17 sept. 2019 à 22:07, Alex Antão <[hidden email]> a écrit :

Hi,

    I've just exported my huge library from Photos.

    No I have 800Gb of photos on my external HD, moved a lot of then on albuns acording to those created in Photos. All OK.

    But... I still have a lot of files on root Folder that were not included in any Album. I want to organize them the fast and easy way possible.

    So, I created a Python script that:

• Takes the file's EXIT data
  
• Extract Original Date from it
  
• Create a directory structure like YEAR/MONTH/DAY (I can choose the level I want) and move the files inside that structure based on the EXIF taken before.
  

     OK, these are working, but I also have a lot of files that are NEF or even PNG (i don't tested yet on MOV, or AVI). Those files does not have EXIF data.

     How can I get Date information from then ? Is it possible ? 

Thanks....

--

[Gilles Caulier-4]

Hi,

NEF is a RAW container including Exif, Makernotes, and sometimes XMP metadata set by camera. This is true for all RAW files based on TIFF/EP standard, even if RAW format extend the tags list with proprietary values.

In all cases whole Exif are there and mandatory to be post processed with a software as Capture NX. Demosaicing process need to know all shot conditions.

Best

Gilles Caulier 

Le mer. 18 sept. 2019 à 07:35, Nicolas Boulesteix <[hidden email]> a écrit :

Hi,

I'm a bit surprised for the nef file which usually have exif data. Does those files come from a camera or are they created by a Nikon software like Capture Nx from another file format ?

When you look at the whole metadata, is there some metadata that look like creation date or digitized date ? 

Le mar. 17 sept. 2019 à 22:07, Alex Antão <[hidden email]> a écrit :

Hi,

    I've just exported my huge library from Photos.

    No I have 800Gb of photos on my external HD, moved a lot of then on albuns acording to those created in Photos. All OK.

    But... I still have a lot of files on root Folder that were not included in any Album. I want to organize them the fast and easy way possible.

    So, I created a Python script that:

• Takes the file's EXIT data
  
• Extract Original Date from it
  
• Create a directory structure like YEAR/MONTH/DAY (I can choose the level I want) and move the files inside that structure based on the EXIF taken before.
  

     OK, these are working, but I also have a lot of files that are NEF or even PNG (i don't tested yet on MOV, or AVI). Those files does not have EXIF data.

     How can I get Date information from then ? Is it possible ? 

Thanks....

--

[Photonoxx]

Hi,

I just ask for captured nx because it can open non raw file and save it as a nef file embedding original file and non destructive modification information in metadata.

This way, if original file doesn't have exif info it could result in a nef file without creation date metadata

Le mer. 18 sept. 2019 à 07:52, Gilles Caulier <[hidden email]> a écrit :

Hi,

NEF is a RAW container including Exif, Makernotes, and sometimes XMP metadata set by camera. This is true for all RAW files based on TIFF/EP standard, even if RAW format extend the tags list with proprietary values.

In all cases whole Exif are there and mandatory to be post processed with a software as Capture NX. Demosaicing process need to know all shot conditions.

Best

Gilles Caulier 

Le mer. 18 sept. 2019 à 07:35, Nicolas Boulesteix <[hidden email]> a écrit :

Hi,

I'm a bit surprised for the nef file which usually have exif data. Does those files come from a camera or are they created by a Nikon software like Capture Nx from another file format ?

When you look at the whole metadata, is there some metadata that look like creation date or digitized date ? 

Le mar. 17 sept. 2019 à 22:07, Alex Antão <[hidden email]> a écrit :

Hi,

    I've just exported my huge library from Photos.

    No I have 800Gb of photos on my external HD, moved a lot of then on albuns acording to those created in Photos. All OK.

    But... I still have a lot of files on root Folder that were not included in any Album. I want to organize them the fast and easy way possible.

    So, I created a Python script that:

• Takes the file's EXIT data
  
• Extract Original Date from it
  
• Create a directory structure like YEAR/MONTH/DAY (I can choose the level I want) and move the files inside that structure based on the EXIF taken before.
  

     OK, these are working, but I also have a lot of files that are NEF or even PNG (i don't tested yet on MOV, or AVI). Those files does not have EXIF data.

     How can I get Date information from then ? Is it possible ? 

Thanks....

--

[Alex Antão]

Sorry, I think I didn't expressed myself properly.

The NEF files do have (at least I hope) EXIF data, but it is not the conventional one, accessed by common libraries.

I'm using python to classify then. Python has some libraries to read EXIF data from JPEG, but these libraries do not read EXIF from NEF.

I tried to install py3exiv2 library on my Mac, but it is bery dificult, and didn't manage yet, and if I want to make a script everybody will be able to use, this is not the best solution.

So, I'm still trying to find a way to open EXIF data from my NEF (taken not edited) with a easier way. 

Thanks.

---- Ativado Qua, 18 set 2019 04:17:08 -0300 Nicolas Boulesteix <[hidden email]> escreveu ----

Hi,

I just ask for captured nx because it can open non raw file and save it as a nef file embedding original file and non destructive modification information in metadata.

This way, if original file doesn't have exif info it could result in a nef file without creation date metadata

Le mer. 18 sept. 2019 à 07:52, Gilles Caulier <[hidden email]> a écrit :

Hi,

NEF is a RAW container including Exif, Makernotes, and sometimes XMP metadata set by camera. This is true for all RAW files based on TIFF/EP standard, even if RAW format extend the tags list with proprietary values.

In all cases whole Exif are there and mandatory to be post processed with a software as Capture NX. Demosaicing process need to know all shot conditions.

Best

Gilles Caulier 

Le mer. 18 sept. 2019 à 07:35, Nicolas Boulesteix <[hidden email]> a écrit :

Hi,

I'm a bit surprised for the nef file which usually have exif data. Does those files come from a camera or are they created by a Nikon software like Capture Nx from another file format ?

When you look at the whole metadata, is there some metadata that look like creation date or digitized date ? 

Le mar. 17 sept. 2019 à 22:07, Alex Antão <[hidden email]> a écrit :

Hi,

    I've just exported my huge library from Photos.

    No I have 800Gb of photos on my external HD, moved a lot of then on albuns acording to those created in Photos. All OK.

    But... I still have a lot of files on root Folder that were not included in any Album. I want to organize them the fast and easy way possible.

    So, I created a Python script that:

• Takes the file's EXIT data
  
• Extract Original Date from it
  
• Create a directory structure like YEAR/MONTH/DAY (I can choose the level I want) and move the files inside that structure based on the EXIF taken before.
  

     OK, these are working, but I also have a lot of files that are NEF or even PNG (i don't tested yet on MOV, or AVI). Those files does not have EXIF data.

     How can I get Date information from then ? Is it possible ? 

Thanks....

--

[AndriusWild]

Have you tried exiftool? It has a python wrapper if that matters.

Try running "exiftool -s -a -G1 FILE" on a random NEF file and see what it spits out.

Sent from my Samsung Galaxy smartphone.

-------- Original message --------

From: Alex Antão <[hidden email]>

Date: 2019-09-18 6:54 a.m. (GMT-07:00)

To: digiKam - Home Manage your photographs as a professional with the power of open source <[hidden email]>

Subject: Re: [digiKam-users] --> EXIF information on NEF and PNG

Sorry, I think I didn't expressed myself properly.

The NEF files do have (at least I hope) EXIF data, but it is not the conventional one, accessed by common libraries.

I'm using python to classify then. Python has some libraries to read EXIF data from JPEG, but these libraries do not read EXIF from NEF.

I tried to install py3exiv2 library on my Mac, but it is bery dificult, and didn't manage yet, and if I want to make a script everybody will be able to use, this is not the best solution.

So, I'm still trying to find a way to open EXIF data from my NEF (taken not edited) with a easier way. 

Thanks.

---- Ativado Qua, 18 set 2019 04:17:08 -0300 Nicolas Boulesteix <[hidden email]> escreveu ----

Hi,

I just ask for captured nx because it can open non raw file and save it as a nef file embedding original file and non destructive modification information in metadata.

This way, if original file doesn't have exif info it could result in a nef file without creation date metadata

Le mer. 18 sept. 2019 à 07:52, Gilles Caulier <[hidden email]> a écrit :

Hi,

NEF is a RAW container including Exif, Makernotes, and sometimes XMP metadata set by camera. This is true for all RAW files based on TIFF/EP standard, even if RAW format extend the tags list with proprietary values.

In all cases whole Exif are there and mandatory to be post processed with a software as Capture NX. Demosaicing process need to know all shot conditions.

Best

Gilles Caulier 

Le mer. 18 sept. 2019 à 07:35, Nicolas Boulesteix <[hidden email]> a écrit :

Hi,

I'm a bit surprised for the nef file which usually have exif data. Does those files come from a camera or are they created by a Nikon software like Capture Nx from another file format ?

When you look at the whole metadata, is there some metadata that look like creation date or digitized date ? 

Le mar. 17 sept. 2019 à 22:07, Alex Antão <[hidden email]> a écrit :

Hi,

    I've just exported my huge library from Photos.

    No I have 800Gb of photos on my external HD, moved a lot of then on albuns acording to those created in Photos. All OK.

    But... I still have a lot of files on root Folder that were not included in any Album. I want to organize them the fast and easy way possible.

    So, I created a Python script that:

• Takes the file's EXIT data
  
• Extract Original Date from it
  
• Create a directory structure like YEAR/MONTH/DAY (I can choose the level I want) and move the files inside that structure based on the EXIF taken before.
  

     OK, these are working, but I also have a lot of files that are NEF or even PNG (i don't tested yet on MOV, or AVI). Those files does not have EXIF data.

     How can I get Date information from then ? Is it possible ? 

Thanks....

--

[Alex Antão]

Ok, I ran and it returned me the EXIF data.

I was using it on my python scripts, but changed to PIL. 

I'm a python nobbie. Will search the best way to use it Pyexiftool and test with these NEF files.

Thank you !

---- Ativado Qua, 18 set 2019 09:57:59 -0300 Andrey Goreev <[hidden email]> escreveu ----

Have you tried exiftool? It has a python wrapper if that matters.

Try running "exiftool -s -a -G1 FILE" on a random NEF file and see what it spits out.

Sent from my Samsung Galaxy smartphone.

-------- Original message --------

From: Alex Antão <[hidden email]>

Date: 2019-09-18 6:54 a.m. (GMT-07:00)

To: digiKam - Home Manage your photographs as a professional with the power of open source <[hidden email]>

Subject: Re: [digiKam-users] --> EXIF information on NEF and PNG

Sorry, I think I didn't expressed myself properly.

The NEF files do have (at least I hope) EXIF data, but it is not the conventional one, accessed by common libraries.

I'm using python to classify then. Python has some libraries to read EXIF data from JPEG, but these libraries do not read EXIF from NEF.

I tried to install py3exiv2 library on my Mac, but it is bery dificult, and didn't manage yet, and if I want to make a script everybody will be able to use, this is not the best solution.

So, I'm still trying to find a way to open EXIF data from my NEF (taken not edited) with a easier way. 

Thanks.

---- Ativado Qua, 18 set 2019 04:17:08 -0300 Nicolas Boulesteix <[hidden email]> escreveu ----

Hi,

I just ask for captured nx because it can open non raw file and save it as a nef file embedding original file and non destructive modification information in metadata.

This way, if original file doesn't have exif info it could result in a nef file without creation date metadata

Le mer. 18 sept. 2019 à 07:52, Gilles Caulier <[hidden email]> a écrit :

Hi,

NEF is a RAW container including Exif, Makernotes, and sometimes XMP metadata set by camera. This is true for all RAW files based on TIFF/EP standard, even if RAW format extend the tags list with proprietary values.

In all cases whole Exif are there and mandatory to be post processed with a software as Capture NX. Demosaicing process need to know all shot conditions.

Best

Gilles Caulier 

Le mer. 18 sept. 2019 à 07:35, Nicolas Boulesteix <[hidden email]> a écrit :

Hi,

I'm a bit surprised for the nef file which usually have exif data. Does those files come from a camera or are they created by a Nikon software like Capture Nx from another file format ?

When you look at the whole metadata, is there some metadata that look like creation date or digitized date ? 

Le mar. 17 sept. 2019 à 22:07, Alex Antão <[hidden email]> a écrit :

Hi,

    I've just exported my huge library from Photos.

    No I have 800Gb of photos on my external HD, moved a lot of then on albuns acording to those created in Photos. All OK.

    But... I still have a lot of files on root Folder that were not included in any Album. I want to organize them the fast and easy way possible.

    So, I created a Python script that:

• Takes the file's EXIT data
  
• Extract Original Date from it
  
• Create a directory structure like YEAR/MONTH/DAY (I can choose the level I want) and move the files inside that structure based on the EXIF taken before.
  

     OK, these are working, but I also have a lot of files that are NEF or even PNG (i don't tested yet on MOV, or AVI). Those files does not have EXIF data.

     How can I get Date information from then ? Is it possible ? 

Thanks....

--

[Alex Antão]

Just to report: it worked !

    Changed my code to use exiftool again and abandoned PIL (I don't know even why I changed before).

    Now I'm using exiftool and got all EXIF from my NEF as well. I don't have other RAW file types to test. 

Thank you !

---- Ativado Qua, 18 set 2019 10:29:21 -0300 Alex Antão <[hidden email]> escreveu ----

Ok, I ran and it returned me the EXIF data.

I was using it on my python scripts, but changed to PIL. 

I'm a python nobbie. Will search the best way to use it Pyexiftool and test with these NEF files.

Thank you !

---- Ativado Qua, 18 set 2019 09:57:59 -0300 Andrey Goreev <[hidden email]> escreveu ----

Have you tried exiftool? It has a python wrapper if that matters.

Try running "exiftool -s -a -G1 FILE" on a random NEF file and see what it spits out.

Sent from my Samsung Galaxy smartphone.

-------- Original message --------

From: Alex Antão <[hidden email]>

Date: 2019-09-18 6:54 a.m. (GMT-07:00)

To: digiKam - Home Manage your photographs as a professional with the power of open source <[hidden email]>

Subject: Re: [digiKam-users] --> EXIF information on NEF and PNG

Sorry, I think I didn't expressed myself properly.

The NEF files do have (at least I hope) EXIF data, but it is not the conventional one, accessed by common libraries.

I'm using python to classify then. Python has some libraries to read EXIF data from JPEG, but these libraries do not read EXIF from NEF.

I tried to install py3exiv2 library on my Mac, but it is bery dificult, and didn't manage yet, and if I want to make a script everybody will be able to use, this is not the best solution.

So, I'm still trying to find a way to open EXIF data from my NEF (taken not edited) with a easier way. 

Thanks.

---- Ativado Qua, 18 set 2019 04:17:08 -0300 Nicolas Boulesteix <[hidden email]> escreveu ----

Hi,

I just ask for captured nx because it can open non raw file and save it as a nef file embedding original file and non destructive modification information in metadata.

This way, if original file doesn't have exif info it could result in a nef file without creation date metadata

Le mer. 18 sept. 2019 à 07:52, Gilles Caulier <[hidden email]> a écrit :

Hi,

NEF is a RAW container including Exif, Makernotes, and sometimes XMP metadata set by camera. This is true for all RAW files based on TIFF/EP standard, even if RAW format extend the tags list with proprietary values.

In all cases whole Exif are there and mandatory to be post processed with a software as Capture NX. Demosaicing process need to know all shot conditions.

Best

Gilles Caulier 

Le mer. 18 sept. 2019 à 07:35, Nicolas Boulesteix <[hidden email]> a écrit :

Hi,

I'm a bit surprised for the nef file which usually have exif data. Does those files come from a camera or are they created by a Nikon software like Capture Nx from another file format ?

When you look at the whole metadata, is there some metadata that look like creation date or digitized date ? 

Le mar. 17 sept. 2019 à 22:07, Alex Antão <[hidden email]> a écrit :

Hi,

    I've just exported my huge library from Photos.

    No I have 800Gb of photos on my external HD, moved a lot of then on albuns acording to those created in Photos. All OK.

    But... I still have a lot of files on root Folder that were not included in any Album. I want to organize them the fast and easy way possible.

    So, I created a Python script that:

• Takes the file's EXIT data
  
• Extract Original Date from it
  
• Create a directory structure like YEAR/MONTH/DAY (I can choose the level I want) and move the files inside that structure based on the EXIF taken before.
  

     OK, these are working, but I also have a lot of files that are NEF or even PNG (i don't tested yet on MOV, or AVI). Those files does not have EXIF data.

     How can I get Date information from then ? Is it possible ? 

Thanks....

--

[AndriusWild]

Yeah, exiftool and exiv2 are the kings of metadata handling in the open source world.

Sent from my Samsung Galaxy smartphone.

-------- Original message --------

From: Alex Antão <[hidden email]>

Date: 2019-09-18 8:09 a.m. (GMT-07:00)

To: digiKam - Home Manage your photographs as a professional with the power of open source <[hidden email]>

Subject: Re: [digiKam-users] --> EXIF information on NEF and PNG

Just to report: it worked !

    Changed my code to use exiftool again and abandoned PIL (I don't know even why I changed before).

    Now I'm using exiftool and got all EXIF from my NEF as well. I don't have other RAW file types to test. 

Thank you !

---- Ativado Qua, 18 set 2019 10:29:21 -0300 Alex Antão <[hidden email]> escreveu ----

Ok, I ran and it returned me the EXIF data.

I was using it on my python scripts, but changed to PIL. 

I'm a python nobbie. Will search the best way to use it Pyexiftool and test with these NEF files.

Thank you !

---- Ativado Qua, 18 set 2019 09:57:59 -0300 Andrey Goreev <[hidden email]> escreveu ----

Have you tried exiftool? It has a python wrapper if that matters.

Try running "exiftool -s -a -G1 FILE" on a random NEF file and see what it spits out.

Sent from my Samsung Galaxy smartphone.

-------- Original message --------

From: Alex Antão <[hidden email]>

Date: 2019-09-18 6:54 a.m. (GMT-07:00)

To: digiKam - Home Manage your photographs as a professional with the power of open source <[hidden email]>

Subject: Re: [digiKam-users] --> EXIF information on NEF and PNG

Sorry, I think I didn't expressed myself properly.

The NEF files do have (at least I hope) EXIF data, but it is not the conventional one, accessed by common libraries.

I'm using python to classify then. Python has some libraries to read EXIF data from JPEG, but these libraries do not read EXIF from NEF.

I tried to install py3exiv2 library on my Mac, but it is bery dificult, and didn't manage yet, and if I want to make a script everybody will be able to use, this is not the best solution.

So, I'm still trying to find a way to open EXIF data from my NEF (taken not edited) with a easier way. 

Thanks.

---- Ativado Qua, 18 set 2019 04:17:08 -0300 Nicolas Boulesteix <[hidden email]> escreveu ----

Hi,

I just ask for captured nx because it can open non raw file and save it as a nef file embedding original file and non destructive modification information in metadata.

This way, if original file doesn't have exif info it could result in a nef file without creation date metadata

Le mer. 18 sept. 2019 à 07:52, Gilles Caulier <[hidden email]> a écrit :

Hi,

NEF is a RAW container including Exif, Makernotes, and sometimes XMP metadata set by camera. This is true for all RAW files based on TIFF/EP standard, even if RAW format extend the tags list with proprietary values.

In all cases whole Exif are there and mandatory to be post processed with a software as Capture NX. Demosaicing process need to know all shot conditions.

Best

Gilles Caulier 

Le mer. 18 sept. 2019 à 07:35, Nicolas Boulesteix <[hidden email]> a écrit :

Hi,

I'm a bit surprised for the nef file which usually have exif data. Does those files come from a camera or are they created by a Nikon software like Capture Nx from another file format ?

When you look at the whole metadata, is there some metadata that look like creation date or digitized date ? 

Le mar. 17 sept. 2019 à 22:07, Alex Antão <[hidden email]> a écrit :

Hi,

    I've just exported my huge library from Photos.

    No I have 800Gb of photos on my external HD, moved a lot of then on albuns acording to those created in Photos. All OK.

    But... I still have a lot of files on root Folder that were not included in any Album. I want to organize them the fast and easy way possible.

    So, I created a Python script that:

• Takes the file's EXIT data
  
• Extract Original Date from it
  
• Create a directory structure like YEAR/MONTH/DAY (I can choose the level I want) and move the files inside that structure based on the EXIF taken before.
  

     OK, these are working, but I also have a lot of files that are NEF or even PNG (i don't tested yet on MOV, or AVI). Those files does not have EXIF data.

     How can I get Date information from then ? Is it possible ? 

Thanks....

--