ARCHE - external wiki

h1. Images

Formats for archiving:

* tiff, tif - baseline TIFF v. 6, uncompressed

* dng (Adobe Digital Negative)

* png (Portable Network Graphics) - only suitable for graphics, does not support EXIF metadata

Accepted formats (i.e. require further conversion by ARCHE):

* jpeg, jpg (Joint Photographic Expert Group)

* gif (Graphics Interchange Format)

* bmp (Bit-Mapped Graphics Format (Microsoft))

* psd (Photoshop (Adobe))

* jp2, jpx (JPEG2000)

More information:

* https://www.ianus-fdz.de/it-empfehlungen/rastergrafiken

* http://guides.archaeologydataservice.ac.uk/g2gp/RasterImg_Toc

Software for conversion:

* XnView: https://www.xnview.com/en/xnviewmp/

{{collapse(Info about)

XnView MP is a versatile and powerful photo viewer, image management, image resizer. XnView is one of the most stable, easy-to-use, and comprehensive photo editors. All common picture and graphics formats are supported (JPEG, TIFF, PNG, GIF, WEBP, PSD, JPEG2000, OpenEXR, camera RAW, HEIC, PDF, DNG, CR2). 

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{{collapse(How to)

Batch process multiple images to convert to valid Baseline TIFF 6.0

# Open XnView MP and navigate to Folder containting the images to process

# select multiple images to process or select whole folder containing images (and subfolders with furter images)

# Right click and select 'Stapelverarbeitung' (or batch processing); or just press Strg/Ctrl+U

# In the Window set your output settings as in the attached screenshot (make sure to check 'Unterverzeichnisse beibehalten' and 'Dateidatum und -uhrzeit beibehalten' and 'Metadaten übernehmen'; 'Erweiterung beibehalten' only makes sense if file is already tiff)

!stapelverarbeitungXnViewMP.png!

# In the section 'Format' select 'TIF - TIFF Revision 6' and click on 'Einstellungen' (settings)

# In the settings window check to keep all metadata, the remaining settings can be left on default (see second screenshot)

!stapelverarbeitungXnViewMP-tiffSettings.png!

BILDER hier einfügen

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Software for validation and conformance checking:

* tiff: DPF Manager (http://dpfmanager.org/)

{{collapse(Note)

Using DPF Manager Lite gives an error: https://github.com/EasyinnovaSL/DPFManager/issues/493

The workaround from the linked issue works. Thus, if it es e.g. installed in 'C:\Program Files\DPF Manager\app', from an command line (with java installed) just execute

<pre><code class="text">

java -jar "C:\Program Files\DPF Manager\app\DPF Manager-jfx.jar"

</code></pre>

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{{collapse(How to)

DPF Manager can be used to validate single files or whole folders. These are the steps to recursively check folders (with a screenshot):

# Start DPF Manager

# In the Files Check Tab click on Select and in the drop down either chose folder or tree view

# navigate to the folder you whish to check and select it

# Check the Box 'Recursive' right below the Folder input field

# Chose the 'Default' Tiff configuration for checking

# Start the check with a click on 'Full check'

# When the check is done the results can be viewed in the program (go to Reports tab) or can be found in the local user profile\DPF Manager\reports (click the folder icon in the Reports Tab)

!DPF_manager_folderRecursiveSetting.png!

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