Trabajando con archivos
Herramientas varias para trabajar con archivos de imágenes
ExifTool by Phil Harvey ExifTool es una biblioteca de Perl independiente de la plataforma más una aplicación de línea de comandos para leer, escribir y editar metainformación en una amplia variedad de archivos.
- Ejemplo para extraer todos los metadatos de una imagen:
exiftool -a MA-sample-id-2498680.jpg
ImageMagick ImageMagick es un conjunto de utilidades de código abierto, para mostrar, manipular y convertir imágenes, capaz de leer y escribir más de 200 formatos.
- Ejemplo para reducir una imagen al 50%:
magick mogrify -resize 50% rose.jpg - Ejemplo para crear una copia reducida en otra carpeta:
magick mogrify -resize 200x200 -path ch MA-sample-id-2498680.jpg
Porque usar aplicaciones de línea de comandos?
Principalmente porque, a diferencia de las aplicaciones gráficas, la línea de comandos consume muy pocos recursos y ejecuta las tareas mucho más rápido. Eso se traduce en productividad a la hora de crear y ejecutar comandos en nuestra máquina o en un servidor remoto.
Extraer metadatos de un archivo que contiene metadatos ISAD-G
- Descarga el archivo:
- Abre una ventana de terminal en tu carpeta y ejecuta:
exiftool -xmp-isadg:all MA-sample-id-2498680.jpg
A continuación, se imprimirá en la pantalla lo siguiente:
| Etiqueta XPM ISAD(G) | Valor |
|---|---|
| Alliedmaterials Existencelocationcopies | Digital reproductions of the Christie family Civil War correspondence [...] |
| Alliedmaterials Existencelocationoriginals | Following sampling in 1985, the remaining case files were destroyed. [...] |
| Alliedmaterials Publication | The entire calendar has been published in 12 volumes from the set of cards held [...] |
| Alliedmaterials Relatedunits | Earlier files of a similar nature (1959-1968) are catalogued as Minnesota.[...] |
| Conditionsaccessuse Accessrestrictions | Unrestricted access, including display rights and consultation rights [...] |
| Conditionsaccessuse Findingaids | Series level descriptions available with associated box lists (Fonds) Canada [...] |
| Conditionsaccessuse Languagescripts | In Dakota, with partial English translation (File) U.S., Minnesota Historical [...] |
| Conditionsaccessuse Phystech | Videotapes are in ½ inch helical open reel-to-reel format. (Sub-series) U.S., [...] |
| Conditionsaccessuse Reprorestrictions | Copyright is retained by the artist (Fonds) Canada, York University Archives |
| Contentstructure Accruals | Further accruals are expected (Fonds) Canada, York University Archives |
| Contentstructure Appraisaldestruction | An inventory to the former RG 43 (July 1998) is available. File lists [...] |
| Contentstructure Arrangement | The fonds is arranged into nine series: Railway Branch, Canal Branch, Legal records [...] |
| Contentstructure Scopecontent | Consists of records created by the Department and received from its predecessor, [...] |
| Context Acqinfo | Gift of Herbert Whittaker on 22 April 1994. (Fonds) Canada, York University Archives [...] |
| Context Adminbiohistory | The Department of Railways and Canals existed from 1879 to 1936. It was established on [...] |
| Context Archivalhistory | Letters written by Herbert Whittaker and mailed to Sydney Johnson remained in the [...] |
| Context Creator | Canada. Dept. of Railways and Canals |
| Descriptioncontrol Archivistsnote | Description prepared by S. Dubeau in October 1997; revised in April1999 (Fonds) Canada [...] |
| Descriptioncontrol Descriptionsdate | Series registered, 24 September 1987. Description updated, 10 November 1999. [...] |
| Descriptioncontrol Rulesconventions | Rules for Archival Description (RAD), Bureau of Canadian Archivists, 1990. |
| Identity Date | 1900 |
| Identity Description Level | File |
| Identity Extent | 46 maps |
| Identity Reference | MET 19.164 |
| Identity Title | Sleeping Cat |
| Notes Note | test notes |
