A Trip at a Glance

A picture can be stored as a file containing both pixel content and meta-information. Using Import, you can get such metadata and discover programmable insights about the context of a picture.

Import and analyze a collection of photos taken during a visit to Lisbon.

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files = Map[img \[Function] ExampleData[img, "FilePath"], ExampleData[{"TestImageSet", "Lisbon2016"}]];

View the date histogram of the images.

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dates = Map[file \[Function] Import[file, "DateTime"], files];

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DateHistogram[dates, Quantity[1, "Hours"]]

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View a collage of thumbnails.

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thumbnails = ExampleData[{"TestImageSet", "Lisbon2016"}, "ThumbnailList"];

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ImageCollage[thumbnails, Method -> "Columns", ImagePadding -> 2]

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Present the photos on a timeline.

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TimelinePlot[MapThread[Labeled, {dates, thumbnails}], PlotLayout -> "Vertical", ImageSize -> Medium]

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Gather all information in a dataset.

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gps = Map[file \[Function] Import[file, "GeoPosition"], files];

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ds = Dataset[ MapThread[ AssociationThread[{"Thumbnail", "DateTime", "GeoPosition"} -> {##}] &, {thumbnails, dates, gps}]]

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Show locations where images were taken.

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GeoGraphics[ MapThread[ GeoMarker, {Normal[ds[All, "GeoPosition"]], Normal[ds[All, "Thumbnail"]]}], ImageSize -> Medium]

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