180 lines
5.9 KiB
Racket
180 lines
5.9 KiB
Racket
#lang scheme
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;; Extract various info from photos on Flickr
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;; (in particular http://www.flickr.com/photos/zzkt/sets/72157632421623064/
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;; Copyright: LGPL 2014 nik gaffney
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;; Author: nik gaffney <nik@fo.am>
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;; Requirements: tested with Racket 5.3.6
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;; things to analyse in 02013 set
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;; - places where photos have been taken (via country code tags, cities, etc)
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;; - subjective trends, most frequently used tags possibly compare with 2012 (tags)
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;; - outliers. unique tags, unique subject, etc (via tags & eyes)
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;; - most intersting/popular (via 'interestingness' and view/favourite counts)
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;; - time of day distribution (possibly heatmap)
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;; - relevant groups, e.g. number of photos, views, distribution in groups
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;;
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;; further
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;; - patterns not apparent in visual analysis
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;; - clusters, patterns, correlations in tags, groups, views
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;; - subject analysis (autoclasification)
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;; - photos with most unique tags
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;; - what do popular/interesting photos have in common?
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;; - intersection of personal favourites and 'uninteresting'
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;;
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;; analysis of 02013
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;; (analyse-365)
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;;
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;; montage
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;; - see imagemagick notes
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(require (planet dvanhorn/flickr:2:3))
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(include "flickr-auth.rkt") ;; defines current-sec-key and current-api-key
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(flickr.test.echo)
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(define zzkt "52731283@N06")
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(define set_02013 "72157632421623064")
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;; get list of photos, with views and tags
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(define (get-photoset set)
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(flickr.photosets.getPhotos #:photoset_id set #:extras "views,tags,date_taken"))
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;; feature extraction
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(define (extract feature photos)
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"rather fragile method to extract details from a photset.
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feature can include 'id 'tags 'title 'views 'datetaken etc."
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(map (lambda (x)
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(cadr (assoc feature (cadr x))))
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(list-tail (car photos) 2)))
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;; sorted and unsorted list of photo titles and views
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(define (titles-and-views photos)
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"sort list of photos by views"
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(sort (map cons (extract 'title photos)
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(map string->number (extract 'views photos)))
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> #:key cdr))
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(define (titles-and-views-unsorted photos)
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(map cons (extract 'title photos)
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(map string->number (extract 'views photos))))
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;; extract tags to hash with tag counts
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(define (tag-freq photos)
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(let ((ph (make-hash))
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(taglist (string-split (string-join (extract 'tags photos)))))
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(map (lambda (x)
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(hash-update! ph x add1 0))
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taglist)
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(sort (hash-map ph cons) > #:key cdr)))
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(define (total-tags photos)
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(length (tag-freq photos)))
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(define (unique-tags photos)
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(map car
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(filter (lambda (x) (= 1 (cdr x)))
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(tag-freq photos))))
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;; time and date
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(define (time-diffusion photos)
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(map car
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(map (lambda (x) (cdr (string-split x)))
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(extract 'datetaken photos))))
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;; sort images by 'interestingness'
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(define (most-interesting)
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(flickr.photos.search #:user_id zzkt
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#:sort "interestingness-desc"
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#:min_taken_date "2013-01-01 00:00:00"
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#:per_page "500" #:extras "views"))
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;; update titles and descriptions
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;; -> https://secure.flickr.com/services/api/flickr.photos.setMeta.html
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(define (set-title photo title)
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(flickr.photos.setMeta #:photo_id photo #:title title #:description " "))
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;; favourites
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;; NOTE: expects #:photo_id whereas photo-views et.al. expect elements of a photoset
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(define (favorite-count ph)
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(string->number
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(list-ref (assoc 'total
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(cadar (flickr.photos.getFavorites #:photo_id ph))) 1)))
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;; (favorite-count "10983871953")
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;; groups and sets
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;; flickr.photos.getAllContexts
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(define (get-sets ph)
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(let ((context (flickr.photos.getAllContexts #:photo_id ph)))
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(map (lambda (x) (cadr (assoc 'title (cadr x))))
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(filter (lambda (x) (eqv? 'set (car x))) context))))
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(define (get-groups ph)
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(let ((context (flickr.photos.getAllContexts #:photo_id ph)))
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(map (lambda (x) (cadr (assoc 'title (cadr x))))
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(filter (lambda (x) (eqv? 'pool (car x))) context))))
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(define (get-contexts ph)
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(let* ((context (flickr.photos.getAllContexts #:photo_id ph))
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(sets (filter (lambda (x) (eqv? 'set (car x))) context))
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(groups (filter (lambda (x) (eqv? 'pool (car x))) context)))
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(list (map (lambda (x) (cadr (assoc 'title (cadr x)))) sets)
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(map (lambda (x) (cadr (assoc 'title (cadr x)))) groups))))
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;; (get-contexts "10983871953")
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;; info from individual photos
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(define (photo-title ph)
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(list-ref (assoc 'title (cdar ph)) 2))
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(define (photo-url ph)
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(list-ref (caddr (assoc 'urls (cdar ph))) 2))
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(define (photo-views ph)
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(string->number
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(list-ref (assoc 'views (cadar ph)) 1)))
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;; titles, contexts, views and favourites from a photoset...
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(define (exfoliate-photoset photos)
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(map (lambda (id)
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(let ((ph (flickr.photos.getInfo #:photo_id id)))
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;(displayln id)
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(list (photo-title ph)
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(cons 'views (photo-views ph))
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(cons 'favorites (favorite-count id))
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(cons 'sets (list (get-sets id)))
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(cons 'groups (list (get-groups id))))))
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(extract 'id (get-photoset photos))))
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;; (exfoliate-photoset "72157638504674335")
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;; summarise sets as output from exfoliate-photoset
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(define (summarise-sets photos)
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(flatten (map (lambda (x)
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(cadr (assoc 'groups (cdr x)))) photos)))
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;; (summarise-sets exfoliated)
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(define (count-groups groups)
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(let ((ph (make-hash)))
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(map (lambda (x)
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(hash-update! ph x add1 0))
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groups)
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(sort (hash-map ph cons) > #:key cdr)))
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;; (count-groups (summarise-sets exfoliated))
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;; collate various and sundry analysis
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(define (analyse-365)
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(let ((photoset (get-photoset set_02013)))
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(displayln ";; titles and views")
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(print (titles-and-views photoset))
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(displayln ";; tag fequency")
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(print (tag-freq photoset))
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(displayln ";; groups and sets")
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(print (count-groups (exfoliate-photoset set_02013)))))
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