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# frozen_string_literal: true
module ActiveStorage
# This is an abstract base class for image analyzers, which extract width and height from an image blob.
#
# If the image contains EXIF data indicating its angle is 90 or 270 degrees, its width and height are swapped for convenience.
#
# Example:
#
# ActiveStorage::Analyzer::ImageAnalyzer::ImageMagick.new(blob).metadata
# # => { width: 4104, height: 2736 }
class Analyzer::ImageAnalyzer < Analyzer
def self.accept?(blob)
blob.image?
end
def metadata
read_image do |image|
if rotated_image?(image)
{ width: image.height, height: image.width }
else
{ width: image.width, height: image.height }
end
end
end
end
end
Version data entries
38 entries across 36 versions & 4 rubygems