Active Storage Image Analyzer
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 }
Namespace
Class
Methods
Class Public methods
accept?(blob)
📝 Source code
# File activestorage/lib/active_storage/analyzer/image_analyzer.rb, line 15
def self.accept?(blob)
blob.image?
endInstance Public methods
metadata()
📝 Source code
# File activestorage/lib/active_storage/analyzer/image_analyzer.rb, line 19
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