crop.rb

require "rmagick"

crop = [
  0.46277403831481934,  # x_min (proportion from left)
  0.5259760022163391,   # y_min (proportion from top)
  0.36609894037246704, # x_max (proportion from left)
  0.4222343862056732, # y_max (proportion from top)
]
input_path = "./input.jpeg"

begin
  image = Magick::Image.read(input_path).first
  width = image.columns
  height = image.rows

  x = (width * crop[0]).round
  y = (height * crop[1]).round
  crop_width = (width * (crop[2] - crop[0])).round
  crop_height = (height * (crop[3] - crop[1])).round

  cropped_image = image.crop(x, y, crop_width, crop_height)
  cropped_image.write("output.jpeg")
rescue Magick::ImageMagickError => e
  puts "Error processing image: #{e.message}"
rescue StandardError => e
  puts "Error: #{e.message}"
ensure
  image&.destroy!
  cropped_image&.destroy!
end