HornetsEye, OpenCV, RMagick conversions

image-types.rb

require 'multiarray'
require 'hornetseye_opencv'
require 'hornetseye_rmagick'
require 'hornetseye_narray'
include Hornetseye
img = MultiArray[[2, 3, 5, 7], [11, 13, 17, 19]]
# MultiArray(UBYTE,2):
# [ [ 2, 3, 5, 7 ],
#   [ 11, 13, 17, 19 ] ]
cvmat = img.to_cvmat
# #<OpenCV::CvMat:0x00000002650ac0>
cvmat.to_multiarray
# MultiArray(UBYTE,2):
# [ [ 2, 3, 5, 7 ],
#   [ 11, 13, 17, 19 ] ]
narray = img.to_narray
# NArray.byte(4,2): 
# [ [ 2, 3, 5, 7 ], 
#   [ 11, 13, 17, 19 ] ]
narray.to_multiarray
# MultiArray(UBYTE,2):
# [ [ 2, 3, 5, 7 ],
#   [ 11, 13, 17, 19 ] ]
rmagick = img.to_magick
#   4x2 DirectClass 8-bit
rmagick.to_multiarray
# MultiArray(UBYTE,2):
# [ [ 2, 3, 5, 7 ],
#   [ 11, 13, 17, 19 ] ]
memory = img.memory
# Malloc(8)
str = memory.read(memory.size)
# "\x02\x03\x05\a\v\r\x11\x13"
img = MultiArray.import(UBYTE, str, 4, 2)
# MultiArray(UBYTE,2):
# [ [ 2, 3, 5, 7 ],
#   [ 11, 13, 17, 19 ] ]