1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
=begin
= image_size.rb
measure image (GIF, PNG, JPEG ,,, etc) size
coded by Pure Ruby
["PCX", "PSD", "XPM", "TIFF", "XBM", "PGM", "PBM", "PPM", "BMP", "JPEG", "PNG", "GIF"]
== Install:
$ ruby install.rb
It will install lib/csv.rb to your site_ruby directory such as
/usr/local/lib/ruby/site_ruby/1.6/.
== Methods:
=== new(image)
receive image & measure size.
argument is image String or IO.
cannot use IO included seek.
=== get_type
return type
=== get_height
return height size
=== get_width
return width size
== Class Methods:
=== type
return type list (Array).
== How to
=== argument is String
require "image_size"
open("image.gif", "rb") do |fh|
img = ImageSize.new(fh.read)
end
=== argument is IO
require "image_size"
open("image.gif", "rb") do |fh|
img = ImageSize.new(fh)
end
=== get type, width and height
img = ImageSize.new(fh)
print "type="{} width=#{img.width} height=#{img.width}\n"
=== Type List
require "image_size"
ImageSize.type
=> ["PCX", "PSD", "XPM", "TIFF", "XBM", "PGM", "PBM", "PPM", "BMP", "JPEG", "PNG", "GIF", "OTHER"]
=end
|
