環境はCentOS 6系
ImageMagick入れる
$ sudo yum install ImageMagick
identifyコマンドでチェック
$ identify -verbose newwindow.png
Image: newwindow.png
Format: PNG (Portable Network Graphics)
Class: DirectClass
Geometry: 11x9+0+0
Resolution: 72x72
Print size: 0.152778x0.125
Units: Undefined
Type: PaletteMatte
Endianess: Undefined
Colorspace: RGB
Depth: 8-bit
Channel depth:
red: 8-bit
green: 8-bit
blue: 8-bit
alpha: 1-bit
Channel statistics:
red:
min: 117 (0.458824)
max: 255 (1)
mean: 207.97 (0.815567)
standard deviation: 58.2078 (0.228266)
kurtosis: -1.58905
skewness: -0.506753
green:
min: 0 (0)
max: 255 (1)
mean: 170.879 (0.670113)
standard deviation: 108.467 (0.425361)
kurtosis: -1.28129
skewness: -0.68968
blue:
min: 0 (0)
max: 255 (1)
mean: 170.879 (0.670113)
standard deviation: 108.467 (0.425361)
kurtosis: -1.28129
skewness: -0.68968
alpha:
min: 0 (0)
max: 255 (1)
mean: 167.424 (0.656566)
standard deviation: 121.088 (0.474855)
kurtosis: -1.56516
skewness: 0.659425
Image statistics:
Overall:
min: 0 (0)
max: 255 (1)
mean: 159.326 (0.624807)
standard deviation: 111.088 (0.435638)
kurtosis: -1.49685
skewness: -0.508195
Alpha: rgba(255,255,255,0) #FFFFFF00
Histogram:
16: (117,117,117,255) #757575 grey46
24: (153, 0, 0,255) #990000 rgba(153,0,0,1)
34: (255,255,255, 0) #FFFFFF00 rgba(255,255,255,0)
25: (255,255,255,255) #FFFFFF white
Rendering intent: Undefined
Gamma: 0.45
Interlace: None
Background color: white
Border color: rgba(223,223,223,1)
Matte color: grey74
Transparent color: none
Page geometry: 11x9+0+0
Dispose: Undefined
Iterations: 0
Compression: Zip
Orientation: Undefined
Properties:
date:create: 2014-06-30T19:11:35+09:00
date:modify: 2014-06-30T19:11:35+09:00
signature: 2c79c5cc4298064485707a3e8c1e0ceba9f7241dd7366ff9a9dcb505a8b14936
Software: Adobe ImageReady
Artifacts:
verbose: true
Tainted: False
Filesize: 220b
Number pixels: 99b
Version: ImageMagick 6.5.4-7 2014-02-10 Q16 OpenMP http://www.imagemagick.org
ずらーっとでてくる
例えば色空間(RGBとかCMYKとか)だったら
identify -verbose newwindow.png |grep Colorspace
Colorspace: RGB
Colorspaceを見ればよいね。