Here is a detailed description of your image, rose.txt:

Image: rose.jpeg
  Format: jpeg (Joint Photographic Experts Group JFIF format)
  Geometry: 227x149
  Class: DirectClass
  Type: TrueColor
  Endianess: Undefined
  Colorspace: RGB
  Channel depth:
    Red: 8-bits
    Green: 8-bits
    Blue: 8-bits
  Channel statistics:
    Red:
      Min: 31 (0.121569)
      Max: 255 (1)
      Mean: 146.339 (0.573878)
      Standard deviation: 68.5136 (0.268681)
    Green:
      Min: 19 (0.0745098)
      Max: 255 (1)
      Mean: 90.5163 (0.354966)
      Standard deviation: 53.0048 (0.207862)
    Blue:
      Min: 15 (0.0588235)
      Max: 255 (1)
      Mean: 81.4846 (0.319548)
      Standard deviation: 55.4097 (0.217293)
  Colors: 20388
  Rendering-intent: Undefined
  Resolution: 72x72
  Units: PixelsPerInch
  Filesize: 5kb
  Interlace: None
  Background Color: white
  Border Color: #DFDFDF
  Matte Color: grey74
  Dispose: Undefined
  Iterations: 0
  Compression: JPEG
  Quality: 75
  Orientation: Undefined
  JPEG-Colorspace: 2
  JPEG-Sampling-factors: 2x2,1x1,1x1
  Signature: 11e9f5f0a63c7efdfbd429849e88566295aaed671d7eb0d3cfce38cedb81033f
  Tainted: False
  Version: ImageMagick 6.2.2 04/30/05 Q16 file:/usr/share/ImageMagick-6.2.2/doc/index.html