Structure of ImageData

This reads in a small example image in RGB color format.

ImageData, like other graphics primitives, may be displayed using the Show command.

Here is the input form of ImageData.

ImageData[{{{255, 0, 0}, {0, 255, 0}, {0, 0, 255},
   {255, 255, 255}, {0, 0, 0}},
  {{255, 0, 0}, {0, 255, 0}, {0, 0, 255},
   {255, 255, 255}, {0, 0, 0}}, {{196, 225, 242},
   {96, 204, 248}, {106, 122, 211}, {219, 112, 131},
   {144, 42, 55}}, {{202, 172, 172}, {111, 229, 152},
   {227, 140, 232}, {175, 149, 115}, {249, 229, 3}},
  {{2, 168, 101}, {176, 116, 98}, {206, 37, 113},
   {185, 107, 237}, {76, 76, 45}}}
PixelInterleave -> True, ColorFunction -> RGBColor]

This converts the image to a planar format.

ImageData[{{{255, 0, 0, 255, 0}, {255, 0, 0, 255, 0}, 
   {196, 96, 106, 219, 144}, {202, 111, 227, 175, 
    249}, {2, 176, 206, 185, 76}}, 
  {{0, 255, 0, 255, 0}, {0, 255, 0, 255, 0}, 
   {225, 204, 122, 112, 42}, {172, 229, 140, 149, 
    229}, {168, 116, 37, 107, 76}}, 
  {{0, 0, 255, 255, 0}, {0, 0, 255, 255, 0}, 
   {242, 248, 211, 131, 55}, {172, 152, 232, 115, 3}, 
   {101, 98, 113, 237, 45}}}, PixelInterleave -> 
  False, ColorFunction -> RGBColor]

This returns a monochrome (i.e., single-channel) image.

ImageData[{{76.24499999999999, 149.685, 29.07, 255., 
   0.}, {76.24499999999999, 149.685, 29.07, 255., 0.}, 
  {218.26699999999997, 176.724, 127.362, 146.159, 
   73.97999999999999}, {180.97, 184.94, 176.501, 
   152.898, 209.216}, {110.728, 131.888, 96.195, 
   145.142, 72.466}}, PixelInterleave -> None, 
 ColorFunction -> GrayLevel]