I am continuing to work with camera data and I have been finding ways of using that data with ImageMagick.

Reading further into the documentation I am just beginning to realise how immensely powerful ImageMagick, especially as an opensource tool.  I've been experimenting with the "verbose" command which prints out file data from the RAW images I have been capturing.

Here is an example of some of the detailed data I can access from my RAW files

30042116.jpg
Image: 20170930042116.jpg
  Format: JPEG (Joint Photographic Experts Group JFIF format)
  Mime type: image/jpeg
  Class: DirectClass
  Geometry: 3280x2464+0+0
  Resolution: 72x72
  Print size: 45.5556x34.2222
  Units: PixelsPerInch
  Type: TrueColor
  Endianess: Undefined
  Colorspace: sRGB
  Depth: 8-bit
  Channel depth:
    red: 8-bit
    green: 8-bit
    blue: 8-bit
  Channel statistics:
    Pixels: 8081920
    Red:
      min: 37 (0.145098)
      max: 243 (0.952941)
      mean: 109.887 (0.430928)
      standard deviation: 37.8984 (0.148621)
      kurtosis: 2.09037
      skewness: 1.56838
    Green:
      min: 32 (0.12549)
      max: 237 (0.929412)
      mean: 99.3588 (0.389642)
      standard deviation: 36.1291 (0.141683)
      kurtosis: 3.51254
      skewness: 1.88898
    Blue:
      min: 36 (0.141176)
      max: 243 (0.952941)
      mean: 106.87 (0.419098)
      standard deviation: 36.5096 (0.143175)
      kurtosis: 2.6352
      skewness: 1.69613
  Image statistics:
    Overall:
      min: 32 (0.12549)
      max: 243 (0.952941)
      mean: 105.372 (0.413223)
      standard deviation: 36.8536 (0.144524)
      kurtosis: 2.7792
      skewness: 1.72331
  Rendering intent: Perceptual
  Gamma: 0.454545
  Chromaticity:
    red primary: (0.64,0.33)
    green primary: (0.3,0.6)
    blue primary: (0.15,0.06)
    white point: (0.3127,0.329)
  Background color: white
  Border color: srgb(223,223,223)
  Matte color: grey74
  Transparent color: black
  Interlace: None
  Intensity: Undefined
  Compose: Over
  Page geometry: 3280x2464+0+0
  Dispose: Undefined
  Iterations: 0
  Compression: JPEG
  Quality: 100
  Orientation: Undefined
  Properties:
    date:create: 2017-09-30T19:19:08+13:00
    date:modify: 2017-09-30T17:21:22+13:00
    exif:ApertureValue: 20000/10000
    exif:BrightnessValue: 249/100
    exif:ColorSpace: 1
    exif:ComponentsConfiguration: 1, 2, 3, 0
    exif:DateTime: 2017:09:30 04:21:21
    exif:DateTimeDigitized: 2017:09:30 04:21:21
    exif:DateTimeOriginal: 2017:09:30 04:21:21
    exif:ExifImageLength: 2464
    exif:ExifImageWidth: 3280
    exif:ExifOffset: 192
    exif:ExifVersion: 48, 50, 50, 48
    exif:ExposureMode: 0
    exif:ExposureProgram: 3
    exif:ExposureTime: 78329/1000000
    exif:Flash: 0
    exif:FlashPixVersion: 48, 49, 48, 48
    exif:FNumber: 20000/10000
    exif:FocalLength: 30390/10000
    exif:ImageLength: 2464
    exif:ImageWidth: 3280
    exif:InteroperabilityOffset: 906
    exif:ISOSpeedRatings: 125
    exif:Make: RaspberryPi
    exif:MakerNote: 101, 118, 61, 45, 49, 32, 109, 108, 117, 120, 61, 45, 49, 32, 101, 120, 112, 61, 55, 56, 51, 50, 57, 32, 97, 103, 61, 54, 51, 55, 32, 102, 111, 99, 117, 115, 61, 50, 53, 53, 32, 103, 97, 105, 110, 95, 114, 61, 49, 46, 50, 54, 57, 32, 103, 97, 105, 110, 95, 98, 61, 49, 46, 52, 49, 52, 32, 103, 114, 101, 101, 110, 110, 101, 115, 115, 61, 45, 56, 57, 32, 99, 99, 109, 61, 54, 48, 55, 56, 44, 45, 50, 48, 52, 52, 44, 54, 56, 44, 45, 49, 49, 57, 56, 44, 53, 52, 50, 56, 44, 45, 49, 51, 48, 44, 50, 55, 50, 44, 45, 51, 57, 49, 54, 44, 55, 55, 52, 52, 44, 48, 44, 48, 44, 48, 32, 109, 100, 61, 48, 32, 116, 103, 61, 50, 54, 49, 32, 50, 54, 49, 32, 111, 116, 104, 61, 48, 32, 48, 32, 98, 61, 48, 32, 102, 61, 50, 54, 49, 32, 50, 54, 49, 32, 102, 105, 61, 48, 32, 73, 83, 80, 32, 66, 117, 105, 108, 100, 32, 68, 97, 116, 101, 58, 32, 65, 117, 103, 32, 32, 56, 32, 50, 48, 49, 55, 44, 32, 49, 50, 58, 48, 52, 58, 52, 54, 32, 86, 67, 95, 66, 85, 73, 76, 68, 95, 73, 68, 95, 86, 69, 82, 83, 73, 79, 78, 58, 32, 49, 57, 54, 48, 54, 51, 52, 51, 56, 100, 55, 98, 98, 48, 55, 54, 57, 56, 54, 49, 99, 56, 54, 102, 57, 52, 56, 97, 101, 54, 53, 51, 55, 50, 55, 97, 100, 98, 55, 101, 32, 40, 99, 108, 101, 97, 110, 41, 32, 86, 67, 95, 66, 85, 73, 76, 68, 95, 73, 68, 95, 85, 83, 69, 82, 58, 32, 100, 99, 52, 32, 86, 67, 95, 66, 85, 73, 76, 68, 95, 73, 68, 95, 66, 82, 65, 78, 67, 72, 58, 32, 109, 97, 115, 116, 101, 114, 32
    exif:MaxApertureValue: 20000/10000
    exif:MeteringMode: 2
    exif:Model: RP_imx219
    exif:ResolutionUnit: 2
    exif:ShutterSpeedValue: 3674309/1000000
    exif:thumbnail:Compression: 6
    exif:thumbnail:ImageLength: 48
    exif:thumbnail:ImageWidth: 64
    exif:thumbnail:InteroperabilityIndex: R98
    exif:thumbnail:JPEGInterchangeFormat: 1042
    exif:thumbnail:JPEGInterchangeFormatLength: 24576
    exif:thumbnail:ResolutionUnit: 2
    exif:thumbnail:XResolution: 72/1
    exif:thumbnail:YResolution: 72/1
    exif:WhiteBalance: 0
    exif:XResolution: 72/1
    exif:YCbCrPositioning: 1
    exif:YResolution: 72/1
    jpeg:colorspace: 2
    jpeg:sampling-factor: 2x2,1x1,1x1
    signature: b600a2a2dbd22e0545ed6127baccaaaaa68cbdfcbb6bcd983c8def1b6388ca03
  Profiles:
    Profile-exif: 25624 bytes
  Artifacts:
    filename: 20170930042116.jpg
    verbose: true
  Tainted: False
  Filesize: 14.55MB
  Number pixels: 8.082M
  Pixels per second: 42.54MB
  User time: 0.190u
  Elapsed time: 0:01.190

As I think about other ways of visualising the camera data I have been digging deeper into the ImageMagick documentation.  I've been learning about different colorspaces and how they can be represented in different ways.  

As a filmmaker I love the concept of animating frames.  Essentially that what filmmaking is - sequencing still images to create movement.  Now that I've seen some of ideas about graphing data come to fruition I am starting to think about how I translate them into animations, or moving images.  So I dug a little deeper into the ImageMagick documentation and learnt about different colorspaces and how they can be displayed in different ways.  You know where these are heading...

 

colorwheel_HSL.png
colorwheel_LCHab.png