todo

TODO

General

• maybe color the 'usage' text a little ?
• maybe add syntax to chain image functions together
  • possibly using '--' to seperate actions
  • need to figure out input/output file(s)
  • is there a need for multiple-in / multiple-out ?
• samplers seem to have a n off-by-one issue (see dotnet run -- areasmoother salieri-bx.png -t 2 --max-threads 1 --sampler 2)
• use private static readonly ImageComparer ValidatorComparer = ImageComparer.TolerantPercentage(0.05f); instead of custom comparer for image tests
• refactor wiki generator to use msbuild task instead of tests
• add a Point type TryParse - several functions use 'x y' and could use 'x,y' instead - also would be good to consolidate this code

Ideas

• add noise functions
  • perlin
  • opensimplex - https://gist.github.com/digitalshadow/134a3a02b67cecd72181
  • simplex ?
  • maybe add random points and then draw gradients between closest ones (use trie?)
    • might be able to do this little by little
      1. random points in an area
      2. add gradients
      3. save border points for next area
      4. repeat
• distance map
  • maybe do a tree ring expanding from random cener points
    • for each pixel
    • find nearest starting point (trie?) - dotnet add package KdTree
    • calculate distance to point
    • color pixel based on distance
  • create distance map - foreach pixel - find nearest prime by spiraling from coordinate; calc distance; draw color based on distance
    • probably should use kd-tree or trie to find closest neighbor
    • have pre-defined point layouts
      • ulam spiral primes
      • random
      • evenly spaced grid
      • any number sequesnce from https://oeis.org/ - plot in a spiral ?
    • allow csv, or external points list to be passed in
• take a look at https://en.wikipedia.org/wiki/Rose_(mathematics)
  • https://en.wikipedia.org/wiki/Spirograph
  • https://en.wikipedia.org/wiki/Maurer_rose
• spiral graphs
  • remove/keep prime number spots
  • make rotation distance configurable (best one is golden ratio)
• maze generator
  • http://www.neocomputer.org/projects/eller.html
  • prims
  • others.. there's lots
• fermats last theorem graph
  • plot result of x^2 + y^2 distance from whole number
  • add option to change exponent (2 is the only one that has answers to x^2+y^2=z^2)
  • add option to change starting point
• Implement blind deconvolution
  • https://github.com/tianyishan/Blind_Deconvolution

AllColors

• https://en.wikipedia.org/wiki/Adobe_RGB_color_space

AreaSmoother

• create an areasmoother that samples surrounding pixels then weighted-averages them based on distance - similar to original but without picking the 'best' vector
• AS2 has an off-by-one error when using --rect option

PixelateDetails

• Paralellize and add progress bar
• add a mode where borders inside of boxes are added
  • border color options [average, original, user specified color]
  • fill options [average, original, user specified color]
  • maybe include option to specify which boders to render ? (nesw) or (trbl)

Derivatives

• Paralellize and add progress bar
• maybe add other types of derivatives

ZoomBlur

• add a vertial / horizontal only zoom blur (curtain blur ?)

Swirl

• is it possible to do a outer swirl (outside of radius towards edge instead of inwards?)

Encryption

• add option to change key size? supposedly options are (128,192,256)

Deform

• maybe implement fisheye

AllColors

• add arrangements
  • left to right / right to left
  • spiral in to out
• add option to invert sort order

SpearGraphic

• breakout Third and Fourth into their own generators
• add a way to change the default control variable values
• add support for rectangle option '-#'

ColatzVis

• not really working well.. need a new visualization

UlamSpiral

• add support for color pallete
  • see https://github.com/rasberry/DensityBrot/blob/master/ColorMap.cs
  • option for starting at a different prime
  • option for coloring multiples
  • option for switching direction (ccw vs cw)

Maze

• add maze types listed in http://www.jamisbuck.org/presentations/rubyconf2011/index.html
  • spiral binary tree maze (spiral from center, connect cells randomly)
• Automata:
  • make max iterations variable (or do we need this ?) - maybe make % done related to number of changes per iteration
  • add options for initial random start
    • input image
    • random bits in an NxN square - maybe centered ? or possibly randomized center point