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# Glitch This is a simple port of https://github.com/sug0/go-glitch to rust. Below is copied 1:1 of what is in the go project. ## What is the deal with the expressions? You can think of the image as a functor that you map an expression to, for each pixel's component colors, returning a new one. The allowed operators are: * `+` plus * `-` minus * `*` multiplication * `/` division * `%` modulo * `#` power of operator * `&` bit and * `|` bit or * `:` bit and not * `^` bit xor * `<` bit left shift * `>` bit right shift * `?` returns 255 if left side is greater otherwise 0 * `@` attributes a weight in the range `[0, 255]` to the value on the left The expressions are made up of operators, numbers, parenthesis, and a set of parameters: * `c` the current value of each pixel component color * `b` the blurred version of `c` * `h` the horizontally flipped version of `c` * `v` the vertically flipped version of `c` * `d` the diagonally flipped version of `c` * `Y` the luminosity, or grayscale component of each pixel * `N` a noise pixel (i.e. a pixel where each component is a random value) * `R` the red color (i.e. rgb(255, 0, 0)) * `G` the green color (i.e. rgb(0, 255, 0)) * `B` the blue color (i.e. rgb(0, 0, 255)) * `s` the value of each pixel's last saved evaluated expression * `r` a pixel made up of a random color component from the neighboring 8 pixels * `e` the difference of all pixels in a box, creating an edge-like effect * `x` the current x coordinate being evaluated normalized in the range `[0, 255]` * `y` the current y coordinate being evaluated normalized in the range `[0, 255]` * `H` the highest valued color component in the neighboring 8 pixels * `L` the lowest valued color component in the neighboring 8 pixels ## Examples * `128 & (c - ((c - 150 + s) > 5 < s))` * `(c & (c ^ 55)) + 25` * `128 & (c + 255) : (s ^ (c ^ 255)) + 25`

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