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Effects = (function() {
function pixelate(id) {
var canvas = document.getElementById('canvas-' + id);
paper.setup(canvas);
var raster = new paper.Raster('img-' + id);
raster.visible = false;
var gridSize = 6;
var gridDim = 9;
var colors = [];
raster.size = new paper.Size(gridDim, gridDim);
for (var y = 0; y < raster.height; y++) {
for(var x = 0; x < raster.width; x++) {
var color = raster.getPixel(x, y);
colors.push(
Math.round(256 * color.red),
Math.round(256 * color.green),
Math.round(256 * color.blue),
1 // alpha
);
var rec = new paper.Path.Rectangle({
point: [x * gridSize, y * gridSize],
size: [gridSize, gridSize],
strokeColor: color,
fillColor: color
});
}
}
paper.view.draw();
// quantize now
var quant = new RgbQuant({
colors: 2,
minHueCols: 2
});
quant.sample(colors);
var palette = quant.palette(true);
var newcolors = quant.reduce(colors);
var newcolors2 = [];
for (var x=0; x < gridDim * gridDim; x++) {
newcolors2.push([newcolors[(x*4)], newcolors[(x*4)+1], newcolors[(x*4)+2]]);
// skip dummy alpha value (x*4)+3
}
// two primary colors
var pc1 = new paper.Color(palette[0][0] / 256, palette[0][1] / 256, palette[0][2] / 256);
var pc2 = new paper.Color(palette[1][0] / 256, palette[1][1] / 256, palette[1][2] / 256);
// save for later
Session.set(id + ':pc1', pc1);
Session.set(id + ':pc2', pc2);
Session.set(id + ':colors', colors);
Session.set(id + ':newcolors', newcolors2);
console.log(newcolors2);
}
function colorize(id) {
var canvas = document.getElementById('canvas-' + id);
paper.setup(canvas);
// params
var gridSize = 6;
var gridDim = 9;
// fetch the new colors
var pc1 = new paper.Color(Session.get(id + ':pc1'));
var pc2 = new paper.Color(Session.get(id + ':pc2'));
var colors = Session.get(id + ':newcolors');
console.log(colors);
// sample each color, diff and color new pixels
for (var y = 0; y < gridDim; y++) {
for(var x = 0; x < gridDim; x++) {
var c = colors[(y * gridDim) + x];
var nc = new paper.Color(c[0] / 256, c[1] / 256, c[2] / 256);
// console.log(x * gridSize, y * gridSize, nc);
var rec = new paper.Path.Rectangle({
point: [x * gridSize, y * gridSize],
size: [gridSize, gridSize],
strokeColor: nc,
fillColor: nc
});
}
}
paper.view.draw();
}
return {
pixelate: pixelate,
colorize: colorize
}
})();
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