Image mosaic generator in node.js.
dims: dimensions in pixels of each tile in the format "#x#".
grid: number of pixels in the format "#x#".
src: url or path to source image or video.
dir: relative path of the directory containing images to use in the mosaic. Default is "images".
fps: number of frames per second if the src is video. Default is 6.
save: filename of final output. Default is "mosaic.jpg".
tint: opacity of image on top of original pixel colour. Default is 0.7.
tmp: relative path of temp directory, will be removed after process. Default is "tmp".