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status](https://travis-ci.org/canastro/lens.svg?branch=master)\n\n\n# Work in progress\n\n# Lens\nLens are a series of modules to apply image filters on the browser while levaraging image-filters.\n\nYou can install and use a filter directly or you can use the [chainable module]((https://www.npmjs.com/package/lens-chainable)) to help you chain multiple filters and apply them to your DOM.\n\n# List of available filters:\n* [brightness](https://www.npmjs.com/package/lens-filter-brightness)\n* [color](https://www.npmjs.com/package/lens-filter-color)\n* [colorize](https://www.npmjs.com/package/lens-filter-colorize)\n* [contrast](https://www.npmjs.com/package/lens-filter-contrast)\n* [core](https://www.npmjs.com/package/lens-filter-core)\n* [gamma](https://www.npmjs.com/package/lens-filter-gamma)\n* [grayscale](https://www.npmjs.com/package/lens-filter-grayscale)\n* [invert](https://www.npmjs.com/package/lens-filter-invert)\n* [noise](https://www.npmjs.com/package/lens-filter-noise)\n* [sepia](https://www.npmjs.com/package/lens-filter-sepia)\n* [threshold](https://www.npmjs.com/package/lens-filter-threshold)\n\n# How to create new filters?\nA filter is a function that receives:\n\n* `data` - `Array` - Array with the image data\n* `options` - `Object` - Any options you need to apply your transformation \n* `nWorkers` - `Number` - The number of workers to be used\n\nIn this function you return the call to lens-core's `applyFilter` function while passing in the `data`, a `transform` function, the `options` and the `nWorkers`.\n\nThe transform function is where you really define your filter, it receives the `data`, `length` of the array to be transformed and the `options` and should return the array of the data transformed.\n\nHere is a simple example of brightness transformer:\n```js\nimport { applyFilter } from 'lens-core';\n\nconst transform = ({ data, length, options }) =\u003e {\n    for (let i = 0; i \u003c length; i += 4) {\n        data[i] += options.level;\n        data[i + 1] += options.level;\n        data[i + 2] += options.level;\n    }\n\n    return data;\n};\n\nexport default brightness = ({ data, options, nWorkers } = {}) =\u003e \n    applyFilter({ data, transform, options, nWorkers });\n\n```","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcanastro%2Flens","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcanastro%2Flens","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcanastro%2Flens/lists"}