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@blameitonyourisp/blurrid

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Generate and render blurred placeholders for lazy loaded images.

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export class BlurridEncoder { /** * Create encoder instance from downsized image sample. * * @param {object} obj - Object destructured argument. * @param {Buffer} obj.buffer - Buffer of flat, 4-channel rgba pixel data. * @param {number} obj.width - Width of downsized sample image for blur. * @param {number} obj.height - Height of downsized sample image for blur. */ constructor({ buffer, width, height }: { buffer: Buffer; width: number; height: number; }); /** * Encode downsized sample image into serialized string containing Blurrid * dct coefficients. * * @param {object} obj - Object destructured argument. * @param {number} [obj.length=64] - Desired length of encoded string. * @param {string} [obj.subsampling="4:2:2"] - Chroma subsampling string of * the form "Y:Cb:Cr" where Y, Cb, Cr are all 3-bit numbers from 0-7 * inclusive, corresponding to the sampling rates of luma, chroma blue * and chroma red dct coefficients in the encoded string. * @returns {string} */ toString({ length, subsampling }?: { length?: number | undefined; subsampling?: string | undefined; }): string; #private; }