UNPKG

/// <reference types="node" /> import ImageData from './image_data.js'; export declare const preprocessors: { readonly resize: { readonly name: "Resize"; readonly description: "Resize the image before compressing"; readonly instantiate: () => Promise<(buffer: Buffer | Uint8Array, input_width: number, input_height: number, { width, height, method, premultiply, linearRGB, }: { width?: number | undefined; height?: number | undefined; method: 'triangle' | 'catrom' | 'mitchell' | 'lanczos3'; premultiply: boolean; linearRGB: boolean; }) => ImageData>; readonly defaultOptions: { readonly method: "lanczos3"; readonly fitMethod: "stretch"; readonly premultiply: true; readonly linearRGB: true; }; }; readonly rotate: { readonly name: "Rotate"; readonly description: "Rotate image"; readonly instantiate: () => Promise<(buffer: Buffer | Uint8Array, width: number, height: number, { numRotations }: { numRotations: number; }) => Promise<ImageData>>; readonly defaultOptions: { readonly numRotations: 0; }; }; }; export declare const codecs: { readonly mozjpeg: { readonly name: "MozJPEG"; readonly extension: "jpg"; readonly detectors: readonly [RegExp]; readonly dec: () => { decode?: ((buffer: Uint8Array | Buffer, width: number, height: number, opts: any) => Buffer) | undefined; encode?: ((buffer: Uint8Array | Buffer, width: number, height: number, opts: any) => Buffer) | undefined; }; readonly enc: () => { decode?: ((buffer: Uint8Array | Buffer, width: number, height: number, opts: any) => Buffer) | undefined; encode?: ((buffer: Uint8Array | Buffer, width: number, height: number, opts: any) => Buffer) | undefined; }; readonly defaultEncoderOptions: { readonly quality: 75; readonly baseline: false; readonly arithmetic: false; readonly progressive: true; readonly optimize_coding: true; readonly smoothing: 0; readonly color_space: 3; readonly quant_table: 3; readonly trellis_multipass: false; readonly trellis_opt_zero: false; readonly trellis_opt_table: false; readonly trellis_loops: 1; readonly auto_subsample: true; readonly chroma_subsample: 2; readonly separate_chroma_quality: false; readonly chroma_quality: 75; }; readonly autoOptimize: { readonly option: "quality"; readonly min: 0; readonly max: 100; }; }; readonly webp: { readonly name: "WebP"; readonly extension: "webp"; readonly detectors: readonly [RegExp]; readonly dec: () => { decode?: ((buffer: Uint8Array | Buffer, width: number, height: number, opts: any) => Buffer) | undefined; encode?: ((buffer: Uint8Array | Buffer, width: number, height: number, opts: any) => Buffer) | undefined; }; readonly enc: () => { decode?: ((buffer: Uint8Array | Buffer, width: number, height: number, opts: any) => Buffer) | undefined; encode?: ((buffer: Uint8Array | Buffer, width: number, height: number, opts: any) => Buffer) | undefined; }; readonly defaultEncoderOptions: { readonly quality: 75; readonly target_size: 0; readonly target_PSNR: 0; readonly method: 4; readonly sns_strength: 50; readonly filter_strength: 60; readonly filter_sharpness: 0; readonly filter_type: 1; readonly partitions: 0; readonly segments: 4; readonly pass: 1; readonly show_compressed: 0; readonly preprocessing: 0; readonly autofilter: 0; readonly partition_limit: 0; readonly alpha_compression: 1; readonly alpha_filtering: 1; readonly alpha_quality: 100; readonly lossless: 0; readonly exact: 0; readonly image_hint: 0; readonly emulate_jpeg_size: 0; readonly thread_level: 0; readonly low_memory: 0; readonly near_lossless: 100; readonly use_delta_palette: 0; readonly use_sharp_yuv: 0; }; readonly autoOptimize: { readonly option: "quality"; readonly min: 0; readonly max: 100; }; }; readonly oxipng: { readonly name: "OxiPNG"; readonly extension: "png"; readonly detectors: readonly [RegExp]; readonly dec: () => Promise<any>; readonly enc: () => Promise<{ encode: (buffer: Buffer | Uint8Array, width: number, height: number, opts: any) => any; }>; readonly defaultEncoderOptions: { readonly level: 2; }; readonly autoOptimize: { readonly option: "level"; readonly min: 6; readonly max: 1; }; }; };