jiapengyu
39 lines
701 B
JavaScript
39 lines
701 B
JavaScript
import UTIF from 'utif';
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const MIME_TYPE = 'image/tiff';
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export default () => ({
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mime: { [MIME_TYPE]: ['tiff', 'tif'] },
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constants: {
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MIME_TIFF: MIME_TYPE
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},
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decoders: {
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[MIME_TYPE]: data => {
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const ifds = UTIF.decode(data);
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const page = ifds[0];
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UTIF.decodeImages(data, ifds);
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const rgba = UTIF.toRGBA8(page);
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return {
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data: Buffer.from(rgba),
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width: page.t256[0],
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height: page.t257[0]
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};
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}
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},
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encoders: {
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[MIME_TYPE]: image => {
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const tiff = UTIF.encodeImage(
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image.bitmap.data,
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image.bitmap.width,
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image.bitmap.height
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);
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return Buffer.from(tiff);
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}
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}
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});
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