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Docs: refresh for metadata example #3127

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Lovell Fuller 2022-03-09 16:02:27 +00:00
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docs/api-input.md
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@ -11,8 +11,8 @@ A `Promise` is returned when `callback` is not provided.
* `format`: Name of decoder used to decompress image data e.g. `jpeg`, `png`, `webp`, `gif`, `svg`
* `size`: Total size of image in bytes, for Stream and Buffer input only
* `width`: Number of pixels wide (EXIF orientation is not taken into consideration)
* `height`: Number of pixels high (EXIF orientation is not taken into consideration)
* `width`: Number of pixels wide (EXIF orientation is not taken into consideration, see example below)
* `height`: Number of pixels high (EXIF orientation is not taken into consideration, see example below)
* `space`: Name of colour space interpretation e.g. `srgb`, `rgb`, `cmyk`, `lab`, `b-w` [...][1]
* `channels`: Number of bands e.g. `3` for sRGB, `4` for CMYK
* `depth`: Name of pixel depth format e.g. `uchar`, `char`, `ushort`, `float` [...][2]
@ -63,6 +63,18 @@ image
});
```
```javascript
// Based on EXIF rotation metadata, get the right-side-up width and height:
const size = getNormalSize(await sharp(input).metadata());
function getNormalSize({ width, height, orientation }) {
return orientation || 0 >= 5
? { width: height, height: width }
: { width, height };
}
```
Returns **([Promise][5]<[Object][6]> | Sharp)**
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