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Docs: changelog and credit for #2762

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Lovell Fuller 2021-08-03 15:28:50 +01:00
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87
docs/api-constructor.md
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@ -13,43 +13,44 @@ Implements the [stream.Duplex][1] class.
### Parameters
* `input` **([Buffer][2] | [Uint8Array][3] | [Uint8ClampedArray][4] | [string][5])?** if present, can be
a Buffer / Uint8Array / Uint8ClampedArray containing JPEG, PNG, WebP, AVIF, GIF, SVG, TIFF or raw pixel image data, or
* `input` **([Buffer][2] | [Uint8Array][3] | [Uint8ClampedArray][4] | [Int8Array][5] | [Uint16Array][6] | [Int16Array][7] | [Uint32Array][8] | [Int32Array][9] | [Float32Array][10] | [Float64Array][11] | [string][12])?** if present, can be
a Buffer / Uint8Array / Uint8ClampedArray containing JPEG, PNG, WebP, AVIF, GIF, SVG or TIFF image data, or
a TypedArray containing raw pixel image data, or
a String containing the filesystem path to an JPEG, PNG, WebP, AVIF, GIF, SVG or TIFF image file.
JPEG, PNG, WebP, AVIF, GIF, SVG, TIFF or raw pixel image data can be streamed into the object when not present.
* `options` **[Object][6]?** if present, is an Object with optional attributes.
* `options` **[Object][13]?** if present, is an Object with optional attributes.
* `options.failOnError` **[boolean][7]** by default halt processing and raise an error when loading invalid images.
* `options.failOnError` **[boolean][14]** by default halt processing and raise an error when loading invalid images.
Set this flag to `false` if you'd rather apply a "best effort" to decode images, even if the data is corrupt or invalid. (optional, default `true`)
* `options.limitInputPixels` **([number][8] | [boolean][7])** Do not process input images where the number of pixels
* `options.limitInputPixels` **([number][15] | [boolean][14])** Do not process input images where the number of pixels
(width x height) exceeds this limit. Assumes image dimensions contained in the input metadata can be trusted.
An integral Number of pixels, zero or false to remove limit, true to use default limit of 268402689 (0x3FFF x 0x3FFF). (optional, default `268402689`)
* `options.sequentialRead` **[boolean][7]** Set this to `true` to use sequential rather than random access where possible.
* `options.sequentialRead` **[boolean][14]** Set this to `true` to use sequential rather than random access where possible.
This can reduce memory usage and might improve performance on some systems. (optional, default `false`)
* `options.density` **[number][8]** number representing the DPI for vector images in the range 1 to 100000. (optional, default `72`)
* `options.pages` **[number][8]** number of pages to extract for multi-page input (GIF, WebP, AVIF, TIFF, PDF), use -1 for all pages. (optional, default `1`)
* `options.page` **[number][8]** page number to start extracting from for multi-page input (GIF, WebP, AVIF, TIFF, PDF), zero based. (optional, default `0`)
* `options.subifd` **[number][8]** subIFD (Sub Image File Directory) to extract for OME-TIFF, defaults to main image. (optional, default `-1`)
* `options.level` **[number][8]** level to extract from a multi-level input (OpenSlide), zero based. (optional, default `0`)
* `options.animated` **[boolean][7]** Set to `true` to read all frames/pages of an animated image (equivalent of setting `pages` to `-1`). (optional, default `false`)
* `options.raw` **[Object][6]?** describes raw pixel input image data. See `raw()` for pixel ordering.
* `options.density` **[number][15]** number representing the DPI for vector images in the range 1 to 100000. (optional, default `72`)
* `options.pages` **[number][15]** number of pages to extract for multi-page input (GIF, WebP, AVIF, TIFF, PDF), use -1 for all pages. (optional, default `1`)
* `options.page` **[number][15]** page number to start extracting from for multi-page input (GIF, WebP, AVIF, TIFF, PDF), zero based. (optional, default `0`)
* `options.subifd` **[number][15]** subIFD (Sub Image File Directory) to extract for OME-TIFF, defaults to main image. (optional, default `-1`)
* `options.level` **[number][15]** level to extract from a multi-level input (OpenSlide), zero based. (optional, default `0`)
* `options.animated` **[boolean][14]** Set to `true` to read all frames/pages of an animated image (equivalent of setting `pages` to `-1`). (optional, default `false`)
* `options.raw` **[Object][13]?** describes raw pixel input image data. See `raw()` for pixel ordering.
* `options.raw.width` **[number][8]?** integral number of pixels wide.
* `options.raw.height` **[number][8]?** integral number of pixels high.
* `options.raw.channels` **[number][8]?** integral number of channels, between 1 and 4.
* `options.raw.premultiplied` **[boolean][7]?** specifies that the raw input has already been premultiplied, set to `true`
* `options.raw.width` **[number][15]?** integral number of pixels wide.
* `options.raw.height` **[number][15]?** integral number of pixels high.
* `options.raw.channels` **[number][15]?** integral number of channels, between 1 and 4.
* `options.raw.premultiplied` **[boolean][14]?** specifies that the raw input has already been premultiplied, set to `true`
to avoid sharp premultiplying the image. (optional, default `false`)
* `options.create` **[Object][6]?** describes a new image to be created.
* `options.create` **[Object][13]?** describes a new image to be created.
* `options.create.width` **[number][8]?** integral number of pixels wide.
* `options.create.height` **[number][8]?** integral number of pixels high.
* `options.create.channels` **[number][8]?** integral number of channels, either 3 (RGB) or 4 (RGBA).
* `options.create.background` **([string][5] | [Object][6])?** parsed by the [color][9] module to extract values for red, green, blue and alpha.
* `options.create.noise` **[Object][6]?** describes a noise to be created.
* `options.create.width` **[number][15]?** integral number of pixels wide.
* `options.create.height` **[number][15]?** integral number of pixels high.
* `options.create.channels` **[number][15]?** integral number of channels, either 3 (RGB) or 4 (RGBA).
* `options.create.background` **([string][12] | [Object][13])?** parsed by the [color][16] module to extract values for red, green, blue and alpha.
* `options.create.noise` **[Object][13]?** describes a noise to be created.
* `options.create.noise.type` **[string][5]?** type of generated noise, currently only `gaussian` is supported.
* `options.create.noise.mean` **[number][8]?** mean of pixels in generated noise.
* `options.create.noise.sigma` **[number][8]?** standard deviation of pixels in generated noise.
* `options.create.noise.type` **[string][12]?** type of generated noise, currently only `gaussian` is supported.
* `options.create.noise.mean` **[number][15]?** mean of pixels in generated noise.
* `options.create.noise.sigma` **[number][15]?** standard deviation of pixels in generated noise.
### Examples
@ -126,9 +127,9 @@ await sharp({
}).toFile('noise.png');
```
* Throws **[Error][10]** Invalid parameters
* Throws **[Error][17]** Invalid parameters
Returns **[Sharp][11]**
Returns **[Sharp][18]**
## clone
@ -196,7 +197,7 @@ Promise.all(promises)
});
```
Returns **[Sharp][11]**
Returns **[Sharp][18]**
[1]: http://nodejs.org/api/stream.html#stream_class_stream_duplex
@ -206,16 +207,30 @@ Returns **[Sharp][11]**
[4]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint8ClampedArray
[5]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String
[5]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Int8Array
[6]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object
[6]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint16Array
[7]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean
[7]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Int16Array
[8]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number
[8]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint32Array
[9]: https://www.npmjs.org/package/color
[9]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Int32Array
[10]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Error
[10]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Float32Array
[11]: #sharp
[11]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Float64Array
[12]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String
[13]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object
[14]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean
[15]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number
[16]: https://www.npmjs.org/package/color
[17]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Error
[18]: #sharp

16
docs/api-output.md
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@ -420,30 +420,36 @@ Returns **Sharp**
## raw
Force output to be raw, uncompressed, 8-bit unsigned integer (unit8) pixel data.
Force output to be raw, uncompressed pixel data.
Pixel ordering is left-to-right, top-to-bottom, without padding.
Channel ordering will be RGB or RGBA for non-greyscale colourspaces.
### Parameters
* `options` **[Object][6]?** output options
* `options.depth` **[string][2]** bit depth, one of: char, uchar (default), short, ushort, int, uint, float, complex, double, dpcomplex (optional, default `'uchar'`)
### Examples
```javascript
// Extract raw RGB pixel data from JPEG input
// Extract raw, unsigned 8-bit RGB pixel data from JPEG input
const { data, info } = await sharp('input.jpg')
.raw()
.toBuffer({ resolveWithObject: true });
```
```javascript
// Extract alpha channel as raw pixel data from PNG input
// Extract alpha channel as raw, unsigned 16-bit pixel data from PNG input
const data = await sharp('input.png')
.ensureAlpha()
.extractChannel(3)
.toColourspace('b-w')
.raw()
.raw({ depth: 'ushort' })
.toBuffer();
```
Returns **Sharp**
* Throws **[Error][4]** Invalid options
## tile

4
docs/changelog.md
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@ -29,6 +29,10 @@ Requires libvips v8.11.2
[#2704](https://github.com/lovell/sharp/pull/2704)
[@Daiz](https://github.com/Daiz)
* Allow bit depth to be set when using raw input and output.
[#2762](https://github.com/lovell/sharp/pull/2762)
[@mart-jansink](https://github.com/mart-jansink)
* Allow `negate` to act only on non-alpha channels.
[#2808](https://github.com/lovell/sharp/pull/2808)
[@rexxars](https://github.com/rexxars)

3
docs/humans.txt
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@ -215,3 +215,6 @@ GitHub: https://github.com/msalettes
Name: Taneli Vatanen
GitHub: https://github.com/Daiz
Name: Mart Jansink
GitHub: https://github.com/mart-jansink

2
docs/search-index.json
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File diff suppressed because one or more lines are too long

2
lib/constructor.js
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@ -94,7 +94,7 @@ const debuglog = util.debuglog('sharp');
*
* @param {(Buffer|Uint8Array|Uint8ClampedArray|Int8Array|Uint16Array|Int16Array|Uint32Array|Int32Array|Float32Array|Float64Array|string)} [input] - if present, can be
* a Buffer / Uint8Array / Uint8ClampedArray containing JPEG, PNG, WebP, AVIF, GIF, SVG or TIFF image data, or
* a Uint8Array / Uint8ClampedArray / Int8Array / Uint16Array / Int16Array / Uint32Array / Int32Array / Float32Array / Float64Array containing raw pixel image data, or
* a TypedArray containing raw pixel image data, or
* a String containing the filesystem path to an JPEG, PNG, WebP, AVIF, GIF, SVG or TIFF image file.
* JPEG, PNG, WebP, AVIF, GIF, SVG, TIFF or raw pixel image data can be streamed into the object when not present.
* @param {Object} [options] - if present, is an Object with optional attributes.

16
lib/output.js
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@ -727,31 +727,35 @@ function heif (options) {
}
/**
* Force output to be raw, uncompressed, 8-bit unsigned integer (unit8) pixel data.
* Force output to be raw, uncompressed pixel data.
* Pixel ordering is left-to-right, top-to-bottom, without padding.
* Channel ordering will be RGB or RGBA for non-greyscale colourspaces.
*
* @example
* // Extract raw RGB pixel data from JPEG input
* // Extract raw, unsigned 8-bit RGB pixel data from JPEG input
* const { data, info } = await sharp('input.jpg')
* .raw()
* .toBuffer({ resolveWithObject: true });
*
* @example
* // Extract alpha channel as raw pixel data from PNG input
* // Extract alpha channel as raw, unsigned 16-bit pixel data from PNG input
* const data = await sharp('input.png')
* .ensureAlpha()
* .extractChannel(3)
* .toColourspace('b-w')
* .raw()
* .raw({ depth: 'ushort' })
* .toBuffer();
*
* @returns {Sharp}
* @param {Object} [options] - output options
* @param {string} [options.depth='uchar'] - bit depth, one of: char, uchar (default), short, ushort, int, uint, float, complex, double, dpcomplex
* @throws {Error} Invalid options
*/
function raw (options) {
if (is.object(options)) {
if (is.defined(options.depth)) {
if (is.string(options.depth) && is.inArray(options.depth, ['char', 'uchar', 'short', 'ushort', 'int', 'uint', 'float', 'complex', 'double', 'dpcomplex'])) {
if (is.string(options.depth) && is.inArray(options.depth,
['char', 'uchar', 'short', 'ushort', 'int', 'uint', 'float', 'complex', 'double', 'dpcomplex']
)) {
this.options.rawDepth = options.depth;
} else {
throw is.invalidParameterError('depth', 'one of: char, uchar, short, ushort, int, uint, float, complex, double, dpcomplex', options.depth);