Maintained by Zakodium

tiff


TIFF image decoder written entirely in JavaScript.

Installation

``console
npm install tiff
`

Compatibility

$3

The library can currently decode greyscale and RGB images (8, 16 or 32 bits).
It supports LZW compression and images with an additional alpha channel.

$3

Images compressed with Zlib/deflate algorithm are also supported.

API

$3

$3

Decodes the file and returns TIFF IFDs.

#### IFD object

Each decoded image is stored in an IFD.

##### IFD#data

The data property is a Typed Array containing the pixel data. It is a
Uint8Array for 8bit images, a Uint16Array for 16bit images and a
Float32Array for 32bit images.

##### Other properties of IFD

- size - number of pixels
- width - number of columns
- height - number of rows
- bitsPerSample - bit depth
- alpha - true if the image has an additional alpha channel
- xResolution
- yResolution
- resolutionUnit

$3

Returns the number of IFDs (pages) in the file.

$3

Returns true if the file has 2 or more IFDs (pages) and false if it has 1.
This is slightly more efficient than calling pageCount()` if all you need to
know is whether the file has multiple pages or not.

License

MIT