What Are the Latest Updates in "image-js/tiff" and How Do They Improve Functionality?

The "image-js/tiff" library is a tool for decoding TIFF images entirely using JavaScript.

This open-source project, managed under the MIT license, has seen significant contributions by the community and the organization Zakodium.

As of the latest updates, the library supports decoding greyscale and RGB images across 8, 16, or 32 bits and handles LZW compression as well as images with alpha channels.

The compatibility with various TIFF formats, including images compressed with the Zlib/deflate algorithm, marks a critical enhancement.

The library can efficiently decode multiple pages of a TIFF file and determine if the file contains multiple IFDs (pages), which is more efficient than other methods like pageCount() for multi-page files.

Each decoded image is represented within an IFD (Image File Directory), with the pixel data stored in a Typed Array format that matches the bit depth of the image—Uint8Array for 8bit, Uint16Array for 16bit, and Float32Array for 32bit images.

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