NEWS

tiff 0.1-12 (2023-11-28)

bugfix: readTIFF(..., native=TRUE) returned incorrect results when the all parameter was used to pick individual images. (#10)

add support for readTIFF(..., payload=FALSE) which only retrieves metadata information from the file -- The following features have been inspired or ported from https://github.com/akoyabio/tiff fork by Kent Johnson:
Add limited support for tiled images. Supports 8-, 16- and 32-bit integer and float images with spp=1 or 3. No support for indexed, color map, as.is, or planar format color.
add the ability to read (or get info on) selected images by passing a vector in the 'all' parameter
add width, length, x.position, y.position, and, if available, rows.per.strip, tile.width, tile.length to the directory info returned when 'info=TRUE'.
stop with an error if 'as.is=TRUE' is used with a float image
fixed documentation typos
writeTIFF() uses path.expand() on supplied path

unix: use autoconf to detect libtiff flags to support static builds and optional tiff capabilities
add C-level function registration
minor updates to DESCRIPTION

bugfix: output of readTIFF(..., as.is=TRUE) with integer values was shifted by one (i.e., stored integer value x was returned as x + 1)
writeTIFF() now supports 32-bit (integer) output
writeTIFF() issues a warning if the input data range is outside [0, 1]

remove debugging output (it is now only shown if tiff is compiled with -DTIFF_DEBUG=1)

add support for 12-bit grayscale TIFF images in readTIFF() (Note that 12-bit TIFFs are outside of the standard, so we assume big-endian packing order)
add readTIFF(..., as.is=TRUE) which preserves the integer values used in the TIFF as they are (if applicable) instead of rescaling to reals

add readTIFF(..., indexed=TRUE) which return indexed images as color map and an index matrix.
fixed a bug in writing a TIFF file consisting of multiple subimages
prevent TIFF from re-entering error calls