---
name: "ras2tiff"
section: "1"
platform: "linux"
package: "libtiff-tools"
version: "4.0.2-6+deb7u5"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/ras2tiff"
---

# ras2tiff(1)

create a TIFF file from a Sun rasterfile

## NAME

ras2tiff - create a TIFF file from a Sun rasterfile

## SYNOPSIS

**ras2tiff** \[ *options* \] *input.ras* *output.tif*

## DESCRIPTION

*ras2tiff* converts a file in the Sun rasterfile format to TIFF. By default, the TIFF image is created with data samples packed (*PlanarConfiguration*=1), compressed with the Lempel-Ziv & Welch algorithm (*Compression*=5), and with each strip no more than 8 kilobytes. These characteristics can overridden, or explicitly specified with the options described below.

Any colormap information in the rasterfile is carried over to the TIFF file by including a *Colormap* tag in the output file. If the rasterfile has a colormap, the *PhotometricInterpretation* tag is set to 3 (palette); otherwise it is set to 2 (RGB) if the depth is 24 or 1 (min-is-black) if the depth is not 24.

## OPTIONS

- **-c**

  Specify a compression scheme to use when writing image data: **-c none** for no compression, **-c packbits** for the PackBits compression algorithm, **-c jpeg** for the baseline JPEG compression algorithm, **-c zip** for the Deflate compression algorithm, and **-c lzw** for Lempel-Ziv & Welch (the default).

- **-r**

  Write data with a specified number of rows per strip; by default the number of rows/strip is selected so that each strip is approximately 8 kilobytes.

## BUGS

Does not handle all possible rasterfiles. In particular,  *ras2tiff* does not handle run-length encoded images.

## SEE ALSO

[**pal2rgb**(1)](/pal2rgb/1.md), [**tiffinfo**(1)](/tiffinfo/1.md), [**tiffcp**(1)](/tiffcp/1.md), [**tiffmedian**(1)](/tiffmedian/1.md), **libtiff**(3)

Libtiff library home page: **http://www.remotesensing.org/libtiff/**