---
name: "imsize"
section: "1"
platform: "linux"
package: "wcstools"
version: "3.9.7-1.1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/imsize"
---

# imsize(1)

Print size of image in WCS and pixels

## Name

imsize - Print size of image in WCS and pixels

## Synopsis

imsize \[-vcd\] \[-p scale\] \[-b ra dec\] \[-j ra dec\] FITS or IRAF file(s)

## Description

*imsize* is a utility for printing the region covered by an image using the world coordinate system parameters in IRAF and FITS image headers. It converts IRAF .imh image headers to a FITS format before extracting the information. For IRAF files, the image dimensions and the object name are set from the binary portion of the header.

## Options

- **-b \[\<RA\> \<Dec\>\]**

  Output B1950 (B1950) coordinates (optional center)

- **-c**

  Format output without pixel dimensions (optional size change)

- **-d**

  Format output as input to DSS getimage (optional size change)

- **-e**

  Add epoch of image to output line

- **-j \[\<RA\> \<Dec\>\]**

  Output J2000 (J2000) coordinates (optional center)

- **-n \<number\>**

  Number of decimal places in output (default 3)

- **-p \<scale\>**

  Initial plate scale in arcsec per pixel (default 0)

- **-r**

  Print range in RA and Dec

- **-v**

  Print more intermediate information for debugging

- **-z**

  Use AIPS classic projections instead of WCSLIB

## Author

Jessica Mink, SAO (jmink@cfa.harvard.edu)