---
name: "beads"
section: "1"
platform: "linux"
package: "beads"
version: "1.1.22-1+b5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/beads"
---

# beads(1)

2D gel electrophoresis spot detection

## NAME

beads - 2D gel electrophoresis spot detection

## SYNOPSIS

**beads** \[*--inverse --steps -p parameter file*\]... *-i INPUT -o OUTPUT*\

## DESCRIPTION

*detect and quantify spots in INPUT gel image file.*

- **-i**

  path to the gel image input file

- **-o**

  path to the output file

- **-p**, **--param**

  path to the parameter file

- **--inverse**

  inverse pixel intensity in the source gel image, must be "true" or "false" ("true" by default)

- **--steps**

  save each image computed by beads at each step of the process into TIFF files. This option can be used to tune parameter file.\

## OUTPUT

beads produces several files format as output: xml, txt, jpg, tif and svg. To choose the output file format, just write the corresponding extension in the output filename OUTPUT\

## AUTHORS

beads was written by Michel Zivy \<michel.zivy@moulon.inra.fr\> and Olivier Langella \<olivier.langella@moulon.inra.fr\>.\

## COPYRIGHT

Copyright CeCILL\

## SEE ALSO

The beads homepage :\
 http://pappso.inra.fr/bioinfo/beads/index.php