---
name: "gpiv_process-chain"
section: "1"
platform: "linux"
package: "gpivtools"
version: "0.6.0-3.1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/gpiv_process-chain"
---

# gpiv\_process-chain(1)

Processes a pipe of Gpiv-tool command's.

## NAME

gpiv\_process-chain - Processes a pipe of Gpiv-tool command's.

## SYNOPSIS

**gpiv\_process-chain**  \[**-af** *string*\]  \[**-h** \| **-help**\]  \[**-n** \| **-none\]**  **\[-c** \| **-clean\]**  **\[-fik**\] \[**-p** \| **-print\]**  **\[-pf** *-string\]*  *\[***-proc\_\***\]  \[**-t** *format*\]  \[**-v** \| *-version*\]  *filename*

## DESCRIPTION

**Gpiv\_process-chain** *processes a pipe of gpiv commands. Image* *evaluation/interrogation with* **gpiv\_rr** is always included, image recording may be prepended before interrogation, validation and post-processes may be appended to the chain. The *filename* represents the name of the image to be evaluated. The file naming conventions are idententic to the output of the individual Gpivtools programs: in case the output are (validated/scaled) PIV data, the data will be directed to *filename*.**piv**, with **-proc\_vorty** the output will be called *filename*.**vor**, with **-proc\_nstrain** the output will be called *filename*.**nstr** and, finally, with with **-proc\_sstrain** the output will be called *filename*.**sstr**.

This program does not use the parameter resources from libgpiv.

## Options

**-af** *string* Append *string* to file-base name.

- **-h** \| **--help**

  On-line help.

- **-n** \| **--none**

  Suppresses real execution.

- \-**c** \| **-clean**

  **Cleans up: removes raw image data and header.**

- **-fik**

  Use fi-keyline for filtering gpiv parms from README.

- **-p** \| **--print**

  Prints parameters, command line options and input and output filenames to stdout.

- \-**pf** *string*

  Prepend *string* to file-base name.

- \-**proc\_\***

  Defines processes to be included in the chain. **\*** is substituted by: imgrec, valid, scale, manipiv, flipx, flipy, revert, rot90, rot180 and vorty or nstrain or sstrain. Vorty, nstrain and sstrain may not be used in combination with **-t** *gpi*.

- **-t** *format*

  Image type or format: hdf (**.hdf**), dav (**.IMG**) or a type as defined by ImageMagic's convert. Default is raw binary image (**.r**).

- **-v** \| **--version**

  Prints version information to standard output, then exits successfully.

- *filename*

  Input image filename. Format may be: **.r**, **.hdf** (hdf), **.IMG** (davis), **.png**, **.gif**, **.tif** or**.bmp**.

## EXAMPLES

invoking: 'gpiv\_process-chain -proc\_valid -proc\_scale testfile.png' will actually perform: gpiv\_rr \< image.png \| gpiv\_errvec \> testfile.piv

invoking: 'gpiv\_process-chain -proc\_imgrec -proc\_valid -proc\_scale testfile.png' will do: gpiv\_recimg \| gpiv\_rr \| gpiv\_errvec \| gpiv\_scale \> testfile.piv

## SEE ALSO

gpivtools

## AUTHOR

Gerber Van der Graaf