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

# gpiv\_highpass(1)

Image low-pass filtering program.

## NAME

gpiv\_lowpass - Image low-pass filtering program.

## SYNOPSIS

**gpiv\_highpass** \[**-h** \| **--help**\]  \[**-p** \| **--print**\]  \[**-t** *N* \| **--threshold** *N*\]  \[**-v** \| **--version**\]  \[*filename*\]  \< *stdin* \> *stdout*

## DESCRIPTION

**gpiv\_highpass** *High-pass filter for images.*

*The parameters read from the configuration resources (containing the* *key* **GPIV\_IMGPROC**) may be overruled by the command line options, as explained below.

## Options

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

  On-line help

- **-t** *N* \| **--threshold** *N*

  Threshold value

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

  Print version information on standard output, then exit successfully.

- *filename*

  Input image filename. Overrides *stdin* and *stdout* with the full *filename* of the image. Output will be written to *filename***.png**. Parameters are stored in *filename***.par** and may be used for future use by including them in *./gpivrc*. If *stdin* and *stdout* are used, the input is expected to be a PNG formatted image.

- gpivtools

  ## SEE ALSO

## AUTHOR

Gerber Van der Graaf