{
    "mode": "man",
    "parameter": "pgmbentley",
    "section": "1",
    "url": "https://www.chedong.com/phpMan.php/man/pgmbentley/1/json",
    "generated": "2026-06-15T16:42:47Z",
    "synopsis": "pgmbentley [pgmfile]",
    "sections": {
        "NAME": {
            "content": "pgmbentley - Bentleyize a portable graymap\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "pgmbentley [pgmfile]\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "Reads  a  portable  graymap  as  input.   Performs  The Bentley Effect, and writes a portable\ngraymap as output.\n\nThe Bentley Effect is described in \"Beyond Photography\" by  Holzmann,  chapter  4,  photo  4.\nIt's a vertical smearing based on brightness.\n",
            "subsections": []
        },
        "SEE ALSO": {
            "content": "pgmoil(1), ppmrelief(1), pgm(5)\n",
            "subsections": []
        },
        "AUTHOR": {
            "content": "Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)\n\n\n\n11 January 1991                             pgmbentley(1)",
            "subsections": []
        }
    },
    "summary": "pgmbentley - Bentleyize a portable graymap",
    "flags": [],
    "examples": [],
    "see_also": [
        {
            "name": "pgmoil",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/pgmoil/1/json"
        },
        {
            "name": "ppmrelief",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/ppmrelief/1/json"
        },
        {
            "name": "pgm",
            "section": "5",
            "url": "https://www.chedong.com/phpMan.php/man/pgm/5/json"
        }
    ],
    "tldr": {
        "source": "official",
        "description": "Bentleyize a PGM image.",
        "examples": [
            {
                "description": "Apply the Bentley Effect on a PGM image",
                "command": "pgmbentley {{path/to/input_file.pgm}} > {{path/to/output_file.pgm}}"
            }
        ]
    }
}