@prefix this: <http://purl.org/np/RAJ3RkjKcNwAlc213JYMY85quknADSURM9iWJw4mqB2rg> .
@prefix sub: <http://purl.org/np/RAJ3RkjKcNwAlc213JYMY85quknADSURM9iWJw4mqB2rg#> .
@prefix schema: <https://schema.org/> .
@prefix bpmn: <http://dkm.fbk.eu/index.php/BPMN2_Ontology#> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix dc1: <http://purl.org/dc/terms/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix npx: <http://purl.org/nanopub/x/> .
@prefix pplan: <http://purl.org/net/p-plan#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix prov: <http://www.w3.org/ns/prov#> .

sub:Head {
  this: np:hasAssertion sub:assertion;
    np:hasProvenance sub:provenance;
    np:hasPublicationInfo sub:pubInfo;
    a np:Nanopublication .
}

sub:assertion {
  sub:LinguisticSystem a schema:ComputerLanguage;
    rdfs:label "python";
    rdfs:seeAlso <https://www.wikidata.org/wiki/Q28865>;
    owl:versionInfo "3.7.9.final.0" .
  
  sub:image a pplan:Variable;
    rdfs:comment "None";
    rdfs:label "image" .
  
  sub:out1 a pplan:Variable;
    rdfs:comment "None";
    rdfs:label "out1" .
  
  sub:ratio a pplan:Variable;
    rdfs:comment "None";
    rdfs:label "ratio" .
  
  sub:step dc1:description """@is_fairstep(label='contrast image by factor')
def contrast_image(image, ratio):    
    from PIL import Image, ImageEnhance
    new_image= image.convert('RGB')
    new_image = ImageEnhance.Contrast(image)
    new_image= new_image.enhance(ratio)
    return new_image
""";
    dc1:language sub:LinguisticSystem;
    pplan:hasInputVar sub:image, sub:ratio;
    pplan:hasOutputVar sub:out1;
    a bpmn:ScriptTask, pplan:Step;
    rdfs:label "contrast image by factor" .
}

sub:provenance {
  sub:assertion prov:generatedAtTime "2021-06-14T13:34:38.574811"^^xsd:dateTime .
}

sub:pubInfo {
  sub:assertion prov:wasDerivedFrom <http://purl.org/np/RAY1W7VRGwNznJp18etfmPczbkQlvFRK8mSVj8x-jCtl8> .
  
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQClpbyhrv4QAxZqYfUrDxnoDtl+Bbsa8OWVR4Aq2YZaKdfKJ1QkoiOquFw2obzNo2fKQz4GtP7pU2yY2cMyLvUIYoID+cvZdSVobTBVS5Rolho5P9RqVV8LMxEAn7n6bOkUo4RqV5Kt/olfMLkoGleyNXhvpwCGsVVxZLbyQ82pKQIDAQAB";
    npx:hasSignature "Oi+Iu/z+e8P8vPvV+VrDBbGku+yYxeBW7HixQ0A9Jzlv5zF2adMgeIK39uhDmuO3s/gM7hMyhc4pCkS31JoTJ51KzDMuHi1JaFQ7xMep6ewlmaJN1Uyec4hHoD85xgs1QAsz1xa+jzx2cXsR4rR7HT5DXKXvqKOKuwIR0kdm1X4=";
    npx:hasSignatureTarget this: .
  
  this: npx:introduces sub:step;
    prov:generatedAtTime "2021-06-14T13:34:38.574811"^^xsd:dateTime;
    prov:wasAttributedTo <https://orcid.org/0000-0000-0000-0000> .
}