@prefix dct: <http://purl.org/dc/terms/> .
@prefix orcid: <https://orcid.org/> .
@prefix this: <http://purl.org/np/RATMoGh9M89Zh5fVupK66YF5dtDN_q7JQ0ROFeA5T7PRE> .
@prefix sub: <http://purl.org/np/RATMoGh9M89Zh5fVupK66YF5dtDN_q7JQ0ROFeA5T7PRE#> .
@prefix schema: <https://schema.org/> .
@prefix bpmn: <http://dkm.fbk.eu/index.php/BPMN2_Ontology#> .
@prefix np: <http://www.nanopub.org/nschema#> .
@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: a np:Nanopublication;
    np:hasAssertion sub:assertion;
    np:hasProvenance sub:provenance;
    np:hasPublicationInfo sub:pubInfo .
}

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 a bpmn:ScriptTask, pplan:Step;
    dct: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
""";
    dct:language sub:LinguisticSystem;
    pplan:hasInputVar sub:image, sub:ratio;
    pplan:hasOutputVar sub:out1;
    rdfs:label "contrast image by factor" .
}

sub:provenance {
  sub:assertion prov:generatedAtTime "2021-06-14T16:02:58.324724"^^xsd:dateTime .
}

sub:pubInfo {
  sub:assertion prov:wasDerivedFrom <http://purl.org/np/RAY1W7VRGwNznJp18etfmPczbkQlvFRK8mSVj8x-jCtl8> .
  
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDMC8tJ/NTnPLa3X73B+wxs7TTnL2yn2z1cNSywMAzbumK+o9XXnAqhdGJKzpPrWNbw3xT3XVY+Fd3mQaH2aeQxUpd/HG4HOmDoRiAeCNGzecHXwh09kzRixG0PuPPiMZ6XMG69vFosG+c2l75ceUrRM7XUs0+OZM1O0CX1aQEUaQIDAQAB";
    npx:hasSignature "jWmHJJ9vsF0h+R4CLC/StlM6J7gn3k1iXpMufKrkMwPB2qrscYt2TlMVhh7J6HgS/9+BOeOdsP6QxRW4W+POJmTRUUWHAKjvH2jazpAArzY76b7+HZ5PI7M8yONh47SFJC+b/CmpMYHN//CVJSv9D08/ARnUp0DY6Co8wWc0pls=";
    npx:hasSignatureTarget this: .
  
  this: npx:introduces sub:step;
    prov:generatedAtTime "2021-06-14T16:02:58.324724"^^xsd:dateTime;
    prov:wasAttributedTo orcid:0000-0000-0000-0000 .
}