@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix orcid: <https://orcid.org/> .
@prefix this: <http://purl.org/np/RArWETwZLOap_HslX7aZOrOeUGNGQUU4kxFhzHbn74rB4> .
@prefix sub: <http://purl.org/np/RArWETwZLOap_HslX7aZOrOeUGNGQUU4kxFhzHbn74rB4#> .
@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 "3.8.6.final.0" .
  
  sub:img a pplan:Variable;
    rdfs:comment "None";
    rdfs:label "img" .
  
  sub:out1 a pplan:Variable;
    rdfs:comment "None";
    rdfs:label "out1" .
  
  sub:step a bpmn:ScriptTask, pplan:Step;
    dcterms:description """@is_fairstep(label='Make white background of image transparent')
def white_to_transparency(img):
    from PIL import Image
    img = img.convert(\"RGBA\")
    data = img.getdata()
    new_data = []
    for item in data:
        if item[0] == 255 and item[1] == 255 and item[2] == 255:
            new_data.append((255, 255, 255, 0))
        else:
            new_data.append(item)
    img.putdata(new_data)
    return img
""";
    dcterms:language sub:LinguisticSystem;
    pplan:hasInputVar sub:img;
    pplan:hasOutputVar sub:out1;
    rdfs:label "Make white background of image transparent" .
}

sub:provenance {
  sub:assertion prov:generatedAtTime "2021-04-30T15:31:02.214322"^^xsd:dateTime .
}

sub:pubInfo {
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwUtewGCpT5vIfXYE1bmf/Uqu1ojqnWdYxv+ySO80ul8Gu7m8KoyPAwuvaPj0lvPtHrg000qMmkxzKhYknEjq8v7EerxZNYp5B3/3+5ZpuWOYAs78UnQVjbHSmDdmryr4D4VvvNIiUmd0yxci47dTFUj4DvfHnGd6hVe5+goqdcwIDAQAB";
    npx:hasSignature "mnFtV5+mGlpJN7snljFpkF3wg9vurUZICdmTxX6ZDuCFLQGheBfItatEtzGXDAj9A0kMaHU6m+EnB2W7UZ6P7J0av0IZ1Dl5hPH1vPMslcjIdQXpO5d4le63cRGTJO5if0y/DJ+6v6GWfTGfDz0b02IlzyYSPqlXBEfxxbBaFEY=";
    npx:hasSignatureTarget this: .
  
  this: npx:introduces sub:step;
    prov:generatedAtTime "2021-04-30T15:31:02.214322"^^xsd:dateTime;
    prov:wasAttributedTo orcid:0000-0002-1267-0234 .
}