From octave-sources-request at bevo dot che dot wisc dot edu Sun Sep 26 15:31:18 1999 Subject: Conversion routines from CIE XYZ primaries to xyz chromaticity From: Peter Hopfgartner To: octave-sources at bevo dot che dot wisc dot edu Date: Sun, 26 Sep 1999 18:11:27 +0000 This is a multi-part message in MIME format. --------------68E20DBFF05D326201CAE16F Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: base64 SGVsbG8sDQoNCkkgaGF2ZSBzYW1lIHNtYWxsIHJvdXRpbmVzIGZvciB3b3JrIG9uIGNvbG9y IHNwYWNlcy4gSW4gcGFydGljdWxhciBoZXJlDQphcmUgdHdvIHJvdXRpbmVzIHRvIGNvbnZl cnQgZnJvbSBDSUUgcHJpbWFyaWVzIHRvIENJRSBjaHJvbWF0aWNpdHkgdmFsdWUNCihCaWJs aW9ncmFwaHkgaXMgaW4gdGhlIHJvdXRpbmVzKS4NCg0KSXMgdGhlcmUgYW55Ym9keSBpbnRl cmVzdGVkIGluPyBMZXQgbWUga25vdyB5b3VyIGNvbW1lbnRzLiBJZiB0aGlzIGtpbmQNCm9m IHRoaW5ncyBjYW4gaW50ZXJlc3QgYW55Ym9keSwgSSBoYXZlIHNvbWUgbW9yZSwgYnV0IEkg aGF2ZSB0byBjbGVhbg0KdGhlbSB1cC4NCg0KcGV0ZXINCg== --------------68E20DBFF05D326201CAE16F Content-Type: application/octet-stream; name="xyY2XYZ.m" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="xyY2XYZ.m" IyMgICAgQ29udmVydGlvbiBmcm9tIHRoZSBjaHJvbWF0aWNpdHkgdmFsdWVzIHgsIHkgYW5k IHRoZSBsdW1pbm9jaXR5IFkKIyMgICAgdG8gdGhlIENJRSBwaW1hcmllcyBYLCBZLCBaCiMj CiMjICAgIElmIHRoZSBsdW1pbm9jaXR5IFkgaXMgbm90IHN1cHBsaWVkLCBhIHZhbHVlIG9m IDEgaXMgdXNlZAojIyAgICBJbnB1dCBhcmd1bWVudCBtdXN0IGhhdmUgMyBjb2x1bW5zCiMj ICAgIAojIwojIyAgICBSZWZlcmVuY2U6CiMjICAgICAgQ29tcHV0ZXIgR3JhcGhpY3MsIFBy aW5jaXBsZSBhbmQgUHJhY3RpY2UsIEZvbGV5IGV0LiBhbC4KIyMgICAgICAgIEFkZGlzb24g V2VzbGV5LCAybmQgZWQgaW4gQywgMTk5NiwgSVNCTiAwLTIwMS04NDg0MC02CiMjICAgICAg ICBDaGFwdGVyIDEzCiMjICAgICAgRnJlcXVlbnRseSBRdWVzdGlvbnMgYWJvdXQgQ29sb3Is IEMuIEEuIFBveW50b24sCiMjICAgICAgICBmdHA6Ly9mdHAuaW5mb3JhbXAubmV0L3B1Yi91 c2Vycy9wb3ludG9uL2RvYy9jb2xvdXIvQ29sb3JGQVEucGRmCiMjCiMjICAgICAgQ0lFICA9 PSBDb21taXNzaW9uIEludGVybmF0aW9uYWxlIGRlIGwnRWNsYWlyYWdlCiMjCiMjICAgICAg U0VFIEFMU086IFhZWjJ4eXoKIyMgICAgICBBdXRob3I6IFBldGVyIEhvcGZnYXJ0bmVyIDxo b3BmZ2FydG5lckByb2xtYWlsLm5ldD4KIyMgICAgICBDcmVhdGVkOiBTZXB0ZW1iZXIgMTk5 OQoKZnVuY3Rpb24gW1hZWl09IHh5WTJYWVogKHh5WSkKCiAgaWYgKG5hcmdpbiAhPSAxKQog ICAgdXNhZ2UgKCJbWFlaXT0geHlZMlhZWiAoeHlZKSIpOwogIGVuZGlmCgkJCQkjIGlmIG5v IGx1bWluYW5jZSBpbmZvcm1hdGlvbiBpcwoJCQkJIyBzdXBwbGllZCwgWSBpcyBhc3N1bWVk IHRvIGJlIDEKICBpZiAoY29sdW1ucyh4eVkpID09IDIpCiAgICBZID0gb25lcyhyb3dzKHh5 WSksIDEpOwogICAgeHlZPVt4eVkoOiwxKSwgeHlZKDosMiksIFldOwogIGVuZGlmCiAgaWYg KGNvbHVtbnMoeHlZKSAhPSAzKQogICAgZXJyb3IgKCJBcmd1bWVudCBtdXN0IGhhdmUgMiBv ciAzIGNvbHVtbnMiKTsKICBlbmRpZgogIAogIFhZWig6LDEpID0gKHh5WSg6LDEpL3h5WSg6 LDIpKSAqIHh5WSg6LDMpOwogIFhZWig6LDIpID0geHlZKDosMyk7CiAgWFlaKDosMykgPSAo KDEgLSB4eVkoOiwxKSAtIHh5WSg6LDIpKS94eVkoOiwyKSkgKiB4eVkoOiwzKTsKICAKZW5k ZnVuY3Rpb24K --------------68E20DBFF05D326201CAE16F Content-Type: application/octet-stream; name="XYZ2xyz.m" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="XYZ2xyz.m" IyMgICAgW3h5el09IFhZWjJ4eXogKFhZWikgY29udmVydHMgZnJvbSB0aGUgQ0lFIHByaW1h cmllcyBYWVoKIyMgICAgdHJpc3RpbXVsdXMgdmFsdWVzIHRvIENJRSBjaHJvbWF0aWNpdHkg Y29vcmRpbmF0ZXMgeHl6LgojIyAgICBOb3RlIHRoYXQgeCArIHkgKyB6ID0gMS4gVGh1cywg b25lIG9mIHRoZSAzIHZhbHVlcywgdXN1YWxsbHkgeiwKIyMgICAgY2FuIGJlIHJlY29uc3Ry dWN0ZWQgZnJvbSB0aGUgb3RoZXIgdmFsdWVzLiBUaHVzLCBpdCBpcyBub3QKIyMgICAgcG9z c2libGUgdG8gZG8gdGhlIGludmVyc2UgZnVuY3Rpb24sIHJlY29uc3RydWN0aW5nIHRoZSBw cmltYXJpZXMKIyMgICAgWFlaIGZyb20gdGhlIGNocm9tYXRpY2l0eSB2YWx1ZXMgeHl6LiBU aGUgbHVtaW5hbmNlIGluZm9ybWF0aW9uIGlzCiMjICAgIGxvc3QuCiMjCiMjICAgIElucHV0 IGFyZ3VtZW50IG11c3QgaGF2ZSAzIGNvbHVtbnMKIyMgICAgCiMjICAgIE9ubHkgdGhlIHgg YW5kIHkgdmFsdWUgaGF2ZSB0aGUgbWVhbmluZyBvZiBjaHJvbWF0aWNpdHkKIyMgICAgeiBp cyB1c2VkIGZvciB0aGUgcmVjb25zdHJ1Y3Rpb24gb2YgdGhlIG9yaWdpbmFsIGNvbG9yCiMj CiMjCiMjICAgIFJlZmVyZW5jZToKIyMgICAgICBDb21wdXRlciBHcmFwaGljcywgUHJpbmNp cGxlIGFuZCBQcmFjdGljZSwgRm9sZXkgZXQuIGFsLgojIyAgICAgICAgQWRkaXNvbiBXZXNs ZXksIDJuZCBlZCBpbiBDLCAxOTk2LCBJU0JOIDAtMjAxLTg0ODQwLTYKIyMgICAgICAgIENo YXB0ZXIgMTMKIyMgICAgICBGcmVxdWVudGx5IFF1ZXN0aW9ucyBhYm91dCBDb2xvciwgQy4g QS4gUG95bnRvbiwKIyMgICAgICAgIGZ0cDovL2Z0cC5pbmZvcmFtcC5uZXQvcHViL3VzZXJz L3BveW50b24vZG9jL2NvbG91ci9Db2xvckZBUS5wZGYKIyMKIyMgICAgICBDSUUgID09IENv bW1pc3Npb24gSW50ZXJuYXRpb25hbGUgZGUgbCdFY2xhaXJhZ2UKIyMKIyMgICAgICBTRUUg QUxTTzogeHlZMlhZWgojIyAgICAgIEF1dGhvcjogUGV0ZXIgSG9wZmdhcnRuZXIgPGhvcGZn YXJ0bmVyQHJvbG1haWwubmV0PgojIyAgICAgIENyZWF0ZWQ6IFNlcHRlbWJlciAxOTk5Cgpm dW5jdGlvbiBbeHl6XT0gWFlaMnh5eiAoWFlaKQoKICBpZiAobmFyZ2luICE9IDEpCiAgICB1 c2FnZSAoIlt4eXpdPSBYWVoyeHl6IChYWVopIik7CiAgZW5kaWYKICBpZiAoY29sdW1ucyhY WVopICE9IDMpCiAgICBlcnJvciAoIlZlY3RvciBhcmd1bWVudCBtdXN0IGhhdmUgMyBlbGVt ZW50cyIpOwogIGVuZGlmCgogIHh5eig6LDEpID0gWFlaKDosMSkvKFhZWig6LDEpICsgWFla KDosMikgKyBYWVooOiwzKSk7IAogIHh5eig6LDIpID0gWFlaKDosMikvKFhZWig6LDEpICsg WFlaKDosMikgKyBYWVooOiwzKSk7IAogIHh5eig6LDMpID0gWFlaKDosMykvKFhZWig6LDEp ICsgWFlaKDosMikgKyBYWVooOiwzKSk7CiAgCmVuZGZ1bmN0aW9uCg== --------------68E20DBFF05D326201CAE16F--