Log

1 개요

스칼라 또는 이미지와의 Log 연산을 수행하는 알고리즘입니다. 이미지 픽셀값을 스칼라 또는 대응하는 이미지 픽셀값을 밑으로 연산하며 음수에 경우 양수로 치환하여 연산을 진행합니다.

2 알고리즘 상세 설명

Source	Scalar Value : (2)
Source	Result

Fig. Scalar 값에 따른 결과 비교

Source
Source	Operand	Result

Fig. Image 값에 따른 결과 비교

Log 알고리즘은 각 채널에 대해 Log 연산을 수행합니다. 스칼라 연산과 이미지 연산을 지원합니다.

Scalar를 설정하지 않으면 기본적으로 자연산수 밑으로 정해집니다.

3 파라미터 설정 및 사용 방법

Source 픽셀의 각 채널에 대해 Scalar 연산을 수행할 Scalar 값을 설정합니다.

SetScalarValue(CMultiVar<double> mvScalarValue)

4 예제 코드

Scalar 연산

COperationLog operationLog;

CFLImage fliSourceImage;
CFLImage fliDestinationImage;
CMultiVar<double> mulVarScalar;
fliSourceImage.Load("../../ExampleImages/OperationLog/gradation_Horizontal.flif");

operationLog.SetSourceImage(fliSourceImage);
operationLog.SetDestinationImage(fliDestinationImage);
operationLog.SetOperationSource(EOperationSource_Scalar);
operationLog.SetScalarValue(mulVarScalar);

operationLog.Execute();

COperationLog operationLog = new COperationLog();

CFLImage fliSourceImage = new CFLImage();
CFLImage fliDestinationImage = new CFLImage();
CMultiVar<double> mulVarScalar = new CMultiVar<double>();
fliSourceImage.Load("../../ExampleImages/OperationLog/gradation_Horizontal.flif");

operationLog.SetSourceImage(ref fliSourceImage);
operationLog.SetDestinationImage(ref fliDestinationImage);
operationLog.SetOperationSource(EOperationSource.Scalar);
operationLog.SetScalarValue(mulVarScalar);

operationLog.Execute();

operationLog = COperationLog()

fliSourceImage = CFLImage()
fliDestinationImage = CFLImage()
mulVarScalar = CMultiVar[Double]()
fliSourceImage.Load("../../ExampleImages/OperationLog/gradation_Horizontal.flif")

operationLog.SetSourceImage(fliSourceImage)
operationLog.SetDestinationImage(fliDestinationImage)
operationLog.SetOperationSource(EOperationSource.Scalar)
operationLog.SetScalarValue(mulVarScalar)

operationLog.Execute()

Image 연산

COperationLog operationLog;

CFLImage fliSourceImage;
CFLImage fliOperandImage;
CFLImage fliDestinationImage;
fliSourceImage.Load("../../ExampleImages/OperationLog/gradation_Horizontal.flif");
fliOperandImage.Load("../../ExampleImages/OperationLog/gradation_Vertical.flif");

operationLog.SetSourceImage(fliSourceImage);
operationLog.SetOperandImage(fliOperandImage);
operationLog.SetDestinationImage(fliDestinationImage);
operationLog.SetOperationSource(EOperationSource_Image);

operationLog.Execute();

COperationLog operationLog = new COperationLog();

CFLImage fliSourceImage = new CFLImage();
CFLImage fliOperandImage = new CFLImage();
CFLImage fliDestinationImage = new CFLImage();
fliSourceImage.Load("../../ExampleImages/OperationLog/gradation_Horizontal.flif");
fliOperandImage.Load("../../ExampleImages/OperationLog/gradation_Vertical.flif");

operationLog.SetSourceImage(ref fliSourceImage);
operationLog.SetOperandImage(ref fliOperandImage);
operationLog.SetDestinationImage(ref fliDestinationImage);
operationLog.SetOperationSource(EOperationSource.Image);

operationLog.Execute();

operationLog = COperationLog()

fliSourceImage = CFLImage()
fliOperandImage = CFLImage()
fliDestinationImage = CFLImage()
fliSourceImage.Load("../../ExampleImages/OperationLog/gradation_Horizontal.flif")
fliOperandImage.Load("../../ExampleImages/OperationLog/gradation_Vertical.flif")

operationLog.SetSourceImage(fliSourceImage)
operationLog.SetOperandImage(fliOperandImage)
operationLog.SetDestinationImage(fliDestinationImage)
operationLog.SetOperationSource(EOperationSource.Image)

operationLog.Execute()