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author | shamikam | 2017-01-16 02:56:17 +0530 |
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committer | shamikam | 2017-01-16 02:56:17 +0530 |
commit | a6df67e8bcd5159cde27556f4f6a315f8dc2215f (patch) | |
tree | e806e966b06a53388fb300d89534354b222c2cad /sci_gateway/cpp/opencv_lab2rgb.cpp | |
download | FOSSEE_Image_Processing_Toolbox-master.tar.gz FOSSEE_Image_Processing_Toolbox-master.tar.bz2 FOSSEE_Image_Processing_Toolbox-master.zip |
Diffstat (limited to 'sci_gateway/cpp/opencv_lab2rgb.cpp')
-rw-r--r-- | sci_gateway/cpp/opencv_lab2rgb.cpp | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/sci_gateway/cpp/opencv_lab2rgb.cpp b/sci_gateway/cpp/opencv_lab2rgb.cpp new file mode 100644 index 0000000..5de6b2d --- /dev/null +++ b/sci_gateway/cpp/opencv_lab2rgb.cpp @@ -0,0 +1,331 @@ +/* ==================================================================== */ +/* Author :Tess Zacharias */ +/* ==================================================================== */ +/* overloaded function */ +/* Syntax : return_matrix_3_xyz_values=lab2xyz(matrix_of_3_labvalues a) */ +/* Syntax : return_matrix_3_xyz_values=lab2xyz(matrix_of_3_labvalues a,String1 Name,String2 value) */ +/* ==================================================================== */ +/* ==================================================================== */ +#include <numeric> +#include "opencv2/core/core.hpp" +#include "opencv2/highgui/highgui.hpp" +#include "opencv2/opencv.hpp" +#include <iostream> +#include<stdio.h> +#include <sciprint.h> +#include<string.h> +using namespace cv; +using namespace std; + extern "C" + { + #include "api_scilab.h" + #include "Scierror.h" + #include "BOOL.h" + #include <localization.h> + // #include "../common.h" + #define REF_X .95047; // Observer= 2°, Illuminant= D65 +#define REF_Y 1.00000; +#define REF_Z 1.08883; + +struct Color +{ + float R,G,B,X,Y,Z,L,a,b; +}; + +Color lab2rgb1(float L, float a, float b) +{ + + + float y = (L + 16) / 116; + float x = a / 500 + y; + float z = y - b / 200; + if ( pow( y , 3 ) > 0.008856 ) + { + y = pow( y , 3 ); + } + else + { + y = ( y - 16 / 116 ) / 7.787; + } + if ( pow( x , 3 ) > 0.008856 ) + { + x = pow( x , 3 ); + } + else + { + x = ( x - 16 / 116 ) / 7.787; + } + if ( pow( z , 3 ) > 0.008856 ) + { + z = pow( z , 3 ); + } + else + { + z = ( z - 16 / 116 ) / 7.787; + } + float X= x *REF_X; + float Y= y *REF_Y; + float Z = z *REF_Z; + //X = X/100.f; //R 0..1 + //Y= Y/100.f; //G 0..1 + //Z= Z/100.f; //B 0..1 + float R1=3.240479*X-1.537150*Y -0.498535 *Z; + float G1=-0.969256*X+1.875992 *Y+0.041556* Z; + float B1=0.055648*X-0.204043*Y +1.057311*Z; + if( R1 > 0.0031308 ) + R1 = 1.055 * ( pow( R1, 1./2.4 ) ) - 0.055; + else + R1 = 12.92 * R1; + if( G1 > 0.0031308 ) + G1 = 1.055 * ( pow( G1, 1./2.4 ) ) - 0.055; + else + G1 = 12.92 * G1; + if( B1 > 0.0031308 ) + B1 = 1.055 * ( pow( B1, 1./2.4 ) ) - 0.055; + else + B1 = 12.92 * B1; + + + Color rgb; + rgb.R= R1; + rgb.G= G1; + rgb.B= B1; + return rgb; + +} + Color lab2rgb2(float L, float a, float b,char *s) +{ + double REF_X1; + double REF_Y1; + double REF_Z1; + if(!strcmp(s,"a")) + { + REF_X1=1.0985; + REF_Y1= 1.0000; + REF_Z1=0.3558; + } + else if(!strcmp(s,"c")) + { + REF_X1=0.9807; + REF_Y1= 1.0000; + REF_Z1=1.1822; + } + else if(!strcmp(s,"d50")) + { + REF_X1=0.9642; + REF_Y1= 1.0000; + REF_Z1=0.8251; + } + else if(!strcmp(s,"d65")) + { + REF_X1=0.9504; + REF_Y1= 1.0000; + REF_Z1= 1.0888; + } + else if(!strcmp(s,"icc")) + { + REF_X1=0.962; + REF_Y1=1.000; + REF_Z1= 0.8249; + } + else if(!strcmp(s,"e")) + { + REF_X1=1.000; + REF_Y1=1.000; + REF_Z1=1.000; + } + + float y = (L + 16) / 116; + float x = a / 500 + y; + float z = y - b / 200; + if ( pow( y , 3 ) > 0.008856 ) + { + y = pow( y , 3 ); + } + else + { + y = ( y - 16 / 116 ) / 7.787; + } + if ( pow( x , 3 ) > 0.008856 ) + { + x = pow( x , 3 ); + } + else + { + x = ( x - 16 / 116 ) / 7.787; + } + if ( pow( z , 3 ) > 0.008856 ) + { + z = pow( z , 3 ); + } + else + { + z = ( z - 16 / 116 ) / 7.787; + } + float X= x *REF_X; + float Y= y *REF_Y; + float Z = z *REF_Z; + X = X/100.f; //R 0..1 + Y= Y/100.f; //G 0..1 + Z= Z/100.f; //B 0..1 + float R1=3.240479*X-1.537150*Y -0.498535 *Z; + float G1=-0.969256*X+1.875992 *Y+0.041556* Z; + float B1=0.055648*X-0.204043*Y +1.057311*Z; + if( R1 > 0.0031308 ) + R1 = 1.055 * ( pow( R1, 1./2.4 ) ) - 0.055; + else + R1 = 12.92 * R1; + if( G1 > 0.0031308 ) + G1 = 1.055 * ( pow( G1, 1./2.4 ) ) - 0.055; + else + G1 = 12.92 * G1; + if( B1 > 0.0031308 ) + B1 = 1.055 * ( pow( B1, 1./2.4 ) ) - 0.055; + else + B1 = 12.92 * B1; + + + Color rgb; + rgb.R= R1*100; + rgb.G= G1*100; + rgb.B= B1*100; + return rgb; + +} + int opencv_lab2rgb(char *fname, unsigned long fname_len) + { + // Error management variable + SciErr sciErr; + //variable info + int iRows = 0; + int iCols = 0; + int piRows = 0; + int piCols = 0; + int* piAddr=NULL; + int* piAddr1=NULL; + int* piAddr3=NULL; + double *value=NULL; + int* piLen = NULL; + char **val; + int i,j; + int error; + Color out; + double check; + Mat img,dst; + float L,a,b; + int *piAddrNew = NULL; + //checking output argument + CheckOutputArgument(pvApiCtx,1,1); + //checking if number of input arguments are 3 + + int k=0; + // SciErr getMatrixOfDoubleInList(void* _pvCtx, int* _piParent, int _iItemPos, int* _piRows, int* _piCols, double** _pdblReal) + double *pstDataR = NULL; + double *pstDataG = NULL; + double *pstDataB = NULL; + sciErr = getVarAddressFromPosition(pvApiCtx,1,&piAddr); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + //retrive the matrix of the R values + sciErr = getMatrixOfDoubleInList(pvApiCtx, piAddr, 1, &iRows, &iCols, &pstDataR); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + //retrive address of the list + sciErr = getVarAddressFromPosition(pvApiCtx,1,&piAddr); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + //retrive the matrix of the G values + sciErr = getMatrixOfDoubleInList(pvApiCtx, piAddr, 2, &iRows, &iCols, &pstDataG); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + //retrive address of the list + sciErr = getVarAddressFromPosition(pvApiCtx,1,&piAddr); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + //retrive the matrix of the B values + sciErr = getMatrixOfDoubleInList(pvApiCtx, piAddr, 3, &iRows, &iCols, &pstDataB); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + int m=0; + double *r1,*g1,*b1; + r1=(double *)malloc(sizeof(double)*iRows*iCols); + g1=(double *)malloc(sizeof(double)*iRows*iCols); + b1=(double *)malloc(sizeof(double)*iRows*iCols); + for(int i=0;i<iRows;i++) + { + for(int j=0;j<iCols;j++) + { + // Vec3d intensity = img.at<Vec3d>(i,j); + L= (pstDataR[k]); + a= (pstDataG[k]); + b= (pstDataB[k++]); + out=lab2rgb1(L,a,b); + //cout<<R<<"\n"; + //cout<<G<<"\n"; + //cout<<B<<"\n"; + r1[m]=(out.R); + g1[m]=(out.G); + b1[m++]=(out.B); + } + } + + sciErr = createList(pvApiCtx, nbInputArgument(pvApiCtx) + 1, 3, &piAddrNew); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + + + //Adding the R value matrix to the list + //Syntax : createMatrixOfInteger32InList(void* _pvCtx, int _iVar, int* _piParent, int _iItemPos, int _iRows, int _iCols, const int* _piData) + sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 1, iRows,iCols, r1); + free(r1); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + + //Adding the G value matrix to the list + sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 2, iRows, iCols, g1); + free(g1); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + + //Adding the B value matrix to the list + sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 3, iRows, iCols, b1); + free(b1); + if(sciErr.iErr) + { + printError(&sciErr, 0); + return 0; + } + + + AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1; + ReturnArguments(pvApiCtx); + return 0; +} +} |