CIccEvalCompare Class Reference

#include <IccEval.h>

Inheritance diagram for CIccEvalCompare:

Collaboration diagram for CIccEvalCompare:

Public Member Functions
virtual void	Compare (icFloatNumber *pPixel, icFloatNumber *deviceLab, icFloatNumber *destLab1, icFloatNumber *destLab2)=0
icStatusCMM	EvaluateProfile (CIccProfile *pProfile, icUInt8Number nGran=0, icRenderingIntent nIntent=((icRenderingIntent) 0x3f3f3f3f), icXformInterp nInterp=icInterpLinear, bool buseMpeTags=true)
icStatusCMM	EvaluateProfile (const icChar *szProfilePath, icUInt8Number nGran=0, icRenderingIntent nIntent=((icRenderingIntent) 0x3f3f3f3f), icXformInterp nInterp=icInterpLinear, bool buseMpeTags=true)

Detailed Description

Definition at line 81 of file IccEval.h.

Member Function Documentation

Compare()

virtual void CIccEvalCompare::Compare ( icFloatNumber * pPixel, icFloatNumber * deviceLab, icFloatNumber * destLab1, icFloatNumber * destLab2 )

pure virtual

Implemented in CIccMinMaxEval, and CIccMinMaxEval.

EvaluateProfile() [1/2]

icStatusCMM CIccEvalCompare::EvaluateProfile	(	CIccProfile *	pProfile,
		icUInt8Number	nGran = 0,
		icRenderingIntent	nIntent = ((icRenderingIntent) 0x3f3f3f3f),
		icXformInterp	nInterp = icInterpLinear,
		bool	buseMpeTags = true )

Definition at line 82 of file IccEval.cpp.

{
  if (!pProfile)
  {
    return icCmmStatCantOpenProfile;
  }
 
  if (pProfile->m_Header.deviceClass!=icSigInputClass &&
    pProfile->m_Header.deviceClass!=icSigDisplayClass &&
    pProfile->m_Header.deviceClass!=icSigOutputClass &&
    pProfile->m_Header.deviceClass!=icSigColorSpaceClass)
  {
    return icCmmStatInvalidProfile;
  }
 
  CIccCmm dev2Lab(icSigUnknownData, icSigLabData);
  CIccCmm Lab2Dev2Lab(icSigLabData, icSigLabData, false);
 
  icStatusCMM result;
 
  result = dev2Lab.AddXform(*pProfile, nIntent, nInterp, NULL, icXformLutColorimetric, buseMpeTags);
 
  if (result!=icCmmStatOk) {
    return result;
  }
 
  result = dev2Lab.Begin();
  if (result != icCmmStatOk) {
    return result;
  }
 
  result = Lab2Dev2Lab.AddXform(*pProfile, nIntent, nInterp, NULL, icXformLutColorimetric, buseMpeTags);
  if (result != icCmmStatOk) {
    return result;
  }
 
  result = Lab2Dev2Lab.AddXform(*pProfile, nIntent, nInterp, NULL, icXformLutColorimetric, buseMpeTags);
  if (result != icCmmStatOk) {
    return result;
  }
 
  result = Lab2Dev2Lab.Begin();
  if (result != icCmmStatOk) {
    return result;
  }
 
  icFloatNumber sPixel[15];
  icFloatNumber devPcs[15], roundPcs1[15], roundPcs2[15];
 
  int ndim = icGetSpaceSamples(pProfile->m_Header.colorSpace);
  int ndim1 = ndim+1;
 
  // determine granularity
  if (!nGran)
  {
    CIccTagLutAtoB* pTag = (CIccTagLutAtoB*)pProfile->FindTag(icSigAToB0Tag+(nIntent==icAbsoluteColorimetric ? icRelativeColorimetric : nIntent));
    if (!pTag || ndim==3)
    {
      nGran = 33;
    }
    else {
      CIccCLUT* pClut = pTag->GetCLUT();
      if (pClut)
        nGran = pClut->GridPoints()+2;
      else
        nGran = 33;
    }
  }
 
  int i, j;
  icFloatNumber stepsize = (icFloatNumber)(1.0/(icFloatNumber)(nGran-1));
  icFloatNumber* steps = new icFloatNumber[ndim1];
  icFloatNumber nstart = 0.0;
  icFloatNumber nEnd = (icFloatNumber)(1.0+stepsize/2.0);
  for(j=0; j<ndim1; j++) {
    steps[j] = nstart;
  }
 
  while(steps[0]==nstart) {
    for(j=0; j<ndim; j++) {
      sPixel[j] = icMin(steps[j+1],1.0);
    }
    steps[ndim] = (steps[ndim]+stepsize);
    for(i=ndim; i>=0; i--) {
      if(steps[i]>nEnd) {
        steps[i] = nstart;
        steps[i-1] = (steps[i-1]+stepsize);
      }
      else break;
    }
 
    dev2Lab.Apply(devPcs, sPixel); //Convert device value to pcs from input table
    Lab2Dev2Lab.Apply(roundPcs1, devPcs);  //First round trip gets color into output gamut
    Lab2Dev2Lab.Apply(roundPcs2, roundPcs1);  //Second round trip find reproducibility error
 
    icLabFromPcs(devPcs);
    icLabFromPcs(roundPcs1);
    icLabFromPcs(roundPcs2);
 
    Compare(sPixel, devPcs, roundPcs1, roundPcs2);
  }
  
  return icCmmStatOk;
}

References CIccMBB::GetCLUT(), CIccCLUT::GridPoints(), icAbsoluteColorimetric, icCmmStatCantOpenProfile, icCmmStatInvalidProfile, icCmmStatOk, icGetSpaceSamples(), icLabFromPcs(), icMin(), icRelativeColorimetric, icSigAToB0Tag, icSigColorSpaceClass, icSigDisplayClass, icSigInputClass, icSigLabData, icSigOutputClass, icSigUnknownData, and icXformLutColorimetric.

Referenced by AnalyzeRoundTrip(), and main().

Here is the call graph for this function:

Here is the caller graph for this function:

EvaluateProfile() [2/2]

icStatusCMM CIccEvalCompare::EvaluateProfile	(	const icChar *	szProfilePath,
		icUInt8Number	nGran = 0,
		icRenderingIntent	nIntent = ((icRenderingIntent) 0x3f3f3f3f),
		icXformInterp	nInterp = icInterpLinear,
		bool	buseMpeTags = true )

Definition at line 189 of file IccEval.cpp.

{
  CIccProfile *pProfile = ReadIccProfile(szProfilePath);
 
  if (!pProfile) 
    return icCmmStatCantOpenProfile;
 
  icStatusCMM result = EvaluateProfile(pProfile, nGrid, nIntent, nInterp, buseMpeTags);
 
  delete pProfile;
 
  return result;
}

References icCmmStatCantOpenProfile, and ReadIccProfile().

Here is the call graph for this function:

---

The documentation for this class was generated from the following files:

• IccProfLib/IccEval.h
• IccProfLib/IccEval.cpp