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extra-dependencies/debian/lcms/lcms-1.19.dfsg2/tifficc/tiffdiff.c

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//
// Little cms
// Copyright (C) 1998-2006 Marti Maria
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "lcms.h"
#include "tiffio.h"
#include <time.h>
// xgetopt() interface -----------------------------------------------------
extern int xoptind;
extern char *xoptarg;
extern int xopterr;
extern char SW;
int cdecl xgetopt(int argc, char *argv[], char *optionS);
// ------------------------------------------------------------------------
static TIFF *Tiff1, *Tiff2, *TiffDiff;
static const char* TiffDiffFilename;
static const char* CGATSout;
static LCMSBOOL Verbose = FALSE;
typedef struct {
double n, x, x2;
double Min, Peak;
} STAT, *LPSTAT;
static STAT ColorantStat[4];
static STAT EuclideanStat;
static STAT ColorimetricStat;
static uint16 Channels;
static cmsHPROFILE hLab;
static
void ConsoleWarningHandler(const char* module, const char* fmt, va_list ap)
{
char e[512] = { '\0' };
if (module != NULL)
strcat(strcpy(e, module), ": ");
vsprintf(e+strlen(e), fmt, ap);
strcat(e, ".");
if (Verbose) {
fprintf(stderr, "\nWarning");
fprintf(stderr, " %s\n", e);
fflush(stderr);
}
}
static
void ConsoleErrorHandler(const char* module, const char* fmt, va_list ap)
{
char e[512] = { '\0' };
if (module != NULL)
strcat(strcpy(e, module), ": ");
vsprintf(e+strlen(e), fmt, ap);
strcat(e, ".");
fprintf(stderr, "\nError");
fprintf(stderr, " %s\n", e);
fflush(stderr);
}
// Force an error and exit w/ return code 1
static
void FatalError(const char *frm, ...)
{
va_list args;
va_start(args, frm);
ConsoleErrorHandler("TIFFDIFF", frm, args);
va_end(args);
if (hLab) cmsCloseProfile(hLab);
if (Tiff1) TIFFClose(Tiff1);
if (Tiff2) TIFFClose(Tiff2);
if (TiffDiff) TIFFClose(TiffDiff);
exit(1);
}
static
void Help()
{
fprintf(stderr, "Little cms TIFF compare utility. v1.0\n\n");
fprintf(stderr, "usage: tiffdiff [flags] input.tif output.tif\n");
fprintf(stderr, "\nflags:\n\n");
fprintf(stderr, "%co<tiff> - Output TIFF file\n", SW);
fprintf(stderr, "%cg<CGATS> - Output results in CGATS file\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "%cv - Verbose (show warnings)\n", SW);
fprintf(stderr, "%ch - This help\n", SW);
fflush(stderr);
exit(0);
}
// The toggles stuff
static
void HandleSwitches(int argc, char *argv[])
{
int s;
while ((s=xgetopt(argc,argv,"o:O:hHvVg:G:")) != EOF) {
switch (s) {
case 'v':
case 'V':
Verbose = TRUE;
break;
case 'o':
case 'O':
TiffDiffFilename = xoptarg;
break;
case 'H':
case 'h':
Help();
break;
case 'g':
case 'G':
CGATSout = xoptarg;
break;
default:
FatalError("Unknown option - run without args to see valid ones");
}
}
}
static
void ClearStatistics(LPSTAT st)
{
st ->n = st ->x = st->x2 = st->Peak = 0;
st ->Min = 1E10;
}
static
void AddOnePixel(LPSTAT st, double dE)
{
st-> x += dE; st ->x2 += (dE * dE); st->n += 1.0;
if (dE > st ->Peak) st ->Peak = dE;
if (dE < st ->Min) st ->Min= dE;
}
static
double Std(LPSTAT st)
{
return sqrt((st->n * st->x2 - st->x * st->x) / (st->n*(st->n-1)));
}
static
double Mean(LPSTAT st)
{
return st ->x/st ->n;
}
// Build up the pixeltype descriptor
static
DWORD GetInputPixelType(TIFF *Bank)
{
uint16 Photometric, bps, spp, extra, PlanarConfig, *info;
uint16 Compression, reverse = 0;
int ColorChannels, IsPlanar = 0, pt = 0;
TIFFGetField(Bank, TIFFTAG_PHOTOMETRIC, &Photometric);
TIFFGetFieldDefaulted(Bank, TIFFTAG_BITSPERSAMPLE, &bps);
if (bps == 1)
FatalError("Sorry, bilevel TIFFs has nothig to do with ICC profiles");
if (bps != 8 && bps != 16)
FatalError("Sorry, 8 or 16 bits per sample only");
TIFFGetFieldDefaulted(Bank, TIFFTAG_SAMPLESPERPIXEL, &spp);
TIFFGetFieldDefaulted(Bank, TIFFTAG_PLANARCONFIG, &PlanarConfig);
switch (PlanarConfig)
{
case PLANARCONFIG_CONTIG: IsPlanar = 0; break;
case PLANARCONFIG_SEPARATE: FatalError("Planar TIFF are not supported");
default:
FatalError("Unsupported planar configuration (=%d) ", (int) PlanarConfig);
}
// If Samples per pixel == 1, PlanarConfiguration is irrelevant and need
// not to be included.
if (spp == 1) IsPlanar = 0;
// Any alpha?
TIFFGetFieldDefaulted(Bank, TIFFTAG_EXTRASAMPLES, &extra, &info);
ColorChannels = spp - extra;
switch (Photometric) {
case PHOTOMETRIC_MINISWHITE:
reverse = 1;
case PHOTOMETRIC_MINISBLACK:
pt = PT_GRAY;
break;
case PHOTOMETRIC_RGB:
pt = PT_RGB;
break;
case PHOTOMETRIC_PALETTE:
FatalError("Sorry, palette images not supported (at least on this version)");
case PHOTOMETRIC_SEPARATED:
if (ColorChannels == 4)
pt = PT_CMYK;
else
if (ColorChannels == 3)
pt = PT_CMY;
else
if (ColorChannels == 6)
pt = PT_HiFi;
else
if (ColorChannels == 7)
pt = PT_HiFi7;
else
if (ColorChannels == 8)
pt = PT_HiFi8;
else
if (ColorChannels == 9)
pt = PT_HiFi9;
else
if (ColorChannels == 10)
pt = PT_HiFi10;
else
if (ColorChannels == 11)
pt = PT_HiFi11;
else
if (ColorChannels == 12)
pt = PT_HiFi8;
else
if (ColorChannels == 13)
pt = PT_HiFi13;
else
if (ColorChannels == 14)
pt = PT_HiFi14;
else
if (ColorChannels == 15)
pt = PT_HiFi15;
else
FatalError("What a weird separation of %d channels?!?!", ColorChannels);
break;
case PHOTOMETRIC_YCBCR:
TIFFGetField(Bank, TIFFTAG_COMPRESSION, &Compression);
{
uint16 subx, suby;
pt = PT_YCbCr;
TIFFGetFieldDefaulted(Bank, TIFFTAG_YCBCRSUBSAMPLING, &subx, &suby);
if (subx != 1 || suby != 1)
FatalError("Sorry, subsampled images not supported");
}
break;
case 9:
case PHOTOMETRIC_CIELAB:
pt = PT_Lab;
break;
case PHOTOMETRIC_LOGLUV: /* CIE Log2(L) (u',v') */
TIFFSetField(Bank, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_16BIT);
pt = PT_YUV; // *ICCSpace = icSigLuvData;
bps = 16; // 16 bits forced by LibTiff
break;
default:
FatalError("Unsupported TIFF color space (Photometric %d)", Photometric);
}
// Convert bits per sample to bytes per sample
bps >>= 3;
return (COLORSPACE_SH(pt)|PLANAR_SH(IsPlanar)|EXTRA_SH(extra)|CHANNELS_SH(ColorChannels)|BYTES_SH(bps)|FLAVOR_SH(reverse));
}
static
DWORD OpenEmbedded(TIFF* tiff, cmsHPROFILE* PtrProfile, cmsHTRANSFORM* PtrXform)
{
DWORD EmbedLen, dwFormat = 0;
LPBYTE EmbedBuffer;
*PtrProfile = NULL;
*PtrXform = NULL;
if (TIFFGetField(tiff, TIFFTAG_ICCPROFILE, &EmbedLen, &EmbedBuffer)) {
*PtrProfile = cmsOpenProfileFromMem(EmbedBuffer, EmbedLen);
if (Verbose) {
fprintf(stdout, "Embedded profile found : %s\n", cmsTakeProductDesc(*PtrProfile));
fflush(stdout);
}
dwFormat = GetInputPixelType(tiff);
*PtrXform = cmsCreateTransform(*PtrProfile, dwFormat,
hLab, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, cmsFLAGS_NOTPRECALC);
}
return dwFormat;
}
static
size_t PixelSize(DWORD dwFormat)
{
return T_BYTES(dwFormat) * (T_CHANNELS(dwFormat) + T_EXTRA(dwFormat));
}
static
int CmpImages(TIFF* tiff1, TIFF* tiff2, TIFF* diff)
{
LPBYTE buf1, buf2, buf3;
int row, cols, imagewidth = 0, imagelength = 0;
uint16 Photometric;
double dE;
double dR, dG, dB, dC, dM, dY, dK;
int rc = 0;
cmsHPROFILE hProfile1 = 0, hProfile2 = 0;
cmsHTRANSFORM xform1 = 0, xform2 = 0;
DWORD dwFormat1, dwFormat2;
TIFFGetField(tiff1, TIFFTAG_PHOTOMETRIC, &Photometric);
TIFFGetField(tiff1, TIFFTAG_IMAGEWIDTH, &imagewidth);
TIFFGetField(tiff1, TIFFTAG_IMAGELENGTH, &imagelength);
TIFFGetField(tiff1, TIFFTAG_SAMPLESPERPIXEL, &Channels);
dwFormat1 = OpenEmbedded(tiff1, &hProfile1, &xform1);
dwFormat2 = OpenEmbedded(tiff2, &hProfile2, &xform2);
buf1 = (LPBYTE)_TIFFmalloc(TIFFScanlineSize(tiff1));
buf2 = (LPBYTE)_TIFFmalloc(TIFFScanlineSize(tiff2));
if (diff) {
TIFFSetField(diff, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
TIFFSetField(diff, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
TIFFSetField(diff, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(diff, TIFFTAG_IMAGEWIDTH, imagewidth);
TIFFSetField(diff, TIFFTAG_IMAGELENGTH, imagelength);
TIFFSetField(diff, TIFFTAG_SAMPLESPERPIXEL, 1);
TIFFSetField(diff, TIFFTAG_BITSPERSAMPLE, 8);
buf3 = (LPBYTE)_TIFFmalloc(TIFFScanlineSize(diff));
}
for (row = 0; row < imagelength; row++) {
if (TIFFReadScanline(tiff1, buf1, row, 0) < 0) goto Error;
if (TIFFReadScanline(tiff2, buf2, row, 0) < 0) goto Error;
for (cols = 0; cols < imagewidth; cols++) {
switch (Photometric) {
case PHOTOMETRIC_MINISWHITE:
case PHOTOMETRIC_MINISBLACK:
dE = fabs(buf2[cols] - buf1[cols]);
AddOnePixel(&ColorantStat[0], dE);
AddOnePixel(&EuclideanStat, dE);
break;
case PHOTOMETRIC_RGB:
{
int index = 3 * cols;
dR = fabs(buf2[index+0] - buf1[index+0]);
dG = fabs(buf2[index+1] - buf1[index+1]);
dB = fabs(buf2[index+2] - buf1[index+2]);
dE = sqrt(dR * dR + dG * dG + dB * dB) / sqrt(3.);
}
AddOnePixel(&ColorantStat[0], dR);
AddOnePixel(&ColorantStat[1], dG);
AddOnePixel(&ColorantStat[2], dB);
AddOnePixel(&EuclideanStat, dE);
break;
case PHOTOMETRIC_SEPARATED:
{
int index = 4 * cols;
dC = fabs(buf2[index+0] - buf1[index+0]);
dM = fabs(buf2[index+1] - buf1[index+1]);
dY = fabs(buf2[index+2] - buf1[index+2]);
dK = fabs(buf2[index+3] - buf1[index+3]);
dE = sqrt(dC * dC + dM * dM + dY * dY + dK * dK) / 2.;
}
AddOnePixel(&ColorantStat[0], dC);
AddOnePixel(&ColorantStat[1], dM);
AddOnePixel(&ColorantStat[2], dY);
AddOnePixel(&ColorantStat[3], dK);
AddOnePixel(&EuclideanStat, dE);
break;
default:
FatalError("Unsupported channels: %d", Channels);
return 0;
}
if (xform1 && xform2) {
cmsCIELab Lab1, Lab2;
size_t index1 = cols * PixelSize(dwFormat1);
size_t index2 = cols * PixelSize(dwFormat2);
cmsDoTransform(xform1, &buf1[index1], &Lab1, 1);
cmsDoTransform(xform2, &buf2[index2], &Lab2, 1);
dE = cmsDeltaE(&Lab1, &Lab2);
AddOnePixel(&ColorimetricStat, dE);
}
if (diff) {
buf3[cols] = (BYTE) (dE + 0.5);
}
}
if (diff) {
if (TIFFWriteScanline(diff, buf3, row, 0) < 0) goto Error;
}
}
rc = 1;
Error:
if (hProfile1) cmsCloseProfile(hProfile1);
if (hProfile2) cmsCloseProfile(hProfile2);
if (xform1) cmsDeleteTransform(xform1);
if (xform2) cmsDeleteTransform(xform2);
_TIFFfree(buf1); _TIFFfree(buf2);
if (diff) {
TIFFWriteDirectory(diff);
_TIFFfree(buf3);
}
return rc;
}
static
void AssureShortTagIs(TIFF* tif1, TIFF* tiff2, int tag, int Val, const char* Error)
{
uint16 v1;
if (!TIFFGetField(tif1, tag, &v1)) goto Err;
if (v1 != Val) goto Err;
if (!TIFFGetField(tiff2, tag, &v1)) goto Err;
if (v1 != Val) goto Err;
return;
Err:
FatalError("%s is not proper", Error);
}
static
int CmpShortTag(TIFF* tif1, TIFF* tif2, int tag)
{
uint16 v1, v2;
if (!TIFFGetField(tif1, tag, &v1)) return 0;
if (!TIFFGetField(tif2, tag, &v2)) return 0;
return v1 == v2;
}
static
int CmpLongTag(TIFF* tif1, TIFF* tif2, int tag)
{
uint32 v1, v2;
if (!TIFFGetField(tif1, tag, &v1)) return 0;
if (!TIFFGetField(tif2, tag, &v2)) return 0;
return v1 == v2;
}
static
void EqualShortTag(TIFF* tif1, TIFF* tif2, int tag, const char* Error)
{
if (!CmpShortTag(tif1, tif2, tag))
FatalError("%s is different", Error);
}
static
void EqualLongTag(TIFF* tif1, TIFF* tif2, int tag, const char* Error)
{
if (!CmpLongTag(tif1, tif2, tag))
FatalError("%s is different", Error);
}
static
void AddOneCGATSRow(LCMSHANDLE hIT8, char *Name, LPSTAT st)
{
double Per100 = 100.0 * ((255.0 - Mean(st)) / 255.0);
cmsIT8SetData(hIT8, Name, "SAMPLE_ID", Name);
cmsIT8SetDataDbl(hIT8, Name, "PER100_EQUAL", Per100);
cmsIT8SetDataDbl(hIT8, Name, "MEAN_DE", Mean(st));
cmsIT8SetDataDbl(hIT8, Name, "STDEV_DE", Std(st));
cmsIT8SetDataDbl(hIT8, Name, "MIN_DE", st ->Min);
cmsIT8SetDataDbl(hIT8, Name, "MAX_DE", st ->Peak);
}
static
void CreateCGATS(const char* TiffName1, const char* TiffName2)
{
LCMSHANDLE hIT8 = cmsIT8Alloc();
time_t ltime;
char Buffer[256];
cmsIT8SetSheetType(hIT8, "TIFFDIFF");
sprintf(Buffer, "Differences between %s and %s", TiffName1, TiffName2);
cmsIT8SetComment(hIT8, Buffer);
cmsIT8SetPropertyStr(hIT8, "ORIGINATOR", "TIFFDIFF");
time( &ltime );
strcpy(Buffer, ctime(&ltime));
Buffer[strlen(Buffer)-1] = 0; // Remove the nasty "\n"
cmsIT8SetPropertyStr(hIT8, "CREATED", Buffer);
cmsIT8SetComment(hIT8, " ");
cmsIT8SetPropertyDbl(hIT8, "NUMBER_OF_FIELDS", 6);
cmsIT8SetDataFormat(hIT8, 0, "SAMPLE_ID");
cmsIT8SetDataFormat(hIT8, 1, "PER100_EQUAL");
cmsIT8SetDataFormat(hIT8, 2, "MEAN_DE");
cmsIT8SetDataFormat(hIT8, 3, "STDEV_DE");
cmsIT8SetDataFormat(hIT8, 4, "MIN_DE");
cmsIT8SetDataFormat(hIT8, 5, "MAX_DE");
switch (Channels) {
case 1:
cmsIT8SetPropertyDbl(hIT8, "NUMBER_OF_SETS", 3);
AddOneCGATSRow(hIT8, "GRAY_PLANE", &ColorantStat[0]);
break;
case 3:
cmsIT8SetPropertyDbl(hIT8, "NUMBER_OF_SETS", 5);
AddOneCGATSRow(hIT8, "R_PLANE", &ColorantStat[0]);
AddOneCGATSRow(hIT8, "G_PLANE", &ColorantStat[1]);
AddOneCGATSRow(hIT8, "B_PLANE", &ColorantStat[2]);
break;
case 4:
cmsIT8SetPropertyDbl(hIT8, "NUMBER_OF_SETS", 6);
AddOneCGATSRow(hIT8, "C_PLANE", &ColorantStat[0]);
AddOneCGATSRow(hIT8, "M_PLANE", &ColorantStat[1]);
AddOneCGATSRow(hIT8, "Y_PLANE", &ColorantStat[2]);
AddOneCGATSRow(hIT8, "K_PLANE", &ColorantStat[3]);
break;
default: FatalError("Internal error: Bad ColorSpace");
}
AddOneCGATSRow(hIT8, "EUCLIDEAN", &EuclideanStat);
AddOneCGATSRow(hIT8, "COLORIMETRIC", &ColorimetricStat);
cmsIT8SaveToFile(hIT8, CGATSout);
cmsIT8Free(hIT8);
}
int main(int argc, char* argv[])
{
int i;
Tiff1 = Tiff2 = TiffDiff = NULL;
HandleSwitches(argc, argv);
if ((argc - xoptind) != 2) {
Help();
}
TIFFSetErrorHandler(ConsoleErrorHandler);
TIFFSetWarningHandler(ConsoleWarningHandler);
Tiff1 = TIFFOpen(argv[xoptind], "r");
if (Tiff1 == NULL) FatalError("Unable to open '%s'", argv[xoptind]);
Tiff2 = TIFFOpen(argv[xoptind+1], "r");
if (Tiff2 == NULL) FatalError("Unable to open '%s'", argv[xoptind+1]);
if (TiffDiffFilename) {
TiffDiff = TIFFOpen(TiffDiffFilename, "w");
if (TiffDiff == NULL) FatalError("Unable to create '%s'", TiffDiffFilename);
}
AssureShortTagIs(Tiff1, Tiff2, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG, "Planar Config");
AssureShortTagIs(Tiff1, Tiff2, TIFFTAG_BITSPERSAMPLE, 8, "8 bit per sample");
EqualLongTag(Tiff1, Tiff2, TIFFTAG_IMAGEWIDTH, "Image width");
EqualLongTag(Tiff1, Tiff2, TIFFTAG_IMAGELENGTH, "Image length");
EqualShortTag(Tiff1, Tiff2, TIFFTAG_SAMPLESPERPIXEL, "Samples per pixel");
hLab = cmsCreateLabProfile(NULL);
ClearStatistics(&EuclideanStat);
for (i=0; i < 4; i++)
ClearStatistics(&ColorantStat[i]);
if (!CmpImages(Tiff1, Tiff2, TiffDiff))
FatalError("Error comparing images");
if (CGATSout) {
CreateCGATS(argv[xoptind], argv[xoptind+1]);
}
else {
double Per100 = 100.0 * ((255.0 - Mean(&EuclideanStat)) / 255.0);
printf("Digital counts %g%% equal. mean %g, min %g, max %g, Std %g\n", Per100, Mean(&EuclideanStat),
EuclideanStat.Min,
EuclideanStat.Peak,
Std(&EuclideanStat));
if (ColorimetricStat.n > 0) {
Per100 = 100.0 * ((255.0 - Mean(&ColorimetricStat)) / 255.0);
printf("dE Colorimetric %g%% equal. mean %g, min %g, max %g, Std %g\n", Per100, Mean(&ColorimetricStat),
ColorimetricStat.Min,
ColorimetricStat.Peak,
Std(&ColorimetricStat));
}
}
if (hLab) cmsCloseProfile(hLab);
if (Tiff1) TIFFClose(Tiff1);
if (Tiff2) TIFFClose(Tiff2);
if (TiffDiff) TIFFClose(TiffDiff);
return 0;
}
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