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root/radiance/ray/src/common/tonemap.c
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Comparing ray/src/common/tonemap.c (file contents):
Revision 3.49 by greg, Mon Apr 12 22:16:02 2021 UTC vs.
Revision 3.50 by greg, Tue Apr 13 02:42:31 2021 UTC

# Line 490 | Line 490 | double Ldmax
490          }
491          if (!histot)
492                  returnErr(TM_E_TMFAIL);
493 <        threshold = histot*0.025 + 1.;
493 >        threshold = histot/40 + 1;
494          Lwavg = tmLuminance( (double)sum / histot );
495                                          /* use linear tone mapping? */
496          if (tms->flags & TM_F_LINEAR || threshold < 4 ||
# Line 534 | Line 534 | double Ldmax
534                          free(cumf);
535                          goto linearmap;
536                  }
537 <                threshold = 0.025*histot + 1.;
538 <
539 <        } while ((threshold > 4) & (trimmings > threshold));
537 >        } while (40*trimmings > histot);
538                                          /* allocate space for mapping */
539          if (!tmNewMap(tms))
540                  returnErr(TM_E_NOMEM);

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