| 488 |
|
histot += tms->histo[i]; |
| 489 |
|
sum += (double)(j -= HISTEP) * tms->histo[i]; |
| 490 |
|
} |
| 491 |
– |
threshold = histot*0.002 + .5; |
| 491 |
|
if (!histot) |
| 492 |
|
returnErr(TM_E_TMFAIL); |
| 493 |
+ |
threshold = histot*0.025 + 1.; |
| 494 |
|
Lwavg = tmLuminance( (double)sum / histot ); |
| 495 |
|
/* use linear tone mapping? */ |
| 496 |
|
if (tms->flags & TM_F_LINEAR || threshold < 4 || |
| 534 |
|
free(cumf); |
| 535 |
|
goto linearmap; |
| 536 |
|
} |
| 537 |
< |
} while (trimmings > threshold); |
| 537 |
> |
threshold = 0.025*histot + 1.; |
| 538 |
> |
|
| 539 |
> |
} while ((threshold > 4) & (trimmings > threshold)); |
| 540 |
|
/* allocate space for mapping */ |
| 541 |
|
if (!tmNewMap(tms)) |
| 542 |
|
returnErr(TM_E_NOMEM); |
