#227 Crash when auto anti-ghosting option seelected

[Dariusz Rozwadowski]

Crash when auto anti-ghosting option seelected. The crash dump:

luminance-hdr.exe!blendGradients$omp$1() Line 527 C++
vcomp140.dll!_vcomp::fork_helper(void (...) * funclet, int arg_count, char * argptr) Line 477 C++
vcomp140.dll!_vcomp::fork_helper_wrapper(void (...) * funclet, int arg_count, char * argptr) Line 325 C++
vcomp140.dll!_vcomp::ParallelRegion::HandlerThreadFunc(void * context, unsigned long index) Line 306 C++
vcomp140.dll!_vcomp::PersistentThreadFunc(void * pvContext) Line 240 C++

Platform: Windows 10,
Version: Luminance HDR 2.5.1