r2508 RGB->Y8
[incorrect]
r2508 RGB->YV24->Y8 [correct]
2.6MT RGB->Y8 [correct]
OS: Win10 CU
CPU：i7-4702MQ(Haswell)
Code:
function LumaBlock(int n){
return BlankClip(width=60,height=400,pixel_type="RGB32",color=n*(65536+256+1)).Subtitle(String(n),align=2).KillAudio()
}
StackHorizontal( LumaBlock(0), LumaBlock(8), LumaBlock(16), LumaBlock(32), LumaBlock(64), LumaBlock(96), LumaBlock(128), \
LumaBlock(160), LumaBlock(192), LumaBlock(224), LumaBlock(235), LumaBlock(245), LumaBlock(255) )
# Avisynth+ r2508 needs ConvertToYV24()
# ConvertToYV24()
ConvertToY8()
Subtitle(VersionString,align=9)
# Show Histogram
ConvertToYV24()
Histogram("levels")
Subtitle("r2508 RGB32------->Y8",align=7)
#Subtitle("r2508 RGB32->YV24->Y8",align=7)
#Subtitle("2.6MT RGB32------->Y8",align=7)
ConvertToRGB()