ConvertBits(8) gives a big difference compared to z_ConvertFormat(pixel_type="YV12") and DitherPost(mode=-1). Is that an expected behavior?
Code:
ImageSource()
Interleave(ShowRed("y8"), ShowGreen("y8"), ShowBlue("y8")).Dither_convert_8_to_16()
Dither_convert_rgb_to_yuv (
\ SelectEvery (3, 0), SelectEvery (3, 1), SelectEvery (3, 2),
\ matrix="709", noring=true, output="YV12", tv_range=true, chromak="spline36",
\ lsb=false, mode=6)
z_ConvertFormat(width/2,height/2,pixel_type="yuv420p16", resample_filter="spline36")
s=last
ConvertToStacked()
DitherPost(mode=-1)
a=last
s
z_ConvertFormat(pixel_type="yv12")
Compare(a, channels="yuv")
Code:
ImageSource()
Interleave(ShowRed("y8"), ShowGreen("y8"), ShowBlue("y8")).Dither_convert_8_to_16()
Dither_convert_rgb_to_yuv (
\ SelectEvery (3, 0), SelectEvery (3, 1), SelectEvery (3, 2),
\ matrix="709", noring=true, output="YV12", tv_range=true, chromak="spline36",
\ lsb=false, mode=6)
z_ConvertFormat(width/2,height/2,pixel_type="yuv420p16", resample_filter="spline36")
s=last
ConvertToStacked()
DitherPost(mode=-1)
a=last
s
ConvertBits(8)
Compare(a, channels="yuv")
Code:
ImageSource()
Interleave(ShowRed("y8"), ShowGreen("y8"), ShowBlue("y8")).Dither_convert_8_to_16()
Dither_convert_rgb_to_yuv (
\ SelectEvery (3, 0), SelectEvery (3, 1), SelectEvery (3, 2),
\ matrix="709", noring=true, output="YV12", tv_range=true, chromak="spline36",
\ lsb=false, mode=6)
z_ConvertFormat(width/2,height/2,pixel_type="yuv420p16", resample_filter="spline36")
s=last
ConvertBits(8)
a=last
s
z_ConvertFormat(pixel_type="yv12")
Compare(a, channels="yuv")
Image source.