vImageCVImageFormat.ChromaSiting.topLeft The chrominance sample is co-sited with the top-left luminance sample. Declarationcase topLeft See AlsoChrominance siting constantsvImageCVImageFormat.ChromaSiting.topvImageCVImageFormat.ChromaSiting.bottomvImageCVImageFormat.ChromaSiting.bottomLeftvImageCVImageFormat.ChromaSiting.leftvImageCVImageFormat.ChromaSiting.centervImageCVImageFormat.ChromaSiting.dv420