EasyColor::Format444To422
Converts a YUV 4:4:4 image to a YUV 4:2:2 image using filtering
Namespace: Euresys::Open_eVision
Parameters
sourceImage
Pointer to the input image/ROI.
destinationImage
Pointer to the output image/ROI, stored using the 16 bits per pixel format.
yFirst
Flag indicating if the format is YUYVYUYV (true) or UYVYUYVY (false).
Remarks
In the YUV system, it has been established that sub-sampling the chroma components does not degrade the visual image quality. The 4:4:4 format uses three bytes of information by pixel. The 4:2:2 format is such that only the U and V chroma of the even pixels are kept and they are stored with the even and odd luma, as follows:
Thus, only two bytes per pixel are required.
Y~[even]~ U~[even]~ Y~[odd]~ V~[even]~
EasyColor.Format444To422
Converts a YUV 4:4:4 image to a YUV 4:2:2 image using filtering
Namespace: Euresys.Open_eVision
Parameters
sourceImage
Pointer to the input image/ROI.
destinationImage
Pointer to the output image/ROI, stored using the 16 bits per pixel format.
yFirst
Flag indicating if the format is YUYVYUYV (true) or UYVYUYVY (false).
Remarks
In the YUV system, it has been established that sub-sampling the chroma components does not degrade the visual image quality. The 4:4:4 format uses three bytes of information by pixel. The 4:2:2 format is such that only the U and V chroma of the even pixels are kept and they are stored with the even and odd luma, as follows:
Thus, only two bytes per pixel are required.
Y~[even]~ U~[even]~ Y~[odd]~ V~[even]~
EasyColor.Format444To422
Converts a YUV 4:4:4 image to a YUV 4:2:2 image using filtering
Module: open_evision
[Python]
@staticmethod
Format444To422(
sourceImage: EROIC24
destinationImage: EROIBW16
yFirst: bool
) -> None
Parameters
sourceImage
Pointer to the input image/ROI.
destinationImage
Pointer to the output image/ROI, stored using the 16 bits per pixel format.
yFirst
Flag indicating if the format is YUYVYUYV (true) or UYVYUYVY (false).
Remarks
In the YUV system, it has been established that sub-sampling the chroma components does not degrade the visual image quality. The 4:4:4 format uses three bytes of information by pixel. The 4:2:2 format is such that only the U and V chroma of the even pixels are kept and they are stored with the even and odd luma, as follows:
Thus, only two bytes per pixel are required.
Y~[even]~ U~[even]~ Y~[odd]~ V~[even]~