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Media Image Camera PixelFormat #119

Open junxnone opened 2 years ago

junxnone commented 2 years ago

像素格式

Reference

Brief

Pixel Format - Camera 输出图像的格式
- Packed(Pixel-Order)/Planar
- Monochromatic Formats - 单色灰度/Color Formats - 彩色
YUV

Packed

Packed - Pixel-Order

Format	Channel Values Order
RGB	`R0 G0 B0 R1 G1 B1 R2 G2 B2`
RGBA	`R0 G0 B0 A0 R1 G1 B1 A1`
BGR	`B0 G0 R0 A0 B1 G1 R1 A1`
YUV	`Y0 U0 V0 Y1 U1 V1 Y2 U2 V2`
YUV 422	`Y0 U0 V0 A0 Y1 U1 V1 A1`
YCbCr	`Y0 Cb0 Cr0 Y1 Cb1 Cr1`
YCbCr 422	`Y0 Cb0 Y1 Cr0 Y2 Cb1 Y3 Cr1`

Planar

按平面排列像素, 几个平面合成一个 Pixel

Images	Plane size & Layout
3-palnes Images
2-palnes Images

常见相关格式

大类	小类
Mono	8/8s/10/10Packed/12/12Packed/16
Bayer	GR8/RG8/GB8/BG8/GR10/RG10/GB10/BG10/GR12/RG12/GB12/BG12
RGB/BGR	8/a8/10/12/10v1Packed/10p32
YUV	422/411 - 8/
YCbcr	422/411 - 8

YUV vs YCbCr ?
- YUV - 用于模拟信号
- YCbCr - 用于数字信号 - 方便压缩？？