doc:appunti:hardware:sjcam-8pro-ambarella-firmware-modding
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doc:appunti:hardware:sjcam-8pro-ambarella-firmware-modding [2022/06/09 17:57] – [What gamma curves are applied on each video mode] niccolo | doc:appunti:hardware:sjcam-8pro-ambarella-firmware-modding [2022/06/15 16:47] (current) – [White balance presets] niccolo | ||
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^ Group ^ Contained in file ^ Used for video modes ^ | ^ Group ^ Contained in file ^ Used for video modes ^ | ||
- | | 4K30/ | + | | 4K30/ |
- | | 4K60/ | + | | 4K60/ |
- | | FHD60/ | + | | FHD60/ |
- | | FHD120/ | + | | FHD120/ |
- | | 720@240/ | + | | 720@240/ |
- | | 4K30??/* | + | | 4K30Gyro/* | adj_video_default_05_Imx377 |
| ||| | | ||| | ||
^ Group ^ Contained in file ^ Used for photo mode/ | ^ Group ^ Contained in file ^ Used for photo mode/ | ||
Line 207: | Line 207: | ||
| Photo-Hi-ISO/ | | Photo-Hi-ISO/ | ||
- | It is not clear when are used **adj_video_default_00_Imx377** and **adj_video_default_05_Imx377**. FIXME Need to check various 4K30 modes... | + | It seems rather crazy, but the tables contained into **adj_video_default_05_Imx377** |
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{{.: | {{.: | ||
+ | |||
+ | FIXME: It is not know how this table works. It seems that labels are wrong: **YA_min** and **YB_min** are repeated twice, may be they are **YA_max** and **YB_max**. | ||
+ | |||
+ | White balance is probably applied as a series of linear transformations to the **four raw values** captured by te **[[wp> | ||
+ | |||
+ | ^ Gr | Green on Red | | ||
+ | ^ Gb | Green on Blue | | ||
+ | ^ Ya | Y channel value of target image? | ||
+ | ^ Yb | Y channel value of reference image? | ||
===== 3D LUT tables ===== | ===== 3D LUT tables ===== |
doc/appunti/hardware/sjcam-8pro-ambarella-firmware-modding.1654790228.txt.gz · Last modified: 2022/06/09 17:57 by niccolo