SUB2r

gen5-gamma - [RGB UVC Gamma Adjustment]

Igor Yefmov (yephick@undisclosed.example.com) — 2026-01-27T05:40:20+00:00

RGB UVC Gamma Adjustment At this stage of the imaging pipeline the pixel data is represented in full-range RGB color space with 12-bit precision per component, as produced by the CMX stage (gen5-cmx). The purpose of this block is to apply UVC gamma adjustment\[ R12 \in [0..4095]\\ G12 \in [0..4095]\\ B12 \in [0..4095] \]\[ R12^{\gamma} \in [0..4095]\\ G12^{\gamma} \in [0..4095]\\ B12^{\gamma} \in [0..4095] \]\(R12\)\(G12\)\(B12\)\[ R12^{\gamma} = LUT[R12]\\ G12^{\gamma} = LUT[G12]\\ B12^…

screenshot_2026-01-27_063531.png - created

Igor Yefmov (yephick@undisclosed.example.com) — 2026-01-27T05:36:48+00:00

gen5-hue-rotation - created

Igor Yefmov (yephick@undisclosed.example.com) — 2026-01-14T00:11:35+00:00

UVC Hue rotation (YCbCr 4:4:4) This block applies UVC Hue adjustment by rotating the chroma vector \((C_b, C_r)\) around the neutral point, while leaving luma \(Y\) unchanged. This block does not clamp the output values. Chroma values outside the nominal 12-bit full-range are allowed and are expected to be handled later in the pipeline.\[ Y12 \in [0..4095]\\ C_b12 \in [0..4095]\text{, neutral at }2048\\ C_r12 \in [0..4095]\text{, neutral at }2048 \]\(H\)\(\times 100\)\[ H \in [-18000..+1800…

gen5-contrast - created

Igor Yefmov (yephick@undisclosed.example.com) — 2026-01-13T23:53:07+00:00

YUV 4:4:4 UVC Contrast At this stage of the imaging pipeline the pixel data is represented in full-range YCbCr 4:4:4 color space with 12-bit precision per component. The purpose of this block is to apply UVC Contrast adjustment by modifying the luma component relative to a neutral midpoint, while preserving chroma.\[ Y12 \in [0..4095]\\ C_b12 \in [0..4095]\text{, neutral at }2048\\ C_r12 \in [0..4095]\text{, neutral at }2048 \]\[ Y12^{\text{contrast}} \in [0..4095]\\ C_b12^{\text{contrast…

gen5-brightness - created

Igor Yefmov (yephick@undisclosed.example.com) — 2026-01-13T23:47:45+00:00

YUV 4:4:4 UVC Brightness At this stage of the imaging pipeline the pixel data is represented in full-range YCbCr 4:4:4 color space with 12-bit precision per component. The purpose of this block is to apply UVC Brightness adjustment to the image by modifying the luma component while preserving chroma.\[ Y12 \in [0..4095]\\ C_b12 \in [0..4095]\text{, neutral at }2048\\ C_r12 \in [0..4095]\text{, neutral at }2048 \]\[ Y12^{\text{bright}} \in [0..4095]\\ C_b12^{\text{bright}} = C_b12\\ C_r12…

gen5-rgb-to-yuv - created

Igor Yefmov (yephick@undisclosed.example.com) — 2026-01-13T23:24:05+00:00

RGB to YCbCr 4:4:4 Pixels are coming out of de-bayer as 12-bit per channel RGB triplets (36 bits total per pixel). For now what we get from the sensor is assumed to be linear-light data (so we have to apply a transform function first to be aligned with the \(RGB\)\([0..4095]\)\[ Y12 \in [0..4095]\\ C_b12 \in [0..4095]\text{, neutral at }2048\\ C_r12 \in [0..4095]\text{, neutral at }2048 \]\(RGB\)\(L\)\(R'G'B'\)\(E\)\[ E = \begin{cases} 4.5 \times L & \quad \text{if } L < 0.018\\ 1.099 …

start - [Gen5 implementation specs]

Igor Yefmov (yephick@undisclosed.example.com) — 2026-01-13T21:25:18+00:00

Image signal processing (ISP) Auto-functions * White balance, a.k.a. “color normalization” * Automatic white balance or AWB * Automatic exposure control UVC adjustments * Brightness * Contrast * Hue rotation * Vibrancy or “smart saturation” * Sharpness * Gamma Color grading Scopes * Histograms * Parade Adjustments * Hue vs. Hue * Hue vs. Saturation * Hue vs. Luma *

fpga_map_gen5 - [FPGA operation mode]

Igor Yefmov (yephick@undisclosed.example.com) — 2025-02-25T03:11:04+00:00

FPGA I²C bridge (registers' map) The following tables provide information on how to access the camera's functionality for an FPGA I²C bridge. Intel-based FPGA utilizes an Avalon interface bus to facilitate access to FPGA's “registers”. We have reserved addresses beginning with \(0x5000'0000\)\[ C_{out} = [(C_{in} - {black \space level})] \times Mult + Add \\ \text{where the result of} \space [(C_{in} - {black \space level})] \space \text{is 0 if negative} \]\([0..4095]\)\(1200\)\(1200\)\(1200\…

sub2r-driver-win-config-2.png - removed

Igor Yefmov (yephick@undisclosed.example.com) — 2021-06-25T23:02:33+00:00

sub2r-driver-win-config-1.png - removed

Igor Yefmov (yephick@undisclosed.example.com) — 2021-06-25T23:02:30+00:00

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Igor Yefmov (yephick@undisclosed.example.com) — 2021-06-25T23:02:28+00:00

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Igor Yefmov (yephick@undisclosed.example.com) — 2021-06-25T23:02:25+00:00

sub2r-driver-install-5.png - removed

Igor Yefmov (yephick@undisclosed.example.com) — 2021-06-25T23:02:22+00:00

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Igor Yefmov (yephick@undisclosed.example.com) — 2021-06-25T23:02:19+00:00

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Igor Yefmov (yephick@undisclosed.example.com) — 2021-06-25T23:02:16+00:00

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Igor Yefmov (yephick@undisclosed.example.com) — 2021-06-25T23:02:13+00:00

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Igor Yefmov (yephick@undisclosed.example.com) — 2021-06-25T23:02:10+00:00

sub2r-driver-download.png - removed

Igor Yefmov (yephick@undisclosed.example.com) — 2021-06-25T23:02:06+00:00

color_correction_sample.jpg - created

Igor Yefmov (yephick@undisclosed.example.com) — 2020-12-22T04:34:39+00:00

ov10823-bayer.png

Igor Yefmov (yephick@undisclosed.example.com) — 2020-12-17T22:21:57+00:00