Input Interface video stream (clk, rst, vsync, href, pixel_in)

Video Control Module

Sync Control (vsync, href)

Pixel Valid Generation

Data Forwarding

Line Buffer Module

3x3 Window Generation

Memory Management

Window Valid Control

Convolution Module

Edge Enhancement Kernel

8 Center, -1 surround

Sum Accumulator

Dehazing Module

Dark Channel 3x3 Window

↓

LUT, min(R, G, B)

↓

Output 8 bit

Transmission Estimation (3x3 RGB Window)

↓

Mux

↓

Transmission Map (Min Array)

↓

t = 255 - 0.95 ×dark

Radiance Recovery

↓

RGB565 input

↓

LUT

↓

J= (I-A)/t+A

↓

Grayscale Output

Output Buffer Module

FIFO Buffer (1024 deep)

Flow Control Logic

Output Timing Control

Final Dehazed Output (valid_out, [7:0] pixel_out)

pixel_valid

pixel_out[7:0]

window_valid

[71:0] window_3x3

[15:0] pixel_out

valid_out