openISP_cpp

Open Image Signal Processor You can found the description in Practice record

Introduction

As the name implies, openISP_cpp is a C++ implementation of the openISP project.

Here is the running time in my i5-12500H machine with the 4032x3024 input Bayer array:

Module	openISP(1920x1080)	cpp(4032x3024)
DPC	20.57s	17.8s
BLC	11.75s	0.38s
AAF	16.87s	0.52s
AWB	7.54s	0.41s
CNF	73.99s	-----
BNF	------	1.16s
CFA	40.71s	0.05s
CCM	56.85s	0.93s
GAC	25.71s	0.61s
CSC	60.32s	0.34s
NLM	1600.95s	12.55s
BNF	801.24s	8.18s
EEH	68.60s	1.65s
FCS	25.07s	-----
HSC	56.34s	-----
End-to-end pipeline	2894.41s	47.99s

Usage

1. Clone this repo
2. Compile (I use cmake to compile the code with MSYS2, MinGW64, LibRaw and OpenCV)
3. Adjust the path and parameters of the code, than you can do the pipeline

Note:

• I used my iPhone 11 to get the raw dng file. You can try to get the raw data in dng format with your own device. It is very simple on Android phones. On an iPhone you may need Pro device or apps like Procam or Halide
• To process the dng file, libraw is used to get the data

Thanks to

libraw: Library for reading and processing of RAW digicam images

openISP: Open Image Signal Processor (openISP)

fast-openISP: Fast Open Image Signal Processor (fast-openISP)