jedypod / debayer Goto Github PK

Hello,
could you please add the license ?
I am a supporter of free and opens source software :)

thank you !

Andrea

when run debayer dng -o exr，output error message'Error: could not locate oiiotool'.How do I install oiiotool dependency?

I am confused about the color transform matrix.
In debayer file line179：
mtx_XYZ_to_ACEScg = '1.65885437,-0.31185693,-0.24315603,-0.66228336,1.61220002,0.01585913,0.01148057,-0.00923633,0.91668653'

This has slight differences with the aces offical transform matrix:
R_out = 1.6410233797 * R_in + -0.3248032942 * G_in + -0.2364246952 * B_in;
G_out = -0.6636628587 * R_in + 1.6153315917 * G_in + 0.0167563477 * B_in;
B_out = 0.0117218943 * R_in + -0.0082844420 * G_in + 0.9883948585 * B_in;

In comments, it says "D65-aligned XYZ to ACEScg with CAT02 CAT. Works with dcraw"
What is the meaning of D65-aligned XYZ? Is the XYZ output of dcraw not standard?

I am trying to read raw image into ACES Ap0 color space. I find in libraw color matrix, there is a comment:
Coffin's values (commented out) are not adapted from ACES "D60-like" WP to D65
I did some tests with the libraw color matrix:

1. srgb->xyz(use LibRaw_constants::xyz_rgb)->aces(use offical aces xyz2Ap0)
2. srgb->aces(use LibRaw_constants::aces_rgb)
3. srgb->aces(use Coffin's values which are commented out)
   the results of 1）and 3）are same, which are different from 2).

So, is the result of libraw xyz standard? At least I found the LibRaw_constants::xyz_rgb matrix is standard matrix for sRGB->XYZ.

Thanks for your reply!

Hi,

I really want to try this tool. I finally figured out how to get everything installed on my Mac using brew and pip. I get Debayer command not found when I try to run it in terminal. Not sure where to go from here. Any help is appreciated.

请问使用debayer需要安装什么，比如设置DEBAYER_ENGINE = 'dc'，需要安装哪些？如何安装？
libraw安装编译之后并没有起作用，oiio安装不了

Ok so first a few "fixes"for the readme.md
on MacOS BigSur I have to install pip using get-pip.py it does not work via homebrew:

brew install openimageio dcraw python exiftool

curl -O https://bootstrap.pypa.io/pip/2.7/get-pip.py

python get-pip.py

pip install PyYAML

so far so good if I launch ./debayer I get the help printout, but when I run ./debayer input_paths /Volumes/raid/HDri/testJEDY

I end up with this:

Traceback (most recent call last):
  File "./debayer", line 709, in <module>
    debayer = Debayer()
  File "./debayer", line 61, in __init__
    self.success = self.validate()
  File "./debayer", line 374, in validate
    if not os.path.exists(self.ocioconfig):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/genericpath.py", line 26, in exists
    os.stat(path)
TypeError: coercing to Unicode: need string or buffer, NoneType found

Any Idea?