[PATCH v2 11/25] libtuning: Reactivate macbeth locator

[Stefan Klug]

Hi Laurent,

On Sat, Jun 29, 2024 at 02:09:46AM +0300, Laurent Pinchart wrote:
> Hi Stefan,
> 
> Thank you for the patch.
> 
> On Fri, Jun 28, 2024 at 12:47:04PM +0200, Stefan Klug wrote:
> > Add the missing pieces and store the result inside the image object.
> > 
> > Signed-off-by: Stefan Klug <stefan.klug at ideasonboard.com>
> > ---
> >  utils/tuning/libtuning/image.py   |  1 +
> >  utils/tuning/libtuning/macbeth.py | 13 ++++++++++---
> >  utils/tuning/libtuning/utils.py   |  5 +++--
> >  3 files changed, 14 insertions(+), 5 deletions(-)
> > 
> > diff --git a/utils/tuning/libtuning/image.py b/utils/tuning/libtuning/image.py
> > index 2c4d774f11e2..c8911a0ff125 100644
> > --- a/utils/tuning/libtuning/image.py
> > +++ b/utils/tuning/libtuning/image.py
> > @@ -24,6 +24,7 @@ class Image:
> >          self.lsc_only = False
> >          self.color = -1
> >          self.lux = -1
> > +        self.macbeth = None
> >  
> >          try:
> >              self._load_metadata_exif()
> > diff --git a/utils/tuning/libtuning/macbeth.py b/utils/tuning/libtuning/macbeth.py
> > index 28051de8155c..4a2006b013dc 100644
> > --- a/utils/tuning/libtuning/macbeth.py
> > +++ b/utils/tuning/libtuning/macbeth.py
> > @@ -17,12 +17,15 @@ import logging
> >  from sklearn import cluster as cluster
> >  
> >  from .ctt_ransac import get_square_verts, get_square_centres
> > -
> > -from libtuning.image import Image
> > +from .image import Image
> >  
> >  logger = logging.getLogger(__name__)
> >  
> >  
> > +class MacbethError(Exception):
> > +    pass
> > +
> > +
> >  # Reshape image to fixed width without distorting returns image and scale
> >  # factor
> >  def reshape(img, width):
> > @@ -377,7 +380,9 @@ def get_macbeth_chart(img, ref_data):
> >  
> >      # Catch macbeth errors and continue with code
> >      except MacbethError as error:
> > -        logger.warning(error)
> > +        # \todo: This happens so many times in a normal run, that it shadows
> > +        # all the relevant output
> > +        # logger.warning(error)
> >          return (0, None, None, False)
> >  
> >  
> > @@ -527,4 +532,6 @@ def locate_macbeth(image: Image, config: dict):
> >          logger.warning(f'Macbeth patches have saturated in {image.path.name}')
> >          return None
> >  
> > +    image.macbeth = macbeth
> > +
> >      return macbeth
> > diff --git a/utils/tuning/libtuning/utils.py b/utils/tuning/libtuning/utils.py
> > index 00cf5a57512f..1e7991e84a70 100644
> > --- a/utils/tuning/libtuning/utils.py
> > +++ b/utils/tuning/libtuning/utils.py
> > @@ -17,7 +17,7 @@ import logging
> >  
> >  import libtuning as lt
> >  from libtuning.image import Image
> > -from libtuning.macbeth import locate_macbeth
> > +from .macbeth import locate_macbeth
> >  
> >  logger = logging.getLogger(__name__)
> >  
> > @@ -92,6 +92,7 @@ def load_images(input_dir: str, config: dict, load_nonlsc: bool, load_lsc: bool)
> >      images = []
> >      for f in files:
> >          color, lux, lsc_only = _parse_image_filename(f)
> > +        logger.info(f'Process image {f.name} (color={color}, lux={lux}, lsc_only={lsc_only})')
> 
> Should this go after the color check ?

No, I also wanted to have an output on the alsc images.

> 
> >          if color is None:
> 
> And should an error be reported here ?

Ah interesting. I added a warning there.

> 
> This hunk seems to be a candidate for a separate patch.

Yes, you are right. It has nothing to do with the enabling mac beth. I
split it out.

Regards,
Stefan

> 
> >              continue
> >  
> > @@ -127,7 +128,7 @@ def load_images(input_dir: str, config: dict, load_nonlsc: bool, load_lsc: bool)
> >              continue
> >  
> >          # Handle macbeth
> > -        macbeth = locate_macbeth(config)
> > +        macbeth = locate_macbeth(image, config)
> >          if macbeth is None:
> >              continue
> >  
> 
> -- 
> Regards,
> 
> Laurent Pinchart