Add crop filter

cartuli/filters.py

@@ -5,7 +5,7 @@
 
 from .card import CardImage
 from .measure import mm, from_str
-from .processing import inpaint, straighten
+from .processing import inpaint, straighten, crop
 
 
 class Filter(ABC):
@@ -75,6 +75,22 @@ def apply(self, card_image: CardImage) -> CardImage:
         )
 
 
+@dataclass(frozen=True)
+class CropFilter(Filter):
+    size: float = 3*mm
+
+    def apply(self, card_image: CardImage) -> CardImage:
+        logger = logging.getLogger('CropFilter')
+        logger.debug(f'Applying to {card_image}')
+
+        return CardImage(
+            crop(card_image.image, size=card_image.resolution * self.size),
+            size=card_image.size,
+            bleed=card_image.bleed,
+            name=card_image.name
+        )
+
+
 def snake_to_class(snake_case_str):
     words = snake_case_str.split('_')
     camel_case_str = ''.join(word.capitalize() for word in words)

cartuli/processing.py

@@ -127,3 +127,15 @@ def straighten(image: Image.Image, /, outliers_iqr_scale: float = 0.01) -> Image
     # TUNE: Maybe new content generated after rotation should be inpainted
 
     return rotated_image
+
+
+def crop(image: Image.Image, /, size: Size | float  | int = 5) -> Image.Image:
+    logger = logging.getLogger('cartuli.processing')
+
+    logger.debug(f"Start {image} image crop", extra={'trace': image})
+    crop_size = _to_size(size)
+    crop_box = (crop_size.width, crop_size.height, image.width - crop_size.width, image.height - crop_size.height)
+    crop_image = image.crop(crop_box)
+    logger.debug(f"Crop {image}", extra={'trace': crop_image})
+
+    return crop_image

requirements.txt

@@ -2,5 +2,4 @@ reportlab==4.*
 opencv-python==4.*
 pillow==10.*
 pyyaml==6.*
-nbformat==5.*
-carpeta==0.1.0a0
+carpeta==0.1.0a0