Add MergeTileTransform (#796)

* Add MergeTileTransform
* Update CHANGELOG.md
* Use area to compare equivalence of two Polygons
* Restrict fsspec package version to 2022.11.0 in Python 3.7
* Update fsspec license.txt in 3rd-party.txt
* Update 3rd-party.txt

Signed-off-by: Kim, Vinnam <[email protected]>

Author: vinnamkim

3rd-party.txt

@@ -4926,8 +4926,6 @@ COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 -------------------------------------------------------------
-* Other names and brands may be claimed as the property of others.
--------------------------------------------------------------
 shapely
 
 https://github.com/shapely/shapely
@@ -4961,3 +4959,243 @@ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+-------------------------------------------------------------
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CHANGELOG.md

@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   (<https://github.com/openvinotoolkit/datumaro/pull/791>)
 - Add TileTransform documentation and Jupyter notebook example
   (<https://github.com/openvinotoolkit/datumaro/pull/794>)
+- Add MergeTile transformation
+  (<https://github.com/openvinotoolkit/datumaro/pull/796>)
 
 ### Changed
 - Improved mask_to_rle performance

datumaro/components/annotation.py

@@ -11,6 +11,7 @@
 
 import attr
 import numpy as np
+import shapely.geometry as sg
 from attr import asdict, attrs, field
 from typing_extensions import Literal
 
@@ -641,7 +642,7 @@ def _set_scale(self, value):
         self.scale[:] = np.around(value, COORDINATE_ROUNDING_DIGITS).tolist()
 
 
-@attrs(slots=True, order=False)
+@attrs(slots=True, order=False, eq=False)
 class Polygon(_Shape):
     _type = AnnotationType.polygon
 
@@ -659,6 +660,21 @@ def get_area(self):
         area = mask_utils.area(rle)[0]
         return area
 
+    def __eq__(self, other):
+        if not isinstance(other, __class__):
+            return False
+        if (
+            not Annotation.__eq__(self, other)
+            or self.label != other.label
+            or self.z_order != other.z_order
+        ):
+            return False
+
+        self_polygon = sg.Polygon(self.get_points())
+        other_polygon = sg.Polygon(other.get_points())
+        inter_area = self_polygon.intersection(other_polygon).area
+        return abs(self_polygon.area - inter_area) == 0.0
+
 
 @attrs(slots=True, init=False, order=False)
 class Bbox(_Shape):
@@ -829,12 +845,19 @@ class Caption(Annotation):
     caption: str = field(converter=str)
 
 
-@attrs(slots=True, order=False)
+@attrs(slots=True, order=False, eq=False)
 class _ImageAnnotation(Annotation):
     image: Image = field()
 
+    def __eq__(self, other):
+        if not super().__eq__(other):
+            return False
+        if not isinstance(other, __class__):
+            return False
+        return np.array_equal(self.image, other.image)
 
-@attrs(slots=True, order=False)
+
+@attrs(slots=True, order=False, eq=False)
 class SuperResolutionAnnotation(_ImageAnnotation):
     """
     Represents high resolution images.
@@ -843,7 +866,7 @@ class SuperResolutionAnnotation(_ImageAnnotation):
     _type = AnnotationType.super_resolution_annotation
 
 
-@attrs(slots=True, order=False)
+@attrs(slots=True, order=False, eq=False)
 class DepthAnnotation(_ImageAnnotation):
     """
     Represents depth images.

datumaro/components/media.py

@@ -571,3 +571,25 @@ def save(self, path):
         path = osp.abspath(path)
         os.makedirs(osp.dirname(path), exist_ok=True)
         save_image(path, self.data)
+
+
+ImageWithRoI = Tuple[Image, BboxIntCoords]
+
+
+class MosaicImage(Image):
+    def __init__(self, imgs: List[ImageWithRoI], size: Tuple[int, int]) -> None:
+        def _get_mosaic_img(_) -> np.ndarray:
+            h, w = self.size
+            mosaic_img = np.zeros(shape=(h, w, 3), dtype=np.uint8)
+            for img, roi in imgs:
+                assert isinstance(img, Image), "MosaicImage can only take a list of Images."
+                x, y, w, h = roi
+                mosaic_img[y : y + h, x : x + w] = img.data
+            return mosaic_img
+
+        super().__init__(data=_get_mosaic_img, path=None, ext=None, size=size)
+
+    def save(self, path):
+        path = osp.abspath(path)
+        os.makedirs(osp.dirname(path), exist_ok=True)
+        save_image(path, self.data)