diff --git a/pdm.lock b/pdm.lock
index d08a4a9..03b8e85 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -2,10 +2,10 @@
 # It is not intended for manual editing.
 
 [metadata]
-groups = ["default", "dev", "lint", "nb", "tests"]
+groups = ["default", "dev", "lint", "nb", "open-cv", "tests"]
 strategy = ["inherit_metadata"]
 lock_version = "4.5.0"
-content_hash = "sha256:326ca1095302e816f56644c4ba0929ea12b930348375c98eba139701e0388de6"
+content_hash = "sha256:dd33ca3d0a561a8f2634539cc333c0456a89a60141b902cb78408bf546abbc85"
 
 [[metadata.targets]]
 requires_python = ">=3.11,<3.15"
@@ -1547,7 +1547,7 @@ name = "numpy"
 version = "2.4.2"
 requires_python = ">=3.11"
 summary = "Fundamental package for array computing in Python"
-groups = ["default"]
+groups = ["default", "open-cv"]
 files = [
     {file = "numpy-2.4.2-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:e7e88598032542bd49af7c4747541422884219056c268823ef6e5e89851c8825"},
     {file = "numpy-2.4.2-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:7edc794af8b36ca37ef5fcb5e0d128c7e0595c7b96a2318d1badb6fcd8ee86b1"},
@@ -1628,7 +1628,7 @@ name = "opencv-python"
 version = "4.13.0.92"
 requires_python = ">=3.6"
 summary = "Wrapper package for OpenCV python bindings."
-groups = ["default"]
+groups = ["open-cv"]
 dependencies = [
     "numpy<2.0; python_version < \"3.9\"",
     "numpy>=2; python_version >= \"3.9\"",
diff --git a/pyproject.toml b/pyproject.toml
index df8c814..c8794d5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,11 +6,15 @@ authors = [
     {name = "Susanne Franke", email = "s.franke@d-opt.de"},
     {name = "Florian Förster", email = "f.foerster@d-opt.com"},
 ]
-dependencies = ["PySide6>=6.10.2", "numpy>=2.4.2", "pillow>=12.1.1", "opencv-python>=4.13.0.92", "pyvips[binary]>=3.1.1"]
+dependencies = ["PySide6>=6.10.2", "numpy>=2.4.2", "pillow>=12.1.1", "pyvips[binary]>=3.1.1"]
 requires-python = "<3.15,>=3.11"
 readme = "README.md"
 license = {text = "LicenseRef-Proprietary"}
 
+[project.optional-dependencies]
+open-cv = [
+    "opencv-python>=4.13.0.92",
+]
 [build-system]
 requires = ["pdm-backend"]
 build-backend = "pdm.backend"