diff --git a/.gitignore b/.gitignore
index b4ef2fc..4a6f13e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ dist
 pytest_cache
 src/osipi/__pycache__
 tests/__pycache__
+.coverage
diff --git a/junit/test-results.xml b/junit/test-results.xml
new file mode 100644
index 0000000..f12a6c0
--- /dev/null
+++ b/junit/test-results.xml
@@ -0,0 +1 @@
+<?xml version="1.0" encoding="utf-8"?><testsuites><testsuite name="pytest" errors="0" failures="0" skipped="0" tests="5" time="23.487" timestamp="2024-06-11T05:21:47.507973" hostname="LAPTOP-QIKPH67N"><testcase classname="tests.test_aif" name="test_aif_parker" time="0.002" /><testcase classname="tests.test_aif" name="test_aif_georgiou" time="0.001" /><testcase classname="tests.test_aif" name="test_aif_weinmann" time="0.001" /><testcase classname="tests.test_tissue" name="test_tissue_tofts" time="11.546" /><testcase classname="tests.test_tissue" name="test_tissue_extended_tofts" time="11.402" /></testsuite></testsuites>
diff --git a/poetry.lock b/poetry.lock
index 2f932d5..7077283 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -224,6 +224,70 @@ mypy = ["contourpy[bokeh,docs]", "docutils-stubs", "mypy (==1.8.0)", "types-Pill
 test = ["Pillow", "contourpy[test-no-images]", "matplotlib"]
 test-no-images = ["pytest", "pytest-cov", "pytest-xdist", "wurlitzer"]
 
+[[package]]
+name = "coverage"
+version = "7.5.3"
+description = "Code coverage measurement for Python"
+optional = false
+python-versions = ">=3.8"
+files = [
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+    {file = "coverage-7.5.3-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:aea7da970f1feccf48be7335f8b2ca64baf9b589d79e05b9397a06696ce1a1ec"},
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+    {file = "coverage-7.5.3-cp39-cp39-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:2e079c9ec772fedbade9d7ebc36202a1d9ef7291bc9b3a024ca395c4d52853d7"},
+    {file = "coverage-7.5.3-cp39-cp39-musllinux_1_1_aarch64.whl", hash = "sha256:bde997cac85fcac227b27d4fb2c7608a2c5f6558469b0eb704c5726ae49e1c52"},
+    {file = "coverage-7.5.3-cp39-cp39-musllinux_1_1_i686.whl", hash = "sha256:990fb20b32990b2ce2c5f974c3e738c9358b2735bc05075d50a6f36721b8f303"},
+    {file = "coverage-7.5.3-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:3d5a67f0da401e105753d474369ab034c7bae51a4c31c77d94030d59e41df5bd"},
+    {file = "coverage-7.5.3-cp39-cp39-win32.whl", hash = "sha256:e08c470c2eb01977d221fd87495b44867a56d4d594f43739a8028f8646a51e0d"},
+    {file = "coverage-7.5.3-cp39-cp39-win_amd64.whl", hash = "sha256:1d2a830ade66d3563bb61d1e3c77c8def97b30ed91e166c67d0632c018f380f0"},
+    {file = "coverage-7.5.3-pp38.pp39.pp310-none-any.whl", hash = "sha256:3538d8fb1ee9bdd2e2692b3b18c22bb1c19ffbefd06880f5ac496e42d7bb3884"},
+    {file = "coverage-7.5.3.tar.gz", hash = "sha256:04aefca5190d1dc7a53a4c1a5a7f8568811306d7a8ee231c42fb69215571944f"},
+]
+
+[package.extras]
+toml = ["tomli"]
+
 [[package]]
 name = "cycler"
 version = "0.12.1"
@@ -802,6 +866,25 @@ toml = "*"
 [package.extras]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
 
+[[package]]
+name = "pytest-cov"
+version = "2.12.1"
+description = "Pytest plugin for measuring coverage."
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+files = [
+    {file = "pytest-cov-2.12.1.tar.gz", hash = "sha256:261ceeb8c227b726249b376b8526b600f38667ee314f910353fa318caa01f4d7"},
+    {file = "pytest_cov-2.12.1-py2.py3-none-any.whl", hash = "sha256:261bb9e47e65bd099c89c3edf92972865210c36813f80ede5277dceb77a4a62a"},
+]
+
+[package.dependencies]
+coverage = ">=5.2.1"
+pytest = ">=4.6"
+toml = "*"
+
+[package.extras]
+testing = ["fields", "hunter", "process-tests", "pytest-xdist", "six", "virtualenv"]
+
 [[package]]
 name = "python-dateutil"
 version = "2.9.0.post0"
@@ -1020,4 +1103,4 @@ tests = []
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "2c28d9a7394f494408354cac15d2f5fb9cc6764cf0e743bc7a6080ff5681e997"
+content-hash = "25ca2086b1693b6eee0d5f44c0ca17084b6bea63c8ce8d283ff4279d30e87826"
diff --git a/pyproject.toml b/pyproject.toml
index 49bd8f7..f0eb081 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -118,6 +118,7 @@ requests = "^2.32.3"
 
 [tool.poetry.dev-dependencies]
 pytest = "^6.2.5"
+pytest-cov = "^2.12"
 
 [tool.poetry.extras]
 docs = ["sphinx", "sphinx-rtd-theme"]