diff --git a/README.md b/README.md
index e3fc194..f431c6c 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ new_img = img.clone()
 new_img = img.clone(True)
 ```
 
-### Basic pixel manipulation
+### Basic pixel operations
 
 ```python
 # Get pixel value
@@ -65,7 +65,7 @@ img.clear()
 img.copy_data(another_img)
 ```
 
-### File manipulation
+### File operations
 
 #### Raw dump files
 
@@ -135,3 +135,18 @@ Ensure `floatimg` containing path is in the `PYTHONPATH`, this will run the test
 pytest --cov=floatimg tests/*
 ```
 
+### Status
+
+The goal is not to bind all the functions but essential ones too build a front-end with python-tkinter. 
+
+#### Done
+
+ - lib/fimg-core.c
+ - lib/fimg-file.c
+ - lib/operator.c
+ - funcs/exporter.c
+ - funcs/fimg-png.c
+
+#### Partial
+
+ - lib/fimg-math.c
\ No newline at end of file
diff --git a/floatimg/image.py b/floatimg/image.py
index 9b0022f..248001e 100644
--- a/floatimg/image.py
+++ b/floatimg/image.py
@@ -319,15 +319,16 @@ class FloatImg:
         """return a new image with minimum pixel values per channel between current and parameter"""
         res = self.clone(False)
         # C code inverts comparison
-        assert c_fimg_maximum(self.c_img_p, img.c_img_p, res.c_img_p) == 0
+        assert c_fimg_minimum(self.c_img_p, img.c_img_p, res.c_img_p) == 0
         return res
 
+
     #######################################################################################################
     def max(self, img):
         """return a new image with maximum pixel values per channel between current and parameter"""
         res = self.clone(False)
         # C code inverts comparison
-        assert c_fimg_minimum(self.c_img_p, img.c_img_p, res.c_img_p) == 0
+        assert c_fimg_maximum(self.c_img_p, img.c_img_p, res.c_img_p) == 0
         return res
 
     #######################################################################################################
diff --git a/tests/maths.py b/tests/maths.py
index c5b1c15..2c288c8 100644
--- a/tests/maths.py
+++ b/tests/maths.py
@@ -9,4 +9,4 @@ def test_maxvaalue():
     img = floatimg.create_rgb(width, height)
     color = (255.0, 255.0, 255.0)
     img.put(2,2, color)
-    assert img.maxvalue() == 255.0ls
+    assert img.maxvalue() == 255.0