diff --git a/imagelib/color_transfer.py b/imagelib/color_transfer.py
index 5274d53..be580a0 100644
--- a/imagelib/color_transfer.py
+++ b/imagelib/color_transfer.py
@@ -117,20 +117,20 @@ def linear_color_transfer(target_img, source_img, mode='pca', eps=1e-5):
     if mode == 'chol':
         chol_t = np.linalg.cholesky(Ct)
         chol_s = np.linalg.cholesky(Cs)
-        ts = chol_s.dot(np.linalg.inv(chol_t)).dot(t)
+        ts = chol_s.dot(np.linalg.pinv(chol_t)).dot(t)
     if mode == 'pca':
         eva_t, eve_t = np.linalg.eigh(Ct)
         Qt = eve_t.dot(np.sqrt(np.diag(eva_t))).dot(eve_t.T)
         eva_s, eve_s = np.linalg.eigh(Cs)
         Qs = eve_s.dot(np.sqrt(np.diag(eva_s))).dot(eve_s.T)
-        ts = Qs.dot(np.linalg.inv(Qt)).dot(t)
+        ts = Qs.dot(np.linalg.pinv(Qt)).dot(t)
     if mode == 'sym':
         eva_t, eve_t = np.linalg.eigh(Ct)
         Qt = eve_t.dot(np.sqrt(np.diag(eva_t))).dot(eve_t.T)
         Qt_Cs_Qt = Qt.dot(Cs).dot(Qt)
         eva_QtCsQt, eve_QtCsQt = np.linalg.eigh(Qt_Cs_Qt)
         QtCsQt = eve_QtCsQt.dot(np.sqrt(np.diag(eva_QtCsQt))).dot(eve_QtCsQt.T)
-        ts = np.linalg.inv(Qt).dot(QtCsQt).dot(np.linalg.inv(Qt)).dot(t)
+        ts = np.linalg.inv(Qt).dot(QtCsQt).dot(np.linalg.pinv(Qt)).dot(t)
     matched_img = ts.reshape(*target_img.transpose(2, 0, 1).shape).transpose(1, 2, 0)
     matched_img += mu_s
     matched_img[matched_img > 1] = 1
@@ -138,7 +138,8 @@ def linear_color_transfer(target_img, source_img, mode='pca', eps=1e-5):
     return matched_img
 
 
-def lab_linear_color_transform(target_img, source_img, eps=1e-5, mode='pca'):
+def linear_lab_color_transform(target_img, source_img, eps=1e-5, mode='pca'):
+    """doesn't work yet"""
     np.clip(source_img, 0, 1, out=source_img)
     np.clip(target_img, 0, 1, out=target_img)
 
@@ -149,7 +150,7 @@ def lab_linear_color_transform(target_img, source_img, eps=1e-5, mode='pca'):
     target_img = cv2.cvtColor(target_img.astype(np.float32), cv2.COLOR_BGR2LAB)
 
     target_img = linear_color_transfer(target_img, source_img, mode=mode, eps=eps)
-    target_img = cv2.cvtColor(target_img, cv2.COLOR_LAB2BGR)
+    target_img = cv2.cvtColor(np.clip(target_img, 0, 1).astype(np.float32), cv2.COLOR_LAB2BGR)
     np.clip(target_img, 0, 1, out=target_img)
     return target_img