diff --git a/.hash b/.hash
index a8429ca..9a4b9d0 100644
--- a/.hash
+++ b/.hash
@@ -5,7 +5,7 @@ deep-learning,44fbc43
 fundamentals-of-ai-and-kr/module1,1677e27
 fundamentals-of-ai-and-kr/module2,9622aab
 fundamentals-of-ai-and-kr/module3,f38189a
-image-processing-and-computer-vision/module1,622c686
+image-processing-and-computer-vision/module1,5a1ba37
 languages-and-algorithms-for-ai/module2,6a33527
 languages-and-algorithms-for-ai/module3,81140bd
 machine-learning-and-data-mining,1677e27
diff --git a/image-processing-and-computer-vision/module1/ipcv1.pdf b/image-processing-and-computer-vision/module1/ipcv1.pdf
index d2f230d..f219892 100644
Binary files a/image-processing-and-computer-vision/module1/ipcv1.pdf and b/image-processing-and-computer-vision/module1/ipcv1.pdf differ