diff --git a/.hash b/.hash
index 31075c6..76bb1a0 100644
--- a/.hash
+++ b/.hash
@@ -8,7 +8,7 @@ year1/fundamentals-of-ai-and-kr/module1,79b3324
 year1/fundamentals-of-ai-and-kr/module2,79b3324
 year1/fundamentals-of-ai-and-kr/module3,79b3324
 year1/image-processing-and-computer-vision/module1,892ed09
-year1/image-processing-and-computer-vision/module2,0f10df5
+year1/image-processing-and-computer-vision/module2,d7b3402
 year1/languages-and-algorithms-for-ai/module2,9d6b6aa
 year1/languages-and-algorithms-for-ai/module3,0adfef3
 year1/machine-learning-and-data-mining,79b3324
diff --git a/year1/image-processing-and-computer-vision/module2/ipcv2.pdf b/year1/image-processing-and-computer-vision/module2/ipcv2.pdf
index ad353bb..ecc2173 100644
Binary files a/year1/image-processing-and-computer-vision/module2/ipcv2.pdf and b/year1/image-processing-and-computer-vision/module2/ipcv2.pdf differ