diff --git a/DIRECTORY.md b/DIRECTORY.md
index 78afe07ec21f..cc73b18db50a 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -72,6 +72,9 @@
   * [Huffman](https://github.com/TheAlgorithms/Python/blob/master/compression/huffman.py)
   * [Peak Signal To Noise Ratio](https://github.com/TheAlgorithms/Python/blob/master/compression/peak_signal_to_noise_ratio.py)
 
+## Computer Vision
+  * [Harriscorner](https://github.com/TheAlgorithms/Python/blob/master/computer_vision/harriscorner.py)
+
 ## Conversions
   * [Decimal To Binary](https://github.com/TheAlgorithms/Python/blob/master/conversions/decimal_to_binary.py)
   * [Decimal To Hexadecimal](https://github.com/TheAlgorithms/Python/blob/master/conversions/decimal_to_hexadecimal.py)
@@ -350,6 +353,7 @@
   * [Monte Carlo](https://github.com/TheAlgorithms/Python/blob/master/maths/monte_carlo.py)
   * [Monte Carlo Dice](https://github.com/TheAlgorithms/Python/blob/master/maths/monte_carlo_dice.py)
   * [Newton Raphson](https://github.com/TheAlgorithms/Python/blob/master/maths/newton_raphson.py)
+  * [Number Of Digits](https://github.com/TheAlgorithms/Python/blob/master/maths/number_of_digits.py)
   * [Numerical Integration](https://github.com/TheAlgorithms/Python/blob/master/maths/numerical_integration.py)
   * [Perfect Square](https://github.com/TheAlgorithms/Python/blob/master/maths/perfect_square.py)
   * [Pi Monte Carlo Estimation](https://github.com/TheAlgorithms/Python/blob/master/maths/pi_monte_carlo_estimation.py)
@@ -375,6 +379,7 @@
   * [Softmax](https://github.com/TheAlgorithms/Python/blob/master/maths/softmax.py)
   * [Square Root](https://github.com/TheAlgorithms/Python/blob/master/maths/square_root.py)
   * [Sum Of Arithmetic Series](https://github.com/TheAlgorithms/Python/blob/master/maths/sum_of_arithmetic_series.py)
+  * [Sum Of Digits](https://github.com/TheAlgorithms/Python/blob/master/maths/sum_of_digits.py)
   * [Test Prime Check](https://github.com/TheAlgorithms/Python/blob/master/maths/test_prime_check.py)
   * [Trapezoidal Rule](https://github.com/TheAlgorithms/Python/blob/master/maths/trapezoidal_rule.py)
   * [Volume](https://github.com/TheAlgorithms/Python/blob/master/maths/volume.py)
diff --git a/computer_vision/README.md b/computer_vision/README.md
new file mode 100644
index 000000000000..3a561d2f1f24
--- /dev/null
+++ b/computer_vision/README.md
@@ -0,0 +1,8 @@
+### Computer Vision
+
+Computer vision is a field of computer science that works on enabling computers to see,
+identify and process images in the same way that human vision does, and then provide appropriate output.
+It is like imparting human intelligence and instincts to a computer. 
+Image processing and computer vision and little different from each other.Image processing means applying some algorithms for transforming image from one form to other like smoothing,contrasting, stretching etc
+While in computer vision comes from modelling image processing using the techniques of machine learning.Computer vision applies machine learning to recognize patterns for interpretation of images. 
+Much like the process of visual reasoning of human vision