Added a script which generates sketch

scripts/Img to Sketch/img-sketch.py

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+import cv2
+
+img = cv2.imread('demo.jpg') # enter your image here
+
+grey_img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+invert = cv2.bitwise_not(grey_img)  
+
+blur = cv2.GaussianBlur(invert, (21, 21), 0)
+invertedblur = cv2.bitwise_not(blur)
+sketch = cv2.divide(grey_img, invertedblur, scale=256.0)
+cv2.imwrite("sketch.png", sketch)
+

scripts/Img to Sketch/readme.md

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+### Script to generate sketch
+This is a simple python script which uses cv2 to generate sketch out of an image
+
+
+[input image](demo.jpg)
+[output image](sketch.png)
+
+<br/>
+
+#### Get started
+
+`pip install -r requirements.txt`
+
+#### Thats it!
+
+`python img-sketch.py`

scripts/Img to Sketch/requirements.txt

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+numpy==1.23.4
+opencv-python==4.6.0.66