Commit 5149e7f

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Merge pull request avinashkranjan#743 from A-kriti/master

Negative/ghost image

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	`1`	`+import matplotlib.pyplot as plt`
	`2`	`+import numpy as np`
	`3`	`+import cv2`
	`4`	`+import os.path`
	`5`	`+`
	`6`	`+# take path of the image as input`
	`7`	`+img_path = input("Enter the path here:") #example -> C:\Users\xyz\OneDrive\Desktop\project\image.jpg`
	`8`	`+img = cv2.imread(img_path)`
	`9`	`+image = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)`
	`10`	`+image_small = cv2.pyrDown(img)`
	`11`	`+number_iter = 5`
	`12`	`+for _ in range(number_iter):`
	`13`	`+ image_small= cv2.bilateralFilter(image_small, d=9, sigmaColor=9, sigmaSpace=7)`
	`14`	`+image_rgb = cv2.pyrUp(image_small)`
	`15`	`+image_gray = cv2.cvtColor(image_rgb, cv2.COLOR_RGB2GRAY)`
	`16`	`+image_blur = cv2.medianBlur(image_gray, 7)`
	`17`	`+image_edge = cv2.adaptiveThreshold(image_blur, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 7, 2)`
	`18`	`+image_edge = cv2.cvtColor(image_edge, cv2.COLOR_GRAY2RGB)`
	`19`	`+array = cv2.bitwise_xor(image, image_edge) #taking xor between image and image_edge to get ghost filter`
	`20`	`+plt.figure(figsize= (10,10))`
	`21`	`+plt.imshow(array)`
	`22`	`+plt.axis('off')`
	`23`	`+`
	`24`	`+filename = os.path.basename(img_path)`
	`25`	`+`
	`26`	`+plt.savefig("(Filtered)"+filename)`
	`27`	`+plt.show() #real ghost filtered photo`

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	`1`	`+# Applying Ghost filter on an image.`
	`2`	`+`
	`3`	`+Converting an image into ghost/negative image using OpenCv, Matplotlib and Numpy.`
	`4`	`+`
	`5`	`+## Steps:`
	`6`	`+* Firstly imported the required libraries which are Numpy, Matplotlib, Os and Cv2.`
	`7`	`+* Read the input image/Real image using cv2`
	`8`	`+`
	`9`	`+## Methods Used`
	`10`	`+* Used Bilateral Filter`
	`11`	`+* Followed by Median Blur`
	`12`	`+* Followed by Adaptive Threshold`
	`13`	`+* And at last used Bitwise Xor`
	`14`	`+* Finally converted the image into ghost filter image`
	`15`	`+`
	`16`	`+`
	`17`	`+## Original Image`
	`18`	`+<img src="Images/Real Photo.jpg" height="300px">`
	`19`	`+`
	`20`	`+## Ghost Filter Image`
	`21`	`+<img src="Images/Ghost Filtered Image_.jpg" height="300px">`
	`22`	`+`

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