if __name__ == "__main__":
if len(sys.argv) != 2:
print("main_filter.py <relative/path/to/file>")
exit(0)
filts = Filters()
img = cv2.imread(sys.argv[1])
img = cv2.resize(img, (int(img.shape[1]/2), int(img.shape[0]/2)))
cv2.imshow("original image", img)
gray_img = rgb2gray(img)
cv2.imshow("gray scaled", gray_img)
vert_fil_img = filts.verticalFilter(gray_img)
cv2.imshow("vertical filtered", vert_fil_img)
cv2.imshow("vertical filtered diff", subImg(gray_img[1:-1,1:-1], vert_fil_img))
horz_fil_img = filts.horizontalFilter(gray_img)
cv2.imshow("horizontal filtered", horz_fil_img)
cv2.imshow("horizontal filtered diff", subImg(gray_img[1:-1,1:-1], horz_fil_img))
gauss_img = filts.gaussianFilter(gray_img,13)
cv2.imshow("gaussian filtered", gauss_img)
cv2.imshow("gaussian filtered diff", subImg(gray_img[6:-6,6:-6], gauss_img))
print("to terminate pres ESC")
cv2.waitKey(0)
cv2.destroyAllWindows()
