[ImgBot] Optimize images (#20)

*Total -- 2,288.73kb -> 1,986.39kb (13.21%) /Media/nature_output.png -- 47.70kb -> 13.15kb (72.43%) /Media/Shape_Detected.png -- 6.22kb -> 1.77kb (71.47%) /Media/coins_hog.png -- 83.10kb -> 37.24kb (55.18%) /Media/port-templatematching.jpg -- 0.96kb -> 0.63kb (34.31%) /Media/sample2.jpeg -- 16.21kb -> 12.05kb (25.64%) /Media/edge-detection.jpg -- 323.98kb -> 261.54kb (19.27%) /Media/road_segmentation.jpg -- 243.94kb -> 197.86kb (18.89%) /Media/opencv-logo-white.png -- 7.91kb -> 7.02kb (11.25%) /Media/thumbs_up_down_countour.jpg -- 12.09kb -> 10.73kb (11.22%) /Media/face-detected-dnn.jpeg -- 182.77kb -> 167.50kb (8.35%) /Media/face-detected.jpeg -- 183.56kb -> 168.26kb (8.33%) /Media/corner_detection.jpg -- 52.04kb -> 47.87kb (8.01%) /Media/book_on_table.jpeg -- 212.92kb -> 195.98kb (7.96%) /Media/pieboard-templatematching.jpg -- 176.26kb -> 162.40kb (7.86%) /Media/port-detected.jpeg -- 195.25kb -> 180.09kb (7.76%) /Media/apple.jpeg -- 36.07kb -> 34.21kb (5.17%) /Media/coins.jpg -- 15.94kb -> 15.18kb (4.77%) /Media/face-001.jpg -- 179.57kb -> 171.42kb (4.54%) /21. Facial Recognition/images/obama.jpg -- 273.36kb -> 263.46kb (3.62%) /Media/Shapes.png -- 2.60kb -> 2.52kb (3.19%) /Media/cropped image1.png -- 24.35kb -> 23.75kb (2.46%) /Media/book.png -- 11.94kb -> 11.75kb (1.64%) Signed-off-by: ImgBotApp <ImgBotHelp@gmail.com> Signed-off-by: ImgBotApp <ImgBotHelp@gmail.com> Co-authored-by: ImgBotApp <ImgBotHelp@gmail.com>

Author: imgbot[bot]