濡備綍浣跨敤OpenCV鑷�畾涔夊幓璇嗗埆闈�

鍘昏韩浠芥槸鎸囧皢鏁版嵁鍖垮悕鍖栫殑杩囩▼銆傞殢鐫€娆ф床鑱旂洘鐨凣DPR鍜屽叾浠栧浗瀹剁殑绫讳技鎺�柦鐨勫疄鏂斤紝淇濇姢PII(涓�汉韬�唤淇℃伅)鎴愪负鍑嗗�鏁版嵁闆嗘垨浠讳綍涓�汉淇℃伅澶勭悊鐨勫繀瑕佹�楠ゃ€傚綋鐒讹紝涓€涓�汉(鈩�)鐨勮劯鏄�竴涓�汉(鈩�)韬�唤鏈€绐佸嚭鐨勭壒寰佷箣涓€锛屽洜姝ゆ湁寰堝�瑙ｅ喅鏂规濡備�鍙�互妫€娴嬪拰鍖垮悕鍖栭潰瀛斻€備絾鏄�紝瀹冧滑寰堥毦瀹氬埗鍜岃嚜鍔ㄥ寲銆傝繖鏄�竴浠紻IY鎸囧崡锛岄潰鍚戦偅浜涙兂瑕佷娇鐢ㄥ紑鏀炬簮鐮佽嚜宸卞仛杩欎欢浜嬬殑浜恒€傛暣涓�唬鐮佺ず渚嬪彲浠ュ湪Colab涓�繍琛岋紝骞跺彲鍦ㄦ�澶勮幏寰椼€� GDPR here锛歨ttps://github.com/changsin/DL/blob/main/noteb綍鏋ooks/deidentify_faces_opencv.ipynb

鑷�姩鍖垮悕鍖栦汉鑴告墍娑夊強鐨勬�楠ゅ寘鎷�細

1.浜鸿劯妫€娴�

鐢变簬浜鸿劯妫€娴嬫槸瀵硅薄妫€娴嬬殑涓€绉嶇被鍨嬶紝鍥犳�鎴戜滑鍙�互浣跨敤娣卞害瀛︿範缃戠粶鏉ュ疄鐜拌繖涓€鐩�殑銆侽penCV鍖呭惈涓€涓�繁搴﹀�涔犵�缁忕綉缁滐紝璇ョ綉缁滅粡杩囬�鍏堣�缁冿紝鍙�互浣跨敤鍏�紑鍙�敤鐨勬暟鎹�泦妫€娴嬩汉鑴搞勫缓€傚畠浣跨敤Caffe娣卞害瀛︿範妗嗘灦锛屾偍鍙�互涓嬭浇妯″瀷瀹氫箟鍜岄�鍏堣�缁冪殑鏉冮噸鏂囦欢銆備笅杞藉悗锛屽姞杞藉畠浠�互鍒涘缓娣卞害绁炵粡缃戠粶锛岃�缃戠粶鐜板湪鍙�互妫€娴嬪浘鍍忎腑鐨勪汉鑴搞€� Caffe Deep Learning framework

鐜板湪锛屾垜浠�彧闇€瑕佸姞杞藉浘鍍忓苟灏嗗叾浼犻€掔粰DNN浠ユ�娴嬩汉鑴革紝濡備互涓嬩唬鐮佺墖娈垫墍绀猴細

姣鑷�忎釜棰勬祴缁撴灉鍖呭惈绫诲埆ID(绱㈠紩=1)銆佺疆淇″害(绱㈠紩=2)鍜屾�娴嬪埌鐨勯潰閮ㄥ潗鏍囥€�

# a sample prediction output from DNN array([0.        , 1.&繁鐨nbsp;       , 0.8745881 , 0.68375957, 0.47576728,        0.75310016, 0.62532324], dtyp勮劯e=float32) 

鍥犱负鎴戜滑鍙��浜鸿劯妫€娴嬫劅鍏磋叮锛屾墍浠ユ垜浠�彲浠ュ彧鍏虫敞缃�俊姒傜巼锛屽苟浣跨敤瀹冩潵鎺ュ彈鎴栨嫆缁濋�娴嬨€�

鐜板湪璁╋紵euro鈩㈠�鐞嗕竴涓�ず渚嬪浘鍍忋€傛垜涔嬫墍浠ラ€夋嫨杩欏紶鍏�紑鍙戝竷鐨勫浘鐗囷紝鏄�洜涓哄畠鏈変笉鍚岃�搴﹀拰鑲よ壊鐨凱eople-uro鈩㈢殑闈㈠瓟銆�

褰撶疆淇″害闃堝€艰�缃�负0.5(鍗�50閮ㄦ%纭�俊杩欐槸涓€寮犺劯)鏃讹紝瀹冨彧妫€娴嬪埌涓€寮犺劯锛氶潰鍚戝墠闈㈢殑浜恒€�

杩欐槸鍙�互鐞嗚В鐨勶紝涔熸槸鎵€鏈変汉鑴告�娴嬬畻娉曠殑鍏卞悓闂��銆傝В鍐宠繖涓�棶棰樼殑姝ｇ‘鏂规硶鏄�坊鍔犳洿澶氱�绫荤殑鍖呭惈渚ч潰杞�粨鍜屽叾浠栬�搴︾殑鍥惧儚銆備竴绉嶇畝鍗曡€屽粔浠风殑鏂规硶灏辨槸绠€鍗曞湴闄嶄綆淇″績銆備緥濡傦紝褰撶疆淇″害璁剧疆涓�0.12鏃讹紝缁撴灉浼氬ā绯ソ寰楀�銆�

鐒惰€岋紝寮曞叆浜嗕竴涓�柊鐨勯棶棰樸€傚湪濡傛�浣庣殑缃�俊闃堝€间笅锛岄�璁′細鏈夋洿澶氱殑鍋囬槼鎬у拰鍋囬槾鎬с€備綘鍙�互鍦ㄥ乏杈圭湅鍒颁笁涓�爣鏈夋爣绛剧殑鐩掑瓙銆傚ソ娑堟伅鏄�紝鎮ㄥ彲浠ュ湪涓€瀹氱▼搴︿笂鎺у埗妯″瀷棰勬祴銆�

2.浜鸿劯鍖垮悕鍖�

涓€鏃︽�娴嬪埌浜鸿劯锛屼笅涓€姝ュ氨鏄��浣曞�鍏惰繘琛屽尶鍚嶅寲/鍘昏韩浠借瘑鍒�€傚瓨鍦ㄤ笉鍚岀殑鎶€婂伐鏈�€傛垜灏嗗睍绀轰笁绉嶆柟娉曪細鍗充袱绉嶆ā绯婃妧鏈�拰涓€绉嶅儚绱犲寲鏂规硶銆�

a.鐭╁舰涓�殑妯＄硦澶勭悊

鏈€绠€鍗曠殑鏂规硶鏄�娇鐢∣penCV芒uro鈩㈢殑妯＄硦鏂规硶锛岃�鏂规硶閫氳繃瀵瑰嵎绉�唴鏍稿唴鐨勫儚绱犲€艰繘琛屽钩鍧囨潵瀹炵幇銆傛崲鍙ヨ瘽璇达紝鍗风Н鐨勪綔鐢ㄧ浉褰撲簬骞虫粦鐨勮繃婊ゃ€傞€氳繃璋冩暣鍐呮牳澶у皬锛屽彲浠ヨ幏寰楁垨澶氭垨灏戠殑绮楃矑搴︽ā鍏�绯婃晥鏋溿€傜敱浜庡浘鍍忔槸浣滀负澶氱淮鏁存暟鏁扮粍澶勭悊鐨勶紝鍥犳�鎮ㄥ彧闇€鍦ㄤ竴琛屼唬鐮佷腑灏嗘劅鍏磋叮鍖哄煙鏇挎崲涓烘ā绯婂儚绱犲嵆鍙�細 OpenCV芒鈧�劉s blur

image[startY:endY, startX:endX] = cv2.blur(image[startY:endY, startX:endX],濡備 kernel_size) 

浠ヤ笅鏄�娇鐢╧ernel_size(20锛�20)鏃剁殑缁撴灉锛�

b.鐪佺暐鍙蜂腑鐨勬ā绯婂�鐞�

铏界劧鍦ㄧ煩褰�腑杩涜�妯＄硦鍙�互瀹炵幇鎵€闇€鐨勫尶鍚嶅寲锛屼絾鐢熸垚鐨勫浘鍍忕湅璧锋潵鐩稿綋涓嶅拰璋愩€備娇鐢ㄨ緝灏忕殑鏍稿ぇ灏忥紝鍙�互骞虫粦涓嶄竴鑷寸殑妯＄硦锛屼絾鍙︿竴绉嶆柟娉曟槸鍦ㄦき鍦嗕腑杩涜�妯＄硦锛屽洜涓篜eo綍鏋ple锛焨ro鈩㈢殑鑴告槸妞�渾褰㈢殑銆傝�鍋氬埌杩欎竴鐐癸紝闇€瑕侀€氳繃鍒涘缓鎺╃爜鍜屾墽琛屼竴浜涙寜浣嶆搷浣滄潵瀹屾垚涓€浜涘伐浣溿€備互涓嬫槸(10锛�10)鍐呮牳澶у皬鐨勭粨鏋滐細

c.鍍忕礌鍖�

鍙︿竴绉嶆祦琛岀殑鍘昏瘑鍒�汉鑴哥殑鏂规硶鏄�娇鐢ㄅ撳儚绱犲寲銆傚湪鍍忕礌鍖栦腑锛屾劅鍏磋叮鐨勫尯鍩熻�鍒嗘垚鍑犱釜灏忓潡銆�-euro锟藉湪鍍忕礌鍖栦腑锛屾劅鍏磋叮鐨勫尯鍩熻�鍒勫缓嗘垚鍑犱釜灏忓潡銆傚�浜庢瘡涓�尅璺�紝灏嗚�绠楀钩鍧嘡GB鍊煎苟灏嗗叾搴旂敤浜庢暣涓�尅璺�€傚�鎮ㄦ墍瑙侊紝鐢熸垚鐨勫浘鍍忕湅璧锋潵闈炲父鑷�劧锛�

缁撹�

鍙栨秷浜鸿劯璇嗗埆鏄�繚鎶ら殣绉佺殑绗�竴姝ャ€傝櫧鐒舵湁璁稿�鐜版垚鐨勮В鍐虫柟妗堝彲鐢�紝浣嗘湰鏂囧睍绀轰簡浣跨敤OpenCV杩涜�鑷�畾涔夊拰鑷�姩鍖栫殑绠€鍗旸IY姝ラ�銆傛暣涓�簮浠ｇ爜閮藉湪Jupyter绗鑷�旇�鏈�笂锛屽彲浠ュ湪杩欓噷鎵惧埌銆俬ttps://github.com/changsin/DL/blob/main/notebooks/deidentify_faces_opencv.ipynb

鍙傝€冩枃鐚�

浣跨敤OpenCV鍜孭ython妯＄硦鍜屽尶鍚嶅寲浜鸿劯 鍩轰簬OpenCV鍜屾繁搴﹀�涔犵殑浜鸿劯妫€娴�