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对准条码自动识别
正在启动摄像头...
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Qe={top:function(t,e){return"%"===t.unit?Math.floor(e.height*(t.value/100)):null},right:function(t,e){return"%"===t.unit?Math.floor(e.width-e.width*(t.value/100)):null},bottom:function(t,e){return"%"===t.unit?Math.floor(e.height-e.height*(t.value/100)):null},left:function(t,e){return"%"===t.unit?Math.floor(e.width*(t.value/100)):null}};function $e(t,e,r){var n={width:t,height:e},o=Object.keys(r).reduce((function(t,e){if(!Qe[e])return t;var o=function(t){return{value:parseFloat(t),unit:(t.indexOf("%"),t.length,"%")}}(r[e]),i=Qe[e](o,n);return t[e]=i,t}),{});return{sx:o.left,sy:o.top,sw:o.right-o.left,sh:o.bottom-o.top}}function Ye(t){if(t<0)throw new Error("expected positive number, received ".concat(t))}var Ze=function(){return y()((function t(e,r){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:Uint8Array,o=arguments.length>3?arguments[3]:void 0;v()(this,t),x()(this,"data",void 0),x()(this,"size",void 0),x()(this,"indexMapping",void 0),r?this.data=r:(this.data=new 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n=e<0||e>360?360:e,o=[0,1,1],i=[0,0,0],a=[255,255,255],u=[0,0,0];console.warn("* imagewrapper overlay getcontext 2d");var c=t.getContext("2d");if(!c)throw new Error("Unable to get canvas context");for(var s=c.getImageData(r.x,r.y,this.size.x,this.size.y),f=s.data,l=this.data.length;l--;){o[0]=this.data[l]*n;var h=4*l,v=o[0]<=0?a:o[0]>=360?u:Ge(o,i),p=d()(v,3);f[h]=p[0],f[h+1]=p[1],f[h+2]=p[2],f[h+3]=255}c.putImageData(s,r.x,r.y)}}])}(),Ke=r(7),Je=r.n(Ke),tr=r(6),er=r.n(tr),rr={drawRect:function(t,e,r,n){r.strokeStyle=n.color,r.fillStyle=n.color,r.lineWidth=n.lineWidth||1,r.beginPath(),r.strokeRect(t.x,t.y,e.x,e.y)},drawPath:function(t,e,r,n){r.strokeStyle=n.color,r.fillStyle=n.color,r.lineWidth=n.lineWidth,r.beginPath(),r.moveTo(t[0][e.x],t[0][e.y]);for(var o=1;o1&&void 0!==arguments[1]?arguments[1]:0,r=e;r2&&void 0!==arguments[2]?arguments[2]:this.SINGLE_CODE_ERROR||1,n=0,o=0,i=0,a=0,u=0,c=0,s=0,f=0;fr)return Number.MAX_VALUE;n+=o}return n/a}},{key:"_nextSet",value:function(t){for(var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,r=e;r1&&(t[r[n]]=o)}},{key:"decodePattern",value:function(t){this._row=t;var e=this.decode();return null===e?(this._row.reverse(),(e=this.decode())&&(e.direction=sr.Reverse,e.start=this._row.length-e.start,e.end=this._row.length-e.end)):e.direction=sr.Forward,e&&(e.format=this.FORMAT),e}},{key:"_matchRange",value:function(t,e,r){var n;for(n=t=t<0?0:t;n0&&void 0!==arguments[0]?arguments[0]:this._nextUnset(this._row),e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:this._row.length,r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=[],o=0;n[o]=0;for(var i=t;i2&&void 0!==arguments[2]&&arguments[2],n=arguments.length>3&&void 0!==arguments[3]&&arguments[3],o=[],i=0,a={error:Number.MAX_VALUE,code:-1,start:0,end:0},u=0,c=0,s=this.AVG_CODE_ERROR;e||(e=this._nextSet(this._row));for(var f=0;f=0&&this._matchRange(n,t.start,0))return t;e=t.end,t=null}return t}},{key:"_verifyTrailingWhitespace",value:function(t){var e=t.end+(t.end-t.start)/2;return en&&(n=o),othis._counters.length)return-1;for(var r=this._computeAlternatingThreshold(t,e),n=this._computeAlternatingThreshold(t+1,e),o=64,i=0,a=0,u=0;u<7;u++)i=0==(1&u)?r:n,this._counters[t+u]>i&&(a|=o),o>>=1;return a}},{key:"_isStartEnd",value:function(t){for(var e=0;e=this._calculatePatternLength(t)/2)&&(e+8>=this._counters.length||this._counters[e+7]>=this._calculatePatternLength(e)/2)}},{key:"_charToPattern",value:function(t){for(var e=t.charCodeAt(0),r=0;r=0;a--){var u=2==(1&a)?n.bar:n.space,c=1==(1&r)?u.wide:u.narrow;c.size+=this._counters[o+a],c.counts++,r>>=1}o+=8}return["space","bar"].forEach((function(t){var e=n[t];e.wide.min=Math.floor((e.narrow.size/e.narrow.counts+e.wide.size/e.wide.counts)/2),e.narrow.max=Math.ceil(e.wide.min),e.wide.max=Math.ceil((2*e.wide.size+1.5)/e.wide.counts)})),n}},{key:"_validateResult",value:function(t,e){for(var r,n=this._thresholdResultPattern(t,e),o=e,i=0;i=0;a--){var u=0==(1&a)?n.bar:n.space,c=1==(1&r)?u.wide:u.narrow,s=this._counters[o+a];if(sc.max)return!1;r>>=1}o+=8}return!0}},{key:"decode",value:function(t,e){if(this._counters=this._fillCounters(),!(e=this._findStart()))return null;var r,n=e.startCounter,o=[];do{if((r=this._toPattern(n))<0)return null;var i=this._patternToChar(r);if(null===i)return null;if(o.push(i),n+=8,o.length>1&&this._isStartEnd(r))break}while(nthis._counters.length?this._counters.length:n;var a=e.start+this._sumCounters(e.startCounter,n-8);return{code:o.join(""),start:e.start,end:a,startInfo:e,decodedCodes:o,format:this.FORMAT}}}])}(lr);function Or(t,e,r){return e=ar()(e),or()(t,function(){try{var t=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],(function(){})))}catch(t){}return function(){return!!t}()}()?Reflect.construct(e,r||[],ar()(t).constructor):e.apply(t,r))}var Mr=function(t){function e(){var t;v()(this,e);for(var r=arguments.length,n=new Array(r),o=0;othis.AVG_CODE_ERROR?null:(this.CODE_PATTERN[r.code]&&(r.correction.bar=this.calculateCorrection(this.CODE_PATTERN[r.code],n,this.MODULE_INDICES.bar),r.correction.space=this.calculateCorrection(this.CODE_PATTERN[r.code],n,this.MODULE_INDICES.space)),r)}n[++a]=1,i=!i}return null}},{key:"_correct",value:function(t,e){this._correctBars(t,e.bar,this.MODULE_INDICES.bar),this._correctBars(t,e.space,this.MODULE_INDICES.space)}},{key:"_findStart",value:function(){for(var t=[0,0,0,0,0,0],e=this._nextSet(this._row),r={error:Number.MAX_VALUE,code:-1,start:0,end:0,correction:{bar:1,space:1}},n=!1,o=0,i=e;i3;){r=this._findNextWidth(t,r),n=0;for(var i=0,a=0;ar&&(i|=1<0;u++)if(t[u]>r&&(n--,2*t[u]>=o))return-1;return i}}return-1}},{key:"_findNextWidth",value:function(t,e){for(var r=Number.MAX_VALUE,n=0;ne&&(r=t[n]);return r}},{key:"_patternToChar",value:function(t){for(var e=0;e=n}},{key:"decode",value:function(){var t=new Uint16Array([0,0,0,0,0,0,0,0,0]),e=[],r=this._findStart();if(!r)return null;var n,o,i=this._nextSet(this._row,r.end);do{t=this._toCounters(i,t);var a=this._toPattern(t);if(a<0)return null;if(null===(n=this._patternToChar(a)))return null;e.push(n),o=i,i+=Ne(t),i=this._nextSet(this._row,i)}while("*"!==n);return e.pop(),e.length&&this._verifyTrailingWhitespace(o,i,t)?{code:e.join(""),start:r.start,end:i,startInfo:r,decodedCodes:e,format:this.FORMAT}:null}}])}(lr);function Dr(t,e,r){return e=ar()(e),or()(t,function(){try{var t=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],(function(){})))}catch(t){}return function(){return!!t}()}()?Reflect.construct(e,r||[],ar()(t).constructor):e.apply(t,r))}var Tr=/[AEIO]/g,Ir=function(t){function e(){var t;v()(this,e);for(var r=arguments.length,n=new Array(r),o=0;o4)return-1;if(0==(1&o))for(var a=0;a="a"&&o<="d"){if(n>e-2)return null;var i=t[++n],a=i.charCodeAt(0),u=void 0;switch(o){case"a":if(!(i>="A"&&i<="Z"))return null;u=String.fromCharCode(a-64);break;case"b":if(i>="A"&&i<="E")u=String.fromCharCode(a-38);else if(i>="F"&&i<="J")u=String.fromCharCode(a-11);else if(i>="K"&&i<="O")u=String.fromCharCode(a+16);else if(i>="P"&&i<="S")u=String.fromCharCode(a+43);else{if(!(i>="T"&&i<="Z"))return null;u=String.fromCharCode(127)}break;case"c":if(i>="A"&&i<="O")u=String.fromCharCode(a-32);else{if("Z"!==i)return null;u=":"}break;case"d":if(!(i>="A"&&i<="Z"))return null;u=String.fromCharCode(a+32);break;default:return console.warn("* code_93_reader _decodeExtended hit default case, this may be an error",u),null}r.push(u)}else r.push(o)}return r}},{key:"_matchCheckChar",value:function(t,e,r){var n=t.slice(0,e),o=n.length,i=n.reduce((function(t,e,n){return t+((-1*n+(o-1))%r+1)*Br.indexOf(e.charCodeAt(0))}),0);return Br[i%47]===t[e].charCodeAt(0)}},{key:"_verifyChecksums",value:function(t){return this._matchCheckChar(t,t.length-2,20)&&this._matchCheckChar(t,t.length-1,15)}},{key:"decode",value:function(t,e){if(!(e=this._findStart()))return null;var r,n,o=new Uint16Array([0,0,0,0,0,0]),i=[],a=this._nextSet(this._row,e.end);do{o=this._toCounters(a,o);var u=this._toPattern(o);if(u<0)return null;if(null===(n=this._patternToChar(u)))return null;i.push(n),r=a,a+=Ne(o),a=this._nextSet(this._row,a)}while("*"!==n);return i.pop(),i.length&&this._verifyEnd(r,a)&&this._verifyChecksums(i)?(i=i.slice(0,i.length-2),null===(i=this._decodeExtended(i))?null:{code:i.join(""),start:e.start,end:a,startInfo:e,decodedCodes:i,format:this.FORMAT}):null}}])}(lr);function qr(t,e){var r=Object.keys(t);if(Object.getOwnPropertySymbols){var n=Object.getOwnPropertySymbols(t);e&&(n=n.filter((function(e){return Object.getOwnPropertyDescriptor(t,e).enumerable}))),r.push.apply(r,n)}return r}function Gr(t){for(var e=1;e.48?null:o}r[++a]=1,i=!i}return null}},{key:"_findStart",value:function(){for(var t=this._nextSet(this._row),e=null;!e;){if(!(e=this._findPattern(Xr,t,!1,!0)))return null;var r=e.start-(e.end-e.start);if(r>=0&&this._matchRange(r,e.start,0))return e;t=e.end,e=null}return null}},{key:"_calculateFirstDigit",value:function(t){for(var e=0;e=10?(n.code-=10,o|=1<<5-i):o|=0<<5-i,e.push(n.code),r.push(n)}var a=this._calculateFirstDigit(o);if(null===a)return null;e.unshift(a);var u=this._findPattern(Qr,n.end,!0,!1);if(null===u||!u.end)return null;r.push(u);for(var c=0;c<6;c++){if(!(u=this._decodeCode(u.end,10)))return null;r.push(u),e.push(u.code)}return u}},{key:"_verifyTrailingWhitespace",value:function(t){var e=t.end+(t.end-t.start);return e=0;r-=2)e+=t[r];e*=3;for(var n=t.length-1;n>=0;n-=2)e+=t[n];return e%10==0}},{key:"_decodeExtensions",value:function(t){var e=this._nextSet(this._row,t),r=this._findPattern($r,e,!1,!1);if(null===r)return null;for(var n=0;n0){var u=this._decodeExtensions(a.end);if(!u)return null;if(!u.decodedCodes)return null;var c=u.decodedCodes[u.decodedCodes.length-1],s={start:c.start+((c.end-c.start)/2|0),end:c.end};if(!this._verifyTrailingWhitespace(s))return null;o={supplement:u,code:r.join("")+u.code}}return Gr(Gr({code:r.join(""),start:i.start,end:a.end,startInfo:i,decodedCodes:n},o),{},{format:this.FORMAT})}}])}(lr);function Jr(t,e,r){return e=ar()(e),or()(t,function(){try{var t=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],(function(){})))}catch(t){}return function(){return!!t}()}()?Reflect.construct(e,r||[],ar()(t).constructor):e.apply(t,r))}var tn=function(t){function e(){var t;v()(this,e);for(var r=arguments.length,n=new Array(r),o=0;o=10&&(r|=1<<1-c),1!==c&&(n=this._nextSet(this._row,u.end),n=this._nextUnset(this._row,n))}if(2!==i.length||parseInt(i.join(""))%4!==r)return null;var s=this._findStart();return{code:i.join(""),decodedCodes:a,end:u.end,format:this.FORMAT,startInfo:s,start:s.start}}}])}(Kr);function en(t,e,r){return e=ar()(e),or()(t,function(){try{var t=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],(function(){})))}catch(t){}return function(){return!!t}()}()?Reflect.construct(e,r||[],ar()(t).constructor):e.apply(t,r))}var rn=[24,20,18,17,12,6,3,10,9,5];var nn=function(t){function e(){var t;v()(this,e);for(var r=arguments.length,n=new Array(r),o=0;o=10&&(r|=1<<4-c),4!==c&&(n=this._nextSet(this._row,i.end),n=this._nextUnset(this._row,n))}if(5!==a.length)return null;if(function(t){for(var e=t.length,r=0,n=e-2;n>=0;n-=2)r+=t[n];r*=3;for(var o=e-1;o>=0;o-=2)r+=t[o];return(r*=3)%10}(a)!==function(t){for(var e=0;e<10;e++)if(t===rn[e])return e;return null}(r))return null;var s=this._findStart();return{code:a.join(""),decodedCodes:u,end:i.end,format:this.FORMAT,startInfo:s,start:s.start}}}])}(Kr);function on(t,e,r){return e=ar()(e),or()(t,function(){try{var t=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],(function(){})))}catch(t){}return function(){return!!t}()}()?Reflect.construct(e,r||[],ar()(t).constructor):e.apply(t,r))}var an=function(t){function e(){var t;v()(this,e);for(var r=arguments.length,n=new Array(r),o=0;o2&&void 0!==arguments[2]&&arguments[2],n=arguments.length>3&&void 0!==arguments[3]&&arguments[3],o=new Array(t.length).fill(0),i=0,a={error:Number.MAX_VALUE,start:0,end:0},u=this.AVG_CODE_ERROR;r=r||!1,n=n||!1,e||(e=this._nextSet(this._row));for(var c=e;c=0&&this._matchRange(t,r.start,0))return r;e=r.end,r=null}return null}},{key:"_verifyTrailingWhitespace",value:function(t){var e=t.end+(t.end-t.start)/2;return e=t.length?{done:!0}:{done:!1,value:t[n++]}},e:function(t){throw t},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=r.call(t)},n:function(){var t=r.next();return 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i?e.length<2||e.length>16||r.length!==e.length-1?null:this._validateSpaces(r)&&this._validateBarSizeCount(e)?{bars:this._smoothBarWidths(e),spaces:r,end:n}:null:null}},{key:"_validateBarSizeCount",value:function(t){if(0===t.length)return!1;var e,r=[],n=sn(t);try{for(n.s();!(e=n.n()).done;){var o,i=e.value,a=!1,u=sn(r);try{for(u.s();!(o=u.n()).done;){var c=o.value,s=c.reduce((function(t,e){return t+e}),0)/c.length;if(Math.abs(i-s)<=.35*s){c.push(i),a=!0;break}}}catch(t){u.e(t)}finally{u.f()}a||r.push([i])}}catch(t){n.e(t)}finally{n.f()}return!(r.length>2)}},{key:"_validateSpaces",value:function(t){if(0===t.length)return!0;var e=t.reduce((function(t,e){return t+e}),0)/t.length;if(0===e)return!1;var r=t.reduce((function(t,r){return t+Math.pow(r-e,2)}),0)/t.length;return Math.sqrt(r)/e<=.35}},{key:"_validateBarRatios",value:function(t,e){var r=t.reduce((function(t,e){return t+e}),0)/t.length,n=t.reduce((function(t,e){return t+Math.abs(e-r)}),0)/t.length;if((0===r?0:n/r)<=.1){var o=e.length>0?e.reduce((function(t,e){return t+e}),0)/e.length:0;if(o>0)if(o/r<.7)return{narrowWidth:r/2.5,wideRatio:2.5};return{narrowWidth:r,wideRatio:2}}var i=Array.from(new Set(t.slice().sort((function(t,e){return t-e}))));if(i.length<2)return{narrowWidth:t.reduce((function(t,e){return t+e}),0)/t.length,wideRatio:2};for(var a=[],u=0;uR)){var S,A=.15*C.avgN,E=.15*C.avgW,k=!0,j=sn(C.narrowBars);try{for(j.s();!(S=j.n()).done;){var P=S.value;if(Math.abs(P-C.avgN)>A){k=!1;break}}}catch(t){j.e(t)}finally{j.f()}if(k){var D,T=sn(C.wideBars);try{for(T.s();!(D=T.n()).done;){var I=D.value;if(Math.abs(I-C.avgW)>E){k=!1;break}}}catch(t){T.e(t)}finally{T.f()}if(k)return{narrowWidth:C.avgN,wideRatio:C.matchedRatio}}}}return null}},{key:"_validatePeriodicity",value:function(t,e){if(t.length>0){var r=t.reduce((function(t,e){return t+e}),0)/t.length,n=t.reduce((function(t,e){return t+Math.pow(e-r,2)}),0)/t.length,o=Math.sqrt(n);if((0!==r?o/r:0)>.65)return!1}if(e.length>0){var i=e.reduce((function(t,e){return t+e}),0)/e.length,a=e.reduce((function(t,e){return t+Math.pow(e-i,2)}),0)/e.length,u=Math.sqrt(a);if((0!==i?u/i:0)>.55)return!1}return!0}},{key:"_validateQuietZones",value:function(t,e,r){var n=1*e;if(t.start>=2&&t.startr?Math.pow(2,i+1):Math.pow(2,i)}for(var a="",u=o.length-1;u>=0;u--)a+=o[u]>r?"W":"N";return{value:n,pattern:a}}},{key:"_verifyTrailingWhitespace",value:function(t,e){var r=Math.min(t+2*e,this._row.length);return this._matchRange(t,r,0)}},{key:"_validatePatternConsistency",value:function(t,e){for(var r=t.start,n=0,o=0,i=0,a=[-2,-1,1,2];i=this._row.length)){o++;var c=this._extractBarsAndSpaces(u);if(c&&c.bars.length===e.length){for(var s=!0,f=0;f.25){s=!1;break}}s&&n++}}}return o>0&&n>=.5*o}},{key:"decode",value:function(t,e){var r=this._findStart();if(!r)return null;if(r.start>.5*this._row.length)return null;var n=this._extractBarsAndSpaces(r.start);if(!n)return null;var o=n.bars,i=n.spaces,a=n.end;if(o.reduce((function(t,e){return t+e}),0)+i.reduce((function(t,e){return t+e}),0)<20)return null;if(this._row.length-a<0)return null;if(!this._validateSpaces(i))return null;if(!this._validatePeriodicity(o,i))return null;if(!this._validatePatternConsistency(r,o))return null;var u=this._validateBarRatios(o,i);if(!u)return null;if(!this._validateQuietZones(r,u.narrowWidth,a))return null;var c=this._decodeBars(o,u.narrowWidth);if(!c)return null;var s=c.value;if(s<3||s>131070)return null;var f=o.reduce((function(t,e){return t+e}),0)/o.length;this._verifyTrailingWhitespace(a,f);var l=o.map((function(t,e){return{code:t>1.6*Math.min.apply(Math,Ar()(o))?1:0,start:0,end:0,error:0}}));return{code:s.toString(),start:r.start,end:a,startInfo:r,decodedCodes:l,pattern:c.pattern,format:this.FORMAT}}}])}(lr);x()(hn,"adjacentLineValidationMatches",1);var vn=hn;function pn(t,e){var r=Object.keys(t);if(Object.getOwnPropertySymbols){var n=Object.getOwnPropertySymbols(t);e&&(n=n.filter((function(e){return 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