1 line
64 KiB
JavaScript
1 line
64 KiB
JavaScript
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var jsfeat=jsfeat||{REVISION:"ALPHA"};(function(r){var o=1.192092896e-7;var l=1e-37;var m=256,i=512,h=1024,x=2048,w=4096;var A=1,n=2,b=3,p=4;var z=new Int32Array([-1,1,4,-1,4,-1,-1,-1,8,-1,-1,-1,-1,-1,-1,-1,8]);var y=(function(){return function(B){return(B&65280)}})();var k=(function(){return function(B){return(B&255)}})();var c=(function(){return function(B){return z[(B&65280)>>8]}})();var a=0;var f=1;var e=2;var u=3;var d=1;var s=1;var g=2;var v=(function(){function B(D,C){this.size=((D+7)|0)&-8;if(typeof C==="undefined"){this.buffer=new ArrayBuffer(this.size)}else{this.buffer=C;this.size=C.length}this.u8=new Uint8Array(this.buffer);this.i32=new Int32Array(this.buffer);this.f32=new Float32Array(this.buffer);this.f64=new Float64Array(this.buffer)}return B})();var q=(function(){function B(F,D,E,C){this.type=y(E)|0;this.channel=k(E)|0;this.cols=F|0;this.rows=D|0;if(typeof C==="undefined"){this.allocate()}else{this.buffer=C;this.data=this.type&m?this.buffer.u8:(this.type&i?this.buffer.i32:(this.type&h?this.buffer.f32:this.buffer.f64))}}B.prototype.allocate=function(){delete this.data;delete this.buffer;this.buffer=new v((this.cols*c(this.type)*this.channel)*this.rows);this.data=this.type&m?this.buffer.u8:(this.type&i?this.buffer.i32:(this.type&h?this.buffer.f32:this.buffer.f64))};B.prototype.copy_to=function(D){var C=D.data,G=this.data;var E=0,F=(this.cols*this.rows*this.channel)|0;for(;E<F-4;E+=4){C[E]=G[E];C[E+1]=G[E+1];C[E+2]=G[E+2];C[E+3]=G[E+3]}for(;E<F;++E){C[E]=G[E]}};B.prototype.resize=function(F,D,C){if(typeof C==="undefined"){C=this.channel}var E=(F*c(this.type)*C)*D;if(E>this.buffer.size){this.cols=F;this.rows=D;this.channel=C;this.allocate()}else{this.cols=F;this.rows=D;this.channel=C}};return B})();var t=(function(){function B(C){this.levels=C|0;this.data=new Array(C);this.pyrdown=jsfeat.imgproc.pyrdown}B.prototype.allocate=function(C,E,F){var D=this.levels;while(--D>=0){this.data[D]=new q(C>>D,E>>D,F)}};B.prototype.build=function(F,E){if(typeof E==="undefined"){E=true}var H=2,D=F,C=this.data[0];if(!E){var G=F.cols*F.rows;while(--G>=0){C.data[G]=F.data[G]}}C=this.data[1];this.pyrdown(D,C);for(;H<this.levels;++H){D=C;C=this.data[H];this.pyrdown(D,C)}};return B})();var j=(function(){function B(C,G,E,F,D){if(typeof C==="undefined"){C=0}if(typeof G==="undefined"){G=0}if(typeof E==="undefined"){E=0}if(typeof F==="undefined"){F=0}if(typeof D==="undefined"){D=-1}this.x=C;this.y=G;this.score=E;this.level=F;this.angle=D}return B})();r.U8_t=m;r.S32_t=i;r.F32_t=h;r.S64_t=x;r.F64_t=w;r.C1_t=A;r.C2_t=n;r.C3_t=b;r.C4_t=p;r.U8C1_t=m|A;r.U8C3_t=m|b;r.U8C4_t=m|p;r.F32C1_t=h|A;r.F32C2_t=h|n;r.S32C1_t=i|A;r.S32C2_t=i|n;r.EPSILON=o;r.FLT_MIN=l;r.COLOR_RGBA2GRAY=a;r.COLOR_RGB2GRAY=f;r.COLOR_BGRA2GRAY=e;r.COLOR_BGR2GRAY=u;r.BOX_BLUR_NOSCALE=d;r.SVD_U_T=s;r.SVD_V_T=g;r.get_data_type=y;r.get_channel=k;r.get_data_type_size=c;r.data_t=v;r.matrix_t=q;r.pyramid_t=t;r.keypoint_t=j})(jsfeat);(function(b){var a=(function(){var f=(function(){function g(h){this.next=null;this.data=new jsfeat.data_t(h);this.size=this.data.size;this.buffer=this.data.buffer;this.u8=this.data.u8;this.i32=this.data.i32;this.f32=this.data.f32;this.f64=this.data.f64}g.prototype.resize=function(h){delete this.data;this.data=new jsfeat.data_t(h);this.size=this.data.size;this.buffer=this.data.buffer;this.u8=this.data.u8;this.i32=this.data.i32;this.f32=this.data.f32;this.f64=this.data.f64};return g})();var e,c;var d=0;return{allocate:function(g,k){e=c=new f(k);for(var h=0;h<g;++h){var j=new f(k);c=c.next=j;d++}},get_buffer:function(g){var h=e;e=e.next;d--;if(g>h.size){h.resize(g)}return h},put_buffer:function(g){c=c.next=g;d++}}})();b.cache=a;a.allocate(30,640*4)})(jsfeat);(function(b){var a=(function(){var c=new Int32Array(48*2);return{get_gaussian_kernel:function(p,m,e,l){var f=0,j=0,o=0,n=0,d=0;var g=0;var h=jsfeat.cache.get_buffer(p<<2);var k=h.f32;if((p&1)==1&&p<=7&&m<=0){switch(p>>1){case 0:k[0]=1;g=1;break;case 1:k[0]=0.25,k[1]=0.5,k[2]=0.25;g=0.25+0.5+0.25;break;case 2:k[0]=0.0625,k[1]=0.25,k[2]=0.375,k[3]=0.25,k[4]=0.0625;g=0.0625+0.25+0.375+0.25+0.0625;break;
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