@dcm/nifti-image-loader/dist/cornerstoneNIFTIImageLoader.min.js

Neuroimaging Informatics Technology Initiative (NIfTI) Image Loader for the Cornerstone library.

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 * @license  MIT
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e,i,r,a;return!(t.byteLength<n.NIFTI1.STANDARD_HEADER_SIZE)&&((e=new DataView(t))&&(i=e.getUint8(n.NIFTI1.MAGIC_NUMBER_LOCATION)),r=e.getUint8(n.NIFTI1.MAGIC_NUMBER_LOCATION+1),a=e.getUint8(n.NIFTI1.MAGIC_NUMBER_LOCATION+2),!(i!==n.NIFTI1.MAGIC_NUMBER[0]||r!==n.NIFTI1.MAGIC_NUMBER[1]||a!==n.NIFTI1.MAGIC_NUMBER[2]))},n.isNIFTI2=function(t){var e,i,r,a;return!(t.byteLength<n.NIFTI1.STANDARD_HEADER_SIZE)&&(i=(e=new DataView(t)).getUint8(n.NIFTI2.MAGIC_NUMBER_LOCATION),r=e.getUint8(n.NIFTI2.MAGIC_NUMBER_LOCATION+1),a=e.getUint8(n.NIFTI2.MAGIC_NUMBER_LOCATION+2),!(i!==n.NIFTI2.MAGIC_NUMBER[0]||r!==n.NIFTI2.MAGIC_NUMBER[1]||a!==n.NIFTI2.MAGIC_NUMBER[2]))},n.isNIFTI=function(t){return n.isNIFTI1(t)||n.isNIFTI2(t)},n.isCompressed=function(t){var e,i,r;if(t){if(i=(e=new DataView(t)).getUint8(0),r=e.getUint8(1),i===n.Utils.GUNZIP_MAGIC_COOKIE1)return!0;if(r===n.Utils.GUNZIP_MAGIC_COOKIE2)return!0}return!1},n.decompress=function(t){return r.inflate(t).buffer},n.readHeader=function(t){var e=null;return n.isCompressed(t)&&(t=n.decompress(t)),n.isNIFTI1(t)?e=new n.NIFTI1:n.isNIFTI2(t)&&(e=new n.NIFTI2),e?e.readHeader(t):console.error("That file does not appear to be NIFTI!"),e},n.hasExtension=function(t){return 0!=t.extensionFlag[0]},n.readImage=function(t,e){var i=t.vox_offset,n=1,r=1;t.dims[4]&&(n=t.dims[4]),t.dims[5]&&(r=t.dims[5]);var a=t.dims[1]*t.dims[2]*t.dims[3]*n*r*(t.numBitsPerVoxel/8);return e.slice(i,i+a)},n.readExtension=function(t,e){var i=t.getExtensionLocation(),n=t.extensionSize;return e.slice(i,i+n)},n.readExtensionData=function(t,e){var i=t.getExtensionLocation(),n=t.extensionSize;return e.slice(i+8,i+n-8)};t.exports&&(t.exports=n)},6714:(t,e,i)=>{"use strict";var n=n||{};n.Utils=n.Utils||i(4731),n.NIFTI1=n.NIFTI1||function(){this.littleEndian=!1,this.dim_info=0,this.dims=[],this.intent_p1=0,this.intent_p2=0,this.intent_p3=0,this.intent_code=0,this.datatypeCode=0,this.numBitsPerVoxel=0,this.slice_start=0,this.slice_end=0,this.slice_code=0,this.pixDims=[],this.vox_offset=0,this.scl_slope=1,this.scl_inter=0,this.xyzt_units=0,this.cal_max=0,this.cal_min=0,this.slice_duration=0,this.toffset=0,this.description="",this.aux_file="",this.intent_name="",this.qform_code=0,this.sform_code=0,this.quatern_b=0,this.quatern_c=0,this.quatern_d=0,this.qoffset_x=0,this.qoffset_y=0,this.qoffset_z=0,this.affine=[[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1]],this.magic=0,this.isHDR=!1,this.extensionFlag=[0,0,0,0],this.extensionSize=0,this.extensionCode=0},n.NIFTI1.TYPE_NONE=0,n.NIFTI1.TYPE_BINARY=1,n.NIFTI1.TYPE_UINT8=2,n.NIFTI1.TYPE_INT16=4,n.NIFTI1.TYPE_INT32=8,n.NIFTI1.TYPE_FLOAT32=16,n.NIFTI1.TYPE_COMPLEX64=32,n.NIFTI1.TYPE_FLOAT64=64,n.NIFTI1.TYPE_RGB24=128,n.NIFTI1.TYPE_INT8=256,n.NIFTI1.TYPE_UINT16=512,n.NIFTI1.TYPE_UINT32=768,n.NIFTI1.TYPE_INT64=1024,n.NIFTI1.TYPE_UINT64=1280,n.NIFTI1.TYPE_FLOAT128=1536,n.NIFTI1.TYPE_COMPLEX128=1792,n.NIFTI1.TYPE_COMPLEX256=2048,n.NIFTI1.XFORM_UNKNOWN=0,n.NIFTI1.XFORM_SCANNER_ANAT=1,n.NIFTI1.XFORM_ALIGNED_ANAT=2,n.NIFTI1.XFORM_TALAIRACH=3,n.NIFTI1.XFORM_MNI_152=4,n.NIFTI1.SPATIAL_UNITS_MASK=7,n.NIFTI1.TEMPORAL_UNITS_MASK=56,n.NIFTI1.UNITS_UNKNOWN=0,n.NIFTI1.UNITS_METER=1,n.NIFTI1.UNITS_MM=2,n.NIFTI1.UNITS_MICRON=3,n.NIFTI1.UNITS_SEC=8,n.NIFTI1.UNITS_MSEC=16,n.NIFTI1.UNITS_USEC=24,n.NIFTI1.UNITS_HZ=32,n.NIFTI1.UNITS_PPM=40,n.NIFTI1.UNITS_RADS=48,n.NIFTI1.MAGIC_COOKIE=348,n.NIFTI1.STANDARD_HEADER_SIZE=348,n.NIFTI1.MAGIC_NUMBER_LOCATION=344,n.NIFTI1.MAGIC_NUMBER=[110,43,49],n.NIFTI1.MAGIC_NUMBER2=[110,105,49],n.NIFTI1.EXTENSION_HEADER_SIZE=8,n.NIFTI1.prototype.readHeader=function(t){var e,i,r,a,s=new DataView(t),o=n.Utils.getIntAt(s,0,this.littleEndian);if(o!==n.NIFTI1.MAGIC_COOKIE&&(this.littleEndian=!0,o=n.Utils.getIntAt(s,0,this.littleEndian)),o!==n.NIFTI1.MAGIC_COOKIE)throw new Error("This does not appear to be a NIFTI file!");for(this.dim_info=n.Utils.getByteAt(s,39),e=0;e<8;e+=1)a=40+2*e,this.dims[e]=n.Utils.getShortAt(s,a,this.littleEndian);for(this.intent_p1=n.Utils.getFloatAt(s,56,this.littleEndian),this.intent_p2=n.Utils.getFloatAt(s,60,this.littleEndian),this.intent_p3=n.Utils.getFloatAt(s,64,this.littleEndian),this.intent_code=n.Utils.getShortAt(s,68,this.littleEndian),this.datatypeCode=n.Utils.getShortAt(s,70,this.littleEndian),this.numBitsPerVoxel=n.Utils.getShortAt(s,72,this.littleEndian),this.slice_start=n.Utils.getShortAt(s,74,this.littleEndian),e=0;e<8;e+=1)a=76+4*e,this.pixDims[e]=n.Utils.getFloatAt(s,a,this.littleEndian);for(this.vox_offset=n.Utils.getFloatAt(s,108,this.littleEndian),this.scl_slope=n.Utils.getFloatAt(s,112,this.littleEndian),this.scl_inter=n.Utils.getFloatAt(s,116,this.littleEndian),this.slice_end=n.Utils.getShortAt(s,120,this.littleEndian),this.slice_code=n.Utils.getByteAt(s,122),this.xyzt_units=n.Utils.getByteAt(s,123),this.cal_max=n.Utils.getFloatAt(s,124,this.littleEndian),this.cal_min=n.Utils.getFloatAt(s,128,this.littleEndian),this.slice_duration=n.Utils.getFloatAt(s,132,this.littleEndian),this.toffset=n.Utils.getFloatAt(s,136,this.littleEndian),this.description=n.Utils.getStringAt(s,148,228),this.aux_file=n.Utils.getStringAt(s,228,252),this.qform_code=n.Utils.getShortAt(s,252,this.littleEndian),this.sform_code=n.Utils.getShortAt(s,254,this.littleEndian),this.quatern_b=n.Utils.getFloatAt(s,256,this.littleEndian),this.quatern_c=n.Utils.getFloatAt(s,260,this.littleEndian),this.quatern_d=n.Utils.getFloatAt(s,264,this.littleEndian),this.qoffset_x=n.Utils.getFloatAt(s,268,this.littleEndian),this.qoffset_y=n.Utils.getFloatAt(s,272,this.littleEndian),this.qoffset_z=n.Utils.getFloatAt(s,276,this.littleEndian),i=0;i<3;i+=1)for(r=0;r<4;r+=1)a=280+4*(4*i+r),this.affine[i][r]=n.Utils.getFloatAt(s,a,this.littleEndian);this.affine[3][0]=0,this.affine[3][1]=0,this.affine[3][2]=0,this.affine[3][3]=1,this.intent_name=n.Utils.getStringAt(s,328,344),this.magic=n.Utils.getStringAt(s,344,348),this.isHDR=this.magic===n.NIFTI1.MAGIC_NUMBER2,s.byteLength>n.NIFTI1.MAGIC_COOKIE&&(this.extensionFlag[0]=n.Utils.getByteAt(s,348),this.extensionFlag[1]=n.Utils.getByteAt(s,349),this.extensionFlag[2]=n.Utils.getByteAt(s,350),this.extensionFlag[3]=n.Utils.getByteAt(s,351),this.extensionFlag[0]&&(this.extensionSize=this.getExtensionSize(s),this.extensionCode=this.getExtensionCode(s)))},n.NIFTI1.prototype.toFormattedString=function(){var t=n.Utils.formatNumber,e="";return e+="Dim Info = "+this.dim_info+"\n",e+="Image Dimensions (1-8): "+this.dims[0]+", "+this.dims[1]+", "+this.dims[2]+", "+this.dims[3]+", "+this.dims[4]+", "+this.dims[5]+", "+this.dims[6]+", "+this.dims[7]+"\n",e+="Intent Parameters (1-3): "+this.intent_p1+", "+this.intent_p2+", "+this.intent_p3+"\n",e+="Intent Code = "+this.intent_code+"\n",e+="Datatype = "+this.datatypeCode+" ("+this.getDatatypeCodeString(this.datatypeCode)+")\n",e+="Bits Per Voxel = "+this.numBitsPerVoxel+"\n",e+="Slice Start = "+this.slice_start+"\n",e+="Voxel Dimensions (1-8): "+t(this.pixDims[0])+", "+t(this.pixDims[1])+", "+t(this.pixDims[2])+", "+t(this.pixDims[3])+", "+t(this.pixDims[4])+", "+t(this.pixDims[5])+", "+t(this.pixDims[6])+", "+t(this.pixDims[7])+"\n",e+="Image Offset = "+this.vox_offset+"\n",e+="Data Scale:  Slope = "+t(this.scl_slope)+"  Intercept = "+t(this.scl_inter)+"\n",e+="Slice End = "+this.slice_end+"\n",e+="Slice Code = "+this.slice_code+"\n",e+="Units Code = "+this.xyzt_units+" ("+this.getUnitsCodeString(n.NIFTI1.SPATIAL_UNITS_MASK&this.xyzt_units)+", "+this.getUnitsCodeString(n.NIFTI1.TEMPORAL_UNITS_MASK&this.xyzt_units)+")\n",e+="Display Range:  Max = "+t(this.cal_max)+"  Min = "+t(this.cal_min)+"\n",e+="Slice Duration = "+this.slice_duration+"\n",e+="Time Axis Shift = "+this.toffset+"\n",e+='Description: "'+this.description+'"\n',e+='Auxiliary File: "'+this.aux_file+'"\n',e+="Q-Form Code = "+this.qform_code+" ("+this.getTransformCodeString(this.qform_code)+")\n",e+="S-Form Code = "+this.sform_code+" ("+this.getTransformCodeString(this.sform_code)+")\n",e+="Quaternion Parameters:  b = "+t(this.quatern_b)+"  c = "+t(this.quatern_c)+"  d = "+t(this.quatern_d)+"\n",e+="Quaternion Offsets:  x = "+this.qoffset_x+"  y = "+this.qoffset_y+"  z = "+this.qoffset_z+"\n",e+="S-Form Parameters X: "+t(this.affine[0][0])+", "+t(this.affine[0][1])+", "+t(this.affine[0][2])+", "+t(this.affine[0][3])+"\n",e+="S-Form Parameters Y: "+t(this.affine[1][0])+", "+t(this.affine[1][1])+", "+t(this.affine[1][2])+", "+t(this.affine[1][3])+"\n",e+="S-Form Parameters Z: "+t(this.affine[2][0])+", "+t(this.affine[2][1])+", "+t(this.affine[2][2])+", "+t(this.affine[2][3])+"\n",e+='Intent Name: "'+this.intent_name+'"\n',this.extensionFlag[0]&&(e+="Extension: Size = "+this.extensionSize+"  Code = "+this.extensionCode+"\n"),e},n.NIFTI1.prototype.getDatatypeCodeString=function(t){return t===n.NIFTI1.TYPE_UINT8?"1-Byte Unsigned Integer":t===n.NIFTI1.TYPE_INT16?"2-Byte Signed Integer":t===n.NIFTI1.TYPE_INT32?"4-Byte Signed Integer":t===n.NIFTI1.TYPE_FLOAT32?"4-Byte Float":t===n.NIFTI1.TYPE_FLOAT64?"8-Byte Float":t===n.NIFTI1.TYPE_RGB24?"RGB":t===n.NIFTI1.TYPE_INT8?"1-Byte Signed Integer":t===n.NIFTI1.TYPE_UINT16?"2-Byte Unsigned Integer":t===n.NIFTI1.TYPE_UINT32?"4-Byte Unsigned Integer":t===n.NIFTI1.TYPE_INT64?"8-Byte Signed Integer":t===n.NIFTI1.TYPE_UINT64?"8-Byte Unsigned Integer":"Unknown"},n.NIFTI1.prototype.getTransformCodeString=function(t){return t===n.NIFTI1.XFORM_SCANNER_ANAT?"Scanner":t===n.NIFTI1.XFORM_ALIGNED_ANAT?"Aligned":t===n.NIFTI1.XFORM_TALAIRACH?"Talairach":t===n.NIFTI1.XFORM_MNI_152?"MNI":"Unknown"},n.NIFTI1.prototype.getUnitsCodeString=function(t){return t===n.NIFTI1.UNITS_METER?"Meters":t===n.NIFTI1.UNITS_MM?"Millimeters":t===n.NIFTI1.UNITS_MICRON?"Microns":t===n.NIFTI1.UNITS_SEC?"Seconds":t===n.NIFTI1.UNITS_MSEC?"Milliseconds":t===n.NIFTI1.UNITS_USEC?"Microseconds":t===n.NIFTI1.UNITS_HZ?"Hz":t===n.NIFTI1.UNITS_PPM?"PPM":t===n.NIFTI1.UNITS_RADS?"Rads":"Unknown"},n.NIFTI1.prototype.getQformMat=function(){return this.convertNiftiQFormToNiftiSForm(this.quatern_b,this.quatern_c,this.quatern_d,this.qoffset_x,this.qoffset_y,this.qoffset_z,this.pixDims[1],this.pixDims[2],this.pixDims[3],this.pixDims[0])},n.NIFTI1.prototype.convertNiftiQFormToNiftiSForm=function(t,e,i,n,r,a,s,o,l,h){var d,u,f,c,_=[[0,0,0,0],[0,0,0,0],[0,0,0,0],[0,0,0,0]],p=t,m=e,g=i;return _[3][0]=_[3][1]=_[3][2]=0,_[3][3]=1,(d=1-(p*p+m*m+g*g))<1e-7?(p*=d=1/Math.sqrt(p*p+m*m+g*g),m*=d,g*=d,d=0):d=Math.sqrt(d),u=s>0?s:1,f=o>0?o:1,c=l>0?l:1,h<0&&(c=-c),_[0][0]=(d*d+p*p-m*m-g*g)*u,_[0][1]=2*(p*m-d*g)*f,_[0][2]=2*(p*g+d*m)*c,_[1][0]=2*(p*m+d*g)*u,_[1][1]=(d*d+m*m-p*p-g*g)*f,_[1][2]=2*(m*g-d*p)*c,_[2][0]=2*(p*g-d*m)*u,_[2][1]=2*(m*g+d*p)*f,_[2][2]=(d*d+g*g-m*m-p*p)*c,_[0][3]=n,_[1][3]=r,_[2][3]=a,_},n.NIFTI1.prototype.convertNiftiSFormToNEMA=function(t){var e,i,n,r,a,s,o,l,h,d,u,f,c,_,p,m,g,b,w,v,y,I,x,T,k,E,A,S,N,F,U,D,R;if(_=0,E=[[0,0,0],[0,0,0],[0,0,0]],A=[[0,0,0],[0,0,0],[0,0,0]],e=t[0][0],i=t[0][1],n=t[0][2],r=t[1][0],a=t[1][1],s=t[1][2],o=t[2][0],l=t[2][1],h=t[2][2],0===(d=Math.sqrt(e*e+r*r+o*o)))return null;if(e/=d,r/=d,o/=d,0===(d=Math.sqrt(i*i+a*a+l*l)))return null;if(d=e*(i/=d)+r*(a/=d)+o*(l/=d),Math.abs(d)>1e-4){if(i-=d*e,a-=d*r,l-=d*o,0===(d=Math.sqrt(i*i+a*a+l*l)))return null;i/=d,a/=d,l/=d}if(0===(d=Math.sqrt(n*n+s*s+h*h))?(n=r*l-o*a,s=o*i-l*e,h=e*a-r*i):(n/=d,s/=d,h/=d),d=e*n+r*s+o*h,Math.abs(d)>1e-4){if(n-=d*e,s-=d*r,h-=d*o,0===(d=Math.sqrt(n*n+s*s+h*h)))return null;n/=d,s/=d,h/=d}if(d=i*n+a*s+l*h,Math.abs(d)>1e-4){if(n-=d*i,s-=d*a,h-=d*l,0===(d=Math.sqrt(n*n+s*s+h*h)))return null;n/=d,s/=d,h/=d}if(E[0][0]=e,E[0][1]=i,E[0][2]=n,E[1][0]=r,E[1][1]=a,E[1][2]=s,E[2][0]=o,E[2][1]=l,E[2][2]=h,0===(u=this.nifti_mat33_determ(E)))return null;for(k=-666,b=y=I=x=1,w=2,v=3,f=1;f<=3;f+=1)for(c=1;c<=3;c+=1)if(f!==c)for(_=1;_<=3;_+=1)if(f!==_&&c!==_)for(A[0][0]=A[0][1]=A[0][2]=A[1][0]=A[1][1]=A[1][2]=A[2][0]=A[2][1]=A[2][2]=0,p=-1;p<=1;p+=2)for(m=-1;m<=1;m+=2)for(g=-1;g<=1;g+=2)A[0][f-1]=p,A[1][c-1]=m,A[2][_-1]=g,this.nifti_mat33_determ(A)*u>0&&(d=(T=this.nifti_mat33_mul(A,E))[0][0]+T[1][1]+T[2][2])>k&&(k=d,b=f,w=c,v=_,y=p,I=m,x=g);switch(S=N=F=U=D=R=0,b*y){case 1:S="X",U="+";break;case-1:S="X",U="-";break;case 2:S="Y",U="+";break;case-2:S="Y",U="-";break;case 3:S="Z",U="+";break;case-3:S="Z",U="-"}switch(w*I){case 1:N="X",D="+";break;case-1:N="X",D="-";break;case 2:N="Y",D="+";break;case-2:N="Y",D="-";break;case 3:N="Z",D="+";break;case-3:N="Z",D="-"}switch(v*x){case 1:F="X",R="+";break;case-1:F="X",R="-";break;case 2:F="Y",R="+";break;case-2:F="Y",R="-";break;case 3:F="Z",R="+";break;case-3:F="Z",R="-"}return S+N+F+U+D+R},n.NIFTI1.prototype.nifti_mat33_mul=function(t,e){var i,n,r=[[0,0,0],[0,0,0],[0,0,0]];for(i=0;i<3;i+=1)for(n=0;n<3;n+=1)r[i][n]=t[i][0]*e[0][n]+t[i][1]*e[1][n]+t[i][2]*e[2][n];return r},n.NIFTI1.prototype.nifti_mat33_determ=function(t){var e,i,n,r,a,s,o,l,h;return e=t[0][0],i=t[0][1],n=t[0][2],r=t[1][0],a=t[1][1],s=t[1][2],o=t[2][0],l=t[2][1],e*a*(h=t[2][2])-e*l*s-r*i*h+r*l*n+o*i*s-o*a*n},n.NIFTI1.prototype.getExtensionLocation=function(){return n.NIFTI1.MAGIC_COOKIE+4},n.NIFTI1.prototype.getExtensionSize=function(t){return n.Utils.getIntAt(t,this.getExtensionLocation(),this.littleEndian)},n.NIFTI1.prototype.getExtensionCode=function(t){return n.Utils.getIntAt(t,this.getExtensionLocation()+4,this.littleEndian)};t.exports&&(t.exports=n.NIFTI1)},8829:(t,e,i)=>{"use strict";var n=n||{};n.Utils=n.Utils||i(4731),n.NIFTI1=n.NIFTI1||i(6714),n.NIFTI2=n.NIFTI2||function(){this.littleEndian=!1,this.dim_info=0,this.dims=[],this.intent_p1=0,this.intent_p2=0,this.intent_p3=0,this.intent_code=0,this.datatypeCode=0,this.numBitsPerVoxel=0,this.slice_start=0,this.slice_end=0,this.slice_code=0,this.pixDims=[],this.vox_offset=0,this.scl_slope=1,this.scl_inter=0,this.xyzt_units=0,this.cal_max=0,this.cal_min=0,this.slice_duration=0,this.toffset=0,this.description="",this.aux_file="",this.intent_name="",this.qform_code=0,this.sform_code=0,this.quatern_b=0,this.quatern_c=0,this.quatern_d=0,this.qoffset_x=0,this.qoffset_y=0,this.qoffset_z=0,this.affine=[[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1]],this.magic=0,this.extensionFlag=[0,0,0,0]},n.NIFTI2.MAGIC_COOKIE=540,n.NIFTI2.MAGIC_NUMBER_LOCATION=4,n.NIFTI2.MAGIC_NUMBER=[110,43,50,0,13,10,26,10],n.NIFTI2.prototype.readHeader=function(t){var e,i,r,a,s=new DataView(t),o=n.Utils.getIntAt(s,0,this.littleEndian);if(o!==n.NIFTI2.MAGIC_COOKIE&&(this.littleEndian=!0,o=n.Utils.getIntAt(s,0,this.littleEndian)),o!==n.NIFTI2.MAGIC_COOKIE)throw new Error("This does not appear to be a NIFTI file!");for(this.datatypeCode=n.Utils.getShortAt(s,12,this.littleEndian),this.numBitsPerVoxel=n.Utils.getShortAt(s,14,this.littleEndian),e=0;e<8;e+=1)a=16+8*e,this.dims[e]=n.Utils.getLongAt(s,a,this.littleEndian);for(this.intent_p1=n.Utils.getDoubleAt(s,80,this.littleEndian),this.intent_p2=n.Utils.getDoubleAt(s,88,this.littleEndian),this.intent_p3=n.Utils.getDoubleAt(s,96,this.littleEndian),e=0;e<8;e+=1)a=104+8*e,this.pixDims[e]=n.Utils.getDoubleAt(s,a,this.littleEndian);for(this.vox_offset=n.Utils.getLongAt(s,168,this.littleEndian),this.scl_slope=n.Utils.getDoubleAt(s,176,this.littleEndian),this.scl_inter=n.Utils.getDoubleAt(s,184,this.littleEndian),this.cal_max=n.Utils.getDoubleAt(s,192,this.littleEndian),this.cal_min=n.Utils.getDoubleAt(s,200,this.littleEndian),this.slice_duration=n.Utils.getDoubleAt(s,208,this.littleEndian),this.toffset=n.Utils.getDoubleAt(s,216,this.littleEndian),this.slice_start=n.Utils.getLongAt(s,224,this.littleEndian),this.slice_end=n.Utils.getLongAt(s,232,this.littleEndian),this.description=n.Utils.getStringAt(s,240,320),this.aux_file=n.Utils.getStringAt(s,320,344),this.qform_code=n.Utils.getIntAt(s,344,this.littleEndian),this.sform_code=n.Utils.getIntAt(s,348,this.littleEndian),this.quatern_b=n.Utils.getDoubleAt(s,352,this.littleEndian),this.quatern_c=n.Utils.getDoubleAt(s,360,this.littleEndian),this.quatern_d=n.Utils.getDoubleAt(s,368,this.littleEndian),this.qoffset_x=n.Utils.getDoubleAt(s,376,this.littleEndian),this.qoffset_y=n.Utils.getDoubleAt(s,384,this.littleEndian),this.qoffset_z=n.Utils.getDoubleAt(s,392,this.littleEndian),i=0;i<3;i+=1)for(r=0;r<4;r+=1)a=400+8*(4*i+r),this.affine[i][r]=n.Utils.getDoubleAt(s,a,this.littleEndian);this.affine[3][0]=0,this.affine[3][1]=0,this.affine[3][2]=0,this.affine[3][3]=1,this.slice_code=n.Utils.getIntAt(s,496,this.littleEndian),this.xyzt_units=n.Utils.getIntAt(s,500,this.littleEndian),this.intent_code=n.Utils.getIntAt(s,504,this.littleEndian),this.intent_name=n.Utils.getStringAt(s,508,524),this.dim_info=n.Utils.getByteAt(s,524),s.byteLength>n.NIFTI2.MAGIC_COOKIE&&(this.extensionFlag[0]=n.Utils.getByteAt(s,540),this.extensionFlag[1]=n.Utils.getByteAt(s,541),this.extensionFlag[2]=n.Utils.getByteAt(s,542),this.extensionFlag[3]=n.Utils.getByteAt(s,543),this.extensionFlag[0]&&(this.extensionSize=this.getExtensionSize(s),this.extensionCode=this.getExtensionCode(s)))},n.NIFTI2.prototype.toFormattedString=function(){var t=n.Utils.formatNumber,e="";return e+="Datatype = "+ +this.datatypeCode+" ("+this.getDatatypeCodeString(this.datatypeCode)+")\n",e+="Bits Per Voxel =  = "+this.numBitsPerVoxel+"\n",e+="Image Dimensions (1-8): "+this.dims[0]+", "+this.dims[1]+", "+this.dims[2]+", "+this.dims[3]+", "+this.dims[4]+", "+this.dims[5]+", "+this.dims[6]+", "+this.dims[7]+"\n",e+="Intent Parameters (1-3): "+this.intent_p1+", "+this.intent_p2+", "+this.intent_p3+"\n",e+="Voxel Dimensions (1-8): "+t(this.pixDims[0])+", "+t(this.pixDims[1])+", "+t(this.pixDims[2])+", "+t(this.pixDims[3])+", "+t(this.pixDims[4])+", "+t(this.pixDims[5])+", "+t(this.pixDims[6])+", "+t(this.pixDims[7])+"\n",e+="Image Offset = "+this.vox_offset+"\n",e+="Data Scale:  Slope = "+t(this.scl_slope)+"  Intercept = "+t(this.scl_inter)+"\n",e+="Display Range:  Max = "+t(this.cal_max)+"  Min = "+t(this.cal_min)+"\n",e+="Slice Duration = "+this.slice_duration+"\n",e+="Time Axis Shift = "+this.toffset+"\n",e+="Slice Start = "+this.slice_start+"\n",e+="Slice End = "+this.slice_end+"\n",e+='Description: "'+this.description+'"\n',e+='Auxiliary File: "'+this.aux_file+'"\n',e+="Q-Form Code = "+this.qform_code+" ("+this.getTransformCodeString(this.qform_code)+")\n",e+="S-Form Code = "+this.sform_code+" ("+this.getTransformCodeString(this.sform_code)+")\n",e+="Quaternion Parameters:  b = "+t(this.quatern_b)+"  c = "+t(this.quatern_c)+"  d = "+t(this.quatern_d)+"\n",e+="Quaternion Offsets:  x = "+this.qoffset_x+"  y = "+this.qoffset_y+"  z = "+this.qoffset_z+"\n",e+="S-Form Parameters X: "+t(this.affine[0][0])+", "+t(this.affine[0][1])+", "+t(this.affine[0][2])+", "+t(this.affine[0][3])+"\n",e+="S-Form Parameters Y: "+t(this.affine[1][0])+", "+t(this.affine[1][1])+", "+t(this.affine[1][2])+", "+t(this.affine[1][3])+"\n",e+="S-Form Parameters Z: "+t(this.affine[2][0])+", "+t(this.affine[2][1])+", "+t(this.affine[2][2])+", "+t(this.affine[2][3])+"\n",e+="Slice Code = "+this.slice_code+"\n",e+="Units Code = "+this.xyzt_units+" ("+this.getUnitsCodeString(n.NIFTI1.SPATIAL_UNITS_MASK&this.xyzt_units)+", "+this.getUnitsCodeString(n.NIFTI1.TEMPORAL_UNITS_MASK&this.xyzt_units)+")\n",e+="Intent Code = "+this.intent_code+"\n",e+='Intent Name: "'+this.intent_name+'"\n',e+="Dim Info = "+this.dim_info+"\n"},n.NIFTI2.prototype.getExtensionLocation=function(){return n.NIFTI2.MAGIC_COOKIE+4},n.NIFTI2.prototype.getExtensionSize=n.NIFTI1.prototype.getExtensionSize,n.NIFTI2.prototype.getExtensionCode=n.NIFTI1.prototype.getExtensionCode,n.NIFTI2.prototype.getDatatypeCodeString=n.NIFTI1.prototype.getDatatypeCodeString,n.NIFTI2.prototype.getTransformCodeString=n.NIFTI1.prototype.getTransformCodeString,n.NIFTI2.prototype.getUnitsCodeString=n.NIFTI1.prototype.getUnitsCodeString,n.NIFTI2.prototype.getQformMat=n.NIFTI1.prototype.getQformMat,n.NIFTI2.prototype.convertNiftiQFormToNiftiSForm=n.NIFTI1.prototype.convertNiftiQFormToNiftiSForm,n.NIFTI2.prototype.convertNiftiSFormToNEMA=n.NIFTI1.prototype.convertNiftiSFormToNEMA,n.NIFTI2.prototype.nifti_mat33_mul=n.NIFTI1.prototype.nifti_mat33_mul,n.NIFTI2.prototype.nifti_mat33_determ=n.NIFTI1.prototype.nifti_mat33_determ;t.exports&&(t.exports=n.NIFTI2)},4731:t=>{"use strict";var e=e||{};e.Utils=e.Utils||{},e.Utils.crcTable=null,e.Utils.GUNZIP_MAGIC_COOKIE1=31,e.Utils.GUNZIP_MAGIC_COOKIE2=139,e.Utils.getStringAt=function(t,e,i){var n,r,a="";for(n=e;n<i;n+=1)0!==(r=t.getUint8(n))&&(a+=String.fromCharCode(r));return a},e.Utils.getByteAt=function(t,e){return t.getInt8(e)},e.Utils.getShortAt=function(t,e,i){return t.getInt16(e,i)},e.Utils.getIntAt=function(t,e,i){return t.getInt32(e,i)},e.Utils.getFloatAt=function(t,e,i){return t.getFloat32(e,i)},e.Utils.getDoubleAt=function(t,e,i){return t.getFloat64(e,i)},e.Utils.getLongAt=function(t,i,n){var r,a=[],s=0;for(r=0;r<8;r+=1)a[r]=e.Utils.getByteAt(t,i+r,n);for(r=a.length-1;r>=0;r--)s=256*s+a[r];return s},e.Utils.toArrayBuffer=function(t){var e,i,n;for(e=new ArrayBuffer(t.length),i=new Uint8Array(e),n=0;n<t.length;n+=1)i[n]=t[n];return e},e.Utils.isString=function(t){return"string"==typeof t||t instanceof String},e.Utils.formatNumber=function(t,i){var n=0;return 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i=e.pending;i>t.avail_out&&(i=t.avail_out),0!==i&&(t.output.set(e.pending_buf.subarray(e.pending_out,e.pending_out+i),t.next_out),t.next_out+=i,e.pending_out+=i,t.total_out+=i,t.avail_out-=i,e.pending-=i,0===e.pending&&(e.pending_out=0))},L=(t,e)=>{a(t,t.block_start>=0?t.block_start:-1,t.strstart-t.block_start,e),t.block_start=t.strstart,z(t.strm)},B=(t,e)=>{t.pending_buf[t.pending++]=e},j=(t,e)=>{t.pending_buf[t.pending++]=e>>>8&255,t.pending_buf[t.pending++]=255&e},Z=(t,e,i,n)=>{let r=t.avail_in;return r>n&&(r=n),0===r?0:(t.avail_in-=r,e.set(t.input.subarray(t.next_in,t.next_in+r),i),1===t.state.wrap?t.adler=l(t.adler,e,r,i):2===t.state.wrap&&(t.adler=h(t.adler,e,r,i)),t.next_in+=r,t.total_in+=r,r)},q=(t,e)=>{let i,n,r=t.max_chain_length,a=t.strstart,s=t.prev_length,o=t.nice_match;const l=t.strstart>t.w_size-F?t.strstart-(t.w_size-F):0,h=t.window,d=t.w_mask,u=t.prev,f=t.strstart+N;let c=h[a+s-1],_=h[a+s];t.prev_length>=t.good_match&&(r>>=2),o>t.lookahead&&(o=t.lookahead);do{if(i=e,h[i+s]===_&&h[i+s-1]===c&&h[i]===h[a]&&h[++i]===h[a+1]){a+=2,i++;do{}while(h[++a]===h[++i]&&h[++a]===h[++i]&&h[++a]===h[++i]&&h[++a]===h[++i]&&h[++a]===h[++i]&&h[++a]===h[++i]&&h[++a]===h[++i]&&h[++a]===h[++i]&&a<f);if(n=N-(f-a),a=f-N,n>s){if(t.match_start=e,s=n,n>=o)break;c=h[a+s-1],_=h[a+s]}}}while((e=u[e&d])>l&&0!=--r);return s<=t.lookahead?s:t.lookahead},H=t=>{const e=t.w_size;let i,n,r,a,s;do{if(a=t.window_size-t.lookahead-t.strstart,t.strstart>=e+(e-F)){t.window.set(t.window.subarray(e,e+e),0),t.match_start-=e,t.strstart-=e,t.block_start-=e,n=t.hash_size,i=n;do{r=t.head[--i],t.head[i]=r>=e?r-e:0}while(--n);n=e,i=n;do{r=t.prev[--i],t.prev[i]=r>=e?r-e:0}while(--n);a+=e}if(0===t.strm.avail_in)break;if(n=Z(t.strm,t.window,t.strstart+t.lookahead,a),t.lookahead+=n,t.lookahead+t.insert>=3)for(s=t.strstart-t.insert,t.ins_h=t.window[s],t.ins_h=M(t,t.ins_h,t.window[s+1]);t.insert&&(t.ins_h=M(t,t.ins_h,t.window[s+3-1]),t.prev[s&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=s,s++,t.insert--,!(t.lookahead+t.insert<3)););}while(t.lookahead<F&&0!==t.strm.avail_in)},Y=(t,e)=>{let i,n;for(;;){if(t.lookahead<F){if(H(t),t.lookahead<F&&e===u)return 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i,n,r;for(;;){if(t.lookahead<F){if(H(t),t.lookahead<F&&e===u)return 1;if(0===t.lookahead)break}if(i=0,t.lookahead>=3&&(t.ins_h=M(t,t.ins_h,t.window[t.strstart+3-1]),i=t.prev[t.strstart&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=t.strstart),t.prev_length=t.match_length,t.prev_match=t.match_start,t.match_length=2,0!==i&&t.prev_length<t.max_lazy_match&&t.strstart-i<=t.w_size-F&&(t.match_length=q(t,i),t.match_le