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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 00 11 49 6d 61 67 65 53 | 74 61 74 69 73 74 69 63 |..ImageS|tatistic|
|00000010| 73 2e 63 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |s.c.....|........|
|00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000040| 00 54 45 58 54 43 57 49 | 45 01 00 00 00 00 00 00 |.TEXTCWI|E.......|
|00000050| 00 00 00 00 00 07 ae 00 | 00 01 9a ac 56 8e 09 ac |........|....V...|
|00000060| 56 8e 09 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |V.......|........|
|00000070| 00 00 00 00 00 00 00 00 | 00 00 81 81 ee d5 00 00 |........|........|
|00000080| 2f 2a 0d 49 6d 61 67 65 | 53 74 61 74 69 73 74 69 |/*.Image|Statisti|
|00000090| 63 73 2e 63 0d 0d 49 6d | 61 67 65 53 74 61 74 69 |cs.c..Im|ageStati|
|000000a0| 73 74 69 63 73 20 72 65 | 74 75 72 6e 73 20 6d 69 |stics re|turns mi|
|000000b0| 6e 2c 20 6d 61 78 2c 20 | 6d 65 61 6e 2c 20 61 6e |n, max, |mean, an|
|000000c0| 64 20 6d 65 61 6e 53 71 | 75 61 72 65 20 76 61 6c |d meanSq|uare val|
|000000d0| 75 65 73 20 6f 66 20 74 | 68 65 20 70 69 78 65 6c |ues of t|he pixel|
|000000e0| 73 20 69 6e 0d 74 68 65 | 20 73 75 70 70 6c 69 65 |s in.the| supplie|
|000000f0| 64 20 72 65 63 74 2c 20 | 61 66 74 65 72 20 63 6c |d rect, |after cl|
|00000100| 69 70 70 69 6e 67 20 77 | 69 74 68 20 74 68 65 20 |ipping w|ith the |
|00000110| 47 57 6f 72 6c 64 27 73 | 20 70 6f 72 74 52 65 63 |GWorld's| portRec|
|00000120| 74 2e 20 54 68 65 20 73 | 75 70 70 6c 69 65 64 0d |t. The s|upplied.|
|00000130| 72 65 63 74 20 69 73 20 | 72 65 70 6c 61 63 65 64 |rect is |replaced|
|00000140| 20 62 79 20 74 68 65 20 | 63 6c 69 70 70 65 64 20 | by the |clipped |
|00000150| 72 65 63 74 2e 0d 0d 49 | 6d 61 67 65 45 6e 65 72 |rect...I|mageEner|
|00000160| 67 79 20 72 65 74 75 72 | 6e 73 20 74 68 65 20 73 |gy retur|ns the s|
|00000170| 75 6d 6d 65 64 20 73 71 | 75 61 72 65 20 76 61 6c |ummed sq|uare val|
|00000180| 75 65 2c 20 6f 76 65 72 | 20 74 68 65 20 63 6c 69 |ue, over| the cli|
|00000190| 70 70 65 64 20 72 65 63 | 74 20 61 72 65 61 2c 20 |pped rec|t area, |
|000001a0| 6f 66 0d 74 68 65 20 70 | 69 78 65 6c 73 20 61 66 |of.the p|ixels af|
|000001b0| 74 65 72 20 73 75 62 74 | 72 61 63 74 69 6e 67 20 |ter subt|racting |
|000001c0| 74 68 65 20 73 75 70 70 | 6c 69 65 64 20 22 62 61 |the supp|lied "ba|
|000001d0| 63 6b 67 72 6f 75 6e 64 | 22 2e 0d 0d 48 49 53 54 |ckground|"...HIST|
|000001e0| 4f 52 59 3a 0d 31 30 2f | 32 37 2f 39 34 20 77 72 |ORY:.10/|27/94 wr|
|000001f0| 6f 74 65 20 69 74 0d 38 | 2f 31 35 2f 39 35 20 64 |ote it.8|/15/95 d|
|00000200| 67 70 20 63 68 61 6e 67 | 65 64 20 22 30 2e 30 2f |gp chang|ed "0.0/|
|00000210| 30 2e 30 22 20 74 6f 20 | 4e 41 4e 20 74 6f 20 77 |0.0" to |NAN to w|
|00000220| 6f 72 6b 20 61 72 6f 75 | 6e 64 20 62 75 67 20 69 |ork arou|nd bug i|
|00000230| 6e 20 53 79 6d 61 6e 74 | 65 63 20 43 2b 2b 20 72 |n Symant|ec C++ r|
|00000240| 65 70 6f 72 74 65 64 20 | 62 79 20 42 6f 73 63 6f |eported |by Bosco|
|00000250| 2e 0d 2a 2f 0d 23 69 6e | 63 6c 75 64 65 20 22 56 |..*/.#in|clude "V|
|00000260| 69 64 65 6f 54 6f 6f 6c | 62 6f 78 2e 68 22 0d 0d |ideoTool|box.h"..|
|00000270| 64 6f 75 62 6c 65 20 49 | 6d 61 67 65 45 6e 65 72 |double I|mageEner|
|00000280| 67 79 28 47 57 6f 72 6c | 64 50 74 72 20 77 6f 72 |gy(GWorl|dPtr wor|
|00000290| 6c 64 2c 52 65 63 74 20 | 2a 61 52 65 63 74 2c 64 |ld,Rect |*aRect,d|
|000002a0| 6f 75 62 6c 65 20 62 61 | 63 6b 67 72 6f 75 6e 64 |ouble ba|ckground|
|000002b0| 29 0d 7b 0d 09 64 6f 75 | 62 6c 65 20 6d 65 61 6e |).{..dou|ble mean|
|000002c0| 2c 6d 65 61 6e 53 71 75 | 61 72 65 2c 61 72 65 61 |,meanSqu|are,area|
|000002d0| 3b 0d 0d 09 49 6d 61 67 | 65 53 74 61 74 69 73 74 |;...Imag|eStatist|
|000002e0| 69 63 73 28 77 6f 72 6c | 64 2c 61 52 65 63 74 2c |ics(worl|d,aRect,|
|000002f0| 4e 55 4c 4c 2c 4e 55 4c | 4c 2c 26 6d 65 61 6e 2c |NULL,NUL|L,&mean,|
|00000300| 26 6d 65 61 6e 53 71 75 | 61 72 65 29 3b 0d 09 61 |&meanSqu|are);..a|
|00000310| 72 65 61 3d 28 64 6f 75 | 62 6c 65 29 28 61 52 65 |rea=(dou|ble)(aRe|
|00000320| 63 74 2d 3e 72 69 67 68 | 74 2d 61 52 65 63 74 2d |ct->righ|t-aRect-|
|00000330| 3e 6c 65 66 74 29 2a 28 | 61 52 65 63 74 2d 3e 62 |>left)*(|aRect->b|
|00000340| 6f 74 74 6f 6d 2d 61 52 | 65 63 74 2d 3e 74 6f 70 |ottom-aR|ect->top|
|00000350| 29 3b 0d 09 72 65 74 75 | 72 6e 20 61 72 65 61 2a |);..retu|rn area*|
|00000360| 28 6d 65 61 6e 53 71 75 | 61 72 65 2d 32 2a 62 61 |(meanSqu|are-2*ba|
|00000370| 63 6b 67 72 6f 75 6e 64 | 2a 6d 65 61 6e 2b 62 61 |ckground|*mean+ba|
|00000380| 63 6b 67 72 6f 75 6e 64 | 2a 62 61 63 6b 67 72 6f |ckground|*backgro|
|00000390| 75 6e 64 29 3b 0d 7d 0d | 0d 76 6f 69 64 20 49 6d |und);.}.|.void Im|
|000003a0| 61 67 65 53 74 61 74 69 | 73 74 69 63 73 28 47 57 |ageStati|stics(GW|
|000003b0| 6f 72 6c 64 50 74 72 20 | 77 6f 72 6c 64 2c 52 65 |orldPtr |world,Re|
|000003c0| 63 74 20 2a 72 65 63 74 | 0d 09 2c 6c 6f 6e 67 20 |ct *rect|..,long |
|000003d0| 2a 6d 69 6e 50 74 72 2c | 6c 6f 6e 67 20 2a 6d 61 |*minPtr,|long *ma|
|000003e0| 78 50 74 72 2c 64 6f 75 | 62 6c 65 20 2a 6d 65 61 |xPtr,dou|ble *mea|
|000003f0| 6e 50 74 72 2c 64 6f 75 | 62 6c 65 20 2a 6d 65 61 |nPtr,dou|ble *mea|
|00000400| 6e 53 71 75 61 72 65 50 | 74 72 29 0d 7b 0d 09 72 |nSquareP|tr).{..r|
|00000410| 65 67 69 73 74 65 72 20 | 6c 6f 6e 67 20 70 69 78 |egister |long pix|
|00000420| 2c 70 69 78 4d 61 78 2c | 70 69 78 4d 69 6e 2c 6d |,pixMax,|pixMin,m|
|00000430| 65 61 6e 4c 2c 6d 65 61 | 6e 53 71 75 61 72 65 4c |eanL,mea|nSquareL|
|00000440| 3b 0d 09 72 65 67 69 73 | 74 65 72 20 64 6f 75 62 |;..regis|ter doub|
|00000450| 6c 65 20 6d 65 61 6e 2c | 6d 65 61 6e 53 71 75 61 |le mean,|meanSqua|
|00000460| 72 65 3b 0d 09 64 6f 75 | 62 6c 65 20 61 72 65 61 |re;..dou|ble area|
|00000470| 3b 0d 09 69 6e 74 20 77 | 69 64 74 68 3b 0d 09 72 |;..int w|idth;..r|
|00000480| 65 67 69 73 74 65 72 20 | 69 6e 74 20 69 2c 6a 3b |egister |int i,j;|
|00000490| 0d 20 20 20 20 69 6e 74 | 20 65 72 72 6f 72 3d 30 |.    int| error=0|
|000004a0| 3b 0d 09 75 6e 73 69 67 | 6e 65 64 20 6c 6f 6e 67 |;..unsig|ned long|
|000004b0| 20 70 69 78 65 6c 73 5b | 31 30 32 34 5d 3b 0d 0d | pixels[|1024];..|
|000004c0| 09 61 73 73 65 72 74 28 | 53 74 61 63 6b 53 70 61 |.assert(|StackSpa|
|000004d0| 63 65 28 29 3e 34 30 30 | 30 29 3b 0d 09 53 65 63 |ce()>400|0);..Sec|
|000004e0| 74 52 65 63 74 28 72 65 | 63 74 2c 26 77 6f 72 6c |tRect(re|ct,&worl|
|000004f0| 64 2d 3e 70 6f 72 74 52 | 65 63 74 2c 72 65 63 74 |d->portR|ect,rect|
|00000500| 29 3b 0d 09 69 66 28 45 | 6d 70 74 79 52 65 63 74 |);..if(E|mptyRect|
|00000510| 28 72 65 63 74 29 29 7b | 0d 09 09 6d 65 61 6e 3d |(rect)){|...mean=|
|00000520| 6d 65 61 6e 53 71 75 61 | 72 65 3d 4e 41 4e 3b 0d |meanSqua|re=NAN;.|
|00000530| 09 09 70 69 78 4d 69 6e | 3d 70 69 78 4d 61 78 3d |..pixMin|=pixMax=|
|00000540| 30 3b 0d 09 7d 65 6c 73 | 65 7b 0d 09 09 77 69 64 |0;..}els|e{...wid|
|00000550| 74 68 3d 72 65 63 74 2d | 3e 72 69 67 68 74 2d 72 |th=rect-|>right-r|
|00000560| 65 63 74 2d 3e 6c 65 66 | 74 3b 0d 09 09 61 73 73 |ect->lef|t;...ass|
|00000570| 65 72 74 28 77 69 64 74 | 68 3c 3d 73 69 7a 65 6f |ert(widt|h<=sizeo|
|00000580| 66 28 70 69 78 65 6c 73 | 29 2f 73 69 7a 65 6f 66 |f(pixels|)/sizeof|
|00000590| 28 2a 70 69 78 65 6c 73 | 29 29 3b 0d 09 09 6d 65 |(*pixels|));...me|
|000005a0| 61 6e 3d 6d 65 61 6e 53 | 71 75 61 72 65 3d 30 3b |an=meanS|quare=0;|
|000005b0| 0d 09 09 70 69 78 4d 69 | 6e 3d 4c 4f 4e 47 5f 4d |...pixMi|n=LONG_M|
|000005c0| 41 58 3b 0d 09 09 70 69 | 78 4d 61 78 3d 4c 4f 4e |AX;...pi|xMax=LON|
|000005d0| 47 5f 4d 49 4e 3b 0d 09 | 09 66 6f 72 28 6a 3d 72 |G_MIN;..|.for(j=r|
|000005e0| 65 63 74 2d 3e 74 6f 70 | 3b 6a 3c 72 65 63 74 2d |ect->top|;j<rect-|
|000005f0| 3e 62 6f 74 74 6f 6d 3b | 6a 2b 2b 29 7b 0d 09 09 |>bottom;|j++){...|
|00000600| 09 47 65 74 57 69 6e 64 | 6f 77 50 69 78 65 6c 73 |.GetWind|owPixels|
|00000610| 51 75 69 63 6b 6c 79 28 | 28 57 69 6e 64 6f 77 50 |Quickly(|(WindowP|
|00000620| 74 72 29 77 6f 72 6c 64 | 2c 72 65 63 74 2d 3e 6c |tr)world|,rect->l|
|00000630| 65 66 74 2c 6a 2c 70 69 | 78 65 6c 73 2c 77 69 64 |eft,j,pi|xels,wid|
|00000640| 74 68 29 3b 0d 09 09 09 | 6d 65 61 6e 4c 3d 30 3b |th);....|meanL=0;|
|00000650| 0d 09 09 09 6d 65 61 6e | 53 71 75 61 72 65 4c 3d |....mean|SquareL=|
|00000660| 30 3b 0d 09 09 09 66 6f | 72 28 69 3d 77 69 64 74 |0;....fo|r(i=widt|
|00000670| 68 2d 31 3b 69 3e 3d 30 | 3b 69 2d 2d 29 7b 0d 09 |h-1;i>=0|;i--){..|
|00000680| 09 09 09 70 69 78 3d 70 | 69 78 65 6c 73 5b 69 5d |...pix=p|ixels[i]|
|00000690| 3b 0d 09 09 09 09 69 66 | 28 70 69 78 3c 70 69 78 |;.....if|(pix<pix|
|000006a0| 4d 69 6e 29 70 69 78 4d | 69 6e 3d 70 69 78 3b 0d |Min)pixM|in=pix;.|
|000006b0| 09 09 09 09 69 66 28 70 | 69 78 3e 70 69 78 4d 61 |....if(p|ix>pixMa|
|000006c0| 78 29 70 69 78 4d 61 78 | 3d 70 69 78 3b 0d 09 09 |x)pixMax|=pix;...|
|000006d0| 09 09 6d 65 61 6e 4c 2b | 3d 70 69 78 3b 0d 09 09 |..meanL+|=pix;...|
|000006e0| 09 09 6d 65 61 6e 53 71 | 75 61 72 65 4c 2b 3d 70 |..meanSq|uareL+=p|
|000006f0| 69 78 2a 70 69 78 3b 0d | 09 09 09 7d 0d 09 09 09 |ix*pix;.|...}....|
|00000700| 6d 65 61 6e 2b 3d 6d 65 | 61 6e 4c 3b 09 09 09 09 |mean+=me|anL;....|
|00000710| 2f 2f 20 66 6c 6f 61 74 | 0d 09 09 09 6d 65 61 6e |// float|....mean|
|00000720| 53 71 75 61 72 65 2b 3d | 6d 65 61 6e 53 71 75 61 |Square+=|meanSqua|
|00000730| 72 65 4c 3b 09 2f 2f 20 | 66 6c 6f 61 74 0d 09 09 |reL;.// |float...|
|00000740| 7d 0d 09 09 61 72 65 61 | 3d 28 64 6f 75 62 6c 65 |}...area|=(double|
|00000750| 29 77 69 64 74 68 2a 28 | 72 65 63 74 2d 3e 62 6f |)width*(|rect->bo|
|00000760| 74 74 6f 6d 2d 72 65 63 | 74 2d 3e 74 6f 70 29 3b |ttom-rec|t->top);|
|00000770| 0d 09 09 6d 65 61 6e 2f | 3d 61 72 65 61 3b 0d 09 |...mean/|=area;..|
|00000780| 09 6d 65 61 6e 53 71 75 | 61 72 65 2f 3d 61 72 65 |.meanSqu|are/=are|
|00000790| 61 3b 0d 09 7d 0d 09 69 | 66 28 6d 69 6e 50 74 72 |a;..}..i|f(minPtr|
|000007a0| 21 3d 4e 55 4c 4c 29 2a | 6d 69 6e 50 74 72 3d 70 |!=NULL)*|minPtr=p|
|000007b0| 69 78 4d 69 6e 3b 0d 09 | 69 66 28 6d 61 78 50 74 |ixMin;..|if(maxPt|
|000007c0| 72 21 3d 4e 55 4c 4c 29 | 2a 6d 61 78 50 74 72 3d |r!=NULL)|*maxPtr=|
|000007d0| 70 69 78 4d 61 78 3b 0d | 09 69 66 28 6d 65 61 6e |pixMax;.|.if(mean|
|000007e0| 50 74 72 21 3d 4e 55 4c | 4c 29 2a 6d 65 61 6e 50 |Ptr!=NUL|L)*meanP|
|000007f0| 74 72 3d 6d 65 61 6e 3b | 0d 09 69 66 28 6d 65 61 |tr=mean;|..if(mea|
|00000800| 6e 53 71 75 61 72 65 50 | 74 72 21 3d 4e 55 4c 4c |nSquareP|tr!=NULL|
|00000810| 29 2a 6d 65 61 6e 53 71 | 75 61 72 65 50 74 72 3d |)*meanSq|uarePtr=|
|00000820| 6d 65 61 6e 53 71 75 61 | 72 65 3b 0d 7d 0d 00 00 |meanSqua|re;.}...|
|00000830| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000840| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000850| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000860| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000870| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000880| 00 00 01 00 00 00 01 54 | 00 00 00 54 00 00 00 46 |.......T|...T...F|
|00000890| 65 73 70 6f 6e 73 65 46 | 75 6e 63 74 69 6f 6e 20 |esponseF|unction |
|000008a0| 61 63 63 65 70 74 73 20 | 61 6e 20 65 78 74 72 61 |accepts |an extra|
|000008b0| 11 49 6d 61 67 65 53 74 | 61 74 69 73 74 69 63 73 |.ImageSt|atistics|
|000008c0| 2e 63 02 00 00 00 54 45 | 58 54 43 57 49 45 01 00 |.c....TE|XTCWIE..|
|000008d0| 00 00 54 45 58 54 43 57 | 49 45 01 00 00 3c 02 a0 |..TEXTCW|IE...<..|
|000008e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008f0| 00 00 aa d4 c3 4a 00 00 | 07 ae 00 00 01 9a 2e 0d |.....J..|........|
|00000900| 09 31 30 2f 32 34 2f 39 | 32 09 64 67 70 3a 20 46 |.10/24/9|2.dgp: F|
|00000910| 69 78 65 64 20 63 6f 6d | 70 75 74 61 74 69 6f 6e |ixed com|putation|
|00000920| 20 6f 66 20 69 6e 74 65 | 6e 73 69 74 79 20 73 6f | of inte|nsity so|
|00000930| 20 74 68 61 74 20 69 74 | 20 67 69 76 65 73 20 73 | that it| gives s|
|00000940| 65 6e 73 69 62 6c 65 20 | 61 6e 73 77 65 72 0d 09 |ensible |answer..|
|00000950| 09 09 09 65 76 65 6e 20 | 77 68 65 6e 20 71 63 2d |...even |when qc-|
|00000960| 3e 67 75 65 73 73 20 69 | 73 20 4e 41 4e 2e 20 50 |>guess i|s NAN. P|
|00000970| 72 65 76 69 6f 75 73 6c | 79 20 74 68 65 20 63 6f |reviousl|y the co|
|00000980| 00 00 00 04 00 01 00 01 | 00 00 00 48 00 09 4d 6f |........|...H..Mo|
|00000990| 6e 61 63 6f 00 00 00 00 | 00 00 00 00 00 00 00 00 |naco....|........|
|000009a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 06 |........|........|
|000009b0| 00 04 00 2a 00 03 01 dd | 02 7d 00 26 00 04 01 dc |...*....|.}.&....|
|000009c0| 02 5e ac 56 55 cb 00 00 | 01 bf 00 00 01 bf 00 00 |.^.VU...|........|
|000009d0| 00 00 00 00 00 00 01 00 | 00 00 01 54 00 00 00 54 |........|...T...T|
|000009e0| 00 00 00 46 00 3d dd 1c | 2a 9a 00 00 00 1c 00 46 |...F.=..|*......F|
|000009f0| 00 01 4d 57 42 42 00 00 | 00 12 4d 50 53 52 00 00 |..MWBB..|..MPSR..|
|00000a00| 00 1e 03 f0 ff ff 00 00 | 00 00 00 00 00 00 03 ed |........|........|
|00000a10| ff ff 00 00 00 08 00 3d | db 80 00 00 00 00 00 00 |.......=|........|
|00000a20| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000a30| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000a40| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000a50| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000a60| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000a70| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
+--------+-------------------------+-------------------------+--------+--------+