Hi, I have some questions. Is there anybody to help me?
I would like to get somebody to help me with: 1. define all gray values in the picture ( I think that this makes Historgram) 2. define gray values (range of gray values) for different areas in the picture (is in ImageJ possibility to label areas and measure gray values only in the area? ) 3. according to this range, change all pixels within the range into one color (that means that some areas on the picture will have only one color) Thanks. With best regards Peter. |
Peter Oslanec a écrit :
> Hi, I have some questions. Is there anybody to help me? > > I would like to get somebody to help me with: > > 1. define all gray values in the picture ( I think that this makes > Historgram) > 2. define gray values (range of gray values) for different areas in the > picture (is in ImageJ possibility to label areas and measure gray values > only in the area? ) > 3. according to this range, change all pixels within the range into one > color (that means that some areas on the picture will have only one color) > > Thanks. > > With best regards Peter. > knoledge of how much regions you're interested in you could try k-means clustering. It is a plugin you can find under "Plugins" , "Segmentation" ... Fabrice. -- Senger Fabrice |
In reply to this post by Peter Oslanec-2
Good morning,
on ANALIZE-->TOOLS-->CURVE FITTING I need to fit a sinusoidal profile for search the value of maximum and minimum of the points to calculate the visibility of the fringes. Can you help me? in curve fitting is not present a sin fitting and I would integrate it. 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982 468.087249756 983 509.157714844 984 549.157714844 985 588.486572266 986 632.593933105 987 684.120788574 988 723.805358887 989 753.936218262 990 784.976501465 991 827.654357910 992 878.818786621 993 921.348999023 994 954.070495605 995 992.332214355 996 1024.348999023 997 1058.291992188 998 1080.167724609 999 1118.570434570 1000 1168.315429688 1001 1216.187866211 1002 1246.023437500 1003 1277.681152344 1004 1311.929565430 1005 1337.553710938 1006 1362.600708008 1007 1405.899291992 1008 1444.506713867 1009 1457.630859375 1010 1471.087280273 1011 1516.865722656 1012 1559.842285156 1013 1571.016723633 1014 1575.154418945 1015 1601.288574219 1016 1636.718139648 1017 1633.956420898 1018 1608.080566406 1019 1622.728149414 1020 1659.926147461 1021 1678.255004883 1022 1672.436279297 1023 1680.228149414 1024 1694.375854492 1025 1679.848999023 1026 1648.372436523 1027 1641.500000000 1028 1665.151000977 1029 1660.671142578 1030 1614.718139648 1031 1581.352294922 1032 1585.359008789 1033 1589.765136719 1034 1561.855712891 1035 1510.416137695 1036 1497.053710938 1037 1500.657714844 1038 1467.406005859 1039 1408.345581055 1040 1368.177856445 1041 1362.718139648 1042 1349.271850586 1043 1288.275146484 1044 1224.993286133 1045 1190.416137695 1046 1168.281860352 1047 1127.030151367 1048 1079.429565430 1049 1043.459716797 1050 1032.224853516 1051 991.738281250 1052 919.583862305 1053 871.687927246 1054 852.187927246 1055 814.117431641 1056 757.835571289 1057 715.570495605 1058 687.134216309 1059 646.902709961 1060 593.842285156 1061 553.510070801 1062 531.956359863 1063 503.067108154 1064 459.345642090 1065 410.936248779 1066 373.838928223 1067 352.828857422 1068 326.107391357 1069 294.117462158 1070 266.365783691 1071 242.516784668 1072 213.748321533 1073 189.013427734 1074 174.318786621 1075 167.422821045 1076 151.855697632 1077 134.265106201 1078 124.644294739 1079 118.107383728 1080 106.244964600 1081 96.976509094 1082 92.912750244 1083 92.842285156 1084 94.694633484 1085 94.154365540 1086 91.788589478 1087 100.704696655 1088 116.114097595 1089 129.838928223 1090 139.630874634 1091 159.278518677 1092 188.969802856 1093 216.889266968 1094 235.909393311 1095 254.416107178 1096 280.288604736 1097 307.124176025 1098 328.016784668 1099 352.446319580 1100 386.983215332 1101 425.312072754 1102 449.167785645 1103 469.151000977 1104 504.184570312 1105 557.731567383 1106 605.077209473 1107 640.063781738 1108 673.077209473 1109 715.097290039 1110 763.043640137 1111 810.211425781 1112 847.560424805 1113 890.120788574 1114 933.395996094 1115 985.959716797 1116 1014.406066895 1117 1042.167724609 1118 1083.298706055 1119 1140.533569336 1120 1182.281860352 1121 1202.302001953 1122 1226.664428711 1123 1265.822143555 1124 1310.795288086 1125 1334.399291992 1126 1366.704711914 1127 1415.010009766 1128 1461.781860352 1129 1487.929565430 1130 1503.459716797 1131 1531.510009766 1132 1556.748291016 1133 1575.348999023 1134 1595.006713867 1135 1603.077148438 1136 1612.768432617 1137 1620.003295898 1138 1633.083862305 1139 1656.523437500 1140 1651.238281250 1141 1642.302001953 1142 1636.325561523 1143 1648.090576172 1144 1648.543579102 1145 1643.604003906 1146 1642.614135742 1147 1653.248291016 1148 1648.842285156 1149 1632.818847656 1150 1636.651000977 1151 1641.711425781 1152 1635.560424805 1153 1612.848999023 1154 1586.718139648 1155 1593.983276367 1156 1564.244995117 1157 1518.942993164 1158 1478.520141602 1159 1477.157714844 1160 1457.493286133 1161 1399.536865234 1162 1340.590576172 1163 1313.610717773 1164 1315.667724609 1165 1286.691284180 1166 1217.023437500 1167 1191.174438477 1168 1184.395996094 1169 1142.473144531 1170 1087.899291992 1171 1051.120849609 1172 1037.325561523 1173 1018.285217285 1174 948.681213379 1175 871.432861328 1176 843.355712891 1177 817.080566406 1178 768.083862305 1179 725.332214355 1180 690.664428711 1181 659.671142578 1182 627.624145508 1183 585.449645996 1184 547.191284180 1185 527.573852539 1186 494.513427734 1187 443.060394287 1188 406.922821045 1189 382.369140625 1190 356.751678467 1191 329.644287109 1192 304.379180908 1193 275.231536865 1194 243.758392334 1195 216.214767456 1196 195.755035400 1197 177.593963623 1198 160.080535889 1199 143.661071777 1200 132.687911987 1201 120.000000000 1202 111.634231567 1203 109.375839233 1204 108.862419128 1205 98.604026794 1206 90.563758850 1207 97.268455505 1208 110.647651672 1209 110.956375122 1210 111.607383728 1211 121.322151184 1212 139.704696655 1213 146.053695679 1214 151.590606689 1215 170.946304321 1216 192.436248779 1217 205.194625854 1218 216.906036377 1219 251.731536865 1220 290.033569336 1221 310.268463135 1222 323.060394287 1223 364.657714844 1224 423.842285156 1225 466.966430664 1226 473.083892822 1227 483.412750244 1228 527.634216309 1229 576.919433594 1230 597.835571289 1231 615.916137695 1232 656.328857422 1233 702.046997070 1234 735.473144531 1235 754.053710938 1236 791.070495605 1237 845.714782715 1238 900.419433594 1239 922.459716797 1240 931.510070801 1241 959.067138672 1242 1009.046997070 1243 1059.097290039 1244 1097.654418945 1245 1146.795288086 1246 1191.862426758 1247 1215.523437500 1248 1224.493286133 1249 1226.090576172 1250 1233.959716797 1251 1257.389282227 1252 1285.889282227 1253 1309.979858398 1254 1334.540283203 1255 1361.728149414 1256 1401.416137695 1257 1449.208007812 1258 1468.963134766 1259 1475.959716797 1260 1471.728149414 1261 1472.382568359 1262 1468.949707031 1263 1455.271850586 1264 1439.097290039 1265 1462.285278320 1266 1471.295288086 1267 1461.862426758 |
Hi Gabriele,
in case you are only interested in the periodicity or the height: Make an image out of the data (1*1268 pixels in your case) and use Process>FFT>FFT Options to get the power spectrum, then find the highest peak. Finding the correct the spatial frequency is easier if you swap the quadrants. Then pixel (0,0) will correspond to a spatial frequency of 0; (0,1) will correspond to one cycle per image width ("width" means the width of the FFT image in pixels). It won't be very exact, but it should be a good starting point. The height of the peak will correspond to the square of the amplitude of your sine wave, with some arbitrary factor. Note that you have to integrate over a few pixels around the maximum. I don't know whether this will be accurate enough for you, you have to try. Also, it only works if all of your data sets have the same length (otherwise you have to scale all images to the same image size). Michael ________________________________________________________________ On 16 Oct 2008, at 10:29, Gabriele Umbriaco wrote: > Good morning, > on ANALIZE-->TOOLS-->CURVE FITTING I need to fit a sinusoidal > profile for search the value of maximum and minimum of the points > to calculate the visibility of the fringes. Can you help me? in > curve fitting is not present a sin fitting and I would integrate it. > Thanks, Gabriele. |
In reply to this post by Gabriele Umbriaco
Gabriele
That is easy enough to fit in MSExcel or any spreadsheet. =$G$3+$G$1*((SIN(RADIANS($G$4*(A1-$G$2))))^$G$5) G1 amp 1600 G2 phase 105 G3 vshift 55 G4 freq 1.47 G5 power 2 r-factor 0.154106, after a few hand-interations rf = sqrt (average ( rel error) ^2 ) ) see this URL for an GIF image of the plot: http://www.matscieng.sunysb.edu/temp/gabriele.gif If you do a rolling normalization of the extrema to 0 and 100%, then you should be able to get the r-factor VERY small. JQuinn PS: I am sure that it is even easier in a commercial or open math/graph program, such as Mathematica, MatLab, SigmaPlot, Origin, R, Gnuplot, etc...... At 04:29 AM 10/16/2008, you wrote: >Good morning, >on ANALIZE-->TOOLS-->CURVE FITTING I need to fit a sinusoidal profile for search the value of maximum and minimum of the points to calculate the visibility of the fringes. Can you help me? in curve fitting is not present a sin fitting and I would integrate it. >Thanks, Gabriele. > > >0 365.664428711 >1 395.969787598 >2 422.020141602 >3 447.006713867 >4 476.929534912 >5 506.124176025 >6 537.006713867 >7 568.711425781 >8 600.751647949 >9 644.385925293 >10 697.399353027 >11 734.197998047 >12 761.278503418 >13 784.530212402 >14 808.352355957 >15 834.661071777 >16 860.312072754 >17 889.916137695 >18 927.426147461 >19 967.093933105 >20 1004.379211426 >21 1038.426147461 >22 1080.355712891 >23 1112.604003906 >24 1146.865722656 >25 1174.265136719 >26 1190.530151367 >27 1205.892578125 >28 1210.989990234 >29 1210.919433594 >30 1201.929565430 >31 1202.194580078 >32 1215.647705078 >33 1241.761718750 >34 1274.187866211 >35 1307.093994141 >36 1339.795288086 >37 1368.359008789 >38 1384.614135742 >39 1386.050292969 >40 1370.214721680 >41 1367.187866211 >42 1383.825561523 >43 1382.436279297 >44 1376.255004883 >45 1366.365722656 >46 1360.791992188 >47 1350.234863281 >48 1318.500000000 >49 1284.976562500 >50 1279.671142578 >51 1288.214721680 >52 1275.647705078 >53 1259.973144531 >54 1260.244995117 >55 1253.993286133 >56 1247.476562500 >57 1220.144287109 >58 1207.479858398 >59 1194.765136719 >60 1168.848999023 >61 1125.446289062 >62 1092.104003906 >63 1059.842285156 >64 1023.291931152 >65 985.553710938 >66 950.674499512 >67 936.687927246 >68 925.308715820 >69 926.144287109 >70 913.506713867 >71 895.526855469 >72 859.201354980 >73 814.483215332 >74 775.214782715 >75 734.258361816 >76 679.684570312 >77 629.261718750 >78 606.244995117 >79 590.000000000 >80 558.546997070 >81 519.798645020 >82 485.751678467 >83 475.879180908 >84 450.624176025 >85 411.046966553 >86 374.714752197 >87 358.483215332 >88 343.053680420 >89 308.570465088 >90 265.218109131 >91 243.567108154 >92 232.073822021 >93 208.691268921 >94 178.251678467 >95 165.996643066 >96 152.748321533 >97 132.671142578 >98 117.043624878 >99 111.671142578 >100 101.835571289 >101 93.781875610 >102 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>205 502.986572266 >206 483.312072754 >207 457.231536865 >208 426.389251709 >209 389.385894775 >210 354.523498535 >211 322.802001953 >212 288.798645020 >213 257.798645020 >214 235.419464111 >215 217.124160767 >216 192.003356934 >217 180.382553101 >218 172.546981812 >219 162.073822021 >220 143.110733032 >221 126.838928223 >222 122.500000000 >223 119.855705261 >224 102.520133972 >225 89.399330139 >226 91.489929199 >227 95.093955994 >228 89.684562683 >229 84.687919617 >230 90.875839233 >231 101.583892822 >232 108.060401917 >233 111.308723450 >234 126.597312927 >235 143.026840210 >236 156.167785645 >237 172.177856445 >238 188.932891846 >239 205.214767456 >240 230.258392334 >241 254.845642090 >242 275.167785645 >243 292.671142578 >244 310.805358887 >245 334.838928223 >246 361.825500488 >247 385.140930176 >248 412.087249756 >249 449.567108154 >250 486.345642090 >251 515.369140625 >252 552.100646973 >253 601.768432617 >254 650.892639160 >255 691.345642090 >256 722.228210449 >257 757.147644043 >258 785.523498535 >259 805.536926270 >260 825.778503418 >261 855.536926270 >262 890.530212402 >263 923.053710938 >264 951.322143555 >265 992.439575195 >266 1044.657714844 >267 1080.701293945 >268 1090.761718750 >269 1108.620849609 >270 1145.409423828 >271 1175.563720703 >272 1178.768432617 >273 1179.114135742 >274 1210.201293945 >275 1249.812133789 >276 1263.677856445 >277 1268.788574219 >278 1289.751708984 >279 1319.187866211 >280 1326.204711914 >281 1322.916137695 >282 1335.597290039 >283 1369.439575195 >284 1396.234863281 >285 1413.744995117 >286 1420.140991211 >287 1434.010009766 >288 1437.526855469 >289 1427.718139648 >290 1418.201293945 >291 1415.449707031 >292 1420.885864258 >293 1421.979858398 >294 1422.489990234 >295 1427.516723633 >296 1415.691284180 >297 1388.392578125 >298 1359.154418945 >299 1346.885864258 >300 1330.932861328 >301 1297.812133789 >302 1268.244995117 >303 1254.644287109 >304 1247.885864258 >305 1224.721435547 >306 1193.372436523 >307 1177.751708984 >308 1167.768432617 >309 1141.879150391 >310 1093.416137695 >311 1056.298706055 >312 1032.000000000 >313 1011.449645996 >314 984.791931152 >315 959.318786621 >316 935.466430664 >317 905.748352051 >318 857.640930176 >319 804.033569336 >320 757.258361816 >321 728.231567383 >322 699.305358887 >323 661.953002930 >324 620.758361816 >325 584.570495605 >326 550.392639160 >327 510.379180908 >328 470.449676514 >329 439.835571289 >330 416.003356934 >331 385.218109131 >332 353.714752197 >333 327.429534912 >334 303.345642090 >335 282.677856445 >336 263.161071777 >337 245.124160767 >338 220.892623901 >339 193.687911987 >340 175.553695679 >341 163.765106201 >342 145.916107178 >343 126.791946411 >344 121.312080383 >345 119.483222961 >346 106.053688049 >347 91.976509094 >348 87.614097595 >349 90.597312927 >350 89.895973206 >351 87.422821045 >352 88.949661255 >353 96.372482300 >354 101.832214355 >355 104.986579895 >356 118.402687073 >357 140.372482300 >358 156.765106201 >359 169.104034424 >360 187.765106201 >361 215.352355957 >362 235.627517700 >363 249.785232544 >364 267.540283203 >365 296.590606689 >366 323.979858398 >367 346.271820068 >368 375.976501465 >369 422.755035400 >370 468.624176025 >371 502.177856445 >372 523.026855469 >373 554.805358887 >374 594.956359863 >375 632.614074707 >376 660.939575195 >377 691.221496582 >378 723.328857422 >379 760.385925293 >380 793.046997070 >381 832.395996094 >382 870.697998047 >383 913.657714844 >384 959.590576172 >385 1012.953002930 >386 1055.936279297 >387 1094.859008789 >388 1146.708007812 >389 1203.855712891 >390 1235.721435547 >391 1253.614135742 >392 1275.087280273 >393 1313.802001953 >394 1345.855712891 >395 1367.714721680 >396 1403.855712891 >397 1453.644287109 >398 1492.630859375 >399 1503.973144531 >400 1504.432861328 >401 1522.422851562 >402 1540.493286133 >403 1562.244995117 >404 1566.399291992 >405 1587.114135742 >406 1618.144287109 >407 1641.298706055 >408 1648.791992188 >409 1651.788574219 >410 1660.399291992 >411 1671.097290039 >412 1665.147705078 >413 1657.956420898 >414 1653.661132812 >415 1652.694580078 >416 1642.187866211 >417 1628.063720703 >418 1623.402709961 >419 1609.560424805 >420 1586.795288086 >421 1565.379150391 >422 1554.768432617 >423 1540.969848633 >424 1514.456420898 >425 1493.818847656 >426 1490.946289062 >427 1460.446289062 >428 1397.966430664 >429 1353.791992188 >430 1335.966430664 >431 1317.902709961 >432 1284.255004883 >433 1254.644287109 >434 1243.929565430 >435 1237.973144531 >436 1201.154418945 >437 1148.315429688 >438 1101.714721680 >439 1073.100708008 >440 1029.828857422 >441 967.453002930 >442 922.372497559 >443 895.895996094 >444 866.684570312 >445 825.144287109 >446 777.899353027 >447 737.912780762 >448 697.560424805 >449 645.503356934 >450 594.768432617 >451 565.906066895 >452 538.265075684 >453 497.154357910 >454 456.117462158 >455 420.969787598 >456 388.979858398 >457 351.875823975 >458 321.144287109 >459 302.570465088 >460 286.577178955 >461 261.476501465 >462 228.969802856 >463 201.835571289 >464 184.909393311 >465 170.483215332 >466 147.687911987 >467 124.077178955 >468 111.634231567 >469 106.845634460 >470 103.053688049 >471 94.157714844 >472 83.818794250 >473 83.291946411 >474 94.540267944 >475 99.224830627 >476 93.859062195 >477 98.244964600 >478 118.426177979 >479 135.879196167 >480 135.859054565 >481 138.869125366 >482 158.328857422 >483 190.580535889 >484 212.312088013 >485 222.369125366 >486 241.362411499 >487 277.211395264 >488 311.869140625 >489 328.805358887 >490 350.446319580 >491 393.637573242 >492 432.697998047 >493 462.979858398 >494 491.466430664 >495 529.369140625 >496 569.785217285 >497 594.523498535 >498 611.791931152 >499 647.513427734 >500 695.305358887 >501 742.342285156 >502 791.533569336 >503 842.177856445 >504 883.882568359 >505 902.127502441 >506 925.050354004 >507 958.500000000 >508 999.315429688 >509 1030.087280273 >510 1067.647705078 >511 1104.919433594 >512 1152.389282227 >513 1189.959716797 >514 1207.550292969 >515 1228.208007812 >516 1270.889282227 >517 1314.926147461 >518 1341.496704102 >519 1365.859008789 >520 1403.768432617 >521 1434.644287109 >522 1454.345581055 >523 1457.187866211 >524 1471.050292969 >525 1486.637573242 >526 1500.775146484 >527 1515.231567383 >528 1535.815429688 >529 1557.838867188 >530 1558.060424805 >531 1552.916137695 >532 1540.828857422 >533 1542.916137695 >534 1542.543579102 >535 1550.493286133 >536 1561.530151367 >537 1560.983276367 >538 1545.016723633 >539 1533.785278320 >540 1529.765136719 >541 1520.526855469 >542 1495.399291992 >543 1469.510009766 >544 1451.332275391 >545 1441.281860352 >546 1414.674438477 >547 1391.308715820 >548 1370.781860352 >549 1351.775146484 >550 1329.318847656 >551 1292.711425781 >552 1259.862426758 >553 1240.963134766 >554 1240.721435547 >555 1218.788574219 >556 1161.067138672 >557 1107.640991211 >558 1082.899291992 >559 1066.845581055 >560 1024.812133789 >561 988.758361816 >562 986.926147461 >563 956.177856445 >564 895.812072754 >565 834.788574219 >566 793.459716797 >567 753.751647949 >568 704.154357910 >569 652.459716797 >570 608.144287109 >571 577.486572266 >572 552.714782715 >573 522.946289062 >574 485.191284180 >575 447.258392334 >576 415.067108154 >577 390.053680420 >578 362.741607666 >579 333.936248779 >580 314.996643066 >581 297.278533936 >582 270.577178955 >583 236.791946411 >584 206.000000000 >585 190.221481323 >586 180.046981812 >587 162.661071777 >588 139.114089966 >589 121.459732056 >590 111.701339722 >591 107.298660278 >592 98.104026794 >593 85.953018188 >594 81.291946411 >595 85.325500488 >596 87.295303345 >597 88.325500488 >598 84.318794250 >599 88.640937805 >600 100.852348328 >601 110.614097595 >602 119.855705261 >603 131.395965576 >604 146.020141602 >605 162.721481323 >606 182.637588501 >607 200.664428711 >608 215.761749268 >609 243.278518677 >610 279.973144531 >611 303.765106201 >612 313.953033447 >613 335.251678467 >614 376.342285156 >615 415.906036377 >616 435.895965576 >617 458.654357910 >618 498.446319580 >619 549.993286133 >620 585.348999023 >621 608.989929199 >622 635.912780762 >623 685.573852539 >624 728.050354004 >625 764.137573242 >626 803.087219238 >627 853.815429688 >628 888.919433594 >629 916.345642090 >630 940.761718750 >631 973.020141602 >632 1010.302001953 >633 1052.449707031 >634 1091.375854492 >635 1111.238281250 >636 1131.553710938 >637 1159.382568359 >638 1182.694580078 >639 1220.134277344 >640 1265.013427734 >641 1297.661132812 >642 1328.365722656 >643 1370.449707031 >644 1402.654418945 >645 1411.979858398 >646 1413.597290039 >647 1439.879150391 >648 1464.845581055 >649 1471.604003906 >650 1493.624145508 >651 1535.312133789 >652 1565.667724609 >653 1562.714721680 >654 1540.697998047 >655 1539.003295898 >656 1544.097290039 >657 1549.241577148 >658 1549.422851562 >659 1555.604003906 >660 1574.808715820 >661 1585.476562500 >662 1570.604003906 >663 1554.922851562 >664 1562.503295898 >665 1555.583862305 >666 1521.426147461 >667 1505.909423828 >668 1515.093994141 >669 1503.791992188 >670 1467.889282227 >671 1425.365722656 >672 1405.442993164 >673 1396.164428711 >674 1376.476562500 >675 1344.540283203 >676 1321.869140625 >677 1295.953002930 >678 1244.308715820 >679 1177.993286133 >680 1156.546997070 >681 1153.224853516 >682 1130.164428711 >683 1082.241577148 >684 1043.654418945 >685 1022.590576172 >686 982.046997070 >687 929.164428711 >688 881.402709961 >689 857.130859375 >690 827.244995117 >691 774.661071777 >692 726.473144531 >693 693.989929199 >694 661.946289062 >695 610.805358887 >696 554.587219238 >697 513.513427734 >698 498.422821045 >699 471.755035400 >700 425.818786621 >701 387.003356934 >702 365.305358887 >703 336.909393311 >704 295.161071777 >705 266.093963623 >706 252.647644043 >707 233.617446899 >708 201.000000000 >709 172.966445923 >710 157.953018188 >711 147.701339722 >712 134.164428711 >713 118.214767456 >714 109.197982788 >715 106.812080383 >716 100.426177979 >717 89.248321533 >718 79.802017212 >719 76.741607666 >720 83.956375122 >721 95.751678467 >722 97.231544495 >723 99.365768433 >724 113.181205750 >725 133.520141602 >726 147.493286133 >727 161.543624878 >728 181.630874634 >729 208.781875610 >730 230.734893799 >731 251.053695679 >732 276.895965576 >733 313.107391357 >734 347.989929199 >735 373.449676514 >736 406.167785645 >737 453.439605713 >738 485.285247803 >739 503.265106201 >740 531.845642090 >741 585.516784668 >742 646.288574219 >743 686.859069824 >744 726.134216309 >745 781.855712891 >746 831.382568359 >747 857.651000977 >748 883.369140625 >749 940.600646973 >750 996.104003906 >751 1027.936279297 >752 1056.802001953 >753 1093.439575195 >754 1146.385864258 >755 1202.694580078 >756 1241.228149414 >757 1277.513427734 >758 1330.651000977 >759 1386.758422852 >760 1426.298706055 >761 1442.181152344 >762 1469.825561523 >763 1500.171142578 >764 1521.963134766 >765 1561.946289062 >766 1604.785278320 >767 1639.439575195 >768 1658.909423828 >769 1677.909423828 >770 1708.164428711 >771 1716.483276367 >772 1728.795288086 >773 1756.211425781 >774 1772.224853516 >775 1765.419433594 >776 1734.647705078 >777 1734.261718750 >778 1751.503295898 >779 1750.593994141 >780 1739.510009766 >781 1737.624145508 >782 1757.640991211 >783 1762.265136719 >784 1743.718139648 >785 1715.993286133 >786 1701.718139648 >787 1706.540283203 >788 1701.546997070 >789 1682.741577148 >790 1671.979858398 >791 1666.214721680 >792 1630.453002930 >793 1580.751708984 >794 1554.315429688 >795 1543.154418945 >796 1528.912719727 >797 1486.885864258 >798 1431.513427734 >799 1389.261718750 >800 1357.385864258 >801 1319.593994141 >802 1273.402709961 >803 1234.097290039 >804 1200.439575195 >805 1152.174438477 >806 1103.251708984 >807 1056.385864258 >808 1007.731567383 >809 946.154357910 >810 897.288574219 >811 860.771789551 >812 831.909423828 >813 787.255004883 >814 738.697998047 >815 694.604003906 >816 661.030212402 >817 625.312072754 >818 586.832214355 >819 564.570495605 >820 540.258361816 >821 496.953033447 >822 447.771820068 >823 413.248321533 >824 379.882537842 >825 342.778533936 >826 307.251678467 >827 284.231536865 >828 260.704711914 >829 233.543624878 >830 211.560409546 >831 187.003356934 >832 166.691268921 >833 157.963088989 >834 145.197982788 >835 129.949661255 >836 114.731544495 >837 105.167785645 >838 101.724830627 >839 100.285232544 >840 96.842285156 >841 93.298660278 >842 97.134231567 >843 106.090606689 >844 109.694633484 >845 108.697982788 >846 120.375839233 >847 142.107376099 >848 157.771804810 >849 164.835571289 >850 174.593963623 >851 199.043624878 >852 224.711410522 >853 246.466445923 >854 266.090606689 >855 296.778533936 >856 342.577178955 >857 374.832214355 >858 392.181213379 >859 428.875823975 >860 481.610748291 >861 517.865783691 >862 528.963073730 >863 557.577209473 >864 604.184570312 >865 636.724853516 >866 665.130859375 >867 711.590576172 >868 768.573852539 >869 819.828857422 >870 854.127502441 >871 888.211425781 >872 929.308715820 >873 962.805358887 >874 1007.812072754 >875 1062.647705078 >876 1119.268432617 >877 1166.375854492 >878 1190.312133789 >879 1204.134277344 >880 1230.305419922 >881 1270.110717773 >882 1304.845581055 >883 1328.332275391 >884 1352.097290039 >885 1389.614135742 >886 1413.597290039 >887 1438.614135742 >888 1467.929565430 >889 1485.684570312 >890 1505.755004883 >891 1524.426147461 >892 1540.063720703 >893 1553.506713867 >894 1560.050292969 >895 1559.530151367 >896 1574.184570312 >897 1610.335571289 >898 1622.104003906 >899 1606.406005859 >900 1591.724853516 >901 1601.389282227 >902 1596.372436523 >903 1576.036865234 >904 1556.993286133 >905 1558.473144531 >906 1553.127563477 >907 1529.993286133 >908 1498.020141602 >909 1494.852294922 >910 1496.909423828 >911 1488.453002930 >912 1450.919433594 >913 1425.345581055 >914 1411.161132812 >915 1399.305419922 >916 1356.107421875 >917 1308.268432617 >918 1300.956420898 >919 1297.684570312 >920 1257.187866211 >921 1196.902709961 >922 1152.030151367 >923 1129.265136719 >924 1101.046997070 >925 1056.748291016 >926 1025.781860352 >927 1011.546997070 >928 979.402709961 >929 926.724853516 >930 881.439575195 >931 855.436218262 >932 823.114074707 >933 776.335571289 >934 730.872497559 >935 698.342285156 >936 667.265075684 >937 624.661071777 >938 575.922790527 >939 537.879211426 >940 514.708068848 >941 494.392608643 >942 456.818786621 >943 405.781890869 >944 369.265106201 >945 355.161071777 >946 333.889251709 >947 303.953033447 >948 274.325500488 >949 253.255035400 >950 232.661071777 >951 207.315429688 >952 183.181213379 >953 167.000000000 >954 149.812088013 >955 133.506713867 >956 117.744964600 >957 105.674499512 >958 96.258392334 >959 85.412750244 >960 77.906044006 >961 80.946311951 >962 88.328857422 >963 89.711410522 >964 85.281875610 >965 93.530204773 >966 110.600669861 >967 122.483222961 >968 123.969795227 >969 137.577178955 >970 160.375839233 >971 183.808731079 >972 197.479858398 >973 210.570465088 >974 236.607376099 >975 264.785247803 >976 280.838928223 >977 296.030212402 >978 323.016784668 >979 364.275177002 >980 403.667785645 >981 435.097320557 >982 468.087249756 >983 509.157714844 >984 549.157714844 >985 588.486572266 >986 632.593933105 >987 684.120788574 >988 723.805358887 >989 753.936218262 >990 784.976501465 >991 827.654357910 >992 878.818786621 >993 921.348999023 >994 954.070495605 >995 992.332214355 >996 1024.348999023 >997 1058.291992188 >998 1080.167724609 >999 1118.570434570 >1000 1168.315429688 >1001 1216.187866211 >1002 1246.023437500 >1003 1277.681152344 >1004 1311.929565430 >1005 1337.553710938 >1006 1362.600708008 >1007 1405.899291992 >1008 1444.506713867 >1009 1457.630859375 >1010 1471.087280273 >1011 1516.865722656 >1012 1559.842285156 >1013 1571.016723633 >1014 1575.154418945 >1015 1601.288574219 >1016 1636.718139648 >1017 1633.956420898 >1018 1608.080566406 >1019 1622.728149414 >1020 1659.926147461 >1021 1678.255004883 >1022 1672.436279297 >1023 1680.228149414 >1024 1694.375854492 >1025 1679.848999023 >1026 1648.372436523 >1027 1641.500000000 >1028 1665.151000977 >1029 1660.671142578 >1030 1614.718139648 >1031 1581.352294922 >1032 1585.359008789 >1033 1589.765136719 >1034 1561.855712891 >1035 1510.416137695 >1036 1497.053710938 >1037 1500.657714844 >1038 1467.406005859 >1039 1408.345581055 >1040 1368.177856445 >1041 1362.718139648 >1042 1349.271850586 >1043 1288.275146484 >1044 1224.993286133 >1045 1190.416137695 >1046 1168.281860352 >1047 1127.030151367 >1048 1079.429565430 >1049 1043.459716797 >1050 1032.224853516 >1051 991.738281250 >1052 919.583862305 >1053 871.687927246 >1054 852.187927246 >1055 814.117431641 >1056 757.835571289 >1057 715.570495605 >1058 687.134216309 >1059 646.902709961 >1060 593.842285156 >1061 553.510070801 >1062 531.956359863 >1063 503.067108154 >1064 459.345642090 >1065 410.936248779 >1066 373.838928223 >1067 352.828857422 >1068 326.107391357 >1069 294.117462158 >1070 266.365783691 >1071 242.516784668 >1072 213.748321533 >1073 189.013427734 >1074 174.318786621 >1075 167.422821045 >1076 151.855697632 >1077 134.265106201 >1078 124.644294739 >1079 118.107383728 >1080 106.244964600 >1081 96.976509094 >1082 92.912750244 >1083 92.842285156 >1084 94.694633484 >1085 94.154365540 >1086 91.788589478 >1087 100.704696655 >1088 116.114097595 >1089 129.838928223 >1090 139.630874634 >1091 159.278518677 >1092 188.969802856 >1093 216.889266968 >1094 235.909393311 >1095 254.416107178 >1096 280.288604736 >1097 307.124176025 >1098 328.016784668 >1099 352.446319580 >1100 386.983215332 >1101 425.312072754 >1102 449.167785645 >1103 469.151000977 >1104 504.184570312 >1105 557.731567383 >1106 605.077209473 >1107 640.063781738 >1108 673.077209473 >1109 715.097290039 >1110 763.043640137 >1111 810.211425781 >1112 847.560424805 >1113 890.120788574 >1114 933.395996094 >1115 985.959716797 >1116 1014.406066895 >1117 1042.167724609 >1118 1083.298706055 >1119 1140.533569336 >1120 1182.281860352 >1121 1202.302001953 >1122 1226.664428711 >1123 1265.822143555 >1124 1310.795288086 >1125 1334.399291992 >1126 1366.704711914 >1127 1415.010009766 >1128 1461.781860352 >1129 1487.929565430 >1130 1503.459716797 >1131 1531.510009766 >1132 1556.748291016 >1133 1575.348999023 >1134 1595.006713867 >1135 1603.077148438 >1136 1612.768432617 >1137 1620.003295898 >1138 1633.083862305 >1139 1656.523437500 >1140 1651.238281250 >1141 1642.302001953 >1142 1636.325561523 >1143 1648.090576172 >1144 1648.543579102 >1145 1643.604003906 >1146 1642.614135742 >1147 1653.248291016 >1148 1648.842285156 >1149 1632.818847656 >1150 1636.651000977 >1151 1641.711425781 >1152 1635.560424805 >1153 1612.848999023 >1154 1586.718139648 >1155 1593.983276367 >1156 1564.244995117 >1157 1518.942993164 >1158 1478.520141602 >1159 1477.157714844 >1160 1457.493286133 >1161 1399.536865234 >1162 1340.590576172 >1163 1313.610717773 >1164 1315.667724609 >1165 1286.691284180 >1166 1217.023437500 >1167 1191.174438477 >1168 1184.395996094 >1169 1142.473144531 >1170 1087.899291992 >1171 1051.120849609 >1172 1037.325561523 >1173 1018.285217285 >1174 948.681213379 >1175 871.432861328 >1176 843.355712891 >1177 817.080566406 >1178 768.083862305 >1179 725.332214355 >1180 690.664428711 >1181 659.671142578 >1182 627.624145508 >1183 585.449645996 >1184 547.191284180 >1185 527.573852539 >1186 494.513427734 >1187 443.060394287 >1188 406.922821045 >1189 382.369140625 >1190 356.751678467 >1191 329.644287109 >1192 304.379180908 >1193 275.231536865 >1194 243.758392334 >1195 216.214767456 >1196 195.755035400 >1197 177.593963623 >1198 160.080535889 >1199 143.661071777 >1200 132.687911987 >1201 120.000000000 >1202 111.634231567 >1203 109.375839233 >1204 108.862419128 >1205 98.604026794 >1206 90.563758850 >1207 97.268455505 >1208 110.647651672 >1209 110.956375122 >1210 111.607383728 >1211 121.322151184 >1212 139.704696655 >1213 146.053695679 >1214 151.590606689 >1215 170.946304321 >1216 192.436248779 >1217 205.194625854 >1218 216.906036377 >1219 251.731536865 >1220 290.033569336 >1221 310.268463135 >1222 323.060394287 >1223 364.657714844 >1224 423.842285156 >1225 466.966430664 >1226 473.083892822 >1227 483.412750244 >1228 527.634216309 >1229 576.919433594 >1230 597.835571289 >1231 615.916137695 >1232 656.328857422 >1233 702.046997070 >1234 735.473144531 >1235 754.053710938 >1236 791.070495605 >1237 845.714782715 >1238 900.419433594 >1239 922.459716797 >1240 931.510070801 >1241 959.067138672 >1242 1009.046997070 >1243 1059.097290039 >1244 1097.654418945 >1245 1146.795288086 >1246 1191.862426758 >1247 1215.523437500 >1248 1224.493286133 >1249 1226.090576172 >1250 1233.959716797 >1251 1257.389282227 >1252 1285.889282227 >1253 1309.979858398 >1254 1334.540283203 >1255 1361.728149414 >1256 1401.416137695 >1257 1449.208007812 >1258 1468.963134766 >1259 1475.959716797 >1260 1471.728149414 >1261 1472.382568359 >1262 1468.949707031 >1263 1455.271850586 >1264 1439.097290039 >1265 1462.285278320 >1266 1471.295288086 >1267 1461.862426758 |
Thank you for your attention.
About MSExcel, how can I find amp,phase,vshift,freq,power on my data? In amplitude, for example, I think to select max(values)-min(values), and how about the others? However, I would insert a new function in CURVE FITTING of ImageJ. Best Regards. Gabriele Jim Quinn ha scritto: > Gabriele > > That is easy enough to fit in MSExcel or any spreadsheet. > > =$G$3+$G$1*((SIN(RADIANS($G$4*(A1-$G$2))))^$G$5) > > > G1 amp 1600 > G2 phase 105 > G3 vshift 55 > G4 freq 1.47 > G5 power 2 > > r-factor 0.154106, after a few hand-interations > > rf = sqrt (average ( rel error) ^2 ) ) > > see this URL for an GIF image of the plot: > http://www.matscieng.sunysb.edu/temp/gabriele.gif > > If you do a rolling normalization of the extrema > to 0 and 100%, then you should be able to get > the r-factor VERY small. > > JQuinn > > PS: I am sure that it is even easier in a commercial > or open math/graph program, such as Mathematica, MatLab, > SigmaPlot, Origin, R, Gnuplot, etc...... > > > > > At 04:29 AM 10/16/2008, you wrote: > >> Good morning, >> on ANALIZE-->TOOLS-->CURVE FITTING I need to fit a sinusoidal >> > profile for search the value of maximum and minimum of the points > to calculate the visibility of the fringes. Can you help me? in > curve fitting is not present a sin fitting and I would integrate it. > >> Thanks, Gabriele. >> >> >> 0 365.664428711 >> 1 395.969787598 >> 2 422.020141602 >> 3 447.006713867 >> 4 476.929534912 >> 5 506.124176025 >> 6 537.006713867 >> 7 568.711425781 >> 8 600.751647949 >> 9 644.385925293 >> 10 697.399353027 >> 11 734.197998047 >> 12 761.278503418 >> 13 784.530212402 >> 14 808.352355957 >> 15 834.661071777 >> 16 860.312072754 >> 17 889.916137695 >> 18 927.426147461 >> 19 967.093933105 >> 20 1004.379211426 >> 21 1038.426147461 >> 22 1080.355712891 >> 23 1112.604003906 >> 24 1146.865722656 >> 25 1174.265136719 >> 26 1190.530151367 >> 27 1205.892578125 >> 28 1210.989990234 >> 29 1210.919433594 >> 30 1201.929565430 >> 31 1202.194580078 >> 32 1215.647705078 >> 33 1241.761718750 >> 34 1274.187866211 >> 35 1307.093994141 >> 36 1339.795288086 >> 37 1368.359008789 >> 38 1384.614135742 >> 39 1386.050292969 >> 40 1370.214721680 >> 41 1367.187866211 >> 42 1383.825561523 >> 43 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1096.718139648 >> 186 1068.456420898 >> 187 1038.446289062 >> 188 1012.812072754 >> 189 987.899353027 >> 190 955.151000977 >> 191 915.174499512 >> 192 886.624145508 >> 193 864.473144531 >> 194 831.802001953 >> 195 796.667785645 >> 196 779.036926270 >> 197 771.828857422 >> 198 753.550354004 >> 199 713.526855469 >> 200 673.506713867 >> 201 641.953002930 >> 202 615.469787598 >> 203 574.375854492 >> 204 534.808715820 >> 205 502.986572266 >> 206 483.312072754 >> 207 457.231536865 >> 208 426.389251709 >> 209 389.385894775 >> 210 354.523498535 >> 211 322.802001953 >> 212 288.798645020 >> 213 257.798645020 >> 214 235.419464111 >> 215 217.124160767 >> 216 192.003356934 >> 217 180.382553101 >> 218 172.546981812 >> 219 162.073822021 >> 220 143.110733032 >> 221 126.838928223 >> 222 122.500000000 >> 223 119.855705261 >> 224 102.520133972 >> 225 89.399330139 >> 226 91.489929199 >> 227 95.093955994 >> 228 89.684562683 >> 229 84.687919617 >> 230 90.875839233 >> 231 101.583892822 >> 232 108.060401917 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>> 326 550.392639160 >> 327 510.379180908 >> 328 470.449676514 >> 329 439.835571289 >> 330 416.003356934 >> 331 385.218109131 >> 332 353.714752197 >> 333 327.429534912 >> 334 303.345642090 >> 335 282.677856445 >> 336 263.161071777 >> 337 245.124160767 >> 338 220.892623901 >> 339 193.687911987 >> 340 175.553695679 >> 341 163.765106201 >> 342 145.916107178 >> 343 126.791946411 >> 344 121.312080383 >> 345 119.483222961 >> 346 106.053688049 >> 347 91.976509094 >> 348 87.614097595 >> 349 90.597312927 >> 350 89.895973206 >> 351 87.422821045 >> 352 88.949661255 >> 353 96.372482300 >> 354 101.832214355 >> 355 104.986579895 >> 356 118.402687073 >> 357 140.372482300 >> 358 156.765106201 >> 359 169.104034424 >> 360 187.765106201 >> 361 215.352355957 >> 362 235.627517700 >> 363 249.785232544 >> 364 267.540283203 >> 365 296.590606689 >> 366 323.979858398 >> 367 346.271820068 >> 368 375.976501465 >> 369 422.755035400 >> 370 468.624176025 >> 371 502.177856445 >> 372 523.026855469 >> 373 554.805358887 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147.687911987 >> 467 124.077178955 >> 468 111.634231567 >> 469 106.845634460 >> 470 103.053688049 >> 471 94.157714844 >> 472 83.818794250 >> 473 83.291946411 >> 474 94.540267944 >> 475 99.224830627 >> 476 93.859062195 >> 477 98.244964600 >> 478 118.426177979 >> 479 135.879196167 >> 480 135.859054565 >> 481 138.869125366 >> 482 158.328857422 >> 483 190.580535889 >> 484 212.312088013 >> 485 222.369125366 >> 486 241.362411499 >> 487 277.211395264 >> 488 311.869140625 >> 489 328.805358887 >> 490 350.446319580 >> 491 393.637573242 >> 492 432.697998047 >> 493 462.979858398 >> 494 491.466430664 >> 495 529.369140625 >> 496 569.785217285 >> 497 594.523498535 >> 498 611.791931152 >> 499 647.513427734 >> 500 695.305358887 >> 501 742.342285156 >> 502 791.533569336 >> 503 842.177856445 >> 504 883.882568359 >> 505 902.127502441 >> 506 925.050354004 >> 507 958.500000000 >> 508 999.315429688 >> 509 1030.087280273 >> 510 1067.647705078 >> 511 1104.919433594 >> 512 1152.389282227 >> 513 1189.959716797 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471.755035400 >> 700 425.818786621 >> 701 387.003356934 >> 702 365.305358887 >> 703 336.909393311 >> 704 295.161071777 >> 705 266.093963623 >> 706 252.647644043 >> 707 233.617446899 >> 708 201.000000000 >> 709 172.966445923 >> 710 157.953018188 >> 711 147.701339722 >> 712 134.164428711 >> 713 118.214767456 >> 714 109.197982788 >> 715 106.812080383 >> 716 100.426177979 >> 717 89.248321533 >> 718 79.802017212 >> 719 76.741607666 >> 720 83.956375122 >> 721 95.751678467 >> 722 97.231544495 >> 723 99.365768433 >> 724 113.181205750 >> 725 133.520141602 >> 726 147.493286133 >> 727 161.543624878 >> 728 181.630874634 >> 729 208.781875610 >> 730 230.734893799 >> 731 251.053695679 >> 732 276.895965576 >> 733 313.107391357 >> 734 347.989929199 >> 735 373.449676514 >> 736 406.167785645 >> 737 453.439605713 >> 738 485.285247803 >> 739 503.265106201 >> 740 531.845642090 >> 741 585.516784668 >> 742 646.288574219 >> 743 686.859069824 >> 744 726.134216309 >> 745 781.855712891 >> 746 831.382568359 >> 747 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1215.523437500 >> 1248 1224.493286133 >> 1249 1226.090576172 >> 1250 1233.959716797 >> 1251 1257.389282227 >> 1252 1285.889282227 >> 1253 1309.979858398 >> 1254 1334.540283203 >> 1255 1361.728149414 >> 1256 1401.416137695 >> 1257 1449.208007812 >> 1258 1468.963134766 >> 1259 1475.959716797 >> 1260 1471.728149414 >> 1261 1472.382568359 >> 1262 1468.949707031 >> 1263 1455.271850586 >> 1264 1439.097290039 >> 1265 1462.285278320 >> 1266 1471.295288086 >> 1267 1461.862426758 >> > > > -- ================================================= Gabriele Umbriaco Dipartimento di Astronomia, Universita` di Padova Laboratorio d'ottica Padova/Asiago vicolo dell'Osservatorio 3 I-35122 Padova, Italy office: (+39) 049-8278215 fax: (+39) 049-8278212 laboratory PD: (+39) 049-8278213 laboratory AS: (+39) 0424-600058 email: [hidden email] |
In reply to this post by Fabrice Senger
Thanks this one helps, but with some time of learning :)
With best regards Peto 2008/10/16 Senger Fabrice <[hidden email]> > Peter Oslanec a écrit : > > Hi, I have some questions. Is there anybody to help me? >> >> I would like to get somebody to help me with: >> >> 1. define all gray values in the picture ( I think that this makes >> Historgram) >> 2. define gray values (range of gray values) for different areas in the >> picture (is in ImageJ possibility to label areas and measure gray values >> only in the area? ) >> 3. according to this range, change all pixels within the range into one >> color (that means that some areas on the picture will have only one color) >> >> Thanks. >> >> With best regards Peter. >> >> > It seems to me that you want to do segmentation, if you have prior knoledge > of how much regions you're interested in you could try k-means clustering. > It is a plugin you can find under "Plugins" , "Segmentation" ... > > Fabrice. > > -- > Senger Fabrice > |
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