ImageJ base code to get access to all the classes and their methods to test new Plugins. https://imagejdocu.tudor.lu/howto/plugins/the_imagej_eclipse_howto
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80 lines
2.0 KiB
80 lines
2.0 KiB
//Smooth Wand version 1d
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//N.Vischer
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//01.07.17 20:20
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var count, polyX, polyY
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getSelectionBounds(x, y, w, h);
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if (w<2 || h<2)
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exit("Width and height must be > 1 px");
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if (selectionType != 4)
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exit("No traced selection found");
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getThreshold(lowThr, hiThr);
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getSelectionCoordinates(xx, yy);
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len = xx.length;
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polyX = newArray(len);
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polyY = newArray(len);
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count = 0;
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for(jj = 0; jj < len; jj++) {
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x1 = xx[jj];
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y1 = yy[jj];
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x2 = xx[(jj+1)%len];
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y2 = yy[(jj+1)%len];
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dd = 1;
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if (y1 == y2) {//horizontal separator
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if (x1 > x2) dd = -1;
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for(x = x1; x != x2; x+= dd){
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processPixelPair(x, y1, x+dd, y1);
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}
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}
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else {//vertical separator
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if (y1 > y2) dd = -1;
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for(y = y1; y != y2; y+= dd){
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processPixelPair(x1, y, x1, y+dd);
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}
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}
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}
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polyX = Array.trim(polyX, count);
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polyY = Array.trim(polyY, count);
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makeSelection("polygon", polyX, polyY);
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run("Interpolate", "interval=1 adjust"); //after button released
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//processes neighbors of this separator line and adds vertex
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function processPixelPair(x1, y1, x2, y2) {
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if (x1 == x2) {
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val1 = getPixel(x1, minOf(y1, y2));
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val2 = getPixel(x1 - 1, minOf(y1, y2));
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}
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if (y1 == y2){
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val1 = getPixel(minOf(x1, x2), y1);
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val2 = getPixel(minOf(x1, x2), y1 -1);
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}
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bright = maxOf(val1, val2);
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dark = minOf(val1, val2);
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if (bright>=lowThr && dark<=lowThr)
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thr = lowThr;
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if (bright>=hiThr && dark<=hiThr)
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thr = hiThr;
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if (dark==bright)
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fraction = 0.5;
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else
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fraction = (thr - dark)/(bright - dark);
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if (val1 < val2)
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fraction = 1 - fraction;
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if (y1 == y2) {
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newY = minOf(y1, y2) + fraction - 0.5;
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newX = (x1 + x2)/2;
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}
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if (x1 == x2) {
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newX = minOf(x1, x2) + fraction - 0.5;
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newY = (y1 + y2)/2;
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}
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polyX[count] = newX;
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polyY[count] = newY;
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count++;
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if (count == polyX.length){
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polyX = Array.concat(polyX, polyX);
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polyY = Array.concat(polyY, polyY);
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}
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}
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