/** Frees memory by deleting a few slices from the end of the stack. */
public void trim() {
int n = (int) Math.round(Math.log(nSlices) + 1.0);
for (int i = 0; i < n; i++) {
deleteLastSlice();
System.gc();
}
}
void createEllipse(ImagePlus imp) {
IJ.showStatus("Fitting ellipse");
Roi roi = imp.getRoi();
if (roi == null) {
noRoi("Fit Ellipse");
return;
}
if (roi.isLine()) {
IJ.error("Fit Ellipse", "\"Fit Ellipse\" does not work with line selections");
return;
}
ImageProcessor ip = imp.getProcessor();
ip.setRoi(roi);
int options = Measurements.CENTROID + Measurements.ELLIPSE;
ImageStatistics stats = ImageStatistics.getStatistics(ip, options, null);
double dx = stats.major * Math.cos(stats.angle / 180.0 * Math.PI) / 2.0;
double dy = -stats.major * Math.sin(stats.angle / 180.0 * Math.PI) / 2.0;
double x1 = stats.xCentroid - dx;
double x2 = stats.xCentroid + dx;
double y1 = stats.yCentroid - dy;
double y2 = stats.yCentroid + dy;
double aspectRatio = stats.minor / stats.major;
imp.killRoi();
imp.setRoi(new EllipseRoi(x1, y1, x2, y2, aspectRatio));
}
public void fitSpline(int evaluationPoints) {
if (xpf == null) {
xpf = toFloat(xp);
ypf = toFloat(yp);
subPixel = true;
}
if (xSpline == null || splinePoints != evaluationPoints) {
splinePoints = evaluationPoints;
xSpline = new float[splinePoints];
ySpline = new float[splinePoints];
}
int nNodes = nPoints;
if (type == POLYGON) {
nNodes++;
if (nNodes >= xpf.length) enlargeArrays();
xpf[nNodes - 1] = xpf[0];
ypf[nNodes - 1] = ypf[0];
}
float[] xindex = new float[nNodes];
for (int i = 0; i < nNodes; i++) xindex[i] = i;
SplineFitter sfx = new SplineFitter(xindex, xpf, nNodes);
SplineFitter sfy = new SplineFitter(xindex, ypf, nNodes);
// Evaluate the splines at all points
double scale = (double) (nNodes - 1) / (splinePoints - 1);
float xs = 0f, ys = 0f;
float xmin = Float.MAX_VALUE, xmax = -xmin, ymin = xmin, ymax = xmax;
for (int i = 0; i < splinePoints; i++) {
double xvalue = i * scale;
xs = (float) sfx.evalSpline(xindex, xpf, nNodes, xvalue);
if (xs < xmin) xmin = xs;
if (xs > xmax) xmax = xs;
xSpline[i] = xs;
ys = (float) sfy.evalSpline(xindex, ypf, nNodes, xvalue);
if (ys < ymin) ymin = ys;
if (ys > ymax) ymax = ys;
ySpline[i] = ys;
}
int ixmin = (int) Math.floor(xmin + 0.5f);
int ixmax = (int) Math.floor(xmax + 0.5f);
int iymin = (int) Math.floor(ymin + 0.5f);
int iymax = (int) Math.floor(ymax + 0.5f);
if (ixmin != 0) {
for (int i = 0; i < nPoints; i++) xpf[i] -= ixmin;
for (int i = 0; i < splinePoints; i++) xSpline[i] -= ixmin;
}
if (iymin != 0) {
for (int i = 0; i < nPoints; i++) ypf[i] -= iymin;
for (int i = 0; i < splinePoints; i++) ySpline[i] -= iymin;
}
x += ixmin;
y += iymin;
width = ixmax - ixmin;
height = iymax - iymin;
bounds = null;
cachedMask = null;
// update protected xp and yp arrays for backward compatibility
xp = toInt(xpf, xp, nPoints);
yp = toInt(ypf, yp, nPoints);
}
private void getintbright() {
weights = new float[ncurves][xpts][ypts];
for (int i = 0; i < ncurves; i++) {
nmeas[i] = 0;
for (int j = 0; j < xpts; j++) {
for (int k = 0; k < ypts; k++) {
nmeas[i] += (int) pch[i][j][k];
}
}
double tempavg = 0.0;
double tempavg2 = 0.0;
double temp2avg = 0.0;
double temp2avg2 = 0.0;
double tempccavg = 0.0;
for (int j = 0; j < xpts; j++) {
for (int k = 0; k < ypts; k++) {
double normed = (double) pch[i][j][k] / (double) nmeas[i];
if (pch[i][j][k] > 0.0f) {
weights[i][j][k] = (float) ((double) nmeas[i] / (normed * (1.0f - normed)));
} else {
weights[i][j][k] = 1.0f;
}
tempavg += normed * (double) j;
tempavg2 += normed * (double) j * (double) j;
temp2avg += normed * (double) k;
temp2avg2 += normed * (double) k * (double) k;
tempccavg += normed * (double) k * (double) j;
}
}
tempccavg -= tempavg * temp2avg;
brightcc[i] = tempccavg / Math.sqrt(tempavg * temp2avg);
tempavg2 -= tempavg * tempavg;
tempavg2 /= tempavg;
bright1[i] = (tempavg2 - 1.0);
temp2avg2 -= temp2avg * temp2avg;
temp2avg2 /= temp2avg;
bright2[i] = (temp2avg2 - 1.0);
intensity1[i] = tempavg;
intensity2[i] = temp2avg;
if (psfflag == 0) {
bright1[i] /= 0.3536;
bright2[i] /= 0.3536;
brightcc[i] /= 0.3536;
} else {
if (psfflag == 1) {
bright1[i] /= 0.078;
bright2[i] /= 0.078;
brightcc[i] /= 0.078;
} else {
bright1[i] /= 0.5;
bright2[i] /= 0.5;
brightcc[i] /= 0.5;
}
}
number1[i] = intensity1[i] / bright1[i];
number2[i] = intensity2[i] / bright2[i];
brightmincc[i] = (bright1[i] * beta) * Math.sqrt(intensity1[i] / intensity2[i]);
}
}
/**
* Zooms out by making the source rectangle (srcRect) larger and centering it on (x,y). If we
* can't make it larger, then make the window smaller.
*/
public void zoomOut(int x, int y) {
if (magnification <= 0.03125) return;
double oldMag = magnification;
double newMag = getLowerZoomLevel(magnification);
double srcRatio = (double) srcRect.width / srcRect.height;
double imageRatio = (double) imageWidth / imageHeight;
double initialMag = imp.getWindow().getInitialMagnification();
if (Math.abs(srcRatio - imageRatio) > 0.05) {
double scale = oldMag / newMag;
int newSrcWidth = (int) Math.round(srcRect.width * scale);
int newSrcHeight = (int) Math.round(srcRect.height * scale);
if (newSrcWidth > imageWidth) newSrcWidth = imageWidth;
if (newSrcHeight > imageHeight) newSrcHeight = imageHeight;
int newSrcX = srcRect.x - (newSrcWidth - srcRect.width) / 2;
int newSrcY = srcRect.y - (newSrcHeight - srcRect.height) / 2;
if (newSrcX < 0) newSrcX = 0;
if (newSrcY < 0) newSrcY = 0;
srcRect = new Rectangle(newSrcX, newSrcY, newSrcWidth, newSrcHeight);
// IJ.log(newMag+" "+srcRect+" "+dstWidth+" "+dstHeight);
int newDstWidth = (int) (srcRect.width * newMag);
int newDstHeight = (int) (srcRect.height * newMag);
setMagnification(newMag);
setMaxBounds();
// IJ.log(newDstWidth+" "+dstWidth+" "+newDstHeight+" "+dstHeight);
if (newDstWidth < dstWidth || newDstHeight < dstHeight) {
// IJ.log("pack");
setDrawingSize(newDstWidth, newDstHeight);
imp.getWindow().pack();
} else repaint();
return;
}
if (imageWidth * newMag > dstWidth) {
int w = (int) Math.round(dstWidth / newMag);
if (w * newMag < dstWidth) w++;
int h = (int) Math.round(dstHeight / newMag);
if (h * newMag < dstHeight) h++;
x = offScreenX(x);
y = offScreenY(y);
Rectangle r = new Rectangle(x - w / 2, y - h / 2, w, h);
if (r.x < 0) r.x = 0;
if (r.y < 0) r.y = 0;
if (r.x + w > imageWidth) r.x = imageWidth - w;
if (r.y + h > imageHeight) r.y = imageHeight - h;
srcRect = r;
} else {
srcRect = new Rectangle(0, 0, imageWidth, imageHeight);
setDrawingSize((int) (imageWidth * newMag), (int) (imageHeight * newMag));
// setDrawingSize(dstWidth/2, dstHeight/2);
imp.getWindow().pack();
}
// IJ.write(newMag + " " + srcRect.x+" "+srcRect.y+" "+srcRect.width+" "+srcRect.height+"
// "+dstWidth + " " + dstHeight);
setMagnification(newMag);
// IJ.write(srcRect.x + " " + srcRect.width + " " + dstWidth);
setMaxBounds();
repaint();
}
double rodbard(double x) {
// y = c*((a-x/(x-d))^(1/b)
// a=3.9, b=.88, c=712, d=44
double ex;
if (x == 0.0) ex = 5.0;
else ex = Math.exp(Math.log(x / 700.0) * 0.88);
double y = 3.9 - 44.0;
y = y / (1.0 + ex);
return y + 44.0;
}
/* Creates a spline fitted polygon with one pixel segment lengths
that can be retrieved using the getFloatPolygon() method. */
public void fitSplineForStraightening() {
fitSpline((int) getUncalibratedLength() * 2);
if (splinePoints == 0) return;
float[] xpoints = new float[splinePoints * 2];
float[] ypoints = new float[splinePoints * 2];
xpoints[0] = xSpline[0];
ypoints[0] = ySpline[0];
int n = 1, n2;
double inc = 0.01;
double distance = 0.0, distance2 = 0.0, dx = 0.0, dy = 0.0, xinc, yinc;
double x, y, lastx, lasty, x1, y1, x2 = xSpline[0], y2 = ySpline[0];
for (int i = 1; i < splinePoints; i++) {
x1 = x2;
y1 = y2;
x = x1;
y = y1;
x2 = xSpline[i];
y2 = ySpline[i];
dx = x2 - x1;
dy = y2 - y1;
distance = Math.sqrt(dx * dx + dy * dy);
xinc = dx * inc / distance;
yinc = dy * inc / distance;
lastx = xpoints[n - 1];
lasty = ypoints[n - 1];
// n2 = (int)(dx/xinc);
n2 = (int) (distance / inc);
if (splinePoints == 2) n2++;
do {
dx = x - lastx;
dy = y - lasty;
distance2 = Math.sqrt(dx * dx + dy * dy);
// IJ.log(i+" "+IJ.d2s(xinc,5)+" "+IJ.d2s(yinc,5)+" "+IJ.d2s(distance,2)+"
// "+IJ.d2s(distance2,2)+" "+IJ.d2s(x,2)+" "+IJ.d2s(y,2)+" "+IJ.d2s(lastx,2)+"
// "+IJ.d2s(lasty,2)+" "+n+" "+n2);
if (distance2 >= 1.0 - inc / 2.0 && n < xpoints.length - 1) {
xpoints[n] = (float) x;
ypoints[n] = (float) y;
// IJ.log("--- "+IJ.d2s(x,2)+" "+IJ.d2s(y,2)+" "+n);
n++;
lastx = x;
lasty = y;
}
x += xinc;
y += yinc;
} while (--n2 > 0);
}
xSpline = xpoints;
ySpline = ypoints;
splinePoints = n;
}
String getAngleAsString() {
double angle1 = 0.0;
double angle2 = 0.0;
if (xpf != null) {
angle1 = getFloatAngle(xpf[0], ypf[0], xpf[1], ypf[1]);
angle2 = getFloatAngle(xpf[1], ypf[1], xpf[2], ypf[2]);
} else {
angle1 = getFloatAngle(xp[0], yp[0], xp[1], yp[1]);
angle2 = getFloatAngle(xp[1], yp[1], xp[2], yp[2]);
}
degrees = Math.abs(180 - Math.abs(angle1 - angle2));
if (degrees > 180.0) degrees = 360.0 - degrees;
double degrees2 = Prefs.reflexAngle && type == ANGLE ? 360.0 - degrees : degrees;
return ", angle=" + IJ.d2s(degrees2);
}
void drawRoiLabel(Graphics g, int index, Roi roi) {
Rectangle r = roi.getBounds();
int x = screenX(r.x);
int y = screenY(r.y);
double mag = getMagnification();
int width = (int) (r.width * mag);
int height = (int) (r.height * mag);
int size = width > 40 && height > 40 ? 12 : 9;
if (font != null) {
g.setFont(font);
size = font.getSize();
} else if (size == 12) g.setFont(largeFont);
else g.setFont(smallFont);
boolean drawingList = index >= LIST_OFFSET;
if (drawingList) index -= LIST_OFFSET;
String label = "" + (index + 1);
if (drawNames && roi.getName() != null) label = roi.getName();
FontMetrics metrics = g.getFontMetrics();
int w = metrics.stringWidth(label);
x = x + width / 2 - w / 2;
y = y + height / 2 + Math.max(size / 2, 6);
int h = metrics.getAscent() + metrics.getDescent();
if (bgColor != null) {
g.setColor(bgColor);
g.fillRoundRect(x - 1, y - h + 2, w + 1, h - 3, 5, 5);
}
if (!drawingList && labelRects != null && index < labelRects.length)
labelRects[index] = new Rectangle(x - 1, y - h + 2, w + 1, h);
g.setColor(labelColor);
g.drawString(label, x, y - 2);
g.setColor(defaultColor);
}
void Contrast(ImagePlus imp, int radius, double par1, double par2, boolean doIwhite) {
// G. Landini, 2013
// Based on a simple contrast toggle. This procedure does not have user-provided paramters other
// than the kernel radius
// Sets the pixel value to either white or black depending on whether its current value is
// closest to the local Max or Min respectively
// The procedure is similar to Toggle Contrast Enhancement (see Soille, Morphological Image
// Analysis (2004), p. 259
ImagePlus Maximp, Minimp;
ImageProcessor ip = imp.getProcessor(), ipMax, ipMin;
int c_value = 0;
int mid_gray;
byte object;
byte backg;
if (doIwhite) {
object = (byte) 0xff;
backg = (byte) 0;
} else {
object = (byte) 0;
backg = (byte) 0xff;
}
Maximp = duplicateImage(ip);
ipMax = Maximp.getProcessor();
RankFilters rf = new RankFilters();
rf.rank(ipMax, radius, rf.MAX); // Maximum
// Maximp.show();
Minimp = duplicateImage(ip);
ipMin = Minimp.getProcessor();
rf.rank(ipMin, radius, rf.MIN); // Minimum
// Minimp.show();
byte[] pixels = (byte[]) ip.getPixels();
byte[] max = (byte[]) ipMax.getPixels();
byte[] min = (byte[]) ipMin.getPixels();
for (int i = 0; i < pixels.length; i++) {
pixels[i] =
((Math.abs((int) (max[i] & 0xff - pixels[i] & 0xff))
<= Math.abs((int) (pixels[i] & 0xff - min[i] & 0xff))))
? object
: backg;
}
// imp.updateAndDraw();
return;
}
void adjustSourceRect(double newMag, int x, int y) {
// IJ.log("adjustSourceRect1: "+newMag+" "+dstWidth+" "+dstHeight);
int w = (int) Math.round(dstWidth / newMag);
if (w * newMag < dstWidth) w++;
int h = (int) Math.round(dstHeight / newMag);
if (h * newMag < dstHeight) h++;
x = offScreenX(x);
y = offScreenY(y);
Rectangle r = new Rectangle(x - w / 2, y - h / 2, w, h);
if (r.x < 0) r.x = 0;
if (r.y < 0) r.y = 0;
if (r.x + w > imageWidth) r.x = imageWidth - w;
if (r.y + h > imageHeight) r.y = imageHeight - h;
srcRect = r;
setMagnification(newMag);
// IJ.log("adjustSourceRect2: "+srcRect+" "+dstWidth+" "+dstHeight);
}
int[] smooth(int[] a, int n) {
FloatProcessor fp = new FloatProcessor(n, 1);
for (int i = 0; i < n; i++) fp.putPixelValue(i, 0, a[i]);
GaussianBlur gb = new GaussianBlur();
gb.blur1Direction(fp, 2.0, 0.01, true, 0);
for (int i = 0; i < n; i++) a[i] = (int) Math.round(fp.getPixelValue(i, 0));
return a;
}
/*------------------------------------------------------------------*/
double getInitialCausalCoefficientMirrorOnBounds(double[] c, double z, double tolerance) {
double z1 = z, zn = Math.pow(z, c.length - 1);
double sum = c[0] + zn * c[c.length - 1];
int horizon = c.length;
if (0.0 < tolerance) {
horizon = 2 + (int) (Math.log(tolerance) / Math.log(Math.abs(z)));
horizon = (horizon < c.length) ? (horizon) : (c.length);
}
zn = zn * zn;
for (int n = 1; (n < (horizon - 1)); n++) {
zn = zn / z;
sum = sum + (z1 + zn) * c[n];
z1 = z1 * z;
}
return (sum / (1.0 - Math.pow(z, 2 * c.length - 2)));
} /* end getInitialCausalCoefficientMirrorOnBounds */
/**
* Returns the perimeter length of ROIs created using the wand tool and the particle analyzer. The
* algorithm counts edge pixels as 1 and corner pixels as sqrt(2). It does this by calculating the
* total length of the ROI boundary and subtracting 2-sqrt(2) for each non-adjacent corner. For
* example, a 1x1 pixel ROI has a boundary length of 4 and 2 non-adjacent edges so the perimeter
* is 4-2*(2-sqrt(2)). A 2x2 pixel ROI has a boundary length of 8 and 4 non-adjacent edges so the
* perimeter is 8-4*(2-sqrt(2)).
*/
double getTracedPerimeter() {
int sumdx = 0;
int sumdy = 0;
int nCorners = 0;
int dx1 = xp[0] - xp[nPoints - 1];
int dy1 = yp[0] - yp[nPoints - 1];
int side1 = Math.abs(dx1) + Math.abs(dy1); // one of these is 0
boolean corner = false;
int nexti, dx2, dy2, side2;
for (int i = 0; i < nPoints; i++) {
nexti = i + 1;
if (nexti == nPoints) nexti = 0;
dx2 = xp[nexti] - xp[i];
dy2 = yp[nexti] - yp[i];
sumdx += Math.abs(dx1);
sumdy += Math.abs(dy1);
side2 = Math.abs(dx2) + Math.abs(dy2);
if (side1 > 1 || !corner) {
corner = true;
nCorners++;
} else corner = false;
dx1 = dx2;
dy1 = dy2;
side1 = side2;
}
double w = 1.0, h = 1.0;
if (imp != null) {
Calibration cal = imp.getCalibration();
w = cal.pixelWidth;
h = cal.pixelHeight;
}
return sumdx * w + sumdy * h - (nCorners * ((w + h) - Math.sqrt(w * w + h * h)));
}
/** Draws an outline of this OvalRoi on the image. */
public void drawPixels(ImageProcessor ip) {
Polygon p = getPolygon();
if (p.npoints > 0) {
int saveWidth = ip.getLineWidth();
if (getStrokeWidth() > 1f) ip.setLineWidth((int) Math.round(getStrokeWidth()));
ip.drawPolygon(p);
ip.setLineWidth(saveWidth);
}
if (Line.getWidth() > 1 || getStrokeWidth() > 1) updateFullWindow = true;
}
PolygonRoi trimPolygon(PolygonRoi roi, double length) {
int[] x = roi.getXCoordinates();
int[] y = roi.getYCoordinates();
int n = roi.getNCoordinates();
x = smooth(x, n);
y = smooth(y, n);
float[] curvature = getCurvature(x, y, n);
Rectangle r = roi.getBounds();
double threshold = rodbard(length);
// IJ.log("trim: "+length+" "+threshold);
double distance = Math.sqrt((x[1] - x[0]) * (x[1] - x[0]) + (y[1] - y[0]) * (y[1] - y[0]));
x[0] += r.x;
y[0] += r.y;
int i2 = 1;
int x1, y1, x2 = 0, y2 = 0;
for (int i = 1; i < n - 1; i++) {
x1 = x[i];
y1 = y[i];
x2 = x[i + 1];
y2 = y[i + 1];
distance += Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1)) + 1;
distance += curvature[i] * 2;
if (distance >= threshold) {
x[i2] = x2 + r.x;
y[i2] = y2 + r.y;
i2++;
distance = 0.0;
}
}
int type = roi.getType() == Roi.FREELINE ? Roi.POLYLINE : Roi.POLYGON;
if (type == Roi.POLYLINE && distance > 0.0) {
x[i2] = x2 + r.x;
y[i2] = y2 + r.y;
i2++;
}
PolygonRoi p = new PolygonRoi(x, y, i2, type);
if (roi.getStroke() != null) p.setStrokeWidth(roi.getStrokeWidth());
p.setStrokeColor(roi.getStrokeColor());
p.setName(roi.getName());
imp.setRoi(p);
return p;
}
public void postProcess() {
double stdDev;
double n = num;
for (int i = 0; i < len; i++) {
if (num > 1) {
stdDev = (n * sum2[i] - sum[i] * sum[i]) / n;
if (stdDev > 0.0) result[i] = (float) Math.sqrt(stdDev / (n - 1.0));
else result[i] = 0f;
} else result[i] = 0f;
}
}
public void run(String arg) {
int[] wList = WindowManager.getIDList();
if (wList == null) {
IJ.error("No images are open.");
return;
}
double thalf = 0.5;
boolean keep;
GenericDialog gd = new GenericDialog("Bleach correction");
gd.addNumericField("t½:", thalf, 1);
gd.addCheckbox("Keep source stack:", true);
gd.showDialog();
if (gd.wasCanceled()) return;
long start = System.currentTimeMillis();
thalf = gd.getNextNumber();
keep = gd.getNextBoolean();
if (keep) IJ.run("Duplicate...", "title='Bleach corrected' duplicate");
ImagePlus imp1 = WindowManager.getCurrentImage();
int d1 = imp1.getStackSize();
double v1, v2;
int width = imp1.getWidth();
int height = imp1.getHeight();
ImageProcessor ip1, ip2, ip3;
int slices = imp1.getStackSize();
ImageStack stack1 = imp1.getStack();
ImageStack stack2 = imp1.getStack();
int currentSlice = imp1.getCurrentSlice();
for (int n = 1; n <= slices; n++) {
ip1 = stack1.getProcessor(n);
ip3 = stack1.getProcessor(1);
ip2 = stack2.getProcessor(n);
for (int x = 0; x < width; x++) {
for (int y = 0; y < height; y++) {
v1 = ip1.getPixelValue(x, y);
v2 = ip3.getPixelValue(x, y);
// =B8/(EXP(-C$7*A8))
v1 = (v1 / Math.exp(-n * thalf));
ip2.putPixelValue(x, y, v1);
}
}
IJ.showProgress((double) n / slices);
IJ.showStatus(n + "/" + slices);
}
// stack2.show();
imp1.updateAndDraw();
}
void handleMouseMove(int sx, int sy) {
// Do rubber banding
int tool = Toolbar.getToolId();
if (!(tool == Toolbar.POLYGON || tool == Toolbar.POLYLINE || tool == Toolbar.ANGLE)) {
imp.deleteRoi();
imp.draw();
return;
}
drawRubberBand(sx, sy);
degrees = Double.NaN;
double len = -1;
if (nPoints > 1) {
double x1, y1, x2, y2;
if (xpf != null) {
x1 = xpf[nPoints - 2];
y1 = ypf[nPoints - 2];
x2 = xpf[nPoints - 1];
y2 = ypf[nPoints - 1];
} else {
x1 = xp[nPoints - 2];
y1 = yp[nPoints - 2];
x2 = xp[nPoints - 1];
y2 = yp[nPoints - 1];
}
degrees =
getAngle(
(int) Math.round(x1),
(int) Math.round(y1),
(int) Math.round(x2),
(int) Math.round(y2));
if (tool != Toolbar.ANGLE) {
Calibration cal = imp.getCalibration();
double pw = cal.pixelWidth, ph = cal.pixelHeight;
if (IJ.altKeyDown()) {
pw = 1.0;
ph = 1.0;
}
len = Math.sqrt((x2 - x1) * pw * (x2 - x1) * pw + (y2 - y1) * ph * (y2 - y1) * ph);
}
}
if (tool == Toolbar.ANGLE) {
if (nPoints == 2) angle1 = degrees;
else if (nPoints == 3) {
double angle2 = getAngle(xp[1], yp[1], xp[2], yp[2]);
degrees = Math.abs(180 - Math.abs(angle1 - angle2));
if (degrees > 180.0) degrees = 360.0 - degrees;
}
}
String length = len != -1 ? ", length=" + IJ.d2s(len) : "";
double degrees2 =
tool == Toolbar.ANGLE && nPoints == 3 && Prefs.reflexAngle ? 360.0 - degrees : degrees;
String angle = !Double.isNaN(degrees) ? ", angle=" + IJ.d2s(degrees2) : "";
int ox = ic != null ? ic.offScreenX(sx) : sx;
int oy = ic != null ? ic.offScreenY(sy) : sy;
IJ.showStatus(imp.getLocationAsString(ox, oy) + length + angle);
}
PolygonRoi trimFloatPolygon(PolygonRoi roi, double length) {
FloatPolygon poly = roi.getFloatPolygon();
float[] x = poly.xpoints;
float[] y = poly.ypoints;
int n = poly.npoints;
x = smooth(x, n);
y = smooth(y, n);
float[] curvature = getCurvature(x, y, n);
double threshold = rodbard(length);
// IJ.log("trim: "+length+" "+threshold);
double distance = Math.sqrt((x[1] - x[0]) * (x[1] - x[0]) + (y[1] - y[0]) * (y[1] - y[0]));
int i2 = 1;
double x1, y1, x2 = 0, y2 = 0;
for (int i = 1; i < n - 1; i++) {
x1 = x[i];
y1 = y[i];
x2 = x[i + 1];
y2 = y[i + 1];
distance += Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1)) + 1;
distance += curvature[i] * 2;
if (distance >= threshold) {
x[i2] = (float) x2;
y[i2] = (float) y2;
i2++;
distance = 0.0;
}
}
int type = roi.getType() == Roi.FREELINE ? Roi.POLYLINE : Roi.POLYGON;
if (type == Roi.POLYLINE && distance > 0.0) {
x[i2] = (float) x2;
y[i2] = (float) y2;
i2++;
}
PolygonRoi p = new PolygonRoi(x, y, i2, type);
if (roi.getStroke() != null) p.setStrokeWidth(roi.getStrokeWidth());
p.setStrokeColor(roi.getStrokeColor());
p.setDrawOffset(roi.getDrawOffset());
p.setName(roi.getName());
imp.setRoi(p);
return p;
}
double getFloatSmoothedPerimeter() {
double length = getSmoothedLineLength();
double w2 = 1.0, h2 = 1.0;
if (imp != null) {
Calibration cal = imp.getCalibration();
w2 = cal.pixelWidth * cal.pixelWidth;
h2 = cal.pixelHeight * cal.pixelHeight;
}
double dx = xpf[nPoints - 1] - xpf[0];
double dy = ypf[nPoints - 1] - ypf[0];
length += Math.sqrt(dx * dx * w2 + dy * dy * h2);
return length;
}
double getFloatSmoothedLineLength() {
double length = 0.0;
double w2 = 1.0;
double h2 = 1.0;
double dx, dy;
if (imp != null) {
Calibration cal = imp.getCalibration();
w2 = cal.pixelWidth * cal.pixelWidth;
h2 = cal.pixelHeight * cal.pixelHeight;
}
dx = (xpf[0] + xpf[1] + xpf[2]) / 3.0 - xpf[0];
dy = (ypf[0] + ypf[1] + ypf[2]) / 3.0 - ypf[0];
length += Math.sqrt(dx * dx * w2 + dy * dy * h2);
for (int i = 1; i < nPoints - 2; i++) {
dx = (xpf[i + 2] - xpf[i - 1]) / 3.0;
dy = (ypf[i + 2] - ypf[i - 1]) / 3.0;
length += Math.sqrt(dx * dx * w2 + dy * dy * h2);
}
dx = xpf[nPoints - 1] - (xpf[nPoints - 3] + xpf[nPoints - 2] + xpf[nPoints - 1]) / 3.0;
dy = ypf[nPoints - 1] - (ypf[nPoints - 3] + ypf[nPoints - 2] + ypf[nPoints - 1]) / 3.0;
length += Math.sqrt(dx * dx * w2 + dy * dy * h2);
return length;
}
void addSelection() {
ImagePlus imp = IJ.getImage();
String macroOptions = Macro.getOptions();
if (macroOptions != null && IJ.macroRunning() && macroOptions.indexOf("remove") != -1) {
imp.setOverlay(null);
return;
}
Roi roi = imp.getRoi();
if (roi == null && imp.getOverlay() != null) {
GenericDialog gd = new GenericDialog("No Selection");
gd.addMessage("\"Overlay>Add\" requires a selection.");
gd.setInsets(15, 40, 0);
gd.addCheckbox("Remove existing overlay", false);
gd.showDialog();
if (gd.wasCanceled()) return;
if (gd.getNextBoolean()) imp.setOverlay(null);
return;
}
if (roi == null) {
IJ.error("This command requires a selection.");
return;
}
roi = (Roi) roi.clone();
if (roi.getStrokeColor() == null) roi.setStrokeColor(Toolbar.getForegroundColor());
int width = Line.getWidth();
Rectangle bounds = roi.getBounds();
boolean tooWide = width > Math.max(bounds.width, bounds.height) / 3.0;
if (roi.getStroke() == null && width > 1 && !tooWide) roi.setStrokeWidth(Line.getWidth());
Overlay overlay = imp.getOverlay();
if (overlay != null && overlay.size() > 0 && !roi.isDrawingTool()) {
Roi roi2 = overlay.get(overlay.size() - 1);
if (roi.getStroke() == null) roi.setStrokeWidth(roi2.getStrokeWidth());
if (roi.getFillColor() == null) roi.setFillColor(roi2.getFillColor());
}
boolean points = roi instanceof PointRoi && ((PolygonRoi) roi).getNCoordinates() > 1;
if (points) roi.setStrokeColor(Color.red);
if (!IJ.altKeyDown() && !(roi instanceof Arrow)) {
RoiProperties rp = new RoiProperties("Add to Overlay", roi);
if (!rp.showDialog()) return;
}
String name = roi.getName();
boolean newOverlay = name != null && name.equals("new-overlay");
if (overlay == null || newOverlay) overlay = new Overlay();
overlay.add(roi);
imp.setOverlay(overlay);
overlay2 = overlay;
if (points || (roi instanceof ImageRoi) || (roi instanceof Arrow)) imp.killRoi();
Undo.setup(Undo.OVERLAY_ADDITION, imp);
}
/*
* For a list of r² values, find the smallest r1² values such that a "ball"
* of radius r1 centered at (dx,dy,dz) includes a "ball" of radius r
* centered at the origin. "Ball" refers to a 3D integer grid.
*/
int[] scanCube(int dx, int dy, int dz, int[] distSqValues) {
final int numRadii = distSqValues.length;
int[] r1Sq = new int[numRadii];
if ((dx == 0) && (dy == 0) && (dz == 0)) {
for (int rSq = 0; rSq < numRadii; rSq++) {
r1Sq[rSq] = Integer.MAX_VALUE;
}
} else {
final int dxAbs = -(int) Math.abs(dx);
final int dyAbs = -(int) Math.abs(dy);
final int dzAbs = -(int) Math.abs(dz);
for (int rSqInd = 0; rSqInd < numRadii; rSqInd++) {
final int rSq = distSqValues[rSqInd];
int max = 0;
final int r = 1 + (int) Math.sqrt(rSq);
int scank, scankj;
int dk, dkji;
// int iBall;
int iPlus;
for (int k = 0; k <= r; k++) {
scank = k * k;
dk = (k - dzAbs) * (k - dzAbs);
for (int j = 0; j <= r; j++) {
scankj = scank + j * j;
if (scankj <= rSq) {
iPlus = ((int) Math.sqrt(rSq - scankj)) - dxAbs;
dkji = dk + (j - dyAbs) * (j - dyAbs) + iPlus * iPlus;
if (dkji > max) max = dkji;
}
}
}
r1Sq[rSqInd] = max;
}
}
return r1Sq;
}
public void fitToWindow() {
ImageWindow win = imp.getWindow();
if (win == null) return;
Rectangle bounds = win.getBounds();
Insets insets = win.getInsets();
int sliderHeight = (win instanceof StackWindow) ? 20 : 0;
double xmag = (double) (bounds.width - 10) / srcRect.width;
double ymag = (double) (bounds.height - (10 + insets.top + sliderHeight)) / srcRect.height;
setMagnification(Math.min(xmag, ymag));
int width = (int) (imageWidth * magnification);
int height = (int) (imageHeight * magnification);
if (width == dstWidth && height == dstHeight) return;
srcRect = new Rectangle(0, 0, imageWidth, imageHeight);
setDrawingSize(width, height);
getParent().doLayout();
}
/** Returns the perimeter (for ROIs) or length (for lines). */
public double getLength() {
if (type == TRACED_ROI) return getTracedPerimeter();
if (nPoints > 2) {
if (type == FREEROI) return getSmoothedPerimeter();
else if (type == FREELINE && !(width == 0 || height == 0)) return getSmoothedLineLength();
}
double length = 0.0;
int dx, dy;
double w2 = 1.0, h2 = 1.0;
if (imp != null) {
Calibration cal = imp.getCalibration();
w2 = cal.pixelWidth * cal.pixelWidth;
h2 = cal.pixelHeight * cal.pixelHeight;
}
if (xSpline != null) {
double fdx, fdy;
for (int i = 0; i < (splinePoints - 1); i++) {
fdx = xSpline[i + 1] - xSpline[i];
fdy = ySpline[i + 1] - ySpline[i];
length += Math.sqrt(fdx * fdx * w2 + fdy * fdy * h2);
}
if (type == POLYGON) {
fdx = xSpline[0] - xSpline[splinePoints - 1];
fdy = ySpline[0] - ySpline[splinePoints - 1];
length += Math.sqrt(fdx * fdx * w2 + fdy * fdy * h2);
}
} else if (xpf != null) {
double fdx, fdy;
for (int i = 0; i < (nPoints - 1); i++) {
fdx = xpf[i + 1] - xpf[i];
fdy = ypf[i + 1] - ypf[i];
length += Math.sqrt(fdx * fdx * w2 + fdy * fdy * h2);
}
if (type == POLYGON) {
fdx = xpf[0] - xpf[nPoints - 1];
fdy = ypf[0] - ypf[nPoints - 1];
length += Math.sqrt(fdx * fdx * w2 + fdy * fdy * h2);
}
} else {
for (int i = 0; i < (nPoints - 1); i++) {
dx = xp[i + 1] - xp[i];
dy = yp[i + 1] - yp[i];
length += Math.sqrt(dx * dx * w2 + dy * dy * h2);
}
if (type == POLYGON) {
dx = xp[0] - xp[nPoints - 1];
dy = yp[0] - yp[nPoints - 1];
length += Math.sqrt(dx * dx * w2 + dy * dy * h2);
}
}
return length;
}
float[] getCurvature(float[] x, float[] y, int n) {
float[] x2 = new float[n];
float[] y2 = new float[n];
for (int i = 0; i < n; i++) {
x2[i] = x[i];
y2[i] = y[i];
}
ImageProcessor ipx = new FloatProcessor(n, 1, x, null);
ImageProcessor ipy = new FloatProcessor(n, 1, y, null);
ipx.convolve(kernel, kernel.length, 1);
ipy.convolve(kernel, kernel.length, 1);
float[] indexes = new float[n];
float[] curvature = new float[n];
for (int i = 0; i < n; i++) {
indexes[i] = i;
curvature[i] =
(float) Math.sqrt((x2[i] - x[i]) * (x2[i] - x[i]) + (y2[i] - y[i]) * (y2[i] - y[i]));
}
return curvature;
}
byte[] read1bitImage(InputStream in) throws IOException {
if (fi.compression == FileInfo.LZW)
throw new IOException("ImageJ cannot open 1-bit LZW compressed TIFFs");
int scan = (int) Math.ceil(width / 8.0);
int len = scan * height;
byte[] buffer = new byte[len];
byte[] pixels = new byte[nPixels];
DataInputStream dis = new DataInputStream(in);
dis.readFully(buffer);
int value1, value2, offset, index;
for (int y = 0; y < height; y++) {
offset = y * scan;
index = y * width;
for (int x = 0; x < scan; x++) {
value1 = buffer[offset + x] & 0xff;
for (int i = 7; i >= 0; i--) {
value2 = (value1 & (1 << i)) != 0 ? 255 : 0;
if (index < pixels.length) pixels[index++] = (byte) value2;
}
}
}
return pixels;
}
public boolean dialogItemChanged(GenericDialog gd, AWTEvent e) {
int width = imp.getWidth();
int height = imp.getHeight();
type = gd.getNextChoice();
areaPerPoint = gd.getNextNumber();
color = gd.getNextChoice();
randomOffset = gd.getNextBoolean();
double minArea = (width * height) / 50000.0;
if (type.equals(types[1]) && minArea < 144.0) minArea = 144.0;
else if (minArea < 16) minArea = 16.0;
if (areaPerPoint / (pixelWidth * pixelHeight) < minArea) {
String err = "\"Area per Point\" too small";
if (gd.wasOKed()) IJ.error("Grid", err);
else IJ.showStatus(err);
return true;
}
double tileSize = Math.sqrt(areaPerPoint);
tileWidth = tileSize / pixelWidth;
tileHeight = tileSize / pixelHeight;
if (randomOffset) {
xstart = (int) (random.nextDouble() * tileWidth);
ystart = (int) (random.nextDouble() * tileHeight);
} else {
xstart = (int) (tileWidth / 2.0 + 0.5);
ystart = (int) (tileHeight / 2.0 + 0.5);
}
linesV = (int) ((width - xstart) / tileWidth) + 1;
linesH = (int) ((height - ystart) / tileHeight) + 1;
if (gd.invalidNumber()) return true;
if (type.equals(types[0])) drawLines();
else if (type.equals(types[1])) drawCrosses();
else if (type.equals(types[2])) drawPoints();
else showGrid(null);
return true;
}
/*------------------------------------------------------------------*/
void getSplineInterpolationCoefficients(double[] c, double tolerance) {
double z[] = {Math.sqrt(3.0) - 2.0};
double lambda = 1.0;
if (c.length == 1) {
return;
}
for (int k = 0; (k < z.length); k++) {
lambda = lambda * (1.0 - z[k]) * (1.0 - 1.0 / z[k]);
}
for (int n = 0; (n < c.length); n++) {
c[n] = c[n] * lambda;
}
for (int k = 0; (k < z.length); k++) {
c[0] = getInitialCausalCoefficientMirrorOnBounds(c, z[k], tolerance);
for (int n = 1; (n < c.length); n++) {
c[n] = c[n] + z[k] * c[n - 1];
}
c[c.length - 1] = getInitialAntiCausalCoefficientMirrorOnBounds(c, z[k], tolerance);
for (int n = c.length - 2; (0 <= n); n--) {
c[n] = z[k] * (c[n + 1] - c[n]);
}
}
} /* end getSplineInterpolationCoefficients */