use of mpicbg.trakem2.util.Pair in project AntennaPod by AntennaPod.
the class CustomMRControllerDialog method fetchArt.
private Pair<Bitmap, Integer> fetchArt(@NonNull MediaDescriptionCompat description) {
Bitmap iconBitmap = description.getIconBitmap();
Uri iconUri = description.getIconUri();
Bitmap art = null;
if (iconBitmap != null) {
art = iconBitmap;
} else if (iconUri != null) {
try {
art = Glide.with(getContext().getApplicationContext()).load(iconUri.toString()).asBitmap().diskCacheStrategy(ApGlideSettings.AP_DISK_CACHE_STRATEGY).into(Target.SIZE_ORIGINAL, Target.SIZE_ORIGINAL).get();
} catch (InterruptedException | ExecutionException e) {
Log.e(TAG, "Image art load failed", e);
}
}
int backgroundColor = 0;
if (art != null && art.getWidth() * 9 < art.getHeight() * 16) {
// Portrait art requires dominant color as background color.
Palette palette = new Palette.Builder(art).maximumColorCount(1).generate();
backgroundColor = palette.getSwatches().isEmpty() ? 0 : palette.getSwatches().get(0).getRgb();
}
return new Pair<>(art, backgroundColor);
}
use of mpicbg.trakem2.util.Pair in project GDSC-SMLM by aherbert.
the class ApacheLVMFitter method computeFit.
public FitStatus computeFit(double[] y, final double[] y_fit, double[] a, double[] a_dev) {
int n = y.length;
try {
// Different convergence thresholds seem to have no effect on the resulting fit, only the number of
// iterations for convergence
final double initialStepBoundFactor = 100;
final double costRelativeTolerance = 1e-10;
final double parRelativeTolerance = 1e-10;
final double orthoTolerance = 1e-10;
final double threshold = Precision.SAFE_MIN;
// Extract the parameters to be fitted
final double[] initialSolution = getInitialSolution(a);
// TODO - Pass in more advanced stopping criteria.
// Create the target and weight arrays
final double[] yd = new double[n];
final double[] w = new double[n];
for (int i = 0; i < n; i++) {
yd[i] = y[i];
w[i] = 1;
}
LevenbergMarquardtOptimizer optimizer = new LevenbergMarquardtOptimizer(initialStepBoundFactor, costRelativeTolerance, parRelativeTolerance, orthoTolerance, threshold);
//@formatter:off
LeastSquaresBuilder builder = new LeastSquaresBuilder().maxEvaluations(Integer.MAX_VALUE).maxIterations(getMaxEvaluations()).start(initialSolution).target(yd).weight(new DiagonalMatrix(w));
if (f instanceof ExtendedNonLinearFunction && ((ExtendedNonLinearFunction) f).canComputeValuesAndJacobian()) {
// Compute together, or each individually
builder.model(new ValueAndJacobianFunction() {
final ExtendedNonLinearFunction fun = (ExtendedNonLinearFunction) f;
public Pair<RealVector, RealMatrix> value(RealVector point) {
final double[] p = point.toArray();
final Pair<double[], double[][]> result = fun.computeValuesAndJacobian(p);
return new Pair<RealVector, RealMatrix>(new ArrayRealVector(result.getFirst(), false), new Array2DRowRealMatrix(result.getSecond(), false));
}
public RealVector computeValue(double[] params) {
return new ArrayRealVector(fun.computeValues(params), false);
}
public RealMatrix computeJacobian(double[] params) {
return new Array2DRowRealMatrix(fun.computeJacobian(params), false);
}
});
} else {
// Compute separately
builder.model(new MultivariateVectorFunctionWrapper((NonLinearFunction) f, a, n), new MultivariateMatrixFunctionWrapper((NonLinearFunction) f, a, n));
}
LeastSquaresProblem problem = builder.build();
Optimum optimum = optimizer.optimize(problem);
final double[] parameters = optimum.getPoint().toArray();
setSolution(a, parameters);
iterations = optimum.getIterations();
evaluations = optimum.getEvaluations();
if (a_dev != null) {
try {
double[][] covar = optimum.getCovariances(threshold).getData();
setDeviationsFromMatrix(a_dev, covar);
} catch (SingularMatrixException e) {
// Matrix inversion failed. In order to return a solution
// return the reciprocal of the diagonal of the Fisher information
// for a loose bound on the limit
final int[] gradientIndices = f.gradientIndices();
final int nparams = gradientIndices.length;
GradientCalculator calculator = GradientCalculatorFactory.newCalculator(nparams);
double[][] alpha = new double[nparams][nparams];
double[] beta = new double[nparams];
calculator.findLinearised(nparams, y, a, alpha, beta, (NonLinearFunction) f);
FisherInformationMatrix m = new FisherInformationMatrix(alpha);
setDeviations(a_dev, m.crlb(true));
}
}
// Compute function value
if (y_fit != null) {
Gaussian2DFunction f = (Gaussian2DFunction) this.f;
f.initialise0(a);
f.forEach(new ValueProcedure() {
int i = 0;
public void execute(double value) {
y_fit[i] = value;
}
});
}
// As this is unweighted then we can do this to get the sum of squared residuals
// This is the same as optimum.getCost() * optimum.getCost(); The getCost() function
// just computes the dot product anyway.
value = optimum.getResiduals().dotProduct(optimum.getResiduals());
} catch (TooManyEvaluationsException e) {
return FitStatus.TOO_MANY_EVALUATIONS;
} catch (TooManyIterationsException e) {
return FitStatus.TOO_MANY_ITERATIONS;
} catch (ConvergenceException e) {
// Occurs when QR decomposition fails - mark as a singular non-linear model (no solution)
return FitStatus.SINGULAR_NON_LINEAR_MODEL;
} catch (Exception e) {
// TODO - Find out the other exceptions from the fitter and add return values to match.
return FitStatus.UNKNOWN;
}
return FitStatus.OK;
}
use of mpicbg.trakem2.util.Pair in project Remindy by abicelis.
the class UnprogrammedTaskViewHolder method onClick.
@Override
public void onClick(View view) {
int id = view.getId();
switch(id) {
case R.id.item_task_unprogrammed_container:
Pair[] pairs = new Pair[1];
pairs[0] = new Pair<View, String>(mCategoryIcon, mFragment.getResources().getString(R.string.transition_task_list_category));
//pairs[1] = new Pair<View, String>(mTitle, mFragment.getResources().getString(R.string.transition_task_list_title));
//pairs[2] = new Pair<View, String>(mDescription, mFragment.getResources().getString(R.string.transition_task_list_description));
ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(mFragment.getActivity(), pairs);
Intent openTaskDetailActivity = new Intent(mFragment.getActivity(), TaskDetailActivity.class);
openTaskDetailActivity.putExtra(TaskDetailActivity.TASK_ID_TO_DISPLAY, mCurrent.getId());
openTaskDetailActivity.putExtra(TaskDetailActivity.TASK_POSITION, mReminderPosition);
if (mClickListener != null) {
mClickListener.onItemClicked(mReminderPosition, openTaskDetailActivity, options.toBundle());
}
break;
}
}
use of mpicbg.trakem2.util.Pair in project Remindy by abicelis.
the class ProgrammedOneTimeTaskViewHolder method onClick.
@Override
public void onClick(View view) {
int id = view.getId();
switch(id) {
case R.id.item_task_programmed_one_time_container:
Pair[] pairs = new Pair[1];
pairs[0] = new Pair<View, String>(mCategoryIcon, mFragment.getResources().getString(R.string.transition_task_list_category));
//pairs[1] = new Pair<View, String>(mTitle, mFragment.getResources().getString(R.string.transition_task_list_title));
//pairs[2] = new Pair<View, String>(mDescription, mFragment.getResources().getString(R.string.transition_task_list_description));
ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(mFragment.getActivity(), pairs);
Intent openTaskDetailActivity = new Intent(mFragment.getActivity(), TaskDetailActivity.class);
openTaskDetailActivity.putExtra(TaskDetailActivity.TASK_ID_TO_DISPLAY, mCurrent.getId());
openTaskDetailActivity.putExtra(TaskDetailActivity.TASK_POSITION, mReminderPosition);
if (mClickListener != null) {
mClickListener.onItemClicked(mReminderPosition, openTaskDetailActivity, options.toBundle());
}
break;
}
}
use of mpicbg.trakem2.util.Pair in project Remindy by abicelis.
the class ImageAttachmentViewHolder method launchImageViewAttachmentActivity.
private void launchImageViewAttachmentActivity() {
Pair[] pairs = new Pair[1];
pairs[0] = new Pair<View, String>(mImage, mActivity.getResources().getString(R.string.transition_image_attachment_image));
ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(mActivity, pairs);
Intent goToViewImageAttachmentActivity = new Intent(mActivity, ViewImageAttachmentActivity.class);
goToViewImageAttachmentActivity.putExtra(ViewImageAttachmentActivity.IMAGE_ATTACHMENT_EXTRA, mCurrent);
goToViewImageAttachmentActivity.putExtra(ViewImageAttachmentActivity.HOLDER_POSITION_EXTRA, mPosition);
mActivity.startActivityForResult(goToViewImageAttachmentActivity, ViewImageAttachmentActivity.VIEW_IMAGE_ATTACHMENT_REQUEST_CODE, options.toBundle());
}
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