Examples with ImagePortObjectSpec org.knime.core.node.port.image.ImagePortObjectSpec used on opensource projects

Example 1 with ImagePortObjectSpec

use of org.knime.core.node.port.image.ImagePortObjectSpec in project knime-core by knime.

the class ImageToTableNodeModel method configure.

/**
 * {@inheritDoc}
 */
@Override
protected PortObjectSpec[] configure(final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    ImagePortObjectSpec inspec = (ImagePortObjectSpec) inSpecs[0];
    DataTableSpec outspec = createResultSpec(inspec, m_columnNameModel.getStringValue());
    return new DataTableSpec[] { outspec };
}

Example 2 with ImagePortObjectSpec

use of org.knime.core.node.port.image.ImagePortObjectSpec in project knime-core by knime.

the class WritePNGNodeModel method configure.

/**
 * {@inheritDoc}
 */
@Override
protected PortObjectSpec[] configure(final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    String outPath = m_fileOutSettings.getStringValue();
    boolean overwriteOK = m_overwriteOKBoolean.getBooleanValue();
    if (outPath == null || outPath.length() == 0) {
        throw new InvalidSettingsException("No output path specified");
    }
    File f = new File(outPath);
    if (f.isDirectory()) {
        throw new InvalidSettingsException("Can't write to \"" + outPath + "\": it is a directory");
    }
    if (f.isFile() && !overwriteOK) {
        throw new InvalidSettingsException("Can't write to \"" + outPath + "\": file exists (configure overwrite in dialog)");
    }
    File directory = f.getParentFile();
    if (directory == null || !directory.isDirectory()) {
        throw new InvalidSettingsException("Can't write to \"" + outPath + "\": parent directory does not exist");
    }
    ImagePortObjectSpec imageInObject = (ImagePortObjectSpec) inSpecs[0];
    DataType dataType = imageInObject.getDataType();
    if (!dataType.isCompatible(PNGImageValue.class)) {
        throw new InvalidSettingsException("Unsupported image type, " + "expecting PNG input, got " + dataType);
    }
    return new PortObjectSpec[0];
}

Example 3 with ImagePortObjectSpec

use of org.knime.core.node.port.image.ImagePortObjectSpec in project knime-core by knime.

the class TableRowToImageNodeModel method configure.

/**
 * {@inheritDoc}
 */
@Override
protected PortObjectSpec[] configure(final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    DataTableSpec inSpec = (DataTableSpec) inSpecs[0];
    String column = m_imageColSettingsModel.getStringValue();
    int columnIndex = inSpec.findColumnIndex(column);
    if (columnIndex < 0) {
        columnIndex = findImageColumnIndex(inSpec);
        if (columnIndex >= 0) {
            setWarningMessage("Found image column '" + inSpec.getColumnSpec(columnIndex).getName() + "'.");
        }
    }
    if (columnIndex < 0) {
        String error = column == null ? "No image column in input" : "No such image column in input table: " + column;
        throw new InvalidSettingsException(error);
    }
    DataColumnSpec columnSpec = inSpec.getColumnSpec(columnIndex);
    if (!columnSpec.getType().isCompatible(ImageValue.class)) {
        throw new InvalidSettingsException("Column \"" + column + "\" does not contain images");
    }
    return new PortObjectSpec[] { new ImagePortObjectSpec(columnSpec.getType()) };
}

Example 4 with ImagePortObjectSpec

use of org.knime.core.node.port.image.ImagePortObjectSpec in project knime-core by knime.

the class TableRowToImageNodeModel method execute.

/**
 * {@inheritDoc}
 */
@Override
protected PortObject[] execute(final PortObject[] inObjects, final ExecutionContext exec) throws Exception {
    BufferedDataTable inTable = (BufferedDataTable) inObjects[0];
    // check for empty table
    if (inTable.size() == 0) {
        throw new IllegalArgumentException("Input table is empty.");
    }
    // warn if more than one row
    if (inTable.size() > 1) {
        setWarningMessage("Input data table has more than one rows! " + "Using first row only.");
    }
    String column = m_imageColSettingsModel.getStringValue();
    DataTableSpec inSpec = inTable.getDataTableSpec();
    int columnIndex = inSpec.findColumnIndex(column);
    if (columnIndex < 0) {
        columnIndex = findImageColumnIndex(inSpec);
    }
    ImagePortObjectSpec imagePortObjectSpec = new ImagePortObjectSpec(inSpec.getColumnSpec(columnIndex).getType());
    final RowIterator it = inTable.iterator();
    while (it.hasNext()) {
        DataRow row = it.next();
        DataCell cell = row.getCell(columnIndex);
        if (!cell.isMissing()) {
            ImageContent ic = ((ImageValue) cell).getImageContent();
            return new PortObject[] { new ImagePortObject(ic, imagePortObjectSpec) };
        } else {
            setWarningMessage("Found missing image cell, skipping it...");
        }
    }
    throw new IllegalArgumentException("Input table contains only missing cells.");
}

Example 5 with ImagePortObjectSpec

use of org.knime.core.node.port.image.ImagePortObjectSpec in project knime-core by knime.

the class WriteImageNodeModel method configure.

/**
 * {@inheritDoc}
 */
@Override
protected PortObjectSpec[] configure(final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    ImagePortObjectSpec imageInObject = (ImagePortObjectSpec) inSpecs[0];
    DataType dataType = imageInObject.getDataType();
    if (!dataType.isCompatible(ImageValue.class)) {
        throw new InvalidSettingsException("Unsupported image type");
    }
    // how ugly - we don't know the image extension upon execution, let's
    // hope the user gave it the correct extension (e.g. ".png") already,
    // otherwise the overwriteOK check may fail during configure
    String guessedExtension;
    if (dataType.isCompatible(PNGImageValue.class)) {
        guessedExtension = ".png";
    } else if (dataType.getPreferredValueClass().getSimpleName().equals("SvgImageValue")) {
        guessedExtension = ".svg";
    } else {
        guessedExtension = "";
    }
    getOutputLocation(guessedExtension, true);
    return new PortObjectSpec[0];
}