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/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2011, Open Source Geospatial Foundation (OSGeo)
 *    (C) 2004-2005, Open Geospatial Consortium Inc.
 *
 *    All Rights Reserved. http://www.opengis.org/legal/
 */
package org.opengis.metadata.content;

import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;

import org.opengis.annotation.UML;
import org.opengis.metadata.Identifier;

/**
 * Information about an image's suitability for use.
 *
 * @version ISO 19115
 * @author Martin Desruisseaux (IRD)
 * @author Cory Horner (Refractions Research)
 * @since GeoAPI 2.0
 */
@UML(identifier = "MD_ImageDescription", specification = ISO_19115)
public interface ImageDescription extends CoverageDescription {
    /**
     * Illumination elevation measured in degrees clockwise from the target plane at intersection of
     * the optical line of sight with the Earth's surface. For images from a scanning device, refer
     * to the centre pixel of the image.
     *
     * @return A value between -90° and +90°, or {@code null} if unspecified.
     */
    @UML(
        identifier = "illuminationElevationAngle",
        obligation = OPTIONAL,
        specification = ISO_19115
    )
    Double getIlluminationElevationAngle();

    /**
     * Illumination azimuth measured in degrees clockwise from true north at the time the image is
     * taken. For images from a scanning device, refer to the centre pixel of the image.
     *
     * @return A value between 0° and 360°, or {@code null} if unspecified.
     */
    @UML(identifier = "illuminationAzimuthAngle", obligation = OPTIONAL, specification = ISO_19115)
    Double getIlluminationAzimuthAngle();

    /**
     * Conditions affected the image.
     *
     * @return Conditions affected the image, or {@code null} if unknown.
     */
    @UML(identifier = "imagingCondition", obligation = OPTIONAL, specification = ISO_19115)
    ImagingCondition getImagingCondition();

    /**
     * Specifies the image quality.
     *
     * @return The image quality, or {@code null} if unknown.
     */
    @UML(identifier = "imageQualityCode", obligation = OPTIONAL, specification = ISO_19115)
    Identifier getImageQualityCode();

    /**
     * Area of the dataset obscured by clouds, expressed as a percentage of the spatial extent.
     *
     * @return A value between 0 and 100, or {@code null} if unknown.
     */
    @UML(identifier = "cloudCoverPercentage", obligation = OPTIONAL, specification = ISO_19115)
    Double getCloudCoverPercentage();

    /**
     * Image distributor's code that identifies the level of radiometric and geometric processing
     * that has been applied.
     *
     * @return The level of radiometric and geometric processing that has been applied, or {@code
     *     null} if unknown.
     */
    @UML(identifier = "processingLevelCode", obligation = OPTIONAL, specification = ISO_19115)
    Identifier getProcessingLevelCode();

    /**
     * Count of the number the number of lossy compression cycles performed on the image. Returns
     * {@code null} if the information is not provided.
     *
     * @return The number the number of lossy compression cycles performed on the image, or {@code
     *     null} if unknown.
     */
    @UML(
        identifier = "compressionGenerationQuantity",
        obligation = OPTIONAL,
        specification = ISO_19115
    )
    Integer getCompressionGenerationQuantity();

    /**
     * Indication of whether or not triangulation has been performed upon the image. Returns {@code
     * null} if the information is not provided.
     *
     * @return Whether or not triangulation has been performed upon the image, or {@code null} if
     *     unknown.
     */
    @UML(identifier = "triangulationIndicator", obligation = OPTIONAL, specification = ISO_19115)
    Boolean getTriangulationIndicator();

    /**
     * Indication of whether or not the radiometric calibration information for generating the
     * radiometrically calibrated standard data product is available.
     *
     * @return Whether or not the radiometric calibration information is available, or {@code null}
     *     if unknown.
     */
    @UML(
        identifier = "radiometricCalibrationDataAvailability",
        obligation = OPTIONAL,
        specification = ISO_19115
    )
    Boolean isRadiometricCalibrationDataAvailable();

    /**
     * Indication of whether or not constants are available which allow for camera calibration
     * corrections.
     *
     * @return Whether or not constants are available for camera calibration corrections, or {@code
     *     null} if unknown.
     */
    @UML(
        identifier = "cameraCalibrationInformationAvailability",
        obligation = OPTIONAL,
        specification = ISO_19115
    )
    Boolean isCameraCalibrationInformationAvailable();

    /**
     * Indication of whether or not Calibration Reseau information is available.
     *
     * @return Whether or not Calibration Reseau information is available, or {@code null} if
     *     unknown.
     */
    @UML(
        identifier = "filmDistortionInformationAvailability",
        obligation = OPTIONAL,
        specification = ISO_19115
    )
    Boolean isFilmDistortionInformationAvailable();

    /**
     * Indication of whether or not lens aberration correction information is available.
     *
     * @return Whether or not lens aberration correction information is available, or {@code null}
     *     if unknown.
     */
    @UML(
        identifier = "lensDistortionInformationAvailability",
        obligation = OPTIONAL,
        specification = ISO_19115
    )
    Boolean isLensDistortionInformationAvailable();
}