PhotometricInterpreter.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.imaging.formats.tiff.photometricinterpreters;
import java.io.IOException;
import java.util.Objects;
import org.apache.commons.imaging.ImagingException;
import org.apache.commons.imaging.common.ImageBuilder;
/**
* Interpreter for photometric information in TIFF images. The photometric interpretation tag is a requirement for valid TIFF images, and defines the color
* space of the image data.
*
* @see <a href= "https://www.awaresystems.be/imaging/tiff/tifftags/photometricinterpretation.html"> Baseline TIFF Tag PhotometricInterpretation</a>
*/
public abstract class PhotometricInterpreter {
protected final int samplesPerPixel;
private final int[] bitsPerSample;
protected final int predictor;
protected final int width;
protected final int height;
public PhotometricInterpreter(final int samplesPerPixel, final int[] bitsPerSample, final int predictor, final int width, final int height) {
this.samplesPerPixel = samplesPerPixel;
this.bitsPerSample = Objects.requireNonNull(bitsPerSample, "bitsPerSample");
this.predictor = predictor;
this.width = width;
this.height = height;
}
protected int getBitsPerSample(final int offset) {
return bitsPerSample[offset];
}
public abstract void interpretPixel(ImageBuilder imageBuilder, int[] samples, int x, int y) throws ImagingException, IOException;
}