root / trunk / libraries / libCq_CMS_praster / src / org / cresques / io / datastruct / Histogram.java @ 8026
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* cresques@gmail.com
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*/
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package org.cresques.io.datastruct; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.awt.image.BufferedImage; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileNotFoundException; |
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import java.io.IOException; |
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import java.io.Writer; |
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import org.cresques.io.data.Grid; |
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import org.cresques.io.data.RasterBuf; |
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import org.cresques.px.Extent; |
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import org.cresques.px.PxRaster; |
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import org.cresques.util.Utilities; |
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import org.kxml2.io.KXmlParser; |
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import org.xmlpull.v1.XmlPullParserException; |
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/**
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* Clase para la gesti?n de histogramas de un raster. Es la encargada del calculo de un histograma
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* total o parcial de un raster a partir de los datos de disco. Este calculo se hace leyendo los
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* datos por bloques para no cargarlo completamente en memoria. Adem?s tambi?n es la encargada de gestionar
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* salvar este histograma a .rmf. En caso de que solicite un histograma del raster completo este ir?
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* a buscarlo al fichero rmf asociado antes de calcularlo por si ya existise. Al realizar el calculo
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* del histograma de la imagen completa este ser? salvado en el fichero .rmf asociado al raster.
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*
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* @author Nacho Brodin (brodin_ign@gva.es)
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*/
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public class Histogram extends Thread{ |
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/**
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* Tama?o del bloque de calculo de histograma. La lectura del raster se divide en partes
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* de BLOCK de altura para no cargar todo el raster en memoria de una vez.
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*/
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private static final int BLOCK = 512; |
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private Grid grid = null; |
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/**
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* Flag que dice si el histograma a calcualar es el seleccionado en el area de interes
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* o el histograma completo.
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*/
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private boolean calcFullHistogram = true; |
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/**
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* Histograma de la imagen completa
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*/
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private int[][] histogram = null; |
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/**
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* Histograma acumulado de la imagen completa
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*/
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private int[][] accumulatedHistogram = null; |
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/**
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* Variables que definen una ?rea de interes
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*/
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private int xAOI, yAOI, widthAOI, heightAOI; |
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/**
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* Porcentaje que lleva construido el histograma
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*/
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private int percent = 0; |
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/**
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* Variable que estar? a true si el histograma esta siendo leido desde fichero .rmf y false
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* si ha sido calculado. En este ?ltimo caso se salvar? a disco una vez termine de ser calculado
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*/
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private boolean[] isReadingFromRMF = null; |
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/**
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* Renderizador para el calculo de histogramas a partir
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* de la visualizaci?n.
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*/
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private PxRaster pxRaster = null; |
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/**
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* Histograma de la vista
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*/
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private int[][] viewHistogram = null; |
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/**
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* Bandas que solicita el cliente. Cada elemento del array es una banda, si est? a true se devuelve
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* esa banda con histograma calculado y si est? a false se devolver? esa banda con el histograma a 0.
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* Este array solo es ten?do en cuenta para el histograma con fuente de datos reales y no para el de
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* la visualizaci?n.
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*/
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private boolean[] showBands = {true, true, true}; |
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/**
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* Writer para modificar o crear los archivos .rmf.
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*/
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private Writer writer = null; |
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/**
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* Herramientas para la persistencia del histograma;
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*/
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private HistogramPersistence tools = null; |
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/**
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* Constructor
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* @param grid
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*/
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public Histogram(Grid grid){
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addGrid(grid); |
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} |
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/**
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* Sustituye el grid del histograma
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* @param grid
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*/
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public void addGrid(Grid grid){ |
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this.grid = grid;
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isReadingFromRMF = new boolean[grid.getBandCount()]; |
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} |
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/**
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* Obtiene el grid asociado al histograma
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* @return Grid
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*/
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public Grid getGrid() {
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return grid;
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} |
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/**
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* Obtiene el renderizador asociado al histograma
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* @return PxRaster
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*/
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public PxRaster getRenderizer() {
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return pxRaster;
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} |
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/**
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* Asigna el renderizador para el calculo de histogramas a partir
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* de la visualizaci?n.
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* @param pxR Renderizador.
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*/
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public void addRenderizer(PxRaster pxR){ |
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this.pxRaster = pxR;
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} |
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/**
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* Asigna un area de interes para el calculo de histograma
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* @param x Posici?n X del area de interes
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* @param y Posici?n Y del area de interes
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* @param w Ancho del ?rea de interes
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* @param h Alto del ?rea de interes
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*/
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public void setAreaOfInterest(int x, int y, int w, int h){ |
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this.xAOI = x;
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this.yAOI = y;
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this.widthAOI = w;
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this.heightAOI = h;
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} |
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/**
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* Obtiene el histograma de la imagen completa en caso de que este ya haya sido
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* calculado. Si histogram es null habr? que llamar a la funci?n calcFullHistogram para
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* calcularlo.
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* @return histograma de la imagen completa
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*/
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public int[][] getFullHistogram(){ |
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return histogram;
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} |
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/**
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* Obtiene el histograma acumulado de la imagen completa en caso de que este ya haya sido
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* calculado. Si histogram es null habr? que llamar a la funci?n calcFullAccumulatedHistogram para
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* calcularlo.
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* @return histograma acumulado de la imagen completa
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*/
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public int[][] getFullAccumulatedHistogram(){ |
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histogram = null;
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histogram = readFullHistogramFromRMF(); |
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return accumulatedHistogram;
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} |
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/**
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* Obtiene el histograma desde el fichero RMF si tiene
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* @return
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*/
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private int[][] readFullHistogramFromRMF(){ |
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String fName = null; |
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String values = null; |
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String[] vect = null; |
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File fl = null; |
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KXmlParser parser = new KXmlParser();
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int [][] hist = null; |
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int index = 0; |
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boolean end = false; |
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boolean exists = false; |
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hist = new int [grid.getGeoRasterMultiFile().getBandCount()][256]; |
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try{
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for(int i = 0 ; i < grid.getGeoRasterMultiFile().getFileCount() ; i++){ |
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fName = grid.getGeoRasterMultiFile().getFile(i).getName(); |
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fl = new File(fName.substring(0, fName.lastIndexOf(".") + 1) + "rmf"); |
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exists = false;
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if (!fl.exists())
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return null; |
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else{
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parser.setInput(new FileInputStream(fl.getPath()), null); |
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int tag = parser.next();
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parser.require(parser.START_TAG, null, "RasterMetaFile"); |
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tag = parser.next(); |
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end = false;
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while(!end){
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switch(tag){
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case KXmlParser.TEXT:
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tag = parser.next(); |
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break;
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case KXmlParser.START_TAG:
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if (parser.getName().equals("Band")){ |
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parser.require(KXmlParser.START_TAG, null, "Band"); |
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parser.nextTag(); |
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parser.require(KXmlParser.START_TAG, null, "Values"); |
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values = parser.nextText(); |
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parser.require(KXmlParser.END_TAG, null, "Values"); |
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tag = parser.nextTag(); |
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parser.require(KXmlParser.END_TAG, null, "Band"); |
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exists = true;
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vect = new String[256]; |
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vect = values.split(" ");
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for(int j = 0 ; j < 256 ; j++){ |
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if (showBands[index])
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hist[index][j] = Integer.valueOf(vect[j]).intValue();
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else
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hist[index][j] = 0;
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} |
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index++; |
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} |
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tag = parser.next(); |
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break;
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case KXmlParser.END_TAG:
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if(parser.getName().equals("RasterMetaFile")) |
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end = true;
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tag = parser.next(); |
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break;
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default:
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tag = parser.next(); |
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} |
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} |
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if (!exists)
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return null; |
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} |
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} |
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}catch(XmlPullParserException e){
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return null; |
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}catch(FileNotFoundException ex){ |
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return null; |
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}catch(IOException exc){ |
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return null; |
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} |
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return hist;
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} |
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/**
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* Obtiene el histograma desde el fichero RMF si tiene y calcula a partir de
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* este el acumulado
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* @return
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*/
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public int[][] readFullAccumulatedHistogramFromRMF(){ |
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//TODO: implementar readFullAccumulatedHistogramFromRMF()
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this.readFullHistogramFromRMF();
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//.....
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return null; |
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} |
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/**
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* Escribe el histograma en el fichero RMF de disco asociado al raster. Esta escritura
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* solo se realiza si no se ha leido de RMF
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*/
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public void writeFullHistogramToRMF() throws IOException{ |
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File rmfFile = null; |
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String grfName = null; |
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tools = new HistogramPersistence();
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int[][] grfHistogram = null; |
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//Cuando solo existe un GeoRasterFile en el Grid
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if (grid.getGeoRasterMultiFile().getFileCount() == 1) |
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if (!isReadingFromRMF[0]){ |
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grfName = grid.getGeoRasterMultiFile().getFile(0).getName();
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int grfBands = grid.getGeoRasterMultiFile().getFile(0).getBandCount(); |
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tools.makeRMFHistogram(histogram, grfName, grfBands); |
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} |
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//Si el Grid contiene mas de un GeoRasterFile
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if (grid.getGeoRasterMultiFile().getFileCount() > 1){ |
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for (int i = 0; i < grid.getGeoRasterMultiFile().getFileCount() ; i++){ |
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int grfBands = grid.getGeoRasterMultiFile().getFile(i).getBandCount();
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int grfCount = 0; |
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grfName = grid.getGeoRasterMultiFile().getFile(i).getName(); |
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boolean isReading = false; |
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grfHistogram = new int[grfBands][256]; |
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for (int j = 0 ; j < grid.getBandCount() ; j++){ |
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if (grid.getGeoRasterMultiFile().getBands().getBandStringList()[j].equals(grfName)){
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grfHistogram[grfCount] = histogram[j]; |
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grfCount++; |
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//if(isReadingFromRMF[j])
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//isReading = true;
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} |
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} |
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if (!isReading)
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tools.makeRMFHistogram(grfHistogram, grfName, grfBands); |
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} |
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} |
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} |
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/**
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* Calcula el histograma de la imagen completa.
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*/
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public synchronized void run(){ |
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while(true){ |
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//Asignamos las bandas que van a dibujarse
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int[] drawableBands = new int[grid.getBandCount()]; |
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for(int i = 0; i < grid.getBandCount(); i++) |
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drawableBands[i] = i; |
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grid.clearDrawableBand(); |
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grid.addDrawableBands(drawableBands); |
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int heightArea = grid.getHeight();
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int widthArea = grid.getWidth();
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int poxInitX = 0; |
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int lastY = 0; |
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if(!calcFullHistogram){ //Calculo del histograma en el ?rea de interes |
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heightArea = heightAOI; |
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widthArea = widthAOI; |
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poxInitX = xAOI; |
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lastY = yAOI; |
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} |
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//Calculamos bloques de tama?o BLOCK para no leer toda la imagen de golpe
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int nBlocks = (int)(heightArea / BLOCK); |
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int lastBlock = heightArea - (nBlocks * BLOCK);
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int incrPercent = (int)(100 / (nBlocks + 1)); |
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switch(grid.getDataType()){
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case RasterBuf.TYPE_BYTE: byteHistogram(poxInitX, lastY, widthArea, nBlocks, lastBlock, incrPercent); break; |
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case RasterBuf.TYPE_SHORT: shortHistogram(poxInitX, lastY, widthArea, nBlocks, lastBlock, incrPercent); break; |
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case RasterBuf.TYPE_INT: intHistogram(poxInitX, lastY, widthArea, nBlocks, lastBlock, incrPercent); break; |
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} |
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percent = 100;
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//Si hemos calculado el histograma de la imagen completa lo salvamos a disco
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if(calcFullHistogram)
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try{
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writeFullHistogramToRMF(); |
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}catch(IOException ex){ |
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System.err.println("No se ha podido guardar el histograma"); |
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} |
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grid.free(); |
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this.suspend();
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} |
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} |
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/**
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* Calcula el histograma para tipo de datos byte
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* @param nBlocks N?mero de bloques
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* @param lastBlock Tama?o del ?ltimo bloque
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* @param lastY posici?n Y donde empieza el primer bloque
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*/
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private void byteHistogram(int x, int lastY, int widthArea, int nBlocks, int lastBlock, int incrPercent){ |
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histogram = new int[grid.getBandCount()][Utilities.MAX_BYTE_BIT_VALUE + 1]; |
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for(int nBlock = 0; nBlock < nBlocks; nBlock++){ |
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grid.setAreaOfInterest(x, lastY, widthArea, BLOCK); |
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RasterBuf raster = grid.getRasterBuf(); |
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for(int iBand = 0; iBand < grid.getBandCount(); iBand ++) |
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for(int line = 0; line < BLOCK; line ++) |
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for(int col = 0; col < widthArea; col ++) |
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histogram[iBand][(raster.getElemByte(line, col, iBand) & 0xff)]++;
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lastY += BLOCK; |
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percent += incrPercent; |
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} |
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grid.setAreaOfInterest(x, lastY, widthArea, lastBlock); |
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RasterBuf raster = grid.getRasterBuf(); |
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for(int iBand = 0; iBand < grid.getBandCount(); iBand ++) |
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for(int line = 0; line < lastBlock; line ++) |
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for(int col = 0; col < widthArea; col ++) |
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histogram[iBand][(raster.getElemByte(line, col, iBand) & 0xff)]++;
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accumulateAllDataTypes(Utilities.MAX_BYTE_BIT_VALUE + 1); |
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} |
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/**
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* Calcula el histograma para tipo de datos short
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* @param nBlocks N?mero de bloques
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* @param lastBlock Tama?o del ?ltimo bloque
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* @param lastY posici?n Y donde empieza el primer bloque
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*/
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private void shortHistogram(int x, int lastY, int widthArea, int nBlocks, int lastBlock, int incrPercent){ |
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histogram = new int[grid.getBandCount()][Utilities.MAX_SHORT_BIT_VALUE + 1]; |
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for(int nBlock = 0; nBlock < nBlocks; nBlock++){ |
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grid.setAreaOfInterest(x, lastY, widthArea, BLOCK); |
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RasterBuf raster = grid.getRasterBuf(); |
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for(int iBand = 0; iBand < grid.getBandCount(); iBand ++) |
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for(int line = 0; line < BLOCK; line ++) |
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for(int col = 0; col < widthArea; col ++) |
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histogram[iBand][(raster.getElemShort(line, col, iBand) & 0xffff)]++;
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lastY += BLOCK; |
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percent += incrPercent; |
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} |
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grid.setAreaOfInterest(x, lastY, widthArea, lastBlock); |
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RasterBuf raster = grid.getRasterBuf(); |
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for(int iBand = 0; iBand < grid.getBandCount(); iBand ++) |
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for(int line = 0; line < lastBlock; line ++) |
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for(int col = 0; col < widthArea; col ++) |
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histogram[iBand][(raster.getElemShort(line, col, iBand) & 0xffff)]++;
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accumulateAllDataTypes(Utilities.MAX_SHORT_BIT_VALUE + 1); |
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} |
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|
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/**
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* Calcula el histograma para tipo de datos short
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* @param nBlocks N?mero de bloques
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* @param lastBlock Tama?o del ?ltimo bloque
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* @param lastY posici?n Y donde empieza el primer bloque
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*/
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private void intHistogram(int x, int lastY, int widthArea, int nBlocks, int lastBlock, int incrPercent){ |
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histogram = new int[grid.getBandCount()][Utilities.MAX_SHORT_BIT_VALUE + 1]; |
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for(int nBlock = 0; nBlock < nBlocks; nBlock++){ |
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grid.setAreaOfInterest(x, lastY, widthArea, BLOCK); |
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RasterBuf raster = grid.getRasterBuf(); |
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for(int iBand = 0; iBand < grid.getBandCount(); iBand ++) |
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for(int line = 0; line < BLOCK; line ++) |
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for(int col = 0; col < widthArea; col ++) |
| 446 |
histogram[iBand][(raster.getElemInt(line, col, iBand) & 0xffff)]++;
|
| 447 |
lastY += BLOCK; |
| 448 |
percent += incrPercent; |
| 449 |
} |
| 450 |
grid.setAreaOfInterest(x, lastY, widthArea, lastBlock); |
| 451 |
RasterBuf raster = grid.getRasterBuf(); |
| 452 |
for(int iBand = 0; iBand < grid.getBandCount(); iBand ++) |
| 453 |
for(int line = 0; line < lastBlock; line ++) |
| 454 |
for(int col = 0; col < widthArea; col ++) |
| 455 |
histogram[iBand][(raster.getElemInt(line, col, iBand) & 0xffff)]++;
|
| 456 |
|
| 457 |
accumulateAllDataTypes(Utilities.MAX_SHORT_BIT_VALUE + 1); |
| 458 |
} |
| 459 |
|
| 460 |
/**
|
| 461 |
* Calcula el histograma acumulado a partir del normal ya calculado. Esta llamada es usada para
|
| 462 |
* el histograma a partir de la fuente de datos. Adem?s de calcular el acumulado elimina las
|
| 463 |
* bandas que no se han pedido
|
| 464 |
* @param nValues N?mero de valores del histograma
|
| 465 |
*/
|
| 466 |
private void accumulateAllDataTypes(int nValues){ |
| 467 |
//Acumulado, adem?s eliminamos bandas que no se han pedido
|
| 468 |
accumulatedHistogram = new int[grid.getBandCount()][nValues]; |
| 469 |
for(int iBand = 0; iBand < accumulatedHistogram.length; iBand++){ |
| 470 |
if(showBands[iBand])
|
| 471 |
accumulatedHistogram[iBand][0] = histogram[iBand][0]; |
| 472 |
else
|
| 473 |
histogram[iBand][0] = 0; |
| 474 |
for(int i = 1; i < accumulatedHistogram[iBand].length; i++){ |
| 475 |
if(showBands[iBand])
|
| 476 |
accumulatedHistogram[iBand][i] = histogram[iBand][i] + accumulatedHistogram[iBand][i - 1];
|
| 477 |
else
|
| 478 |
histogram[iBand][i] = 0;
|
| 479 |
} |
| 480 |
} |
| 481 |
|
| 482 |
} |
| 483 |
|
| 484 |
/**
|
| 485 |
* Obtiene el porcentaje que lleva construido el histograma
|
| 486 |
* @return porcentaje de construcci?n
|
| 487 |
*/
|
| 488 |
public int getPercent() { |
| 489 |
return percent;
|
| 490 |
} |
| 491 |
|
| 492 |
/**
|
| 493 |
* calcula el histograma de la imagen completa. En caso de que exista un fichero RMF con
|
| 494 |
* el histograma calculado se leer? de all?.
|
| 495 |
*/
|
| 496 |
public void calcFullHistogram(boolean[] bands){ |
| 497 |
percent = 0;
|
| 498 |
showBands = bands; |
| 499 |
calcFullHistogram = true;
|
| 500 |
histogram = null;
|
| 501 |
histogram = readFullHistogramFromRMF(); |
| 502 |
if(histogram == null){ |
| 503 |
if(this.isAlive()) |
| 504 |
resume(); |
| 505 |
else
|
| 506 |
start(); |
| 507 |
}else
|
| 508 |
percent = 100;
|
| 509 |
} |
| 510 |
|
| 511 |
/**
|
| 512 |
* calcula el histograma acumulado de la imagen completa. En caso de que exista un fichero RMF con
|
| 513 |
* el histograma calculado se leer? de all?.
|
| 514 |
*/
|
| 515 |
public void calcFullAccumulatedHistogram(boolean[] bands){ |
| 516 |
percent = 0;
|
| 517 |
showBands = bands; |
| 518 |
calcFullHistogram = true;
|
| 519 |
histogram = null;
|
| 520 |
histogram = readFullAccumulatedHistogramFromRMF(); |
| 521 |
if(histogram == null){ |
| 522 |
if(this.isAlive()) |
| 523 |
resume(); |
| 524 |
else
|
| 525 |
start(); |
| 526 |
}else{
|
| 527 |
|
| 528 |
percent = 100;
|
| 529 |
} |
| 530 |
} |
| 531 |
|
| 532 |
/**
|
| 533 |
* Calcula el histograma de la imagen correspondiente al ?rea de interes. Antes de llamar a esta funci?n
|
| 534 |
* hay que asignar el ?rea de interes
|
| 535 |
*/
|
| 536 |
public void calcHistogramFromLimetedArea(boolean[] bands){ |
| 537 |
percent = 0;
|
| 538 |
showBands = bands; |
| 539 |
calcFullHistogram = false;
|
| 540 |
if(this.isAlive()) |
| 541 |
resume(); |
| 542 |
else
|
| 543 |
start(); |
| 544 |
} |
| 545 |
|
| 546 |
/**
|
| 547 |
* Calcula el histograma de la imagen correspondiente al ?rea de interes. Este ?rea de interes es
|
| 548 |
* es obtenida del extent del renderizador.
|
| 549 |
*/
|
| 550 |
public boolean calcHistogramFromRenderizerLimetedArea(boolean[] bands){ |
| 551 |
percent = 0;
|
| 552 |
showBands = bands; |
| 553 |
calcFullHistogram = false;
|
| 554 |
Extent fullExtent = pxRaster.getExtent(); |
| 555 |
Extent wcArea = new Extent(pxRaster.getLastViewPort().getExtent());
|
| 556 |
|
| 557 |
if( wcArea.getMax().getX() < fullExtent.getMin().getX() ||
|
| 558 |
wcArea.getMin().getX() > fullExtent.getMax().getX() || |
| 559 |
wcArea.getMax().getY() < fullExtent.getMin().getY() || |
| 560 |
wcArea.getMin().getY() > fullExtent.getMax().getY() ){
|
| 561 |
histogram = new int[grid.getBandCount()][Utilities.MAX_BYTE_BIT_VALUE + 1]; |
| 562 |
accumulatedHistogram = new int[grid.getBandCount()][Utilities.MAX_BYTE_BIT_VALUE + 1]; |
| 563 |
return false; |
| 564 |
} |
| 565 |
wcArea = Utilities.calculateAdjustedView(wcArea, fullExtent);
|
| 566 |
|
| 567 |
Rectangle2D pxArea = Utilities.getPxRectFromMapRect(pxRaster.getFiles()[0].getExtent().toRectangle2D(), pxRaster.getFiles()[0].getWidth(), pxRaster.getFiles()[0].getHeight(), wcArea.toRectangle2D()); |
| 568 |
setAreaOfInterest((int)pxArea.getMinX(), (int)pxArea.getMinY(), (int)Math.abs(pxArea.getMaxX() - pxArea.getMinX()), (int)Math.abs(pxArea.getMaxY() - pxArea.getMinY())); |
| 569 |
if(this.isAlive()) |
| 570 |
resume(); |
| 571 |
else
|
| 572 |
start(); |
| 573 |
return true; |
| 574 |
} |
| 575 |
|
| 576 |
/**
|
| 577 |
* Calcula el histograma de la vista y solo con los datos de visualizaci?n
|
| 578 |
* @return Histograma en forma de array bidimensional de enteros en el que el
|
| 579 |
* el primer indice es el n?mero de bandas y el segundo el histograma por banda
|
| 580 |
*/
|
| 581 |
public int[][] calcHistogramFromView(boolean[] bands){ |
| 582 |
viewHistogram = new int[3][256]; |
| 583 |
if(pxRaster != null){ |
| 584 |
BufferedImage img = (BufferedImage)pxRaster.getGeoImage(); |
| 585 |
if(img !=null) |
| 586 |
for(int col = 0; col < img.getHeight(); col++){ |
| 587 |
for(int line = 0; line < img.getWidth(); line++){ |
| 588 |
int px = ((BufferedImage) img).getRGB(line, col); |
| 589 |
int px3[] = {(px & 0xff0000) >> 16, (px & 0xff00) >> 8, (px & 0xff)}; |
| 590 |
if(bands[0]) |
| 591 |
viewHistogram[0][px3[0]] ++; //Histograma para la banda R |
| 592 |
if(bands[1]) |
| 593 |
viewHistogram[1][px3[1]] ++; //Histograma para la banda G |
| 594 |
if(bands[2]) |
| 595 |
viewHistogram[2][px3[2]] ++; //Histograma para la banda B |
| 596 |
} |
| 597 |
} |
| 598 |
} |
| 599 |
return viewHistogram;
|
| 600 |
} |
| 601 |
|
| 602 |
/**
|
| 603 |
* Calcula el histograma de la vista acumulado y solo con los datos de visualizaci?n
|
| 604 |
* @return Histograma en forma de array bidimensional de enteros en el que el
|
| 605 |
* el primer indice es el n?mero de bandas y el segundo el histograma por banda
|
| 606 |
*/
|
| 607 |
public int[][] calcAccumulatedHistogramFromView(boolean[] bands){ |
| 608 |
viewHistogram = calcHistogramFromView(bands); |
| 609 |
for(int iBand = 0; iBand < viewHistogram.length; iBand++){ |
| 610 |
for(int i = 1; i < viewHistogram[iBand].length; i++){ |
| 611 |
viewHistogram[iBand][i] += viewHistogram[iBand][i - 1];
|
| 612 |
} |
| 613 |
} |
| 614 |
return viewHistogram;
|
| 615 |
} |
| 616 |
|
| 617 |
} |