【JAVA】OPENGL+TIFF格式图片，不同阈值旋转效果

有些科学研究领域会用到一些TIFF格式图片，由于是多张图片相互渐变，看起来比较有意思：

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.*;/*** 可以自已定义日志打印格式，这样看起来比较方便些**/
class MyFormatter extends Formatter
{@Overridepublic String format(LogRecord arg0){//创建StringBuilder对象来存放后续需要打印的日志内容StringBuilder builder = new StringBuilder();//获取时间SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss.SSS");Date now = new Date();String dateStr = simpleDateFormat.format(now);builder.append("[");builder.append(dateStr);builder.append(" ");//拼接日志级别builder.append(arg0.getLevel()).append(" ");builder.append(arg0.getSourceClassName()).append(" ");//拼接方法名builder.append(arg0.getSourceMethodName()).append(" ");StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();String line = stackTrace[8].toString();String lineNumber = line.substring(line.indexOf(":") + 1, line.length() - 1);//拼接方法名builder.append(lineNumber).append("] ");//拼接日志内容builder.append(arg0.getMessage());//日志换行builder.append("\r\n");return builder.toString();}
}public class MyLogger {static Logger logger;static  {logger = Logger.getLogger(MyLogger.class.getName());logger.setUseParentHandlers(false);//如果需要将日志文件写到文件系统中，需要创建一个FileHandler对象Handler consoleHandler = new ConsoleHandler();//创建日志格式文件：本次采用自定义的FormatterconsoleHandler.setFormatter(new MyFormatter());//将FileHandler对象添加到Logger对象中logger.addHandler(consoleHandler);}public static Logger getLogger() {return logger;}public static void main(String[] args) {MyLogger.logger.info("1");Logger logger = MyLogger.logger;logger.info("2");}
}

import com.sun.media.jai.codec.*;import com.sun.media.jai.codec.FileSeekableStream;
import com.sun.media.jai.codec.ImageDecoder;
import com.sun.media.jai.codec.ImageCodec;
import com.sun.media.jai.codec.TIFFEncodeParam;
import com.sun.media.jai.codec.TIFFDecodeParam;
import com.sun.media.jai.codec.JPEGEncodeParam;
import java.awt.image.RenderedImage;
import javax.media.jai.RenderedOp;
import javax.media.jai.JAI;import java.awt.*;
import java.awt.image.DataBuffer;
import java.awt.image.RenderedImage;
import java.awt.image.renderable.ParameterBlock;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import javax.swing.*;//本类继承自画布类，用作绘图的面板，因为Java不允许多继承，所以要用此类
class TIFBase extends Canvas
{ImageDecoder dec;TIFBase() throws IOException {this.TifRead();}public void TifRead() throws IOException{String currentDir = System.getProperty("user.dir");System.out.println("当前目录：" + currentDir);//FileSeekableStream fileSeekableStream = new FileSeekableStream("human_brain_from_itk_example.tif");FileSeekableStream fileSeekableStream = new FileSeekableStream("ex_Repo_hb9_eve1.tif");TIFFDecodeParam param0 = null;TIFFEncodeParam param = new TIFFEncodeParam();JPEGEncodeParam param1 = new JPEGEncodeParam();dec = ImageCodec.createImageDecoder("tiff", fileSeekableStream, param0);param.setCompression(TIFFEncodeParam.COMPRESSION_GROUP4);param.setLittleEndian(false); // Intel}public ImageDecoder getDec() {return dec;}public void setDec(ImageDecoder dec) {this.dec = dec;}public void TifDisplay(Graphics g) throws IOException, InterruptedException{int pagesCount = dec.getNumPages();System.out.println("This TIF has " + pagesCount + " image(s)");System.out.println();for (int i = 0; i < pagesCount; i++){System.out.println("image: " + i);RenderedImage page = dec.decodeAsRenderedImage(i);DataBuffer dataBuffer = page.getData().getDataBuffer();//System.out.println("size: " + dataBuffer.getSize());int height = page.getHeight();int width = page.getWidth();//g.drawString(page.getData().toString(), 0, 0);for (int j = 0; j < height; j++){for (int k = 0; k < width; k++){int red = dataBuffer.getElem((j * width + k) * 3);int green = dataBuffer.getElem((j * width + k) * 3 + 1);int blue = dataBuffer.getElem((j * width + k) * 3 + 2);g.setColor(new Color(red, green, blue));g.drawOval(j, k, 1, 1);}}}//Thread.sleep(10);}public void TifDisplay2(Graphics g) throws IOException, InterruptedException {int pagesCount = dec.getNumPages();System.out.println("This TIF has " + pagesCount + " image(s)");System.out.println();DataBuffer[] dataBuffers = new DataBuffer[pagesCount];int height = 0;int width = 0;for (int i = 0; i < pagesCount; i++){//System.out.println("image: " + i);RenderedImage page = dec.decodeAsRenderedImage(i);//System.out.println("height: " + page.getHeight() + ", width: " + page.getWidth());height = page.getHeight();width = page.getWidth();dataBuffers[i] = page.getData().getDataBuffer();}int statPage = 0;int endPage = pagesCount;int gap = endPage - statPage;int miniColor = 3;for (int i = 0; i < height; i++){for (int j = 0; j < width; j++){int redSumary = 0;int greenSumary = 0;int blueSumary = 0;int validRedColorFlag = 0;int validGreenColorFlag = 0;int validBlueColorFlag = 0;for (int k = statPage; k < endPage; k++){int red = dataBuffers[k].getElem((i * width + j) * 3);int green = dataBuffers[k].getElem((i * width + j) * 3 + 1);int blue = dataBuffers[k].getElem((i * width + j) * 3 + 2);if (red > miniColor){redSumary += red;validRedColorFlag++;}if (green > miniColor){greenSumary += green;validGreenColorFlag++;}if (blue > miniColor){blueSumary += blue;validBlueColorFlag++;}}redSumary = (validRedColorFlag == 0) ? 0 : (redSumary / validRedColorFlag);greenSumary = (validGreenColorFlag == 0) ? 0 : (greenSumary / validGreenColorFlag);blueSumary = (validBlueColorFlag == 0) ? 0 : (blueSumary / validBlueColorFlag);g.setColor(new Color(redSumary, greenSumary, blueSumary));g.drawOval(i, j, 1, 1);}}}// 把窗口拉宽些就可。public void paint(Graphics g){System.out.println("1");try {this.TifDisplay(g);//this.TifDisplay2(g);}catch (IOException | InterruptedException e){throw new RuntimeException(e);}}
}public class TIF extends JFrame
{public TIF(){super("画直线");this.setVisible(true);this.setBounds(200, 200, 600, 600);}public void Display() throws IOException{//创建对象TIFBase tifBase = new TIFBase();//创建实例this.getContentPane().add(tifBase);}public static void main(String[] args) throws IOException{TIF tif = new TIF();tif.Display();}
}
import com.sun.media.jai.codec.ImageDecoder;
import org.lwjgl.*;
import org.lwjgl.glfw.*;
import org.lwjgl.opengl.*;
import org.lwjgl.system.*;import java.awt.*;
import java.awt.image.DataBuffer;
import java.awt.image.RenderedImage;
import java.io.IOException;
import java.nio.*;
import java.util.Objects;
import java.util.logging.Logger;import static org.lwjgl.glfw.Callbacks.*;
import static org.lwjgl.glfw.GLFW.*;
import static org.lwjgl.opengl.GL32.*;
import static org.lwjgl.system.MemoryStack.*;
import static org.lwjgl.system.MemoryUtil.*;public class HelloWorld {// The window handleprivate long window;public static Logger logger = MyLogger.logger;private float angle;private ImageDecoder dec;private int threshold;HelloWorld()  {//创建对象try {TIFBase tifBase = new TIFBase();//创建实例dec = tifBase.getDec();} catch (IOException e) {throw new RuntimeException(e);}}public void run(){logger.info("Hello LWJGL " + Version.getVersion() + "!");init();loop();// Free the window callbacks and destroy the windowglfwFreeCallbacks(window);glfwDestroyWindow(window);// Terminate GLFW and free the error callbackglfwTerminate();Objects.requireNonNull(glfwSetErrorCallback(null)).free();}private void init() {logger.info("init");// Setup an error callback. The default implementation// will print the error message in System.err.GLFWErrorCallback.createPrint(System.err).set();angle = 5;threshold = 20;// Initialize GLFW. Most GLFW functions will not work before doing this.if ( !glfwInit() )throw new IllegalStateException("Unable to initialize GLFW");// Configure GLFWglfwDefaultWindowHints(); // optional, the current window hints are already the defaultglfwWindowHint(GLFW_VISIBLE, GLFW_FALSE); // the window will stay hidden after creationglfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE); // the window will be resizable// Create the windowwindow = glfwCreateWindow(600, 600, "Hello World!", NULL, NULL);if ( window == NULL )throw new RuntimeException("Failed to create the GLFW window");// Setup a key callback. It will be called every time a key is pressed, repeated or released.glfwSetKeyCallback(window, (window, key, scancode, action, mods) -> {if ( key == GLFW_KEY_ESCAPE && action == GLFW_RELEASE )glfwSetWindowShouldClose(window, true); // We will detect this in the rendering loop});// Get the thread stack and push a new frametry ( MemoryStack stack = stackPush() ) {IntBuffer pWidth = stack.mallocInt(1); // int*IntBuffer pHeight = stack.mallocInt(1); // int*// Get the window size passed to glfwCreateWindowglfwGetWindowSize(window, pWidth, pHeight);// Get the resolution of the primary monitorGLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());// Center the windowglfwSetWindowPos(window,(vidmode.width() - pWidth.get(0)) / 2,(vidmode.height() - pHeight.get(0)) / 2);} // the stack frame is popped automatically// Make the OpenGL context currentglfwMakeContextCurrent(window);// Enable v-syncglfwSwapInterval(1);// Make the window visibleglfwShowWindow(window);}/*** 绘制三角形*/public void DrawTriangles(){glTranslatef(-0.5f, -0.5f, -0.00f); //平移矩阵glRotatef(angle, 0.5f, 0.5f, 0.0f); //绕X,Y, Z轴直线旋转XX度glPointSize(1.0f);glBegin(GL_POINTS);try {int pagesCount = dec.getNumPages();//System.out.println("This TIF has " + pagesCount + " image(s)");//System.out.println();for (int i = 0; i < pagesCount; i++){//System.out.println("image: " + i);RenderedImage page = dec.decodeAsRenderedImage(i);DataBuffer dataBuffer = page.getData().getDataBuffer();//System.out.println("size: " + dataBuffer.getSize());int height = page.getHeight();int width = page.getWidth();//g.drawString(page.getData().toString(), 0, 0);for (int j = 0; j < height; j++){for (int k = 0; k < width; k++){int red = dataBuffer.getElem((j * width + k) * 3);int green = dataBuffer.getElem((j * width + k) * 3 + 1);int blue = dataBuffer.getElem((j * width + k) * 3 + 2);//g.setColor(new Color(red, green, blue));//System.out.println("red: " + red + ", green: " + green + ", blue: " + blue);if (red > threshold ){glColor3b((byte) red, (byte) 0, (byte) 0);glVertex3f(k / 200.0f,j / 200.0f,i / 200.0f);}if (green > threshold ){glColor3b((byte) 0, (byte) green, (byte) 0);glVertex3f(k / 200.0f,j / 200.0f,i / 200.0f);}if (blue > threshold ){glColor3b((byte) 0, (byte) 0, (byte) blue);glVertex3f(k / 200.0f,j / 200.0f,i / 200.0f);}//g.drawOval(j, k, 1, 1);}}}} catch (IOException e) {throw new RuntimeException(e);}System.out.println("threshold: " + threshold  + ", angle: " + angle);if (angle >= 350){angle = 0;threshold += 10;}angle+=10;glEnd();}public void DrawLines(){glBegin(GL_LINES);glVertex2i(0, 0);glVertex2i(0, 1);glEnd();}public void DrawQuads(){glBegin(GL_QUADS);//顶面glColor3f(0.0f, 1.0f, 0.0f);glVertex3f(1.0f, 1.0f, -1.0f);     //右上顶点glVertex3f(-1.0f, 1.0f, -1.0f);    //左上顶点glVertex3f(-1.0f, 1.0f, 1.0f);     //左下顶点glVertex3f(1.0f, 1.0f, 1.0f);      //右下顶点//底面glColor3f(1.0f, 0.5f, 0.0f);glVertex3f(1.0f, -1.0f, 1.0f);     //右上顶点glVertex3f(-1.0f, -1.0f, 1.0f);    //左上顶点glVertex3f(-1.0f, -1.0f, -1.0f);   //左下顶点glVertex3f(1.0f, -1.0f, -1.0f);    //右下顶点//前面glColor3f(1.0f, 0.0f, 0.0f);glVertex3f(1.0f, 1.0f, 1.0f);      //右上顶点glVertex3f(-1.0f, 1.0f, 1.0f);     //左上顶点glVertex3f(-1.0f, -1.0f, 1.0f);    //左下顶点glVertex3f(1.0f, -1.0f, 1.0f);     //右下顶点//后面glColor3f(1.0f, 1.0f, 0.0f);glVertex3f(1.0f, -1.0f, -1.0f);    //右上顶点glVertex3f(-1.0f, -1.0f, -1.0f);   //左上顶点glVertex3f(-1.0f, 1.0f, -1.0f);    //左下顶点glVertex3f(1.0f, 1.0f, -1.0f);     //右下顶点//左侧面glColor3f(0.0f, 0.0f, 1.0f);glVertex3f(-1.0f, 1.0f, 1.0f);     //右上顶点glVertex3f(-1.0f, 1.0f, -1.0f);    //左上顶点glVertex3f(-1.0f, -1.0f, -1.0f);   //左下顶点glVertex3f(-1.0f, -1.0f, 1.0f);     //右下顶点//右侧面glColor3f(1.0f, 0.0f, 1.0f);glVertex3f(1.0f, 1.0f, -1.0f);     //右上顶点glVertex3f(1.0f, 1.0f, 1.0f);      //左上顶点glVertex3f(1.0f, -1.0f, 1.0f);     //左下顶点glVertex3f(1.0f, -1.0f, -1.0f);    //右下顶点glEnd();}private void loop() {logger.info("loop");// This line is critical for LWJGL's interoperation with GLFW's// OpenGL context, or any context that is managed externally.// LWJGL detects the context that is current in the current thread,// creates the GLCapabilities instance and makes the OpenGLGL.createCapabilities();//DrawQuads();//-----------------------------------------//glLoadIdentity();   //重置当前的模型观察矩阵//————————————————//版权声明：本文为CSDN博主「贝勒里恩」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。//原文链接：https://blog.csdn.net/Mr_robot_strange/article/details/123682686while (true){//glClearColor(1.0f, 1.0f, 0.0f, 0.0f);glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //清除屏幕和深度缓存//-----------------------------------------glLoadIdentity();   //重置当前的模型观察矩阵//DrawLines();DrawTriangles();glfwSwapBuffers(window);glfwPollEvents();}}public static void main(String[] args) {logger.info("main");new HelloWorld().run();}}

这上边的代码如果需要运行，需要依赖这些JAR包： 

运行效果如下:

TIFF格式图片文件不同阈值旋转_哔哩哔哩_bilibili

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