【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
{
    @Override
    public 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Formatter
        consoleHandler.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 handle
    private 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 window
        glfwFreeCallbacks(window);
        glfwDestroyWindow(window);

        // Terminate GLFW and free the error callback
        glfwTerminate();
        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 GLFW
        glfwDefaultWindowHints(); // optional, the current window hints are already the default
        glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE); // the window will stay hidden after creation
        glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE); // the window will be resizable

        // Create the window
        window = 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 frame
        try ( MemoryStack stack = stackPush() ) {
            IntBuffer pWidth = stack.mallocInt(1); // int*
            IntBuffer pHeight = stack.mallocInt(1); // int*

            // Get the window size passed to glfwCreateWindow
            glfwGetWindowSize(window, pWidth, pHeight);

            // Get the resolution of the primary monitor
            GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());

            // Center the window
            glfwSetWindowPos(
                    window,
                    (vidmode.width() - pWidth.get(0)) / 2,
                    (vidmode.height() - pHeight.get(0)) / 2
            );
        } // the stack frame is popped automatically

        // Make the OpenGL context current
        glfwMakeContextCurrent(window);
        // Enable v-sync
        glfwSwapInterval(1);

        // Make the window visible
        glfwShowWindow(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 OpenGL
        GL.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/123682686
        while (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