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
![[蓝桥 2023 ]三带一](https://img-blog.csdnimg.cn/img_convert/55f881eddd67977f20cb0f125da397bb.jpeg)
