changeimg.java

动画素材图像语义标注系统：该系统实现对图片的语义标注

package cn.dxm.util;

import java.awt.Dimension;
import java.awt.FileDialog;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;

import javax.swing.ImageIcon;
import javax.swing.JFrame;

import cn.dxm.frame.ImageFrame;


public class ChangeIMG {

	private ImageIcon iicon;
	private ImageUtil iu;
	private String imgURL = null;
	private BufferedImage img;
	private BufferedImage img2;

	// 将图片缩放到最恰当的大小
	public BufferedImage ChangeIMGToProbleSize(String IMGsrc, JFrame jFrame) {

		iicon = new ImageIcon(IMGsrc);
		iu = new ImageUtil();
		imgURL = IMGsrc;
		img = ImageUtil.loadImage(imgURL);
		int imgH = iicon.getIconHeight();
		int imgW = iicon.getIconWidth();
		int newW = 0;
		int newH = 0;

		Dimension dm = Toolkit.getDefaultToolkit().getScreenSize();
		jFrame.setSize(dm.width, dm.height - 30);

		int width = dm.width;
		int hight = dm.height;
		// 如果图片尺寸大于屏幕大小，就将其进行等比比例放缩
		if (imgH > (hight - 20) || imgW > (width - 20)) {

			double h = imgH;
			double w = imgW;

			double wDivh3 = h / w;
			newW = dm.width - 100;
			newH = (int) (newW * wDivh3);

			// 如果进行图片缩放以后图片的高仍然大于800，就进行如下操作,将高设为700

			if (newH >= (dm.height - 100)) {
				double c = w / h;
				newH = dm.height - 100;
				newW = (int) (c * newH);
			}

			img2 = ImageUtil.resize(img, newW, newH);
			return img2;
		} else {

			return img;
		}
	}

	

	// 将图片放大
	public BufferedImage enlargeIMG(BufferedImage img,BufferedImage srcImg) {
		ImageIcon iicon = new ImageIcon(img);
		int height = iicon.getIconHeight();
		int width = iicon.getIconWidth();
		int h ;
		int w;
		

		if((height>ImageFrame.frame.getHeight())||(width>ImageFrame.frame.getWidth())){
			h=height;
			w=width;
		}else{
		double wDivh1 = height;
		double wDivh2 = width;
		// 图片的高宽比值
		double wDivh3 = wDivh1 / wDivh2;
		double newW = width * (10.0 / 9.0);
		double newH = (int) (newW * wDivh3);
		 h = (int) newH;
		 w = (int) newW;
		}
		
		BufferedImage bimage=null;
		bimage=ImageUtil.resize(srcImg, w, h);
		
		return bimage;
	}

	// 将图片缩小
	public BufferedImage narrowIMG(BufferedImage img,BufferedImage srcImg) {
		ImageIcon iicon = new ImageIcon(img);
		int height = iicon.getIconHeight();
		int width = iicon.getIconWidth();

		int h ;
		int w;
		
		  //当图片宽小于是10,高小于8时,图片大小将不发生变化.
		if(width<10||height<8){
			w=width;
			h=height;
		}else{
		double wDivh1 = height;
		double wDivh2 = width;

		// h/w
		double wDivh3 = wDivh1 / wDivh2;
		double newW = width * (9.0 / 10.0);
		double newH = (int) (newW * wDivh3);
		 w = (int) newW;
		 h = (int) newH;
		}

		BufferedImage bimage=null;
		bimage=ImageUtil .resize(srcImg, w, h);
		return bimage;
	}

	// 删除图片
	public boolean deleteIMG(String src) {

		File imgFile = new File(src);

		return imgFile.delete();
	}

	// 保存图片.

	public void saveImage(JFrame frame) {

		FileDialog save_dialog = null;
		File saveFile = null;

		String saveDir = null;
		String saveName = null;
		String saveURL = null;


	}
}