JMagick 缩放 剪切 水印 锐化

对图片进行缩放剪切

public
 String cut()
    {
        String fileName = getRequest().getParameter("fileName"
);
//图片路径+图片名称
        String txt_width = getRequest().getParameter("txt_width"
);
//缩放后宽
        String txt_height = getRequest().getParameter("txt_height"
);
//缩放后高
        String txt_top = getRequest().getParameter("txt_top"
);
//x坐标
        String txt_left = getRequest().getParameter("txt_left"
);
//y坐标
        String txt_DropWidth = getRequest().getParameter("txt_DropWidth"
);
//剪切宽
        String txt_DropHeight = getRequest().getParameter("txt_DropHeight"
);
//剪切高
        String filePath = getRequest().getSession().getServletContext().getRealPath("/"
)+
"attachFiles\\"
+fileName;


        String cutFilePath = getRequest().getSession().getServletContext().getRealPath("/"
)+
"attachFiles\\cut\\"
+fileName;
        File fileList = new
 File(getRequest().getSession().getServletContext().getRealPath(
"/"
)+
"attachFiles\\cut\\"
);
        if
(!fileList.exists())
        {
            fileList.mkdirs();
        }
        try
 {
             System.setProperty("jmagick.systemclassloader"
,
"no"
);
             ImageInfo info = new
 ImageInfo(filePath);

             MagickImage image = new
 MagickImage(info);
             MagickImage cropped = null
;
             MagickImage scaleImg = image.scaleImage(Integer.valueOf(txt_width), Integer.valueOf(txt_height));//缩放图片
             Rectangle rect = new
 Rectangle (Integer.valueOf(txt_left),Integer.valueOf(txt_top),Integer.valueOf(txt_DropWidth),Integer.valueOf(txt_DropHeight));
             cropped = scaleImg.cropImage(rect);//剪切图片
             cropped.setFileName(cutFilePath);
             cropped .writeImage(info);
             getRequest().setAttribute("cutImagePath"
, getRequest().getContextPath()+
"/attachFiles/cut/"
+fileName);

        } catch
 (MagickException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return
 
"cut"
;
    }

public String cut()
	{
		String fileName = getRequest().getParameter("fileName");//图片路径+图片名称
		String txt_width = getRequest().getParameter("txt_width");//缩放后宽
		String txt_height = getRequest().getParameter("txt_height");//缩放后高
		String txt_top = getRequest().getParameter("txt_top");//x坐标
		String txt_left = getRequest().getParameter("txt_left");//y坐标
		String txt_DropWidth = getRequest().getParameter("txt_DropWidth");//剪切宽
		String txt_DropHeight = getRequest().getParameter("txt_DropHeight");//剪切高
		String filePath = getRequest().getSession().getServletContext().getRealPath("/")+"attachFiles\\"+fileName;
		
		
		String cutFilePath = getRequest().getSession().getServletContext().getRealPath("/")+"attachFiles\\cut\\"+fileName;
		File fileList = new File(getRequest().getSession().getServletContext().getRealPath("/")+"attachFiles\\cut\\");
		if(!fileList.exists())
		{
			fileList.mkdirs();
		}
		try {
			 System.setProperty("jmagick.systemclassloader","no");
			 ImageInfo info = new ImageInfo(filePath);
			 
			 MagickImage image = new MagickImage(info); 
			 MagickImage cropped = null;
			 MagickImage scaleImg = image.scaleImage(Integer.valueOf(txt_width), Integer.valueOf(txt_height));//缩放图片
			 Rectangle rect = new Rectangle (Integer.valueOf(txt_left),Integer.valueOf(txt_top),Integer.valueOf(txt_DropWidth),Integer.valueOf(txt_DropHeight));
			 cropped = scaleImg.cropImage(rect);//剪切图片
			 cropped.setFileName(cutFilePath); 
			 cropped .writeImage(info);
			 getRequest().setAttribute("cutImagePath", getRequest().getContextPath()+"/attachFiles/cut/"+fileName);
			 
		} catch (MagickException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} 
		return "cut";
	}

 

 

对图片进行缩放剪切并添加水印

public
 String watermark()
    {
        String fileName = getRequest().getParameter("fileName"
);
//图片路径+名字
        String logoFileName = getRequest().getParameter("logoFileName"
);
//水印图片历经+名字
        Integer txt_width = Integer.valueOf(getRequest().getParameter("txt_width"
));
//缩放后宽
        Integer txt_height = Integer.valueOf(getRequest().getParameter("txt_height"
));
//缩放后高
        Integer txt_top = Integer.valueOf(getRequest().getParameter("txt_top"
));
//x坐标
        Integer txt_left = Integer.valueOf(getRequest().getParameter("txt_left"
));
//y坐标
        Integer txt_DropWidth = Integer.valueOf(getRequest().getParameter("txt_DropWidth"
));
//剪切宽度
        Integer txt_DropHeight = Integer.valueOf(getRequest().getParameter("txt_DropHeight"
));
//剪切高度
        String filePath = getRequest().getSession().getServletContext().getRealPath("/"
)+
"attachFiles\\"
+fileName;
        String logoImagPath = getRequest().getSession().getServletContext().getRealPath("/"
)+
"attachFiles\\logo\\"
+logoFileName;
        String flag = getRequest().getParameter("flag"
);

        String cutFilePath = getRequest().getSession().getServletContext().getRealPath("/"
)+
"attachFiles\\cut\\"
+fileName;
        File fileList = new
 File(getRequest().getSession().getServletContext().getRealPath(
"/"
)+
"attachFiles\\cut\\"
);
        if
(!fileList.exists())
        {
            fileList.mkdirs();
        }
        try
 {
             System.setProperty("jmagick.systemclassloader"
,
"no"
);
             ImageInfo info = new
 ImageInfo(filePath);

             MagickImage image = new
 MagickImage(info);
             MagickImage cropped = null
;
             MagickImage fLogo = null
;
             MagickImage sLogo = null
;
             Dimension logoDim = null
;

             MagickImage scaleImg = image.scaleImage(txt_width, txt_height);
             Rectangle rect = new
 Rectangle (txt_left,txt_top,txt_DropWidth,txt_DropHeight);
             cropped = scaleImg.cropImage(rect);
             fLogo = new
 MagickImage(
new
 ImageInfo(logoImagPath));
             logoDim = fLogo.getDimension();
             int
 lw = txt_DropWidth / 
4
;
             int
 lh = logoDim.height * lw / logoDim.width;
             sLogo = fLogo.scaleImage(lw, lh);
             //水印出现在左上方
             if
(flag.equals(
"leftTop"
))
             {
                 cropped.compositeImage(CompositeOperator.AtopCompositeOp, sLogo,
                         lh / 10
, lh / 
10
);
             }
             else
 
if
(flag.equals(
"rightTop"
))
             {
                 cropped.compositeImage(CompositeOperator.AtopCompositeOp, sLogo,
                         txt_DropWidth - (lw + lh / 10
), lh / 
10
);
             }
             else
 
if
(flag.equals(
"middle"
))
             {
                 cropped.compositeImage(CompositeOperator.AtopCompositeOp, sLogo,
                         (txt_DropWidth - lw)/2
, (txt_DropHeight-lh)/
2
);
             }
             else
 
if
(flag.equals(
"leftBottom"
))
             {
                 cropped.compositeImage(CompositeOperator.AtopCompositeOp, sLogo,
                         lh / 10
, txt_DropHeight - (lh + lh / 
10
));
             }
             else
             {
                 cropped.compositeImage(CompositeOperator.AtopCompositeOp, sLogo,
                         txt_DropWidth - (lw + lh / 10
), txt_DropHeight - (lh + lh / 
10
));
             }
             cropped.setFileName(cutFilePath);
             cropped.writeImage(info);
             getRequest().setAttribute("cutImagePath"
, getRequest().getContextPath()+
"/attachFiles/cut/"
+fileName);

        } catch
 (MagickException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return
 
"cut"
;
    }

public String watermark()
	{
		String fileName = getRequest().getParameter("fileName");//图片路径+名字
		String logoFileName = getRequest().getParameter("logoFileName");//水印图片历经+名字
		Integer txt_width = Integer.valueOf(getRequest().getParameter("txt_width"));//缩放后宽
		Integer txt_height = Integer.valueOf(getRequest().getParameter("txt_height"));//缩放后高
		Integer txt_top = Integer.valueOf(getRequest().getParameter("txt_top"));//x坐标
		Integer txt_left = Integer.valueOf(getRequest().getParameter("txt_left"));//y坐标
		Integer txt_DropWidth = Integer.valueOf(getRequest().getParameter("txt_DropWidth"));//剪切宽度
		Integer txt_DropHeight = Integer.valueOf(getRequest().getParameter("txt_DropHeight"));//剪切高度
		String filePath = getRequest().getSession().getServletContext().getRealPath("/")+"attachFiles\\"+fileName;
		String logoImagPath = getRequest().getSession().getServletContext().getRealPath("/")+"attachFiles\\logo\\"+logoFileName;
		String flag = getRequest().getParameter("flag");
		
		String cutFilePath = getRequest().getSession().getServletContext().getRealPath("/")+"attachFiles\\cut\\"+fileName;
		File fileList = new File(getRequest().getSession().getServletContext().getRealPath("/")+"attachFiles\\cut\\");
		if(!fileList.exists())
		{
			fileList.mkdirs();
		}
		try {
			 System.setProperty("jmagick.systemclassloader","no");
			 ImageInfo info = new ImageInfo(filePath);
			 
			 MagickImage image = new MagickImage(info); 
			 MagickImage cropped = null;
			 MagickImage fLogo = null;
			 MagickImage sLogo = null;
			 Dimension logoDim = null;
			 
			 MagickImage scaleImg = image.scaleImage(txt_width, txt_height);
			 Rectangle rect = new Rectangle (txt_left,txt_top,txt_DropWidth,txt_DropHeight);
			 cropped = scaleImg.cropImage(rect);
			 fLogo = new MagickImage(new ImageInfo(logoImagPath));
			 logoDim = fLogo.getDimension();
			 int lw = txt_DropWidth / 4;
			 int lh = logoDim.height * lw / logoDim.width;
			 sLogo = fLogo.scaleImage(lw, lh);
			 //水印出现在左上方
			 if(flag.equals("leftTop"))
			 {
				 cropped.compositeImage(CompositeOperator.AtopCompositeOp, sLogo,
						 lh / 10, lh / 10);
			 }
			 else if(flag.equals("rightTop"))
			 {
				 cropped.compositeImage(CompositeOperator.AtopCompositeOp, sLogo,
						 txt_DropWidth - (lw + lh / 10), lh / 10);
			 }
			 else if(flag.equals("middle"))
			 {
				 cropped.compositeImage(CompositeOperator.AtopCompositeOp, sLogo,
						 (txt_DropWidth - lw)/2, (txt_DropHeight-lh)/2);
			 }
			 else if(flag.equals("leftBottom"))
			 {
				 cropped.compositeImage(CompositeOperator.AtopCompositeOp, sLogo,
						 lh / 10, txt_DropHeight - (lh + lh / 10));
			 }
			 else
			 {
				 cropped.compositeImage(CompositeOperator.AtopCompositeOp, sLogo,
						 txt_DropWidth - (lw + lh / 10), txt_DropHeight - (lh + lh / 10));
			 }
			 cropped.setFileName(cutFilePath);
			 cropped.writeImage(info);
			 getRequest().setAttribute("cutImagePath", getRequest().getContextPath()+"/attachFiles/cut/"+fileName);
			 
		} catch (MagickException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} 
		return "cut";
	}

 

锐化图片

//锐化
    public
 
void
 sharpen(String filePath,String savePath)
    {
        ImageInfo info = null
;
        MagickImage image = null
;
        MagickImage sharpened = null
;
        try
 {
            info = new
 ImageInfo(filePath);
            image = new
 MagickImage(info);
            sharpened = image.sharpenImage(1.0
, 
5.0
);
            sharpened.setFileName(savePath);

        sharpened.writeImage(info);
        } catch
 (MagickException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        finally
 {
            if
 (image != 
null
) {
                image.destroyImages();
            }
        }
    }

//锐化
	public void sharpen(String filePath,String savePath)
	{
		ImageInfo info = null;
		MagickImage image = null;
		MagickImage sharpened = null;
		try {
			info = new ImageInfo(filePath);
			image = new MagickImage(info);
			sharpened = image.sharpenImage(1.0, 5.0);
			sharpened.setFileName(savePath);
		
		sharpened.writeImage(info);
		} catch (MagickException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		finally {
			if (image != null) {
				image.destroyImages();
			}
		}
	}

 最后：不要忘了这句话

System.setProperty(
"jmagick.systemclassloader"
, 
"no"
);