ImageMagic for windows

1、安裝ImageMagick-6.2.6-8-Q16-windows-dll.exe

2、把安裝目錄下所有的dll文件copy到c:/windows/system32目錄下，以便調用dll。

3、解壓jmagick-6.2.6-win.zip，把q16/jmagick.dll copy 到c:/windows/system32目錄下。

4、把jar/jmagick.jar，q16/jmagick.dll copy 到jre的bin中(jdk的bin/lib中)。

5、利用jar/jmagick.jar進行java 開發。

如下是一些例子代碼：

3. 程序参考：

JMagickScale.java 实现图片缩略图

------------------------------------------------------------------

package images;

import magick.ImageInfo;

import magick.MagickException;

import magick.MagickImage;

public class JMagickScale {

/**

* Description:

* @param args

* @throws MagickException

*/

public static void main(String[] args) throws MagickException {

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

//reading image

ImageInfo info = new ImageInfo("c:/image4.bmp");

MagickImage image = new MagickImage(info);

//resize image

MagickImage scaleImg = image.scaleImage(95, 80);

//write image to file

scaleImg.setFileName("c:/MyFile4.bmp");

scaleImg.writeImage(info);

}

}

JMagickTest.java 实现图片的各种操作示例,如旋转,加边框，设置背景，提升质量，加盖文字说明等等...

-----------------------------------------------------------------------------------------------------------------------------

package images;

import java.awt.Dimension;

import java.awt.Rectangle;

import magick.ImageInfo;

import magick.MagickImage;

import magick.MagickException;

import magick.QuantizeInfo;

import magick.ColorspaceType;

import magick.MagickApiException;

import magick.PixelPacket;

import magick.DrawInfo;

import magick.ResolutionType;

import magick.ProfileInfo;

import magick.MontageInfo;

import magick.Magick;

import magick.MagickInfo;

import java.io.IOException;

import java.io.FileOutputStream;

/**

* For testing JMagick functions.

*

* @author Eric Yeo

*/

public class JMagickTest {

/**

* Display the information about the profile supplied.

*

* @param profile

* the profile for which to display

*/

private static void displayProfile(ProfileInfo profile) {

if (profile.getName() == null) {

System.out.println("Profile name is null");

}

else {

System.out.println("Profile name is " + profile.getName());

}

if (profile.getInfo() == null) {

System.out.println("No profile info");

}

else {

System.out.println("Profile length is " + profile.getInfo().length);

}

}

public static void main(String[] args) {

try {

Rectangle rect = new Rectangle(0, 0, 80, 40);

int flags = Magick.parseImageGeometry("60x50", rect);

System.out.println("Scaled to " + rect.width + "x" + rect.height);

// Copy an image.

ImageInfo info = new ImageInfo("pics.jpg");

info.setPage("50x50+0+0");

info.setUnits(ResolutionType.PixelsPerInchResolution);

info.setColorspace(ColorspaceType.RGBColorspace);

info.setBorderColor(PixelPacket.queryColorDatabase("red"));

info.setDepth(8);

System.out.println("Depth "+info.getDepth());

info.setDepth(0);

MagickImage image = new MagickImage(info);

image.setImageAttribute("Comment", "Processed by JMagick");

System.out.println("Quality is "+image.getQuality());

System.out.println("Colorspace is " + image.getColorspace());

System.out.println("Resolution units is " + image.getUnits());

System.out.println("X resolution is " + image.getXResolution());

System.out.println("Y resolution is " + image.getYResolution());

System.out.println("Size blob is " + image.sizeBlob());

System.out.println("Colors " + image.getColors());

System.out.println("Total colors " + image.getTotalColors());

System.out.println("Depth is "+image.getDepth());

image.signatureImage();

image.setFileName("copy.jpg");

image.writeImage(info);

// Background Color

System.out.println("Old colour " + image.getBackgroundColor());

image.setBackgroundColor(PixelPacket.queryColorDatabase("red"));

System.out.println("New colour " + image.getBackgroundColor());

// Border image

image.setBorderColor(PixelPacket.queryColorDatabase("green"));

MagickImage borderedImage = image.borderImage(new Rectangle(0, 0,

10, 20));

borderedImage.setFileName("border.jpg");

borderedImage.writeImage(info);

// Raise image

MagickImage raisedImage = new MagickImage(new ImageInfo("pics.jpg"));

raisedImage.raiseImage(new Rectangle(0, 0, 10, 20), true);

raisedImage.setFileName("raised.jpg");

raisedImage.writeImage(info);

// Profile test

System.out.println("Number of generic profiles "

+ image.getGenericProfileCount());

displayProfile(image.getColorProfile());

image.setColorProfile(new ProfileInfo());

displayProfile(image.getColorProfile());

image.setColorProfile(new ProfileInfo("Test", new byte[20]));

displayProfile(image.getColorProfile());

// Montage test

MagickImage images[] = new MagickImage[2];

images[0] = image;

images[1] = image;

MagickImage seqImage = new MagickImage(images);

MontageInfo montageInfo = new MontageInfo(new ImageInfo());

montageInfo.setFileName("montage.jpg");

montageInfo.setTitle("Melbourne");

montageInfo.setBorderWidth(5);

MagickImage montage = seqImage.montageImages(montageInfo);

montage.writeImage(new ImageInfo());

// Converting the montage into a blob

montage.setMagick("JPG");

byte[] mblob = montage.imageToBlob(new ImageInfo());

System.out.println("Length "+mblob.length);

// Test average

MagickImage average = seqImage.averageImages();

average.setFileName("average.jpg");

average.writeImage(new ImageInfo());

// Image to blob

info = new ImageInfo();

byte[] blob = image.imageToBlob(info);

// Blob to image

info = new ImageInfo();

MagickImage blobImage = new MagickImage(info, blob);

Dimension imageDim = blobImage.getDimension();

System.out.println("Blob width is " + imageDim.width);

System.out.println("Blob heght is " + imageDim.height);

System.out.println(imageDim);

blobImage.setFileName("blob.jpg");

blobImage.writeImage(info);

// JPEG Image to GIF blob

image.setMagick("GIF");

blob = image.imageToBlob(info);

try {

FileOutputStream out = new FileOutputStream("blob.gif");

out.write(blob);

out.close();

}

catch (IOException ex) {

System.out.println("Unable to write blob to file: " + ex);

}

// Rotation and shear

image = new MagickImage(new ImageInfo("pics.jpg"));

MagickImage rotated = image.rotateImage(45.0);

rotated.setFileName("rotated.jpg");

rotated.writeImage(info);

MagickImage sheared = image.shearImage(50.0, 10.0);

sheared.setFileName("sheared.jpg");

sheared.writeImage(info);

MagickImage scaled = image.scaleImage(100, 80);

scaled.setFileName("scaled.jpg");

scaled.writeImage(info);

// Cloning

imageDim = image.getDimension();

System.out.println("Width is " + imageDim.width);

System.out.println("Height is " + imageDim.height);

System.out.println("Depth is " + image.getDepth());

System.out.println("Storage class is " + image.getStorageClass());

System.out.println("Comment is /""

+ image.getImageAttribute("Comment") + "/"");

MagickImage clonedImage = image.cloneImage(0, 0, false);

clonedImage.setFileName("clone.jpg");

clonedImage.writeImage(info);

// Quantization

MagickImage quantizedImage = new MagickImage(new ImageInfo(

"pics.jpg"));

QuantizeInfo quantizeInfo = new QuantizeInfo();

quantizeInfo.setColorspace(ColorspaceType.GRAYColorspace);

quantizeInfo.setNumberColors(256);

quantizeInfo.setTreeDepth(4);

System.out.println("QuantizeImage "

+ quantizedImage.quantizeImage(quantizeInfo));

System.out.println("Colors " + quantizedImage.getColors());

System.out.println("Total colors "

+ quantizedImage.getTotalColors());

quantizedImage.setFileName("quantized.png");

quantizedImage.writeImage(info);

// for (int i = 0; i < quantizedImage.getColors(); i++) {

// PixelPacket pp = quantizedImage.getColormap(i);

// System.out.println("Colormap[" + i + "] = (" + pp.getRed()

// + ", " + pp.getGreen() + ", " + pp.getBlue() + ")");

// }

// PixelPacket[] ppArray = quantizedImage.getColormap();

// for (int i = 0; i < quantizedImage.getColors(); i++) {

// System.out.println("Colormap2[" + i + "] = ("

// + ppArray .getRed() + ", " + ppArray.getGreen()

// + ", " + ppArray.getBlue() + ")");

// }

// Create an image from scratch

MagickImage blankImage = new MagickImage();

byte[] pixels = new byte[200 * 100 * 4];

for (int i = 0; i < 200 * 100; i++) {

pixels[4 * i] = (byte) 255;

pixels[4 * i + 1] = (byte) 255;

pixels[4 * i + 2] = (byte) 255;

pixels[4 * i + 3] = (byte) 0;

}

blankImage.constituteImage(200, 100, "RGBA", pixels);

// Put a red rectangle around the border

DrawInfo drawInfo = new DrawInfo(new ImageInfo());

drawInfo.setPrimitive("Rectangle 10 10 190 90");

drawInfo.setStroke(PixelPacket.queryColorDatabase("red"));

drawInfo.setFill(PixelPacket.queryColorDatabase("white"));

blankImage.drawImage(drawInfo);

// Annotate the image with a green Hello

ImageInfo blankImageInfo = new ImageInfo();

DrawInfo annotateInfo = new DrawInfo(blankImageInfo);

annotateInfo.setOpacity(0);

annotateInfo.setFont("fixed");

annotateInfo.setFill(PixelPacket.queryColorDatabase("green"));

annotateInfo.setText("Hello");

annotateInfo.setGeometry("+30+30");

blankImage.annotateImage(annotateInfo);

blankImage.setFileName("blank.jpg");

blankImage.writeImage(info);

// Make the white page of the image transparent

blankImage.transparentImage(

PixelPacket.queryColorDatabase("white"), 65535);

blankImage.setFileName("transparent.png");

blankImage.writeImage(info);

// Crop image

rect = new Rectangle(20, 20, 150, 120);

MagickImage cropped = image.cropImage(rect);

cropped.setFileName("cropped.jpg");

cropped.writeImage(info);

// Chop image

rect = new Rectangle(0, 0, 150, 120);

MagickImage chopped = image.chopImage(rect);

chopped.setFileName("chopped.jpg");

chopped.writeImage(info);

// Sharpen image

MagickImage sharpened = image.sharpenImage(1.0, 5.0);

sharpened.setFileName("sharpened.jpg");

sharpened.writeImage(info);

// Despeckle image

MagickImage despeckled = image.despeckleImage();

despeckled.setFileName("despeckled.jpg");

despeckled.writeImage(info);

// Convolve image

double[] kernel = new double[9];

for (int i = 0; i < 9; i++) {

kernel = 1.0;

}

kernel[4] = 2.0;

MagickImage convolvedImage = image.convolveImage(3, kernel);

convolvedImage.setFileName("convolved.jpg");

convolvedImage.writeImage(info);

// Finally display the image.

MagickWindow window = new MagickWindow(image);

window.setVisible(true);

// MagickInfo test

MagickInfo minfo = new MagickInfo("JPEG");

System.out.println("JPG description: " + minfo.getDescription());

}

catch (MagickApiException ex) {

System.err.println("MagickException: " + ex + ": " + ex.getReason()

+ ", " + ex.getDescription());

}

catch (MagickException ex) {

System.err.println("MagickException: " + ex);

}

}

}

MagickWindow.java 在java.awt组件中显示

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package images;

import java.awt.Dimension;

import java.awt.Frame;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import magick.MagickImage;

import magick.util.MagickViewer;

/**

* This class implements a window that displays a MagickImage.

*

* @author Eric Yeo

*/

public class MagickWindow extends Frame {

/**

* A listener that exits the application when we receive

* the window closing event.

*/

private final class MyListener extends WindowAdapter {

/**

* This method is called when the window closes.

*/

public void windowClosing(WindowEvent event)

{

System.exit(0);

}

}

/**

* We want the window size to be this big.

*/

public Dimension getPreferredSize() {

return new Dimension(250, 200);

}

/**

* We want the window size to be at this minimum.

*/

public Dimension getMinimumSize() {

return new Dimension(300, 200);

}

/**

* Constructor.

*/

public MagickWindow(MagickImage image)

{

setResizable(true);

addWindowListener(new MyListener());

MagickViewer imageViewer = new MagickViewer();

add(imageViewer, "Center");

setTitle("Magick Window");

pack();

imageViewer.setImage(image);

}

}

Re: throwMagickApiException: Unable to create description string

From: Eric Yeo <ttey <at> yeo.id.au>

Subject: Re: throwMagickApiException: Unable to create description string

Newsgroups: gmane.comp.java.jmagick

Date: 2004-12-08 11:18:35 GMT

On Tue, 2004-12-07 at 06:25, Niclas wrote:

> Hello,

>

> I have a problem getting JMagick to work. I'm running

> the following java code:

>

> System.out.println("creating imageinfo");

> ImageInfo imageInfo = new ImageInfo(sourceName);

> System.out.println("creating magickimage");

> MagickImage magickImage = new

> MagickImage(imageInfo);

>

> Which produces the following output:

>

> creating imageinfo

> Set the file name in ImageInfo to test_cmyk.jpg

> creating magickimage

> Attempting to read from file test_cmyk.jpg

> throwMagickApiException: Unable to create description

> string

>

> the program later blows up with a

> "magick.MagickException: Cannot obtain image handle"

> because (I guess) the MagickImage object is not valid.

Is there a possibility that there are other versions of ImageMagick

libraries? Problem such as this can be a result of linking to the wrong

version of ImageMagick.

Regards,

(Continue reading)

Permalink | Reply | 0 comments |

headersnazma kani | 8 Dec 14:05

problem in executing jmagic in windows2000

From: nazma kani <nazmakani <at> yahoo.co.in>

Subject: problem in executing jmagic in windows2000

Newsgroups: gmane.comp.java.jmagick

Date: 2004-12-08 13:05:48 GMT

hello,

i downloaded ImageMagic in to my system. i am having windows 2000instatlled on my system, it worked fine. and then i download JMagick. ikept the jmagick.dll file at c:/winnt/System32 and atc:/j2sdk1.4.1_01/jre/bin.

and libray atc:/j2sdk1.4.1_01/jre/lib/ext/; and set my classpath to jar file. nowthe problem is if i tryed to compile it it compiled without any error.when i tried to execute the file it guve errirm

"The procedure entry point entry DestroyMagickInfo could not be located in the dynamic link library CORE_RL_magick"

Then i changed to another system where windows xp is installed andthere i found the java file is compiled and when i tried to execute it. then it generated one *.log file. the log file is as follows

An unexpected exc eption has been detected in native code outside the VM.

Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x77F53C89

Function=RtlQueryInformationActivationContext+0x76B

Library=C:/WINDOWS/WINXP/System32/ntdll.dll

Current Java thread:

at magick.MagickImage.readImage(Native Method)

at magick.MagickImage.<init>(MagickImage.java:90)

at Hello.<init>(Hello.java:22)

at Hello.main(Hello.java:43)

Dynamic libraries:

0x00400000 - 0x00406000 C:/j2sdk1.4.1_01/bin/java.exe

0x77F50000 - 0x77FF9000 C:/WINDOWS/WINXP/System32/ntdll.dll

0x77E60000 - 0x77F40000 C:/WINDOWS/WINXP/system32/kernel32.dll

0x77DD0000 - 0x77E5B000 C:/WINDOWS/WINXP/system32/ADVAPI32.dll

0x78000000 - 0x7806F000 C:/WINDOWS/WINXP/system32/RPCRT4.dll

0x77C10000 - 0x77C63000 C:/WINDOWS /WINXP/system32/MSVCRT.dll

0x6D330000 - 0x6D45A000 C:/j2sdk1.4.1_01/jre/bin/client/jvm.dll

0x77D40000 - 0x77DC6000 C:/WINDOWS/WINXP/system32/USER32.dll

0x77C70000 - 0x77CAE000 C:/WINDOWS/WINXP/system32/GDI32.dll

0x76B40000 - 0x76B6C000 C:/WINDOWS/WINXP/System32/WINMM.dll

0x629C0000 - 0x629C8000 C:/WINDOWS/WINXP/System32/LPK.DLL

0x72FA0000 - 0x72FFA000 C:/WINDOWS/WINXP/System32/USP10.dll

0x6D1D0000 - 0x6D1D7000 C:/j2sdk1.4.1_01/jre/bin/hpi.dll

0x6D300000 - 0x6D30D000 C:/j2sdk1.4.1_01/jre/bin/verify.dll

0x6D210000 - 0x6D229000 C:/j2sdk1.4.1_01/jre/bin/java.dll

0x6D320000 - 0x6D32D000 C:/j2sdk1.4.1_01/jre/bin/zip.dll

0x10000000 - 0x1001E000 C:/j2sdk1.4.1_01/jre/bin/JMagick.dll

0x0AC20000 - 0x0ADDB000 c:/program files/imagemagick-6.1.4-q16/CORE_RL_magick_.dll

0x0A DE0000 - 0x0AE93000 c:/program files/imagemagick-6.1.4-q16/X11.dll

0x71AD0! 000 - 0x71AD8000 C:/WINDOWS/WINXP/System32/WSOCK32.dll

0x71AB0000 - 0x71AC5000 C:/WINDOWS/WINXP/System32/WS2_32.dll

0x71AA0000 - 0x71AA8000 C:/WINDOWS/WINXP/System32/WS2HELP.dll

0x0AEA0000 - 0x0AEB2000 c:/program files/imagemagick-6.1.4-q16/CORE_RL_zlib_.dll

0x7C340000 - 0x7C396000 c:/program files/imagemagick-6.1.4-q16/MSVCR71.dll

0x00950000 - 0x0095F000 c:/program files/imagemagick-6.1.4-q16/CORE_RL_bzlib_.dll

0x0AEC0000 - 0x0AEE9000 c:/program files/imagemagick-6.1.4-q16/CORE_RL_lcms_.dll

0x0AEF0000 - 0x0AF33000 c:/program files/imagemagick-6.1.4-q16/CORE_RL_tiff_.dll

0x0AF40000 - 0x0AF60000 c:/program files/imagemagick-6.1.4-q16/CORE_RL_jpeg_.dll

0x0AF60000 - 0x0AFBB000 c:/program files/imagemagick-6.1.4-q16/CORE_RL_ttf_.dll

0x67820000 - 0x6 7826000 C:/Program Files/ImageMagick-6.1.4-Q16/modules/coders/IM_MOD_RL_RAW_.dll

0x76C90000 - 0x76CB2000 C:/WINDOWS/WINXP/system32/imagehlp.dll

0x6D510000 - 0x6D58C000 C:/WINDOWS/WINXP/system32/DBGHELP.dll

0x77C00000 - 0x77C07000 C:/WINDOWS/WINXP/system32/VERSION.dll

0x76BF0000 - 0x76BFB000 C:/WINDOWS/WINXP/System32/PSAPI.DLL

Local Time = Tue Dec 07 15:46:23 2004

Elapsed Time = 1

#

# The exception above was detected in native code outside the VM

#

# Java VM: Java HotSpot(TM) Client VM (1.4.1_01-b01 mixed mode)

#

i don't understand why this error is coming because my java file is small and it is as shown below.

import magick.*;

public class Sample {

Sample() {

&n bsp; try {

ImageInfo infos = new ImageInfo("C:/1.jpg"):

MagickImage image= new MagickImage(infos);

}

} catch (Exception e) {

System.out.println(e);

}

}

public static void main(String args[])

{

Sample s = new Sample();

System.out.println("hello");

}

}

----------------------------------------------------------------------

i found that the error is coming at the line

MagickImage image= new MagickImage(infos);

why i am getting this error . what i need to be done inorder to use jmagick in both of my systems. please anyone help me.

i am really in need of solution for this because i am working in theproject related to images. where i need to take two images randomly andcreate one final gif image.

Thanking you in advance.

NAJMA

Yahoo! India Matrimony: Find your life partner online.

_______________________________________________

JMagick mailing list

JMagick <at> yeo.id.au

http://www.yeo.id.au/mailman/listinfo/jmagick

现在web应用经常会用到缩略图。然后一旦生成的缩略图小于100px * 100px,一些常用的java包，生成的图片确实有点惨不忍睹。

研究了半天才研究出来，希望能让刚用到的朋友有点帮助。

现在介绍使用Jmagick的使用，可以生成质量很好的缩略图，当然还有其他很多图像处理的方法。

首先jmagick（http://www.yeo.id.au/jmagick/）是ImageMagick（http://www.imagemagick.org/）的java 应用的接口。所以要先安装ImageMagick应用程序，你的java应用才能使用,在主页上你可以轻松找到下载的链接。

1。下载jmagick,imagemagick

2.安装ImageMagick，网站上有安装方法（windows,unnix）,我只在win上做了安装，安装以后把安装目录下所有的dll文件copy到windows/system32/目录下。

3。下载的jmagick包含jmagick.jar,jmagick.dll文件，jmagick.dll需要copy到windows/system32/目录下。

4。web应用如果部署到tomcat下，那么最好在catalina.bat文件中改变如下设置

setJAVA_OPTS=%JAVA_OPTS% -Xms256M -Xmx768M -XX:MaxPermSize=128M-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager-Djava.util.logging.config.file="${catalina.base}/conf/logging.properties"

避免heap溢出的问题，参数看你自己的机器而定。（ -Xms256M -Xmx768M -XX:MaxPermSize=128M ）

5。还要注意如果部署到web应用，你在使用的class里面需要

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

要不然会报出UnsatisfiedLinkError: no JMagick in java.library.path.

实例如下：

public void resize(int w, int h) throws IOException {

try {

// Resize

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

ImageInfo info = new ImageInfo(sourceFileName);

MagickImage image = new MagickImage(info);

MagickImage scaled = image.scaleImage(w, h);//小图片文件的大小.

scaled.setFileName(destFile);

scaled.writeImage(info);

} catch(MagickApiException ex) {

System.out.println(ex);

} catch(MagickException ex) {

System.out.println(ex);

}

}