ImageCombiner: lightweight image synthesis tool
The editor of Downcodes today introduces to you a simple and practical image synthesis tool-ImageCombiner. It has no complicated functions, focuses on image stitching, provides a simple interface, and can achieve image merging with just a few lines of code (of course it can also be used to synthesize watermarks).
Features
ImageCombiner supports both images and text materials, and provides a wealth of features to meet daily image synthesis needs:
1. Material type:
picture
text
2. Material operation:
position
Zoom
rotate
rounded corners
transparency
color
font
Font size
strikethrough
Center drawing
Text wrap
How to use
ImageCombiner is very simple to use. There is only one main class. You only need to create an ImageCombiner object, specify the background image and output format, then add various material elements, and set the position, size and effect of the elements (such as rounded corners, color, transparency, etc. ), and finally call the combine() method.
Code example:
`java
//Create an ImageCombiner object and specify the background image and output format
ImageCombiner combiner = new ImageCombiner("background.jpg", ImageFormat.JPEG);
//Add picture material
combiner.addImage("logo.png", 10, 10, 100, 100);
//Add text material
combiner.addText("Hello World!", 200, 200, Color.RED, new Font("Arial", Font.BOLD, 24));
//Composite image
BufferedImage combinedImage = combiner.combine();
//Save the image locally
ImageIO.write(combinedImage, "jpg", new File("output.jpg"));
`
Features
Lightweight: The project does not rely on any framework, it is written entirely based on the JDK itself, with no redundant functions and excellent performance.
Simple and easy to use: Simple interface, just a few lines of code can achieve image synthesis.
Rich functions: Supports a variety of material types and operations to meet daily picture synthesis needs.
Install
Note: If the composite image contains text, the development machine and server need to install the corresponding fonts first, otherwise the text cannot be displayed. The default font used by ImageCombiner is "Alibaba Puhui" (located in the font directory).
Install fonts:
1. Copy the font files in the font directory to the system font directory (the directory location may be different in different operating systems).
2. Run the showFonts() method in the test project, print the list of fonts available in the system, and confirm whether the installed fonts are effective.
rely:
ImageCombiner depends on the Java ImageIO library.
How to use:
1. Download the ImageCombiner project code.
2. Add the project to your project.
3. Write code and call the ImageCombiner class to implement the image synthesis function.
Sample code
The simplest example:
`java
import com.freewayso.imagecombiner.ImageCombiner;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class Main {
public static void main(String[] args) throws IOException {
//Create an ImageCombiner object and specify the background image and output format
ImageCombiner combiner = new ImageCombiner("background.jpg", ImageIO.read(new File("background.jpg")).getType());
//Add picture material
combiner.addImage("logo.png", 10, 10, 100, 100);
//Composite picture
BufferedImage combinedImage = combiner.combine();
//Save the image locally
ImageIO.write(combinedImage, "jpg", new File("output.jpg"));
}
}
`
Complete example:
`java
import com.freewayso.imagecombiner.ImageCombiner;
import com.freewayso.imagecombiner.ImageCombiner.ImageFormat;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class Main {
public static void main(String[] args) throws IOException {
//Create an ImageCombiner object and specify the background image and output format
ImageCombiner combiner = new ImageCombiner("background.jpg", ImageFormat.JPEG);
//Add picture material
combiner.addImage("logo.png", 10, 10, 100, 100)
.setRoundedCorners(20); // Set rounded corners
//Add text material
combiner.addText("Hello World!", 200, 200, Color.RED, new Font("Arial", Font.BOLD, 24))
.setTransparency(0.5f) //Set transparency
.setAlign(ImageCombiner.TextAlign.CENTER); // Set center alignment
//Composite picture
BufferedImage combinedImage = combiner.combine();
//Save the image locally
ImageIO.write(combinedImage, "jpg", new File("output.jpg"));
}
}
`
Summarize
ImageCombiner is a lightweight, easy-to-use, feature-rich image synthesis tool that can help you quickly implement functions such as image stitching and watermark synthesis.
Project address: https://github.com/freewayso/image-combiner
License: Apache-2.0 license