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- 我想将像素矩阵转换成图像,但它不工作。谁能帮我?以下是代码。在这里,我添加了一个打印语句来检查它是否正在运行,但它也没有执行。任何人都可以帮我在这里
- 这是给问题的代码。
- 这是完整的代码。
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.awt.image.PixelGrabber;
import java.awt.image.WritableRaster;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public final class Util {
/**
* Converts a java.awt.Image into an array of pixels
*/
public static int[] convertToPixels(Image img) {
int width = img.getWidth(null);
int height = img.getHeight(null);
int[] pixel = new int[width * height];
PixelGrabber pg = new PixelGrabber(img, 0, 0, width, height, pixel, 0, width);
try {
pg.grabPixels();
} catch (InterruptedException e) {
throw new IllegalStateException("Error: Interrupted Waiting for Pixels");
}
if ((pg.getStatus() & ImageObserver.ABORT) != 0) {
throw new IllegalStateException("Error: Image Fetch Aborted");
}
return pixel;
}
public static Image getImageFromArray(int[] pixels, int width, int height) throws IOException {
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
WritableRaster raster = (WritableRaster) image.getData();
raster.setPixels(0, 0, width, height, pixels);
File output = new File("C:\\out.png");
ImageIO.write(image, "png", output);
System.out.print("written");
return image;
}
public static void main(String args[]) throws IOException {
int width, height;
BufferedImage source = ImageIO.read(new File(args[0]));
width = source.getWidth();
height = source.getHeight();
// Util obj = new Util();
Util.getImageFromArray(convertToPixels(source), width, height);
}
}
@DontKnowMuchButGettingBetter我在这里粘贴完整的代码。输出不会到来,即它不会在任何地方创建名为out.png的文件。 –
你的主要目标是什么?从文件创建图像? – Nikolay
是的,我想尝试将像素数组转换为图像并写入它@Nikolay –