读取和存储在java中的.bmp文件 [英] reading and storing a .bmp file in java

问题描述

我想读名为.bmp文件 circle1.bmp 。这是我所导入以下文件的包。

到目前为止，我有以下的code，但是当我运行下面的code我得到：

javax.imageio.llOException：无法读取输入文件

 公共无效设置（）抛出IOException异常
{
    BufferedImage的图像= ImageIO.read（新文件（circle1.bmp））;
    字节[] [] = greenInputData新的字节[30] [40];    为（中间体X = 0; X＆下; inputData.length; X ++）
    {
        对于（INT Y = 0; Y＆LT; inputData [X]。长度; Y ++）
        {
            INT颜色= image.getRGB（X，Y）;
            //阿尔法[X] [Y] =（字节）（彩色＆GT;＆GT; 24）;
            //红色[X] [Y] =（字节）（彩色＆GT;＆GT; 16）;
            greenInputData [X] [Y] =（字节）（彩色＆GT;→8）;
            //蓝[X] [Y] =（字节）（彩色）;
        }
    }
    this.inputData = greenInputData;    的System.out.println（this.inputData）;
}
 

解决方案

您应该尝试像

 图像= ImageIO.read（的getClass（）的getResourceAsStream（路径/要/你/ file.bmp））;
 

I'm am trying to read a .bmp file called circle1.bmp. It is in a package that I have imported into the following file.

So far I have the following code, but when I run the following code I get:

javax.imageio.llOException: Can't read input file!

public void setUp() throws IOException
{
    BufferedImage image = ImageIO.read(new File("circle1.bmp"));
    byte[][] greenInputData = new byte[30][40];

    for (int x = 0; x < inputData.length; x++)
    {
        for (int y = 0; y < inputData[x].length; y++)
        {
            int color = image.getRGB(x, y);
            //alpha[x][y] = (byte)(color>>24);
            //red[x][y] = (byte)(color>>16);
            greenInputData[x][y] = (byte)(color>>8);
            //blue[x][y] = (byte)(color);
        }
    }
    this.inputData = greenInputData;

    System.out.println(this.inputData);
}

解决方案

You should try something like

image = ImageIO.read(getClass().getResourceAsStream("path/to/your/file.bmp"));

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