我想测量图像的红色,绿色和蓝色百分比。我可以通过getRGB()获取每个像素的RGB值,但不能分别对R,G,B进行分离。我的代码返回的值如rgb 167 163 164
。我该如何分别测量每一个?
public class RGB {
public static final String IMG = "/home/aritra/workspace/oopencv/picture/Pic652.jpg";
public static void main(String[] args) {
BufferedImage img;
try {
img = ImageIO.read(new File(IMG));
int[][] pixelData = new int[img.getHeight() * img.getWidth()][3];
int[] rgb;
int counter = 0;
for(int i = 0; i < img.getWidth(); i++){
for(int j = 0; j < img.getHeight(); j++){
rgb = getPixelData(img, i, j);
}
//System.out.println(counter);
}
} catch (IOException e) {
e.printStackTrace();
}
}
private static int[] getPixelData(BufferedImage img, int x, int y) {
int argb = img.getRGB(x, y);
int red[]={0};
int rgb[] = new int[] {
(argb >> 16) & 0xff, //red
(argb >> 8) & 0xff, //green
(argb ) & 0xff //blue
};
System.out.println("rgb: " + rgb[0] + " " + rgb[1] + " " + rgb[2]);
return rgb;
}
答案 0 :(得分:0)
你只需要在rgb = getPixelData(
)之后计算它rgb [0]为RED,rgb [1]为GREEN abd rgb [2]为蓝色
值范围为0到254