java实现黑图、透明图检测

朴灿烈づ我的快乐病毒、 2023-10-01 17:33 18阅读 0赞

配合对屏幕的截图操作，即可实现黑屏检测。稍微修改可以实现对任意指定颜色的图片进行判断，也可以实现纯色检测。

黑图检测代码如下。

public class SimpleColor {
        
        public static boolean isSimpleColorImg(String imgPath, float percent) throws IOException {
        
            BufferedImage src = ImageIO.read(new File(imgPath));
            int height = src.getHeight();
            int width = src.getWidth();
            int count = 0, pixel = 0;
            for (int i = 0; i < width; i++) {
        
                for (int j = 0; j < height; j++) {
        
                    pixel = src.getRGB(i, j);
                    Color color = new Color(pixel);
                    int R = color.getRed();
                    int G = color.getGreen();
                    int B = color.getBlue();
                    if(R < 30 && G < 30 && B < 30) {
        
                        count++;
                    }
                    if(count / (height * width) > percent) {
        
                        return true;
                    }
                }
            }
            return false;
        }
    
        public static void main(String args[]) throws IOException {
        
            System.out.println(isSimpleColorImg("/home/wangzhou/Downloads/black.jpeg", 0.99f));
        }
    }

看看透明图。

public static boolean isTransparentScreen(String imgPath, float percent) throws IOException {
        
            BufferedImage src = ImageIO.read(new File(imgPath));
            int height = src.getHeight();
            int width = src.getWidth();
            int count = 0;
            for (int i = 0; i < width; i++) {
        
                for (int j = 0; j < height; j++) {
        
                    if((src.getRGB(i,j)>>24)==0){
        
                        count++;
                    }
                    if (count / (height * width) > percent) {
        
                        return true;
                    }
                }
            }
            return false;
        }