zxing解析带logo二维码会报com.google.zxing.NotFoundException

参考原文:https://blog.csdn.net/cyl1226541/article/details/70557232

      //复杂模式,开启PURE_BARCODE模式(☆☆☆)
        HINTS.put(DecodeHintType.PURE_BARCODE, Boolean.TRUE);
        //优化精度
        HINTS.put(DecodeHintType.TRY_HARDER, BarcodeFormat.QR_CODE);

    上述两句代码建议不加,因为加上以后,在保证只有二维码的情况下,才可以正常识别。
    
// 解码设置编码方式为:utf-8, HINTS.put(DecodeHintType.CHARACTER_SET, "utf-8");

上述方法,尝试过后,不可行, 还有说法是,将彩色图片转换为黑白图片。

用这个博客提供的https://blog.csdn.net/android_machong/article/details/53169048图片转换为黑白图片后,还是不行

// 彩色图片转黑白  
    public static Bitmap convertToBlackWhite(Bitmap bmp) {  
        int width = bmp.getWidth(); // 获取位图的宽  
        int height = bmp.getHeight(); // 获取位图的高  
        int[] pixels = new int[width * height]; // 通过位图的大小创建像素点数组  
  
        bmp.getPixels(pixels, 0, width, 0, 0, width, height);  
        int alpha = 0xFF << 24;  
        for (int i = 0; i < height; i++) {  
            for (int j = 0; j < width; j++) {  
                int grey = pixels[width * i + j];  
  
                // 分离三原色  
                int red = ((grey & 0x00FF0000) >> 16);  
                int green = ((grey & 0x0000FF00) >> 8);  
                int blue = (grey & 0x000000FF);  
  
                // 转化成灰度像素  
                grey = (int) (red * 0.3 + green * 0.59 + blue * 0.11);  
                grey = alpha | (grey << 16) | (grey << 8) | grey;  
                pixels[width * i + j] = grey;  
            }  
        }  
        // 新建图片  
        Bitmap newBmp = Bitmap.createBitmap(width, height, Config.RGB_565);  
        // 设置图片数据  
        newBmp.setPixels(pixels, 0, width, 0, 0, width, height);  
  
        Bitmap resizeBmp = ThumbnailUtils.extractThumbnail(newBmp, 380, 460);  
        return resizeBmp;  
    }  
原文地址:https://www.cnblogs.com/liyanli-mu640065/p/9165584.html