jsonview 图像二值化就是将图像上的像素点的灰度值设置为0或255，也就是将整个图像呈现出明显的黑白效果。 将256个亮度等级的灰度图像通过适当的阈值选取而获得仍然可以反映图像整体和局部特征的二值化图像。 图像的二值化有利于图像的进一步处理，使图像变得简单，而且数据量减小，能凸显出感兴趣的目标的轮廓。(jsonview The two value of the image is to set the gray value of the pixel on the image

A news reading App framework, the highlight of the project: MVP mode: decoupling model and view layer, contract class management MVP, at a glance, realize vertical decoupling, base class perfect encapsulation, avoid frequent new objects. RxJava: in