大数据中自动化“滑板验证”实现账密登录的解决思路是什么

await frame_slider.$eval('.tcaptcha-jpp',    (el, value)=> el.setAttribute('style', value),    'visibility: hidden');

const pixels = await util.promisify(getPixels)(path).catch((e) => {console.log('----->e is: ', e)})const buf = Buffer.from(pixels.data);

const getPixels = require("get-pixels");const util = require('util');
(async ()=> {    path = 'images/origin.png';    const pixels = await util.promisify(getPixels)(path).catch((e) => {console.log('----->e is: ', e)})    const buf = Buffer.from(pixels.data);    let bl = buf.toJSON().data.length/4    let btoj = buf.toJSON().data    let buf1 = []    for (var i=0; i        var j = i*4        buf1.push(btoj.slice(j,j+4))    }    let slider_bkg_width = 340    let slider_bkg_height = 195    let buf2 = []    for (var i=0; i        var j = i*slider_bkg_width        buf2.push(buf1.slice(j,j+slider_bkg_width))    }    let slider_block_height = 68      // 滑块的高度    let slider_bkg_end = 339          // =340-1， 滑板的宽度，从最右侧开始进行扫描    let slider_bkg_top = 64           // 滑板的顶部    let slider_bkg_bottom = 259       // 滑板的底部    let sliger_bkg_height = 195       // 259 - 64    let slider_bkg_half_width = 169   // =340/2-1， 缺口位置一般都是滑板的右半部分，所以扫描结束位置，定在滑板的中线    let col_compu = []    for (var rgba=0; rgba<3; rgba++) {                                           // 一个RGBA单元包含4个元素，循环取前 3 个        for (var t=0; t            for (var w=slider_bkg_end; w>slider_bkg_half_width; w--) {           // w 代表每一列，从340列开始到170列为止，一共170列，代表从右向左数的滑板宽度的一半                col_compu.push({'col':w,'count':(buf2.slice(t,t+1)[0][w-1][rgba] - buf2.slice(t,t+1)[0][w][rgba])>50?1:0})            }        }    }    var result = {}    // 计算每一列的合计数    col_compu.map(i => result[i.col] = (result[i.col] || 0) + i.count)    // 排序    var keys = Object.keys(result).sort();    var comp = 0    var comp_col = 0    for (var ttt=0; ttt        [comp_col, comp] = result[keys[ttt]] > comp ? [keys[ttt], result[keys[ttt]]] : [comp_col, comp]    }    console.log('----->comp is: ', comp)    console.log('----->comp_col is: ', comp_col)
    var result2 = result    result2[comp_col] = 0    var keys2 = Object.keys(result2).sort();    var comp2 = 0    var comp_col2 = 0    for (var tttt=0; tttt        [comp_col2, comp2] = result2[keys2[tttt]] > comp2 ? [keys2[tttt], result2[keys2[tttt]]] : [comp_col2, comp2]    }
    let realcol = comp_col    console.log('=====----->realcol is: ', realcol)
})();