filterImage.js

var arr= [];
var filterArr= [];
var thresholdNum = 70;
arr.push([250,000,000,000,000,000,000,000]);
arr.push([000,250,000,000,000,000,000,000]);
arr.push([000,000,250,000,000,000,000,000]);
arr.push([000,000,000,250,000,000,000,000]);
arr.push([000,000,000,000,250,000,000,000]);
arr.push([000,000,000,000,000,250,000,000]);
arr.push([000,000,000,000,000,000,250,000]);
arr.push([000,000,000,000,000,000,000,250]);

var filterArr= [];
filterArr.push([000,000,000,000,000,000,000,000]);
filterArr.push([000,000,000,000,000,000,000,000]);
filterArr.push([000,000,000,000,000,000,000,000]);
filterArr.push([000,000,000,000,000,000,000,000]);
filterArr.push([000,000,000,000,000,000,000,000]);
filterArr.push([000,000,000,000,000,000,000,000]);
filterArr.push([000,000,000,000,000,000,000,000]);
filterArr.push([000,000,000,000,000,000,000,000]);

for(var i = 0;i<8;i++){
	for(var j = 0;j<8;j++){
		if(arr[i][j] > thresholdNum){
            filterArr[i][j] = 1;
        }else{
            filterArr[i][j] = 0;
        }
	}
}
var filterImg = "";
for(var i = 0;i<8;i++){
	for(var j = 0;j<8;j++){
		if(filterArr[i][j] == 1){
            filterImg = filterImg + "■";
        }else{
            filterImg = filterImg + "□";
        }
    }
    filterImg = filterImg + "\n"
}
console.log(filterImg)