blurR越大，未被處理的像素點(diǎn)越多
圖片外圍一圈都沒有被處理
x米多米拉
2018-08-08
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2018-08-08
改成下面這樣了，不知道還有沒有問題，歡迎交流~
var blurR = 50;
for(var i = 0; i < canvasA.height; i++){
????for(var j = 0; j < canvasA.width; j++ ){
????????var r = 0,g = 0,b = 0,totalNum = 0;
????????for(var m = -blurR; m <= blurR; m++){
????????????for(var n = -blurR; n <= blurR;n++){
????????????????var x = i + m;
????????????????var y = j + n;
????????????????if(x<0||y<0||x >= canvasA.height ||y >= canvasA.width)
????????????????continue;
????????????????totalNum++;
????????????????var p = x*canvasA.width+y;
????????????????r += tmpData[4*p+0];
????????????????g += tmpData[4*p+1];
????????????????b += tmpData[4*p+2];
????????????}
????????}
????????var p = i*canvasA.width+j;
????????tmpData[4*p+0] = r/totalNum;
????????tmpData[4*p+1] = g/totalNum;
????????tmpData[4*p+2] = b/totalNum;
????}
}