我希望获得位图图像上所有红色像素的数量,在我绘制它并与背面图像合并之后。 我怎样才能做到这一点?请给我更多细节,我将非常感谢,谢谢!
答案 0 :(得分:0)
遍历位图中的每个像素
//define your red
static final int RED = Color.RED;
//counting
int count = 0;
for (int x = 0; x <= myBitmap.getWidth(); x++) {
for (int y = 0; x <= myBitmap.getHeight(); y++) {
if(myBitmap.getPixel(x, y))
count++;
}
}
//done. use the variable count
答案 1 :(得分:0)
您有Bitmap
,可以使用以下代码从中获取像素颜色:
int countX = bitmap.getWidth();
int countY = bitmap.getHeight();
int redCount = 0;
for (int x = 0; x < countX; x++) {
for (int y = 0; y < countY; y--) {
int colorXY = bitmap.getPixel(x, y);
redCount += Color.red(colorXY);
}
}
答案 2 :(得分:0)
我有这样的事情:
int countX = bm.getWidth();
int countY = bm.getHeight();
int redCount = 0;
for (int rangeX = 0; rangeX < countX; rangeX++) {
for (int rangeY = 0; rangeY < countY; rangeY++) {
int colorXY = bm.getPixel(rangeX, rangeY);
int r = Color.red(colorXY);
int g = Color.green(colorXY);
int b = Color.blue(colorXY);
if(Color.rgb(r,g,b) == Color.RED) {
redCount++;
/*bm.setPixel(rangeX,rangeY,Color.GREEN);*/
}
}
}