protected void filter(int[] inPixels, int[] outPixels, int width, int height) { long time1 = System.currentTimeMillis(); int matrixWidth = matrix[0].length; int matrixHeight = matrix.length; int mattrixLeft = -matrixWidth / 2; int matrixTop = -matrixHeight / 2; for (int y = 0; y < height; y++) { int ytop = y + matrixTop; int ybottom = y + matrixTop + matrixHeight; for (int x = 0; x < width; x++) { float[] sum = {0.5f, 0.5f, 0.5f, 0.5f}; int xleft = x + mattrixLeft; int xright = x + mattrixLeft + matrixWidth; int matrixY = 0; for (int my = ytop; my < ybottom; my++, matrixY++) { int matrixX = 0; for (int mx = xleft; mx < xright; mx++, matrixX++) { int pixel = getPixel(inPixels, mx, my, width, height, EDGE_ZERO); float m = matrix[matrixY][matrixX]; sum[0] += m * ((pixel >> 24) & 0xff); sum[1] += m * ((pixel >> 16) & 0xff); sum[2] += m * ((pixel >> 8) & 0xff); sum[3] += m * (pixel & 0xff); } } outPixels[x + y * width] = (limitByte((int) sum[0]) << 24) | (limitByte((int) sum[1]) << 16) | (limitByte((int) sum[2]) << 8) | (limitByte((int) sum[3])); } } }