可以通过分块处理来解决该问题。 代码示例：

public static int[][] getPixels(Bitmap bitmap) {
    final int width = bitmap.getWidth();
    final int height = bitmap.getHeight();
    int[][] pixels = new int[height][width];
    final int BLOCK_SIZE = 100; // adjust as per your preference
    for (int i = 0; i < height; i += BLOCK_SIZE) {
        for (int j = 0; j < width; j += BLOCK_SIZE) {
            int blockHeight = Math.min(BLOCK_SIZE, height - i);
            int blockWidth = Math.min(BLOCK_SIZE, width - j);
            int[] buffer = new int[blockWidth * blockHeight];
            bitmap.getPixels(buffer, 0, blockWidth, j, i, blockWidth, blockHeight);
            for (int k = 0; k < blockHeight; k++) {
                for (int l = 0; l < blockWidth; l++) {
                    pixels[i + k][j + l] = buffer[k * blockWidth + l];
                }
            }
        }
    }
    return pixels;
}

该方法将图像分成块，并逐个处理每个块。 这可以解决处理一个非常大的位图时出现的性能问题。