Java BuffereImage setRgb getRgb,2个不同的结果
我正在尝试将图像转换为矩阵并将其转换回,但这两张图片不同: 将其转换为矩阵:Java BuffereImage setRgb getRgb,2个不同的结果,java,bufferedimage,java-2d,Java,Bufferedimage,Java 2d,我正在尝试将图像转换为矩阵并将其转换回,但这两张图片不同: 将其转换为矩阵: public int[][] getMatrixOfImage(BufferedImage bufferedImage) { int width = bufferedImage.getWidth(null); int height = bufferedImage.getHeight(null); int[][] pixels = new int[width][height]; for
public int[][] getMatrixOfImage(BufferedImage bufferedImage) {
int width = bufferedImage.getWidth(null);
int height = bufferedImage.getHeight(null);
int[][] pixels = new int[width][height];
for (int i = 0; i < width; i++) {
for (int j = 0; j < height; j++) {
pixels[i][j] = bufferedImage.getRGB(i, j);
}
}
return pixels;
}
public int[][]getMatrixOfImage(BuffereImage BuffereImage){
int width=bufferedImage.getWidth(null);
int height=bufferedImage.getHeight(null);
int[][]像素=新int[宽度][高度];
对于(int i=0;i
并将其转换回BuffereImage:
public BufferedImage matrixToBufferedImage(int[][] matrix) {
int width=matrix[0].length;
int height=matrix.length;
BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB_PRE);
for (int i = 0; i < matrix.length; i++) {
for (int j = 0; j < matrix[0].length; j++) {
int pixel=matrix[i][j] <<24|matrix[i][j] <<16|matrix[i][j]<<8|matrix[i][j] ;
bufferedImage.setRGB(i, j, pixel);
}
}
return bufferedImage;
}
公共缓冲区映像矩阵xtobufferedimage(int[][]矩阵){
整数宽度=矩阵[0]。长度;
整数高度=矩阵长度;
BuffereImage BuffereImage=新的BuffereImage(宽度、高度、BuffereImage.TYPE_INT_ARGB_PRE);
对于(int i=0;i
int pixel=matrix[i][j] <<24|matrix[i][j] <<16|matrix[i][j]<<8|matrix[i][j];
?这是解决方案,我会在获得许可后标记。没问题,只是想知道出于性能原因,您应该避免getRGB/setRGB(每次调用都会进行昂贵的颜色空间计算),可以通过BuffereImage的光栅到达图像后面的阵列。
int pixel=matrix[i][j];