在Java中从二进制图像(布尔数组)裁剪
我有一个2D布尔数组,它是一个分段图像,如下所示:在Java中从二进制图像(布尔数组)裁剪,java,image,resize,crop,binary-image,Java,Image,Resize,Crop,Binary Image,我有一个2D布尔数组,它是一个分段图像,如下所示: 000000000000000000 000000011110000000 000001110111100000 000001111110100000 000000111101100000 000000111011000000 00111100 11101111 11111101 01111011 01110110 我想裁剪图片并将其调整为如下特定大小: 000000000000000000 00000001111
000000000000000000
000000011110000000
000001110111100000
000001111110100000
000000111101100000
000000111011000000
00111100
11101111
11111101
01111011
01110110
我想裁剪图片并将其调整为如下特定大小:
000000000000000000
000000011110000000
000001110111100000
000001111110100000
000000111101100000
000000111011000000
00111100
11101111
11111101
01111011
01110110
我曾尝试使用BuffereImage保存它并使用getSubimage(),但无法正确设置边界
我也尝试过这种方法,其中我有缓冲图像的核心:
int Width = buffer.getWidth();
int Height = buffer.getHeight();
int x1= (int) (core.getX()) - (Width/2);
int y1= (int)(core.getY()) - (Height/2);
buffer = buffer.getSubimage(x1, y1, Width, Height);
如何裁剪并调整大小?显示你尝试的代码,它可以帮助某人给你一个答案,如果你在图像中间凝视,GETSube图像函数的高度超过了图像的宽度和高度。如果宽度和高度从宽度/2和高度/2开始,则剩余的宽度和高度为宽度/2和高度/2,如果尺寸正确,该方法将起作用
int [][] arr ={ {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0,0,0},
{0,0,0,0,0,1,1,1,0,1,1,1,1,0,0,0,0,0},
{0,0,0,0,0,1,1,1,1,1,1,0,1,0,0,0,0,0},
{0,0,0,0,0,0,1,1,1,1,0,1,1,0,0,0,0,0},
{0,0,0,0,0,0,1,1,1,0,1,1,0,0,0,0,0,0} };
int lowHorizontal =arr[0].length; // give it length of columns "how many columns
int highHorizontal =0;
for(int i=0; i<arr.length; i++){
for(int j=0; j<arr[0].length; j++){
if(arr[i][j] == 1 ){
if(lowHorizontal > j)
lowHorizontal = j;
}
}
}
for(int i=arr.length-1; i>=0; i--){
for(int j=arr[0].length-1; j>=0; j--){
if(arr[i][j]==1){
if(highHorizontal < j)
highHorizontal = j;
}
}
}
for(int i=0; i<arr.length; i++){
for(int j=lowHorizontal; j<=highHorizontal; j++){
System.out.print(arr[i][j] +" ");
}
System.out.println();
}