63 lines
1.5 KiB
Plaintext
63 lines
1.5 KiB
Plaintext
|
const int width = 512;
|
||
|
|
const int height = 1024;
|
||
|
|
int image_in[width * height];
|
||
|
|
int image_out[width * height];
|
||
|
|
|
||
|
|
int cutout(int val){
|
||
|
|
if(val < 0){
|
||
|
|
val = 0;
|
||
|
|
}
|
||
|
|
else{
|
||
|
|
if(val > 255){
|
||
|
|
val = 255;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(){
|
||
|
|
int i;
|
||
|
|
int j;
|
||
|
|
int num = getarray(image_in);
|
||
|
|
|
||
|
|
starttime();
|
||
|
|
j = 1;
|
||
|
|
while(j < width - 1){
|
||
|
|
i = 1;
|
||
|
|
while(i < height - 1){
|
||
|
|
int im1jm1 =(i-1)*width + j-1;
|
||
|
|
int im1j =(i-1)*width + j;
|
||
|
|
int im1jp1 =(i-1)*width + j+1;
|
||
|
|
int ijm1 =(i )*width + j-1;
|
||
|
|
int ij =(i )*width + j;
|
||
|
|
int ijp1 =(i )*width + j+1;
|
||
|
|
int ip1jm1 =(i+1)*width + j-1;
|
||
|
|
int ip1j =(i+1)*width + j;
|
||
|
|
int ip1jp1 =(i+1)*width + j+1;
|
||
|
|
int val = 8*image_in[ij] - image_in[im1jm1] - image_in[im1j] - image_in[im1jp1] -image_in[ijm1] - image_in[ijp1] - image_in[ip1jm1] - image_in[ip1j] - image_in[ip1jp1];
|
||
|
|
|
||
|
|
image_out[i*width + j] = cutout(val);
|
||
|
|
i = i + 1;
|
||
|
|
}
|
||
|
|
j = j + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
i = 0;
|
||
|
|
while(i < height){
|
||
|
|
image_out[i * width] = image_in[i * width];
|
||
|
|
image_out[i * width + width - 1] = image_in[i * width + width - 1];
|
||
|
|
i = i + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
j = 0;
|
||
|
|
while(j < width){
|
||
|
|
image_out[j] = image_in[j];
|
||
|
|
image_out[(height - 1) * width + j] = image_in[(height - 1) * width + j];
|
||
|
|
j = j + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
stoptime();
|
||
|
|
|
||
|
|
putarray(width * height, image_out);
|
||
|
|
return num;
|
||
|
|
}
|