本文整理匯總了Java中org.joml.Math.exp方法的典型用法代碼示例。如果您正苦於以下問題:Java Math.exp方法的具體用法?Java Math.exp怎麽用?Java Math.exp使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.joml.Math
的用法示例。
在下文中一共展示了Math.exp方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: gaussianKernel
import org.joml.Math; //導入方法依賴的package包/類
/**
* Generate a Gaussian convolution kernel with the given number of rows and columns, and store
* the factors in row-major order in <code>dest</code>.
*
* @param rows
* the number of rows (must be an odd number)
* @param cols
* the number of columns (must be an odd number)
* @param sigma
* determines how big the factors are at the center of distribution
* @param dest
* will hold the kernel factors in row-major order
*/
public static void gaussianKernel(int rows, int cols, float sigma, float[] dest) {
if ((rows & 1) == 0) {
throw new IllegalArgumentException("rows must be an odd number");
}
if ((cols & 1) == 0) {
throw new IllegalArgumentException("cols must be an odd number");
}
if (dest == null) {
throw new IllegalArgumentException("dest must not be null");
}
if (dest.length < rows * cols) {
throw new IllegalArgumentException("dest must have at least " + (rows * cols) + " remaining values");
}
float sum = 0.0f;
for (int i = 0, y = -(rows - 1) / 2; y <= (rows - 1) / 2; y++) {
for (int x = -(cols - 1) / 2; x <= (cols - 1) / 2; x++, i++) {
float k = (float) Math.exp(-(y * y + x * x) / (2.0 * sigma * sigma));
dest[i] = k;
sum += k;
}
}
for (int i = 0; i < rows * cols; i++) {
dest[i] = dest[i] / sum;
}
}