本文整理汇总了C++中DoubleArray::begin方法的典型用法代码示例。如果您正苦于以下问题：C++ DoubleArray::begin方法的具体用法？C++ DoubleArray::begin怎么用？C++ DoubleArray::begin使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DoubleArray的用法示例。
在下文中一共展示了DoubleArray::begin方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: applyMask
/*
This has a funny way of dealing with edges. In case of a Gaussian blur, divides by the sum of all of the numbers in the mask by definition. Might prove harsh on edges. In all other cases, divides by 8 no matter what, so that can equalize at edges. Also, when one of the pixels needed in the mask calculation is off the bounds of the image, the center pixel value is substituted, so that there is less difference. This doesnt pick up as many stray lines on edges, but also proves to often not pick up enough lines.
*/
DoubleArray Mask::applyMask(DoubleArray array){
ICoord size = array.size();
DoubleArray newarray = DoubleArray(size);
width = (int)maskArray.size()(0)/2; /* in case the maskArray was edited */
for (DoubleArray::iterator i = array.begin();i !=array.end(); ++i){
ICoord curr = i.coord();
double num = 0;
double c = 0;
int d = 1;
for (int i = -width; i <= width; ++i){ // scans through the mask
for (int j = -width; j <= width; ++j){
ICoord a = ICoord(i,j);
if (pixelInBounds(curr + a, size)){
num = num + array[curr+a]*maskArray[ICoord(i + width, j + width)];
c = c + maskArray[ICoord(i + width, j + width)];
}
else{
num = num + array[curr]*maskArray[ICoord(i + width, j + width)]; /* if pixel needed for mask is out of the image, then substitute the center pixel */
d = d + 1; /* count number of pixels out of bounds */
}
}
}
if (type == GAUSSIAN_MASK)
newarray[curr] = num/159;
else if (type == SMALL_GAUSSIAN_MASK)
newarray[curr] = num/99;
else
newarray[curr] = num/8;
}
return newarray;
}