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Fix problems with border extrapolation in kernel. Add Isolated/Nonisolated borders.

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This commit is contained in:
Vladimir Bystricky
2013-12-11 16:57:47 +04:00
parent 44126e350a
commit 268d814d18
3 changed files with 48 additions and 26 deletions
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28
modules/imgproc/src/smooth.cpp
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@@ -667,6 +667,14 @@ static bool ocl_boxFilter( InputArray _src, OutputArray _dst, int ddepth,
size_t globalsize[2] = {sz.width, sz.height};
size_t localsize[2] = {0, 1};
UMat src; Size wholeSize;
if (!isIsolatedBorder)
{
src = _src.getUMat();
Point ofs;
src.locateROI(wholeSize, ofs);
}
size_t maxWorkItemSizes[32]; device.maxWorkItemSizes(maxWorkItemSizes);
size_t tryWorkItems = maxWorkItemSizes[0];
for (;;)
@@ -685,8 +693,9 @@ static bool ocl_boxFilter( InputArray _src, OutputArray _dst, int ddepth,
int requiredLeft = (int)BLOCK_SIZE; // not this: anchor.x;
int requiredBottom = ksize.height - 1 - anchor.y;
int requiredRight = (int)BLOCK_SIZE; // not this: ksize.width - 1 - anchor.x;
int h = sz.height;
int w = sz.width;
int h = isIsolatedBorder ? sz.height : wholeSize.height;
int w = isIsolatedBorder ? sz.width : wholeSize.width;
bool extra_extrapolation = h < requiredTop || h < requiredBottom || w < requiredLeft || w < requiredRight;
if ((w < ksize.width) || (h < ksize.height))
@@ -719,10 +728,19 @@ static bool ocl_boxFilter( InputArray _src, OutputArray _dst, int ddepth,
_dst.create(sz, CV_MAKETYPE(ddepth, cn));
UMat dst = _dst.getUMat();
UMat src = _src.getUMat();
if (src.empty())
src = _src.getUMat();
int idxArg = 0;
idxArg = kernel.set(idxArg, ocl::KernelArg::ReadOnlyNoSize(src));
idxArg = kernel.set(idxArg, ocl::KernelArg::PtrReadOnly(src));
idxArg = kernel.set(idxArg, (int)src.step);
int srcOffsetX = (int)((src.offset % src.step) / src.elemSize());
int srcOffsetY = (int)(src.offset / src.step);
int srcEndX = (isIsolatedBorder ? (srcOffsetX + sz.width) : wholeSize.width);
int srcEndY = (isIsolatedBorder ? (srcOffsetY + sz.height) : wholeSize.height);
idxArg = kernel.set(idxArg, srcOffsetX);
idxArg = kernel.set(idxArg, srcOffsetY);
idxArg = kernel.set(idxArg, srcEndX);
idxArg = kernel.set(idxArg, srcEndY);
idxArg = kernel.set(idxArg, ocl::KernelArg::WriteOnly(dst));
float borderValue[4] = {0, 0, 0, 0};
double borderValueDouble[4] = {0, 0, 0, 0};