void
ImageSearch::search(PNG& srchImg) {
const PNGHelper subImageHelper(srchImg);
const int maxRow = mainImage.getHeight() - srchImg.getHeight();
const int maxCol = mainImage.getWidth() - srchImg.getWidth();
const int pixMatchNeeded = srchImg.getBufferSize() * matchPercent / 400;
for(int col = 0; (col <= maxCol); col++) {
for(int row = 0; (row <= maxRow); row++) {
const MatchedRect srchRegion(row, col, srchImg.getWidth(),
srchImg.getHeight());
if (mrl.isMatched(srchRegion)) {
// Current search rgion is already part of a region
// matched earlier in this method (same as thread).
continue;
}
// Search for a match between sub-images.
PNGHelper mainImgHelper(mainImage, row, col);
int pixMatch = getMatchingPixelCount(isMask, mainImgHelper, subImageHelper,
srchImg.getHeight(),
srchImg.getWidth(), tolerance);
if (pixMatch > pixMatchNeeded) {
// Found a matching region.
mrl += srchRegion;
}
}
}
}
