Opencv图像拼接混合（多频段混合）

Question

我正在尝试使用cv::detail::MultiBandBlender中#include "opencv2/stitching/detail/blenders.hpp"中的OpenCV 3.2中的搅拌器将我刚拼接过的图像中的接缝混合在一起。我找不到很多文档，甚至更少的编码示例，但我找到了一个很好的博客，帮助解释了步骤here。

当我运行代码时，我得到以下error:/opencv/modules/core/src/copy.cpp:1176: error: (-215) top >= 0 && bottom >= 0 && left >= 0 && right >= 0 in function copyMakeBorder

以下是混合的代码（假设拼接，找到的warpPerspective和单应性是正确的）

//Mask of iamge to be combined so you can get resulting mask
Mat mask1(image1.size(), CV_8UC1, Scalar::all(255));
Mat mask2(image2.size(), CV_8UC1, Scalar::all(255));
Mat image1Updated, image2Updated;
//Warp the masks and the images to their new posistions so their are of all the same  size to be overlayed and blended
warpPerspective(image1, image1Updated, (translation*homography), result.size(), INTER_LINEAR, BORDER_CONSTANT,(0));
warpPerspective(image2, image2Updated, translation, result.size(), INTER_LINEAR, BORDER_TRANSPARENT,   (0));
warpPerspective(mask1, mask1, (translation*homography), result.size(), INTER_LINEAR, BORDER_CONSTANT,(0));
warpPerspective(mask2, mask2, translation, result.size(), INTER_LINEAR, BORDER_TRANSPARENT,   (0));

//create blender
detail::MultiBandBlender blender(false, 5);
//feed images and the mask areas to blend
blender.feed(image1Updated, mask1, Point2f (0,0));
blender.feed(image2Updated, mask2, Point2f (0,0));
//prepare resulting size of image
blender.prepare(Rect(0, 0, result.size().width, result.size().height));
Mat result_s, result_mask;
//blend
blender.blend(result_s, result_mask);

当我尝试blender.feed

时发生错误

略微注意;制作搅拌机的面罩时，面罩应该是整个图像还是只是在针迹过程中相互重叠的图像区域？

感谢您提前提供任何帮助

修改

我有它的工作，但我现在得到这个混合成像。 这是没有混合参考的拼接图像。 关于如何改进的任何想法？

Answer 1

1. 在blender.feed之前使用blender.prepare
2. 重新设计您的面罩（半个255半0）

//Mask of the image to be combined so you can get resulting mask
Mat mask1, mask2;
mask1 = optimalSeamMask(energy, path);
mask2 = ones(mask1.rows, mask1.cols)*255-mask1

Mat image1Updated, image2Updated;
//Warp the masks and the images to their new posistions so their are of all the same  size to be overlayed and blended
warpPerspective(image1, image1Updated, (translation*homography), result.size(), INTER_LINEAR, BORDER_CONSTANT,(0));
warpPerspective(image2, image2Updated, translation, result.size(), INTER_LINEAR, BORDER_TRANSPARENT,   (0));
warpPerspective(mask1, mask1, (translation*homography), result.size(), INTER_LINEAR, BORDER_CONSTANT,(0));
warpPerspective(mask2, mask2, translation, result.size(), INTER_LINEAR, BORDER_TRANSPARENT,   (0));

//create blender
detail::MultiBandBlender blender(false, 5);
//feed images and the mask areas to blend
blender.prepare(Rect(0, 0, result.size().width, result.size().height));
blender.feed(image1Updated, mask1, Point2f (0,0));
blender.feed(image2Updated, mask2, Point2f (0,0));
//prepare resulting size of image
Mat result_s, result_mask;
//blend
blender.blend(result_s, result_mask);