Opencv concatenates two images

Directly paste the source code

Source: http://www.myexception.cn/image/1498389.html

Lab results

Left.jpg ????????????????????????????

Right.jpg

Imagematch.jpg

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# Include <iostream>

# Include <iomanip>

# Include "opencv2/CORE. HPP"

# Include "opencv2/objdetect. HPP"

# Include "opencv2/features2d/features2d. HPP"

# Include "opencv2/highgui. HPP"

# Include "opencv2/calib3d/calib3d. HPP"

# Include "opencv2/nonfree. HPP"

# Include "opencv2/imgproc/imgproc_c.h"

# Include "opencv2/legacy. HPP"

# Include "opencv2/legacy/compat. HPP"

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Using namespace CV;

Using namespace STD;

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Int main ()

{

???? Mat leftimg = imread ("left.jpg ");

???? Mat rightimg = imread ("right.jpg ");

???? If (leftimg. Data = NULL | rightimg. Data = NULL)

???????? Return 0;

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???? // Convert to grayscale

???? Mat leftgray;

???? Mat rightgray;

???? Cvtcolor (leftimg, leftgray, cv_bgr2gray );

???? Cvtcolor (rightimg, rightgray, cv_bgr2gray );

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???? // Obtain the common feature points of the two images

???? Int minhessian = 400;

???? Surffeaturedetector detector (minhessian );

???? Vector <keypoint> leftkeypoints, rightkeypoints;

???? Detector. Detect (leftgray, leftkeypoints );

???? Detector. Detect (rightgray, rightkeypoints );

???? Surfdescriptorextractor extractor;

???? Mat leftdescriptor, rightdescriptor;

???? Extractor. Compute (leftgray, leftkeypoints, leftdescriptor );

???? Extractor. Compute (rightgray, rightkeypoints, rightdescriptor );

???? Flannbasedmatcher;

???? Vector <dmatch> matches;

???? Matcher. Match (leftdescriptor, rightdescriptor, matches );????

???? Int matchcount = leftdescriptor. Rows;

???? If (matchcount> 15)

???? {

???????? Matchcount = 15;

???????? // Sort (matches. Begin (), matches. Begin () + leftdescriptor. Rows, distancelessthan );

???????? Sort (matches. Begin (), matches. Begin () + leftdescriptor. Rows );

????}????

???? Vector <point2f> leftpoints;

???? Vector <point2f> rightpoints;

???? For (INT I = 0; I <matchcount; I ++)

???? {

???????? Leftpoints. push_back (leftkeypoints [matches [I]. queryidx]. Pt );

???????? Rightpoints. push_back (rightkeypoints [matches [I]. trainidx]. Pt );

????}

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???? // Obtain the projection ing from the left image to the right image

???? Mat homo = findhomography (leftpoints, rightpoints );

???? Mat shftmat = (MAT _ <double> (1.0) <1.0, 0, leftimg. cols, 0, 1.0, 0 );

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???? // Splice the image

???? Mat tiledimg;

???? Warpperspective (leftimg, tiledimg, shftmat * homo, size (leftimg. Cols + rightimg. cols, rightimg. Rows ));

???? Rightimg. copyto (MAT (tiledimg, rect (leftimg. cols, 0, rightimg. cols, rightimg. Rows )));

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???? // Save the image

???? Imwrite ("tiled.jpg", tiledimg );

????????

???? // Display the spliced Image

???? Imshow ("tiled image", tiledimg );

???? Waitkey (0 );

???? Return 0;

}

Opencv concatenates two images