calib3d: fix warning from gcc7

FrazerClews · Aug 25, 2017 · e0ff510 · e0ff510
1 parent ef7833a
commit e0ff510
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/modules/calib3d/src/solvepnp.cpp b/modules/calib3d/src/solvepnp.cpp
@@ -137,7 +137,7 @@ bool solvePnP( InputArray _opoints, InputArray _ipoints,
         CvMat c_cameraMatrix = cameraMatrix, c_distCoeffs = distCoeffs;
         CvMat c_rvec = rvec, c_tvec = tvec;
         cvFindExtrinsicCameraParams2(&c_objectPoints, &c_imagePoints, &c_cameraMatrix,
-                                     c_distCoeffs.rows*c_distCoeffs.cols ? &c_distCoeffs : 0,
+                                     (c_distCoeffs.rows && c_distCoeffs.cols) ? &c_distCoeffs : 0,
                                      &c_rvec, &c_tvec, useExtrinsicGuess );
         result = true;
     }